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Java Jobs in London
Overview
Looking for top Java jobs in London? Explore the latest Java developer roles in the heart of the UK tech scene on Haystack. Whether you're a seasoned Java engineer or a junior developer, find exciting opportunities with leading companies across London. Start your next Java career move today with Haystack’s easy-to-navigate job board!
Principal Software Engineer - AI and Innovation
Morson Edge
London
Remote or hybrid
Senior
£100,000
RECENTLY POSTED

Principal Software Engineer – AI & Innovation

Recruiting a Principal Software Engineer with a proven track record of delivering innovative, AI driven solutions and the curiosity to explore beyond traditional technology boundaries.

Within the newly createdAI & Innovation team, you will shape the future of the organisation’s products through cutting-edge technology, experimentation and creative thinking.

A truly exciting opportunity to influence and create something new.

Key Responsibilities

Build innovative MVPs to validate ideas and accelerate learning

Lead the design and implementation of scalable, high-performance software systems

Collaborate closely with Product, Design, QA, and Engineering teams

Evaluate, experiment and recommend new technologies, frameworks and tools

Mentor and coach engineers to create a culture of innovation and continuous improvement

Oversee code reviews and ensure delivery of high-quality maintainable software

Troubleshoot and resolve complex technical challenges

Contribute to strategic planning and align technology decisions with business goals

Essential Skills

Significant experience in a senior software engineering position

Proven experience delivering innovative AI solutions

Practical knowledge of AI, including building and training LLMs

Strong understanding of Microservices and modern web architectures

Deep expertise in programming languages and frameworks such as Java and Spring Boot

Extensive experience designing large-scale systems

Strong knowledge of AWS cloud architecture and services

Excellent problem-solving skills and a results-driven mindset

Experience mentoring and guiding technical teams to deliver

Desirable Experience

DevOps practices and CI/CD pipelines

Secure-by-design development and security best practices

Contributions to open-source projects

TPBN1_UKTJ

Lead Enterprise Architect
FBI &TMT
London
Hybrid
Senior
£100,000
RECENTLY POSTED

Our client, a reputable entity in the Insurtech, Fintech, Technology, and Medical sectors, is in search of a Lead Solutions Architect. This is a permanent role with a hybrid working pattern, requiring two days per week in any of our client’s offices. We are open to discussing flexible working hours.

About The Role:

This newly created position will bridge various entities within the organisation, ensuring intellectual property, platforms, and new developments are transferred, adopted, and co-developed effectively. The primary focus will be on advancing health insurance systems to deliver meaningful impact at scale.

Key Responsibilities:

Technology Transfer & Governance:

  • Manage targeted and structured transfer of code, services, and assets.
  • Maintain authoritative documentation covering functional scope, design, architecture, and code status.
  • Ensure remediation backlogs are tracked and closed.

Innovation Scouting & Sharing:

  • Monitor new features, R&D, and platform developments.
  • Provide visibility to evaluate applicability for Asian markets.
  • Curate an Innovation Radar for leadership regarding upcoming platform releases and opportunities.

Joint Development & Collaboration Facilitation:

  • Lead the technical framing, design, and planning of joint development initiatives.
  • Define architectural blueprints, integration designs, delivery models, and cost/pricing estimates.
  • Coordinate multi-party technical teams to deliver agreed-upon outcomes.

Platform Evangelism & Adoption:

  • Champion the Technical Platform (TP) for health assets.
  • Promote adoption of TP as the foundation for wellness and health solutions in Asia.
  • Translate the platform’s value into tangible business benefits for various markets.

Job Requirements:

  • Significant experience in enterprise software engineering/architecture.
  • Proven track record leading multi-geography, multi-vendor technical collaborations.
  • Deep understanding of cloud SaaS architectures and insurance/health-tech domains.
  • Hands-on technical credibility (Java, Kafka, AWS) combined with executive presence and negotiation skills.
  • Demonstrable expertise in tools/technologies for the design, development, build, testing and deployment of various applications.
  • Experience in health insurance systems.

Benefits:

  • Bonus schemes to reward performance.
  • Employer contribution pension scheme up to 20%.
  • Award-winning health insurance with unique rewards.
  • Life assurance offering four times annual salary.
  • Variety of other employee benefits.

If you are a seasoned IT Architect with a passion for innovation and collaboration, we encourage you to apply now to join our client’s dynamic and talented team.

Technical Assessment Lead - 6 month FTC
TPXImpact Holdings Plc
London
Remote or hybrid
Senior
£85,000/day
RECENTLY POSTED
+2

About The Role

TPXimpact is delivering huge impact to a range of clients across UK public sector, and with some exciting new wins we need to grow rapidly to meet our demand.

Were looking for asenior technical leaderto support the surge growth of our Software Engineering practice by ensuring we hire engineers who meet the highest standards technically, architecturally, and interpersonally.

This isnt a recruiter role, but ahigh-trust positionfor someone who has built and scaled teams before, understands what good looks like, and can support us in making confident, consistent hiring decisions.

Working closely with the Head of Software Engineering, youll lead technical assessments, shape interview processes, and coach others in the practice to apply high-quality, values-aligned evaluation. Your insight will help us grow faster without compromising on quality or culture.

Responsibilities

  • Conduct in-depth technical assessments and code reviews for engineering candidates.
  • Lead technical interviews focused on software design, coding quality, systems thinking, and consultancy skills.
  • Develop and maintain high-quality assessment frameworks and rubrics.
  • Ensure assessment processes are fair, inclusive, and consistently applied across interviewers.
  • Act as a trusted decision-maker in hiring panels, helping to shape the future of the practice.
  • Collaborate with Talent Acquisition and Engineering leadership to improve hiring efficiency.
  • Coach and support interviewers across the practice to raise assessment quality and confidence.
  • Monitor and advise on the effectiveness of technical testing environments and candidate experience.
  • Champion the importance of engineering craft and a consultancy mindset in all hiring decisions.
  • Identify and help remove process bottlenecks that impact assessment throughput.
  • Stay current with industry trends in technical hiring and bring insights into the team.
  • Contribute to a culture of technical excellence and values-led hiring.

