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Backend Engineer Jobs
Overview
Looking for top Backend Engineer jobs? Discover the latest backend developer opportunities on Haystack, your go-to IT job board. Whether you specialize in Java, Python, Node.js, or Ruby, find the perfect backend engineering role to advance your tech career today. Start browsing backend developer jobs now!
Java Software Developer
Adria Solutions Ltd
Cambridge
Hybrid
Mid
£40,000 - £50,000
RECENTLY POSTED
+1

We are looking for a mid-level Java Software Developer to join a small, collaborative team delivering a specialist SaaS platform to academic and commercial clients.

You will contribute to the ongoing development, enhancement, and support of a complex web-based management system. This is a hands-on role where you’ll work across the full stack, take ownership of features, and help improve system performance, stability, and scalability.

Key Responsibilities

Develop and maintain full-stack Java web applications

Contribute to the design and implementation of new features

Write clean, maintainable, and secure code

Create and optimise database schemas and complex SQL queries

Participate in Agile ceremonies and collaborative planning

Support releases, deployments, and CI/CD processes

Investigate and resolve bugs and technical issues

Work closely with internal stakeholders to understand requirements

About You

Essential:

Commercial experience in Java development

Experience with Spring (e.g. Spring MVC)

Strong JavaScript skills

Experience with relational databases and SQL

Understanding of Agile development practices

Good problem-solving and debugging skills

Strong communication skills and ability to work within a team

Desirable:

Experience with CI tools (e.g. Jenkins)

Exposure to cloud platforms (e.g. AWS)

Experience with PL/SQL or reporting tools

Benefits

Good Pension

33 day annual leave + BH

Bonus

This is an excellent opportunity for a developer looking to grow their technical skills within a supportive team while contributing to a robust and evolving SaaS product.

Interested? Please Click Apply Now

Java Software Developer

Software Engineer
Premier IT
London
Hybrid
Junior - Mid
£60,000 - £65,000
RECENTLY POSTED

Python / Machine Learning London – Hybrid Working £60,000-£65,000 I'm currently working with a global, hospitality tech-startup in London who are looking for a Software Engineer with experience in Python & Machine Learning to join their team on a hybrid basis! The company have been going since 2025, secured funding in November and have developed a niche technology aimed at serving the hospitality sector. They are looking to build an engineering team so this role takes on a founding engineer feel where you will be exposed to all areas of the SDLC from design to build to implementation. They are looking for experience mainly in Python but having skills in other languages or on the Frontend/Cloud would be really beneficial. They have also started utilising Machine Learning so having knowledge of AI, ML concepts would be hugely useful and grow into being a big part of the role They are based in Central London and are looking for people to work in the office 2 days a week. Technical Requirements 2-3 years development experience with Python. Have worked with additional languages – ideally Java or C++. Confident with Cloud technologies – AWS/Azure/GCP. Ideally have some Frontend experience but not essential – JavaScript/React. Have worked with AI/Machine Learning concepts – either at Uni or in role. Comfortable in a founding engineer setting where you’re responsible for wide range of areas. Happy in a start-up, fast paced environment where you have lots of room to grow. Enjoy working with high degree of autonomy within your role. Excellent communication skills and happy working with stakeholders. Salary: £60,000-£65,000. If this role sounds of interest, please apply and I can give you a call. Tim Stock (phone number removed) | (phone number removed) (url removed)

Java Software Developer
Adria Solutions
Cambridge
In office
Mid
£50,000
RECENTLY POSTED
+1

J ava Software Developer We are looking for a mid-level Java Software Developer to join a small, collaborative team delivering a specialist SaaS platform to academic and commercial clients.

You will contribute to the ongoing development, enhancement, and support of a complex web-based management system. This is a hands-on role where youll work across the full stack, take ownership of features, and help improve system performance, stability, and scalability.

Key Responsibilities Develop and maintain full-stack Java web applications

Contribute to the design and implementation of new features

Write clean, maintainable, and secure code

Create and optimise database schemas and complex SQL queries

Participate in Agile ceremonies and collaborative planning

Support releases, deployments, and CI/CD processes

Investigate and resolve bugs and technical issues

Work closely with internal stakeholders to understand requirements

About You Essential:

Commercial experience in Java development

Experience with Spring (e.g. Spring MVC)

Strong JavaScript skills

Experience with relational databases and SQL

Understanding of Agile development practices

Good problem-solving and debugging skills

Strong communication skills and ability to work within a team

Desirable: Experience with CI tools (e.g. Jenkins)

Exposure to cloud platforms (e.g. AWS)

Experience with PL/SQL or reporting tools

Benefits Good Pension

33 day annual leave + BH

Bonus

This is an excellent opportunity for a developer looking to grow their technical skills within a supportive team while contributing to a robust and evolving SaaS product.