Dimensions

Budget:N/A

Headcount:0 (but responsible for the technical evaluation of multiple candidates)

Complexity:

  • Apply technical and consultancy experience to assess high-calibre candidates in a fast-moving hiring environment. This will involve profile screening, conducting interviews, evaluating code tests, and providing recommendations to the Head of Software Engineering for the final hiring decision.
  • Guide and develop robust assessment processes across multiple engineering disciplines and hiring teams.
  • Influence strategic hiring conversations and help remove bottlenecks in the assessment throughput process.
  • Operate with high autonomy and trust, balancing quality, candidate experience, and hiring velocity.

Internal/External Interactions:

  • Collaborate regularly with Engineering Leads, Talent Acquisition, and Hiring Managers.
  • Represent the practice in candidate interviews and provide clear, actionable feedback to stakeholders.

Strategic Timeframe:

  • Immediate to mid-term, supporting the scaling of the Software Engineering practice in line with strategic growth plans.

About YouProfessional knowledge and experience

Essential:

  • Significant hands-on experience as a Senior, Lead, or Principal Engineer in modern full-stack environments (e.g., .NET, React, Java, Python).

  • Proven track record of scaling teams and making high-quality technical hiring decisions.

  • Deep knowledge of software architecture, clean code principles, and maintainable systems.

  • Familiarity with cloud platforms (AWS, Azure, GCP), CI/CD pipelines, and containerisation (e.g., Docker, Kubernetes).

  • Comfortable leading interviews and assessing both technical depth and soft skills.

Desirable:

  • Experience in consultancy or client-facing environments.
  • Prior involvement in designing or running large-scale technical assessment processes.
  • Familiarity with inclusive hiring practices and building diverse teams.

Skills

  • Technical Assessment & Evaluation:

    • Deep expertise in reviewing code and evaluating architecture, design patterns, and problem-solving approaches.
    • Consistent and objective application of scoring frameworks and rubrics.
    • Ability to assess candidate potential, not just experience.
  • Collaboration & Coaching:

    • Ability to guide and mentor others in conducting high-quality technical interviews.
    • Strong cross-functional collaboration skills with hiring teams and talent functions.
  • Strategic Hiring Support:

    • Understanding of scaling challenges and how technical assessments influence long-term delivery capability.
    • Experience in introducing improvements to increase hiring efficiency while maintaining quality.
  • Consultancy & Communication:

    • Skilled in evaluating candidates communication, judgment, and team-fit especially in a consulting context.
    • Ability to clearly articulate assessment decisions to stakeholders and candidates.

About UsPeople-Powered Transformation

We’re a purpose driven organisation, supporting organisations to build a better future for people, places and the planet. Combining vast experience in the public, private and third sectors and expertise in human-centred design, data, experience and technology, were creating sustainable solutions ready for an ever-evolving world.

At the heart of TPXimpact, were collaborative and empathetic. Were a team of passionate people who care deeply about the work we do and the impact we have in the world. We know that change happens through people, with people and for people. Thats why we believe in people-powered transformation.

Working in close collaboration with our clients, we seek to understand their unique challenges, questioning assumptions and building in their teams the capabilities and confidence to continue learning, iterating and adapting.

Benefits Include:

  • 30 days holiday + bank holidays
  • 2 volunteer days for causes that you are passionate about
  • Maternity/paternity - 6 months Maternity Leave, 3 months Paternity Leave
  • Life assurance
  • Employer pension contribution of 5%
  • Health cash plan
  • Personal learning and development budget
  • Employee Assistance Programme
  • Access to equity in the business through a Share Incentive Plan
  • Green incentive programmes including Electric Vehicle Leasing and the Cycle to Work Scheme
  • Financial advice
  • Health assessments

About TPXimpact - Digital Transformation

We drive fundamental change in approaches to product and service development, delivery and technology. Our agile, multidisciplinary teams use technology, design and data to deliver better results, improving outcomes for individuals, organisations and communities.

By working in the open, in partnership with our clients, we not only transform their systems and services but also build the capability of their teams, so work can continue without us in the longer term. Our focus is sustainable change, always delivered with positive impact.

We are committed to having a positive impact on the clients and the communities we serve. We actively encourage applications from all genders, ethnicities, disabled people, members of the LGBTQIA+ community, and those from lower socio-economic backgrounds.

Dont meet 100% of the criteria? We still want to hear from you. Please let us know if you require any adjustments during the recruitment process.

Quantitative Analyst
Spectrum It Recruitment Limited
London
In office
Graduate - Junior
£100,000
RECENTLY POSTED

Excellent opportunity for a Quantitative Analyst who is passionate about sports to join an excellent client’s team based in central London. The successful Quantitative Analyst will join a very talented team and will be expected to interpret, filter, and analyse very large data sets whilst working closely with other analysts and developers.
The successful Quantitative Analyst will be a forward-thinking individual who is more than comfortable working to both their own initiative and as a team. You will ideally be educated to at least MSc in a quantitative subject such as Mathematics, Statistics, Computer Science or Physics and any knowledge with sports betting/trading would be beneficial.

This is an office-based role and as well as very competitive salaries, our client offers an excellent working environment.

Skills required:

  • Proficient in several of the following: Python, C#, C++, Java
  • Mathematical Modelling
  • Mathematical skills, particularly a keen understanding of probabilities and statistics
  • Analytic mindset
  • Strong communication skills
  • Accuracy and attention to detail
  • Experience in data science
  • An interest in sports - Ideally football or cricket

If you feel you have the skills and experience required for this opportunity, please contact Oliver Wilson at

Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.

Mainframe Developer with CICS Webservices
Stackstudio Digital Ltd.
London
Hybrid
Mid - Senior
£350,000 - £400,000
RECENTLY POSTED
+6

Mainframe Developer With Cics Webservices Job Description Role Overview

Role / Job Title: Mainframe Developer with CICS Webservices

Work Location: London
Mode of Working: Hybrid
Office Requirement (if hybrid): 2 3 days a week

Key Skills Required

Mainframes
CICS Webservices

Required Skills

Experience working in ZOS Connect EE and DB2 REST, with extensive knowledge in CICS webservices.
Development experience using FileAid, Xpeditor, IBM Explorer for z/OS, and Visual Studio.
Proficient with SOAP, WSDL, and JSON, with a comprehensive understanding of SOA and RESTful APIs.
Experience working with code repositories, bug tracking tools, and wikis. Tools include GitLab, Endevor, JIRA, and Confluence.
Knowledge of different security integration patterns such as basic authentication, client authentication (mTLS), and OAuth (JWT).
Experience with DevOps and Agile methodologies and associated toolsets and practices, including CI/CD and Jenkins.

Desirable Skills / Knowledge / Experience Option 1: Java-Based Skills

Java skill set.
Strong foundation in Java, including OOP and functional programming (Java 8+).
Familiarity with Spring Boot annotations, configuration, and how it simplifies Spring application setup and deployment.
RESTful API development experience.

Option 2: Integration & Middleware Skills

Hands-on experience using DataPower appliances.
Development experience using XSLT, Gateway Script, and XPath.

Security Architect (DevSecOps)
Henderson Scott
London
Hybrid
Mid - Senior
£650,000 - £675,000
RECENTLY POSTED

Location: Remote / London (Hybrid) Rate: £660 per day (Inside IR35) Clearance: Active SC & NPPV3 Required

We are seeking a highly technical Security Architect with a strong background in DevSecOps to join a critical public sector digital programme. This role offers a unique blend of hands-on technical investigation within AWS and high-level architectural design to define the future of secure cloud-native services.

The Role

You will be embedded within a cross-functional engineering team, acting as the bridge between development and security. Your remit will involve:

  • AWS Investigation: Deep-dive analysis into enterprise AWS deployments to identify vulnerabilities and optimise security posture.
  • Security Design: Defining security solutions, guardrails, and ‘ways of working’ for engineering squads.
  • Automation: Embedding security tooling into automated CI/CD pipelines to ensure a ‘secure by design’ approach.

Technical Stack & Requirements

Core AWS Security:

  • Expertise in AWS Security Hub, GuardDuty, AWS Inspector, and AWS Config.
  • Deep knowledge of AWS IAM, STS, and complex policy structures.
  • Hands-on with Firewall Manager, Security Groups, and IAM Analyzer.

DevSecOps & Tooling:

  • CI/CD: Jenkins pipelines and GitLab source code management.
  • Artifact Management: Artifactory and JFrog X-Ray for vulnerability scanning.
  • Infrastructure as Code: Terraform expertise (including scanning tools like Checkov or Prowler).
  • Modern Tech: Security oversight for Containers (EKS/ECS), Lambda, and Java Microservices.

Supplementary Skills:

  • Identity & Access: OAuth 2.0, JWT, and Microsoft Entra (Azure AD).
  • Exposure to React.JS (from a security review perspective).

Apply now for immediate consideration

Blue Prism Developer
Rec3 Global Ltd
London
Hybrid
Mid - Senior
£60,000
RECENTLY POSTED

Global Workspace Provider

Hybrid In the London office 3 times per week

Up to £60k base + 10% bonus + company benefits

Permanent

Rec3 is proud to be working with the worlds number one workspace provider globally, who help 8 million people across six continents work flexibly and more productively.

Our client has spent over 30 years redefining how people and businesses work, now theyre shaping the workspace of the future. With energy, ambition and an innovative mindset, theyre turning big ideas into reality.

As part of their ongoing growth our clients Process Excellence & Automation team is expanding after having already delivered a tonne of benefits through the use of RPA & Intelligent Automation. They are looking to hire an experienced Blue Prism Developer.

The expectation as the Developer, youll be responsible for designing, developing, testing, and deploying Blue Prism automations end to end. This includes building reusable objects and processes in line with best practices, supporting live bots, troubleshooting issues, and managing ongoing enhancements. Youll also work with stakeholders to understand business processes and translate them into well-designed automation solutions, while ensuring documentation, governance, and change management standards are followed.

Youll be comfortable working in an enterprise RPA environment and confident automating processes across multiple applications. Blue Prism certifications, experience in Agile delivery teams, or exposure to other RPA or intelligent automation tools would be a bonus, but not essential.

Required Skills & Experience

  • 4+ years of hands-on Blue Prism development experience and BPM Workflows, to demonstrate expert knowledge and significant experience in implementation
  • Strong experience automating business processes across multiple applications
  • Solid knowledge of exception handling, scheduling and release management
  • Strong understanding and proven experience in RESTful APIs and Webservices
  • Confident communicator with the ability to explain technology to non-technical audiences
  • Background in Software Engineering using C#, C++, Java would be a hugebonus
Backend Software Engineer Go AWS
client server
London
Hybrid
Mid - Senior
£85,000
RECENTLY POSTED
+2

Backend Software Engineer / Developer (Go / Golang AWS) London to £80k

Are you a data savvy, backend focussed Software Engineer who enjoys using a range of programming languages with exposure across the full tech stack?

You could be progressing your career working on bleeding edge, Machine Learning and AI powered, audio fraud detection software used by all UK banks, the emergency services and a range of other clients to prevent and detect fraudulent call activities.

As a Software Engineer you’ll join a collaborative Agile team responsible for building and maintaining the critical, cloud (AWS) based data processing platform that enables real-time call risk analysis. You’ll use a range of technology, with a focus on Golang, TypeScript and AWS, to maintain and improve a large microservices architecture.

There’s an open, collaborative environment where learning and personal development are key and there’s a strong pipeline of Greenfield projects as well as flexible working and a host of benefits; the company has been awarded Platinum standard by Investors in People and is multi-award winning with various DEI initiatives and excellent personal growth and career development opportunities.

Location / WFH:

You can work from home most of the time, joining colleagues in the London two days a week; when you are in the office you can enjoy a friendly team environment that encourages knowledge sharing and close collaboration.