Interested? Please Click Apply Now J ava Software Developer

TPBN1_UKTJ

Backend Software Engineer
Rebel Recruitment
Nottingham
Hybrid
Mid - Senior
£85,000
RECENTLY POSTED

Role: Backend Software Engineer - TypeScript | Node.js

Location: Nottinghamshire

Working Arrangement: Hybrid - 3 Days Onsite

Salary: Up to £85k + Serious Perks

You know the difference between just another backend role and one that actually moves the needle.

This is the latter.

Were hiring a Backend Software Engineer to help power a next-gen digital platform built on MACH principles (Microservices, API-first, Cloud-native, Headless). This isnt a side project. This platform supports 50+ websites and mobile apps used at scale across the UK and beyond.

If you thrive on clean architecture, scalable services, and high-performance APIs - keep reading.

What Youll Be Building

Youll join a fast-paced, delivery-focused engineering team shaping a cloud-native ecosystem running in Microsoft Azure.

Your day-to-day will include:

Designing and building scalable microservices using TypeScript & Node.js

Creating and maintaining GraphQL & REST APIs

Integrating with headless CMS, e-commerce platforms & payment providers

Translating business ideas into real, resilient architecture

Driving quality through CI/CD, automation & DevOps best practice

Championing maintainable, future-proof code

You wont just write tickets. Youll shape standards, influence architecture, and help evolve a platform that operates at serious scale.

What You Bring

Youve got strong commercial experience with:

TypeScript & Node.js

Microservices architecture

GraphQL / REST APIs

SQL or NoSQL databases

CI/CD and modern development lifecycle practices

Most importantly? You take ownership. You back yourself. You think beyond the brief.

The Perks (And theyre Not Small)

This isnt just code + salary. Youll get:

Up to £85k salary

Hybrid working (3 days onsite)

Peer recognition scheme where top performers can earn double pay for a month

Significant staff discounts across all group brands

Onsite, state-of-the-art gym with full showering facilities

Discounted gym memberships across multiple UK locations

24/7 wellbeing support including counselling & financial/legal advice

Clear career progression in a business that moves fast

Why This Role?

Youll be building software at scale, youll be working in a business that backs bold thinking, youll have the autonomy to make decisions, and youll be surrounded by engineers who care about doing things properly.

This isnt slow-moving enterprise.

Its ambitious, evolving, and unapologetically forward-thinking.

If youre a backend engineer who wants:

? Real ownership

? Modern architecture

? High impact

? Strong salary

? Tangible perks

Then lets talk.

Drop me a message or apply now - and lets see if youre ready to build something serious.

We welcome diverse applicants and are dedicated to treating all applicants with dignity and respect, regardless of background.

TPBN1_UKTJ

Lead Software Developer
Mexa Solutions
Manchester
Hybrid
Senior
£100,000
RECENTLY POSTED

Be the master of your own code building brand new SaaS products Lead Software Developer £95 100k basic Hybrid once a week in Manchester office and 4 days WFH We are looking for a minimum of 3 Lead Developers for this company Your new opportunity A key member of the Software Development team, youll technically lead projects from design to implementation. Youll still be hands on but will also be involved in the important, strategic conversations and will bring your creative thinking and ideas to the table, always looking at the bigger picture and whats next. To be successful in this role, youll be a high performing individual with expertise in both JavaScript and TypeScript full stack development. Your new organisation Youll be joining a global SaaS technology organisation that is the market leader in their sector. They are passionate about software and technology and are continually striving to be better and stay clear of their competitors. Although extremely well established with a huge customer base, they are continuing to grow and develop new products whilst embracing AI and its capabilities. What youll bring As a well established Lead Developer, youll have both a technical and commercial mindset when it comes to designing and building systems. Other skills and knowledge youll bring: Experience across all areas of full stack development and ideally in large scale SaaS platforms. Strong knowledge and experience in JavaScript and TypeScript. Other technical knowledge required includes NodeJS, Vue, SQL Server. Forward thinking approach to producing quality software development and utilising AI. Experience of working in mature CI/CD environments and following DevSecOps methodologies. Whats in it for you? This is an opportunity for someone passionate about technology who wants to join a fast-growing SaaS company. Salary for this role is £95,000 100,000 basic. Its a hybrid role with one day a week in the Manchester office and 4 days from home. Other benefits include 25 days holiday (+ your birthday and bank holidays), pension, EAP scheme and more. Whats next? To learn more about this opportunity, please click apply or send your CV to dominic . buck @ mexasolutions . com Ill be reviewing every CV that applies or lands in my inbox so please dont be put off by the volume of applications on this role. TPBN1\_UKTJ

Intapp Senior Developer
Ashurst
Multiple locations
Hybrid
Senior
Private salary
RECENTLY POSTED

The Opportunity

In this role, you’ll be part of a dynamic team focused on developing and maintaining the company’s Intapp suite of products. You’ll work closely with product owners, application developers, and other stakeholders to implement technical changes, build integrations and troubleshoot complex issues.