About you:

You have advanced analytical and problem solving skills with a strong knowledge of Computer Science fundamentals such as OOP, Data Structures, Deign Patterns, Algorithms

You have commercial Golang development experience (likely to have a background with other OO languages such as Python, Java, C++ but you must be happy to use Golang going forward)

You have a strong knowledge of AWS - they’re using AWS SNS & SQS, Amazon CDK, DynamoDB, Redshift, Lambda, Fargate

You have worked on critical systems that cannot afford to fail

You have experience with SOLID design principles and TDD (Test Driven Development)

You have a good understanding of APIs, databases, NoSQL, event driven architectures, microservices and CI/CD

You have full software development lifecycle experience

You enjoy collaborating and have great communication skills

What’s in it for you:

As a Backend Software Engineer you will earn a competitive package:

Salary to £80k + bonus

25 days holiday (with the option to buy 5 more)

Flexible working (including working from home start / finish times)

Enhanced maternity and paid parental leave packages

Time off to participate in charity initiatives such as Code Club

Pension, Life Assurance, Medical care for you and your family

Monthly Wellness budget to spend on what you like

Gym membership

Annual home office budget

Diverse, inclusive team culture with flexible working

Apply now to find out more about this Backend Software Engineer / Developer (Go / Golang AWS) opportunity.

TPBN1_UKTJ

Enterprise Systems Developer
Sanderson Government and Defence
London
Hybrid
Mid - Senior
£85,000
RECENTLY POSTED

Enterprise Systems Developer - Hybrid Role

Role Overview

The Enterprise Systems Developer will design, develop, and maintain scalable enterprise-level applications, with a focus on system integrations and data flows. The role requires close collaboration with business stakeholders and technical teams to deliver robust, high-quality solutions that meet operational needs. Key responsibilities include:

  • Design, build, and maintain enterprise systems, ensuring smooth integration and data mapping.
  • Troubleshoot and resolve technical and functional issues related to system integrations.
  • Collaborate with stakeholders to gather requirements and translate them into technical specifications.
  • Plan and implement system updates, upgrades, and deployments.
  • Document technical designs, coding, configurations, and testing processes.
  • Identify and mitigate risks, maintaining compliance with security and regulatory standards.
  • Mentor junior developers and contribute to continuous improvement initiatives.

Skills and Experience

  • Strong understanding of system integration concepts, including REST/SOAP APIs and data mapping.
  • Experience with XML, JSON, SQL, and relational databases.
  • Proficiency in programming languages such as Java, C#, or Python.
  • Familiarity with cloud platforms (AWS, Azure, etc.) and microservices architecture.
  • Experience with enterprise systems, ERP solutions, HCM platforms, and integration tools; training can be provided.
  • Strong problem-solving, analytical, and communication skills.
  • Ability to work collaboratively in a fast-paced, innovative environment.
  • Certification in relevant technologies is desirable (e.g., cloud, database, or enterprise application certifications).

Eligibility

Applicants must be eligible to obtain Security Clearance (SC), typically requiring British citizenship and residence in the UK for the past five years.

How to Apply

Interested candidates should submit an up-to-date CV for consideration. Feedback will be provided following the review of applications.

Reasonable Adjustments:

Respect and equality are core values to us. We are proud of the diverse and inclusive community we have built, and we welcome applications from people of all backgrounds and perspectives. Our success is driven by our people, united by the spirit of partnership to deliver the best resourcing solutions for our clients.

If you need any help or adjustments during the recruitment process for any reason, please let us know when you apply or talk to the recruiters directly so we can support you.

Fidessa Engineer
McGregor Boyall Associates Limited
London
In office
Senior
£800/day
RECENTLY POSTED

Role: Fidessa Engineer (OMS / EMS Specialist)
Location: London - 100% on-site
Contract Duration: 12 months

Rate: up to £800 p/d (via PAYE)

We are looking for an experienced Fidessa Engineer to join a Trading Technology team focused on modernising equities execution platforms. This contract role will play a key part in integrating an in-house OMS with Fidessa EMS and shaping the transition toward a scalable, multi-EMS / headless EMS architecture.

Key Responsibilities

  • Lead the design, build, and deployment of OMS-Fidessa EMS integrations, covering order entry, execution feedback, and allocations.
  • Define and implement FIX connectivity, including session management, execution reports, order routing, and drop copy feeds.
  • Collaborate with Fidessa technical teams to align APIs, feeds, and message schemas with internal OMS standards.
  • Analyse and optimise end-to-end trade workflows from order creation through execution, booking, and reporting.
  • Partner with Front Office, Product, and Risk/Compliance teams to ensure robust trading controls and reporting integrity.
  • Troubleshoot complex OMS-EMS issues related to latency, sequencing, reconciliation, and data consistency.
  • Contribute to architecture and proof-of-concepts for multi-EMS and headless EMS solutions.
  • Produce clear technical documentation, interface specifications, and operational runbooks.

Required Skills & Experience

  • 10+ years’ experience in equities trading technology within buy-side or sell-side environments.
  • Strong hands-on experience with Fidessa EMS and OMS platforms (e.g. Bloomberg AIM, FlexTrade, Charles River, or in-house systems).
  • Deep knowledge of FIX (4.2, 4.4, 5.0), EMS routing rules, Wheel, FDM, and drop copy configurations.
  • Solid understanding of front-to-back trade lifecycle, market structure, and regulatory requirements (MiFID II, Reg NMS, CAT/TRF).
  • Experience with message-driven architectures, SQL, and scripting in Java or Python.
  • Excellent problem-solving skills and the ability to work closely with traders and engineers in fast-paced environments.

Apply today or email your CV to

McGregor Boyall is an equal opportunity employer and do not discriminate on any grounds.

Lead Solutions Architect
FBI &TMT
London
Hybrid
Senior
£100,000
RECENTLY POSTED

Our client, a reputable entity in the Insurtech, Fintech, Technology, and Medical sectors, is in search of a Lead Solutions Architect. This is a permanent role with a hybrid working pattern, requiring two days per week in any of our client’s offices. We are open to discussing flexible working hours.

About The Role:

This newly created position will bridge various entities within the organisation, ensuring intellectual property, platforms, and new developments are transferred, adopted, and co-developed effectively. The primary focus will be on advancing health insurance systems to deliver meaningful impact at scale.

Key Responsibilities:

Technology Transfer & Governance:

  • Manage targeted and structured transfer of code, services, and assets.
  • Maintain authoritative documentation covering functional scope, design, architecture, and code status.
  • Ensure remediation backlogs are tracked and closed.

Innovation Scouting & Sharing:

  • Monitor new features, R&D, and platform developments.
  • Provide visibility to evaluate applicability for Asian markets.
  • Curate an Innovation Radar for leadership regarding upcoming platform releases and opportunities.

Joint Development & Collaboration Facilitation:

  • Lead the technical framing, design, and planning of joint development initiatives.
  • Define architectural blueprints, integration designs, delivery models, and cost/pricing estimates.
  • Coordinate multi-party technical teams to deliver agreed-upon outcomes.

Platform Evangelism & Adoption:

  • Champion the Vitality Technical Platform (VTP) for health assets.
  • Promote adoption of VTP as the foundation for wellness and health solutions in Asia.
  • Translate the platform’s value into tangible business benefits for various markets.

Job Requirements:

  • Significant experience in enterprise software engineering/architecture.
  • Proven track record leading multi-geography, multi-vendor technical collaborations.
  • Deep understanding of cloud SaaS architectures and insurance/health-tech domains.
  • Hands-on technical credibility (Java, Kafka, AWS) combined with executive presence and negotiation skills.
  • Demonstrable expertise in tools/technologies for the design, development, build, testing and deployment of various applications.
  • Experience in health insurance systems.

Benefits:

  • Bonus schemes to reward performance.
  • Employer contribution pension scheme up to 12%.
  • Award-winning health insurance with unique rewards.
  • Life assurance offering four times annual salary.
  • Variety of other employee benefits.

If you are a seasoned IT Architect with a passion for innovation and collaboration, we encourage you to apply now to join our client’s dynamic and talented team.

Technical Lead
Anson McCade
Multiple locations
Remote or hybrid
Senior
£90,000
RECENTLY POSTED

Technical Lead - Digital & Technology Consulting

A leading global innovation and transformation consultancy is looking for an experienced Technical Lead to join its growing technology practice. This role suits someone who enjoys solving complex problems, leading engineering teams, and delivering high-impact digital solutions across diverse industries.

What youll be doing as a Technical Lead:

  • Leading the technical delivery of complex, cloud-based solutions
  • Acting as a hands-on technical authority across architecture, development and troubleshooting
  • Mentoring engineers and promoting modern engineering best practices
  • Working closely with clients to translate business needs into scalable technical solutions
  • Driving continuous improvement across the full software delivery lifecycle

What they are looking for in a Technical Lead:

  • Proven experience as a Technical Lead or Senior engineer
  • Strong software engineering and system design background
  • Experience delivering enterprise applications on AWS, Azure or GCP
  • Proficiency in JavaScript, Java or .NET
  • Agile delivery experience (Scrum / Kanban)
  • Knowledge of DevOps, CI/CD, infrastructure-as-code and modern testing practices
  • Strong communication and stakeholder engagement skills

Whats on offer:

  • Flexible working with autonomy over schedule
  • Competitive salary and performance-related bonus
  • 25 days annual leave plus buy options
  • Excellent pension, healthcare and wellbeing benefits
  • Purpose-led work with clear career progression

Ok I’m in what’s next?

Apply now with your latest CV.

Android Platform Engineer
Sanderson Government and Defence
London
Remote or hybrid
Mid - Senior
Private salary
RECENTLY POSTED
+2

The Android Platform Engineer will be responsible for:

  • Designing, developing, and testing bespoke Android software components
  • Working across the full Android stack, including applications, platform services, and system-level code
  • Collaborating with cross-functional teams to deliver reliable, high-quality software
  • Investigating, troubleshooting, and optimising performance and security issues
  • Contributing to software architecture decisions and promoting best practices for Android development

Candidates should demonstrate:

  • Strong experience in Android app development using Java and Android Studio
  • Exposure to Android or Linux internals
  • Proficiency in low-level coding languages, such as C and C++
  • Understanding of software development lifecycle, testing, and version control (e.g., Git)
  • Familiarity with agile development methodologies, such as Scrum or Kanban
  • Ability to solve complex, technical problems independently and collaboratively

Reasonable Adjustments:

Respect and equality are core values to us. We are proud of the diverse and inclusive community we have built, and we welcome applications from people of all backgrounds and perspectives. Our success is driven by our people, united by the spirit of partnership to deliver the best resourcing solutions for our clients.

If you need any help or adjustments during the recruitment process for any reason, please let us know when you apply or talk to the recruiters directly so we can support you.

Engineering Manager
Stepstone UK
London
Hybrid
Senior - Leader
Private salary
RECENTLY POSTED
+5

Join our team here at StepStone and youll be responsible for providing technical leadership to all engineering and development areas across your domain, developing and executing an engineering strategy aligned to the portfolio and global tech strategies.

Working in the Design and Platform Performance domain, you willlead the technology side of web and mobile analytics for a platform with over 50 million visits each month, deliver the best user experiences and personalisation for talent and talent seekers. We built in-house large scale tracking platform, powered by Tealium, Kafka and Adobe Analytics, and successfully rolled it out to 10 of our brands. Along with the tracking we are owners of our AB testing tool Optimizely, our in-house Design System Genesys and Frontend Framework, which when put together powers the product development at scale using a data driven approach.

You will play a vital role as we reimagine the labour market to make it work for everybody.

Your responsibilities:

  • Managing and mentoring engineering professionals in your teams and domain, setting objectives for your teams and domain, owning the delivery of the outcomes, monitoring ongoing progress and performance within the OKR framework
  • Partnering with your product manager, other engineering managers, staff engineers, architect, agile coach and engineering director to formulate a domain level technical strategy
  • Building and maintaining relationships with both internal and external stakeholders
  • Facilitate communication between teams under your leadership and enabling free exchange of information within your sphere of influence, developing appropriate organisational structure together with the Engineering Director
  • Resourcing of plans to support the business objectives and working with the Engineering Director on budgeting within the domain

Qualifications

  • Experience of providing technical leadership to an engineering team; with excellent analytical, problem solving and influencing skills, resilient, open to change and results oriented
  • Experience of coding and testing of analytics tracking code using Tealium iQ, Tealium Event Stream, and Adobe Analytics
  • Experience of integrating data sources via web and hypermedia APIs
  • Proficient in Web Technologies like HTML, CSS, JavaScript, React.js, Next.js and Node.js, and in event-driven and eventual consistency systems using Kafka, .Net, Java, REST APIs, AWS, Terraform and DevOps
  • Nice to have:experience in data pipping and modelling using SQL, DBT, ETL, Data Warehousing, Redshift and Python, and ecommerce and mobile applications background

Additional Information

Were a community here that cares as much about your life outside work as how you feel when youre with us. Because your job shouldnt take over your life, it should enrich it. Here are some of the benefits we offer:

  • 29 days holiday allowance + bank holidays
  • Private medical and dental healthcare
  • Matching pension contribution of 4 or 5% (after 3 years of service up to 10%)
  • 24/7 Employee Assistance Programme
  • Life Assurance Cover
  • Cycle to work scheme
  • Hybrid working model (3 days working fromthe office)
  • Volunteering days
  • and you can bring your dog to the office onMondays and Fridays!

Our commitment

Equal opportunities are important to us. We believe that diversity and inclusion at The Stepstone Group are critical to our success as a global company, so we want to recruit, develop, and keep the best talent. We encourage applications from everyone, regardless of background, gender identity, sexual orientation, disability status, ethnicity, belief, age, family or parental status, and any other characteristic.

As a global business we further our DEI and sustainability progress by working with national and international bodies and are proud to have been recognised for our work - both locally and internationally, including:

  • Armed Forces Covenant: SilverAward, Employer Recognition Scheme
  • EcoVadis: Bronze Award
  • Fertility Friendly Employer, accredited by Fertility Matters at Work
  • RIDI (Recruitment Industry Disability) Awards: Inclusive Technology Award 2024
  • Stonewall: Gold Award
  • Stonewall: Top 100 Workplace Equality Index (85)
SAP BTP Lead
DXC
London
Remote or hybrid
Senior
Private salary
RECENTLY POSTED

Strengthen our team as our SAP BTP Lead

Location: Home based with travel to client sites

Vetting: Due to security clearance requirements candidates must be eligible for or currently hold SC and be sole UK nationals.

An exciting opportunity has arisen for an experienced SAP BTP Lead to join our team to be responsible for designing and delivering solutions on the SAP Business Technology Platform. This role provides technical leadership across extensions, integrations, automation, and AI services while ensuring clean-core principles and strong platform governance.

Youll collaborate with business and technical teams to drive innovation, modernize architectures, and maximize value from SAPs cloud technologies.

What Youll Do:

  • Lead architecture, design, and implementation of solutions using SAP BTP services such as SAP Build, Integration Suite, Event Mesh, AI Core, and HANA Cloud.
  • Define clean-core extensibility strategies for S/4HANA and SAP cloud applications.
  • Guide teams in building custom apps, workflows, automations, and side-by-side extensions using CAP/RAP and low-code tools.
  • Own integration and API strategies leveraging BTP Integration Suite (APIs, OData, REST/SOAP, event-driven patterns).
  • Provide technical leadership, mentoring developers and ensuring adherence to coding standards and best practices.
  • Manage BTP governance including subaccount design, entitlements, security, cost optimization, and DevOps/transport processes.
  • Collaborate with business analysts, enterprise architects, and leadership to translate business needs into scalable technical solutions.
  • Evaluate emerging SAP technologies (GenAI, Build Code, Event Mesh, etc.) and deliver PoCs to demonstrate business value.
  • Support presales activities including solutioning, demos, estimations, and proposal development.

What We Are Looking For:

  • Strong hands-on experience with SAP BTP services: Integration Suite, SAP Build Apps/Process Automation, Event Mesh, AI Core, and Cloud Foundry/Kyma.
  • Deep understanding of SAP S/4HANA architecture, extensibility models, and clean-core principles.
  • Expertise in API design, integration technologies, and cloud development (CAP, RAP, Node.js, Java).
  • Knowledge of identity and access management (IAS/IPS, OAuth, XSUAA) and security best practices.
  • Experience with CI/CD, Git, deployment automation, and cloud operations.
  • Proven leadership, mentoring experience, and strong communication skills.
  • SAP certifications in BTP, Integration Suite, or related domains are preferred.

About DXC

At DXC, youll join a team that values innovation, collaboration, and impact. We work with major global clients to solve complex challenges and build digital solutions that power transformation. Youll have the opportunity to grow your SAP expertise, share your ideas, and be part of a culture that celebrates continuous learning.

You will also benefit from our Flexible Benefits Package including flexible options for private medical insurance, dental, travel cover, and more. You will also have access to exclusive discounts on restaurants and everyday purchases.

Employee Benefits:

  • As part of our competitive remuneration package, flexible benefits are available. There is an option to flex up and down on specific benefits, for example buy or sell annual leave, Private Medical Benefit, Dental and Travel Insurance
  • You will also have access to Perks at Work, a discount store to purchase gift cards at reduced rates and get discounts on holidays, restaurants, activities, groceries and more

What’s Next

If youre ready to lead cutting-edge BTP innovation and shape the future of cloud architecture across a modern SAP landscape, apply now and take the next step in your career.

Lead AWS Data Engineer
Opus Recruitment Solutions
Multiple locations
In office
Senior
£550/day - £600/day
RECENTLY POSTED

Lead AWS Data Engineer | Birmingham | Finance | AWS | Java | Outside IR35 | Contract | 12 Months Opus is partnered with financial services client to deliver a major programme of work. You’ll join an established engineering group, working alongside internal teams to build a new reporting workflow, upgrade an existing pipeline, and lead a full data‑sourcing uplift across multiple reporting workflows. The team will also be responsible for helping upgrade the framework for two critical internal workflows. This role will require you to be on site in either the London or Birmingham office 5 days per week, please only apply if you hit this criteria. Required Experience Strong background in data engineering within distributed data environments Hands-on expertise with AWS, Spark, Glue, and Snowflake Experience building and optimising data pipelines & reporting workflows Ability to work closely with internal engineering and controls teams Experience upgrading or modernising existing workflows and frameworks For Lead-level: prior experience leading engineering teams or workstreamsTech Stack AWS (Glue, S3, Lambda, Step Functions) Apache Spark Snowflake Java if you are interested in this role then please apply here or email me your most recent and up to date CV, along with your availability  to (url removed) Lead AWS Data Engineer | Birmingham | Finance | AWS | Java | Outside IR35 | Contract | 12 Months

Quantitative Analyst
Spectrum IT Recruitment
London
In office
Graduate - Junior
£90,000 - £100,000

Excellent opportunity for a Quantitative Analyst who is passionate about sports to join an excellent client’s team based in central London. The successful Quantitative Analyst will join a very talented team and will be expected to interpret, filter, and analyse very large data sets whilst working closely with other analysts and developers.
The successful Quantitative Analyst will be a forward-thinking individual who is more than comfortable working to both their own initiative and as a team. You will ideally be educated to at least MSc in a quantitative subject such as Mathematics, Statistics, Computer Science or Physics and any knowledge with sports betting/trading would be beneficial.

This is an office-based role and as well as very competitive salaries, our client offers an excellent working environment.

Skills required:

  • Proficient in several of the following: Python, C#, C++, Java
  • Mathematical Modelling
  • Mathematical skills, particularly a keen understanding of probabilities and statistics
  • Analytic mindset
  • Strong communication skills
  • Accuracy and attention to detail
  • Experience in data science
  • An interest in sports - Ideally football or cricket

If you feel you have the skills and experience required for this opportunity, please contact Oliver Wilson at (url removed)

Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.

Java Developer with SQL & GIT
Randstad Technologies Recruitment
London
Hybrid
Senior
£80,000 - £90,000
+3

Adword

Job title: Java Developer with SQL & GIT

Duration: Permanent

Location: London - Hybrid (3 days a week from office)

Job description:

We are seeking talented Senior Hands on Java Developers to join our core Fixed Income team in lead and support roles To help design develop and implement our applications to support front office and operations groups Work crossfunctionally with various stakeholders trading teams and technology departments to ensure our applications are running at optimal performance You will take a handson approach to understanding business workflows and the products we work with You will help reengineer and modernize our platform and drive our migration to a scalable microservice cloudbased architecture

Qualifications

  • Bachelors or higher degree in computer science engineering or a related discipline or equivalent work experience required
  • 10 years of experience in software development required
  • 5 years of experience working with Fixed Income Products and Associated Electronic Workflows
  • Strong proficiency with Java SQL and Git
  • Very good understanding of industry standard trading protocols like FIX FpML
  • Proficiency with Data Standards Data Modelling
  • Proficiency with textbased formats like XML JSON
  • Strong Proficiency with messaging frameworks MQ Kafka
  • Proficiency with Spring Spring Boot Spring Integration
  • Familiarity with testing patterns and dev ops
  • Familiarity with cloud containerization
  • Comfortable in Windows and Linux environments

If you’re excited about application security, identity management, and creating robust, secure solutions for modern architectures, we want to hear from you!

Please apply with a copy of your CV or send it to Prasanna com and let’s start the conversation!

Randstad Technologies Ltd is a leading specialist recruitment business for the IT & Engineering industries. Please note that due to a high level of applications, we can only respond to applicants whose skills & qualifications are suitable for this position. No terminology in this advert is intended to discriminate against any of the protected characteristics that fall under the Equality Act 2010. For the purposes of the Conduct Regulations 2003, when advertising permanent vacancies we are acting as an Employment Agency, and when advertising temporary/contract vacancies we are acting as an Employment Business.

Principal Software Engineer - AI and Innovation
The Bridge IT Recruitment
Multiple locations
Remote or hybrid
Senior
£100,000 - £120,000

Principal Software Engineer AI & Innovation

Recruiting a Principal Software Engineer with a proven track record of delivering innovative, AI driven solutions and the curiosity to explore beyond traditional technology boundaries.

Within the newly createdAI & Innovation team, you will shape the future of the organisation s products through cutting-edge technology, experimentation and creative thinking.

A truly exciting opportunity to influence and create something new.

Key Responsibilities

  • Build innovative MVPs to validate ideas and accelerate learning
  • Lead the design and implementation of scalable, high-performance software systems
  • Collaborate closely with Product, Design, QA, and Engineering teams
  • Evaluate, experiment and recommend new technologies, frameworks and tools
  • Mentor and coach engineers to create a culture of innovation and continuous improvement
  • Oversee code reviews and ensure delivery of high-quality maintainable software
  • Troubleshoot and resolve complex technical challenges
  • Contribute to strategic planning and align technology decisions with business goals

Essential Skills

  • Significant experience in a senior software engineering position
  • Proven experience delivering innovative AI solutions
  • Practical knowledge of AI, including building and training LLMs
  • Strong understanding of Microservices and modern web architectures
  • Deep expertise in programming languages and frameworks such as Java and Spring Boot
  • Extensive experience designing large-scale systems
  • Strong knowledge of AWS cloud architecture and services
  • Excellent problem-solving skills and a results-driven mindset
  • Experience mentoring and guiding technical teams to deliver

Desirable Experience

  • DevOps practices and CI/CD pipelines
  • Secure-by-design development and security best practices
  • Contributions to open-source projects
Senior Java Developer
Eligo Recruitment Ltd
London
Fully remote
Senior
£85,000 - £95,000
+5

Are you a Back End Java Developer with experience within the iGaming and Gambling sector looking for a new and exciting challenge?

BENEFITS: up to £95k depending on experience, fully remote, excellent benefits package

You will be joining a rapidly expanding company within the iGaming sector, who are committed to providing top-tier gaming experiences to players around the world. They have focused on bringing innovation, transparency, and player satisfaction to the forefront of the industry. And are recognised among the top brands within our market, blending sports betting and online casino entertainment on a cutting-edge, custom-built platform.

You will be a skilled Senior Java Backend Developer who is a self-motivated professional with a strong track record and a passion for excellence. You’ll play a key role in developing innovative iGaming products, leveraging your expertise to drive innovation and efficiency. Your contributions will help deliver high-quality applications and services, reinforcing the company s position as an industry leader.

Core Responsibilities

  • Work closely with the team to implement complex backend logic and platform solutions.
  • Write clean, scalable, and maintainable code, adhering to industry best practices.
  • Stay updated on the latest Java frameworks, libraries, and development techniques.
  • Translate business needs into technical solutions, estimating time, costs, and requirements.
  • Develop, test, and deploy backend solutions that meet client expectations.
  • Provide ongoing support and maintenance for existing and future projects.
  • Collaborate with cross-functional teams to shape and execute product roadmaps.
  • Partner with creative and development teams to bring ideas and projects to life.
  • Create support documentation and deliver training for internal and external users.
  • Leverage industry knowledge in iGaming to enhance solutions and ensure compliance with standards.

Required Experience & Expertise

  • Previous experience within the iGaming and Gambling Sector
  • Expertise in backend development using Java and Spring Boot.
  • Skilled in version control with Git Flow.
  • Proficient in JPA and Hibernate for seamless database interactions.
  • Strong command of SQL for efficient database management.
  • Experience with Redis for caching and performance optimisation.
  • Knowledge of message queueing systems like AWS SQS or RabbitMQ.
  • Well-versed in Test-Driven Development (TDD) with JUnit for robust testing.
  • Understanding of Kubernetes for container orchestration.
  • Familiarity with AWS cloud services for scalable application deployment.

If you’re passionate about building robust, scalable and resilient back end development and want to be part of a collaborative team, we invite you to apply!

Eligo Recruitment is acting as an Employment Business in relation to this vacancy. Eligo is proud to be an equal opportunity employer dedicated to fostering diversity and creating an inclusive and equitable environment for employees and applicants. We actively celebrate and embrace differences, including but not limited to race, colour, religion, sex, sexual orientation, gender identity, national origin, veteran status, and disability. We encourage applications from individuals of all backgrounds and experiences and all will be considered for employment without discrimination. At Eligo Recruitment diversity, equity and inclusion is integral to achieving our mission to ensure every workplace reflects the richness of human diversity.

Quality Assurance - Senior Consultant
Opencast
Multiple locations
Hybrid
Senior - Leader
£56,000 - £68,000

Do you want to make a real impact by ensuring quality in services? Are you ready to grow your skills in a supportive, knowledge-sharing community where you can achieve your potential?

We’re a growing tech consultancy that creates user-centred solutions with purpose for our clients in government, healthcare and purpose-driven businesses. As a Quality Assurance consultant, you’ll ensure that quality assurance is considered from the start through testing, questioning and improving. You’ll apply your adaptability and communication skills across a variety of projects, working with a vibrant QA community that champions learning and knowledge sharing.

The Role

You’ll work on public and private sector projects. You’ll likely be working as a lead software quality engineer on internal and client-facing projects, contributing to the leadership of teams.

Leading by example and promoting the Opencast approach, you’ll support colleagues to develop knowledge and work through challenges in all testing types. You’ll decide the best thing for your team to be working on. You’ll collaborate with team members, clients and users to ensure that high quality is maintained and best practices are followed throughout the project. You’ll adapt to different tools and technologies, advising on the best ones to use.

You’ll ensure that work is carried out in accordance with Opencast’s quality, environmental, and information security policies and procedures, as well as applicable customer policies, standards, and procedures while working on client.

Requirements

Due to the nature of this role, applicants must either currently hold active Security Check (SC) Clearance or be eligible to obtain it.

Eligibility typically requires UK citizenship and continuous residence in the UK for the past five years, with no single absence exceeding 28 consecutive days. As a result, we are unable to progress applications from candidates who do not meet these requirements.

Essential experience

To succeed in this role, you must have experience working as a lead software tester on multiple complex projects and have a good understanding of what it means to be a senior consultant.

In your CV and at interview, you’ll need to show experience of:

• Your working area and how you apply this to your role

• Functional and non-functional automation testing using Playwright with Typescript

• Creating test documentation

• Resolving complex issues and presenting findings to stakeholders

• Creating tasks from high-level requirements

• Defect triage

You’ll need a good understanding of:

  • Basic principles of programming paradigms, such as object-orientated programming and procedural programming
  • The concepts and benefits of OAT testing.

As well as QA skills, there are essential core skills you’ll need to be a great consultant.

In the interview, we will assess how you have:

• Demonstrated strong attention to detail and focus on high-quality outcomes

• Took a methodical approach to resolving complex problems

• Respectfully challenged decisions or solutions when necessary

• Communicated effectively with both technical and non-technical stakeholders

• Proactively sought solutions to mitigate risk

• Raised risks and issues using the appropriate tools and processes

• Built strong working relationships and successfully resolved conflicts

• Led project meetings and actively contributed to workshops and events

Desirable experience

Some areas of experience are not essential but relevant to the role:

• UK government service standards

Salary

Senior consultant salary range: £56,001-£68,000

Frequently asked questions
You can find a variety of Java positions in London including Java Developer, Java Engineer, Backend Developer, Full Stack Developer with Java expertise, and Java Software Architect roles across different industries.
Many employers require candidates to have UK work authorization or a valid visa permitting employment. However, some companies sponsor visas for qualified Java professionals. Check each job listing for specific requirements.
Java job openings in London range from junior and entry-level positions to senior and lead roles. Job descriptions will specify the required years of experience, commonly from 1 year for junior roles up to 7+ years for senior positions.
Yes, several employers in London offer remote or hybrid working options for Java roles, reflecting the increasing demand for flexible work arrangements. Be sure to check the job details for remote work options.
To improve your chances, ensure your CV highlights strong Java skills and relevant project experience, gain knowledge of popular frameworks like Spring and Hibernate, prepare for technical interviews, and stay updated with the latest Java developments.