The Intapp Senior Developer will work on project specific items, enhancements and BAU tasks as a hands-on technical lead, supporting numerous improvements to enhance our firm’s Risk Business applications. The role involves supporting the firm’s Intapp Open product suite modules, such as Intake, Conflicts, Terms, Walls, and Mobile Time and also includes providing support for the Elite 3e system and SQL monitoring as well as other key Digital applications as required.

As an Intapp Senior Developer, you will collaborate with the rest of the Digital Practice Solutions team to support and develop these Intapp applications. This includes continuous improvement initiatives, project work, and day-to-day support tasks. You will play a crucial role in designing and implementing technical updates, improving workflows, and making recommendations to enhance operational effectiveness.

This is a full-time, permanent role that can be based in either our Glasgow office or our London office with hybrid working.

A full job description including a breakdown of responsibilities can be found attached to the role on our careers page.

We are interested in hearing from people who have:

  • Strong experience providing SME technical support on Intapp Open product suite - Intake, Conflicts, Walls & Terms, or similar business solutions in the legal sector.
  • Experienced Technical skillset on Intapp Walls - Activity Tracker, & Matter Team Manager with iManage Work 10 DMS & Elite 3E or similar management products will be considered.
  • Exposure to supporting multiple cloud, on premise hybrid applications with SSO & Integrations.
  • Ability to learn, support, and cover multiple existing and new legal on prem, hybrid & cloud applications as well as Intapp - Interaction CRM, iManage Work document management, Cherwell would be beneficial.
  • Strong infrastructure background and knowledge for incident troubleshooting, resolution and upgrades, primarily on Windows Operating systems.
  • Excellent written and verbal communication, stakeholder management & organisational skills.

What makes Ashurst a great place to work?

We offer you all the things you should expect from an international law firm, some of which include:

  • competitive remuneration with the flexibility to reward high performance;
  • flexible working;
  • corporate health plans;
  • a global professional development offering for all employees; and
  • an industry-leading programme that celebrates diversity and inclusion.

We are committed to delivering positive impacts to our communities through our Social Impact programme.

We aim to recruit, retain and promote the best people from the widest possible talent pools. We are committed to offering a safe and welcoming environment for all employees to ensure they are supported to work at their best.

Beyond this, what sets Ashurst apart from others is our global strength, our drive to innovate and collaborate, and our commitment to excellence. It is these values that make Ashurst a unique place to work.

Salesforce Developer
Foresters Financial
London
Hybrid
Mid - Senior
£65,000

Salesforce DeveloperUp to £65,000 per annumBromley, KentFull-TimePermanent
We have an opportunity for an experienced Salesforce Developer to join us.
Your day to day will include:

  • Gathering requirements from product backlog and design specs.
  • Translating business requirements into user friendly and maintainable solutions.
  • Ability to design and implement declarative and programmatic solutions to the highest standard.
  • Recording technical specifications and communicating effectively to non-technical stakeholders
  • Continuous learning and development

Working hours are 40 hours a week Monday to Friday. Start times can vary from 7.30am to 9.30am. After a successful training period there is flexibility to work from home up to 2 days a week.
What we require

  • Demonstrable experience as a Salesforce developer.
  • Salesforce Certified Administrator and Platform App Builder. Salesforce Certified Developer 1 would be an advantage.
  • Extensive Configuration experience (Workflow, Process Builder, Flows etc.).
  • Experience with customization on the Salesforce platform using Apex, SOQL, SOSL, Data Loader and other declarative tools.
  • Experience of Salesforce Sales or Service Cloud.
  • Knowledge of Salesforce Marketing Cloud would be an advantage.
  • Passionate to learn newer features within the Salesforce platform through Trailhead and Salesforce certifications.

What we offer you

  • Competitive Salary Up to£65,000 per annum, based on experience and skills
  • Generous Leave25 days annual holidayplusbank holidaysto recharge and relax
  • Life Assurance Coverage of4x your pensionable earningsfor peace of mind
  • Pension SchemeContributory planto help you invest in your future
  • Day of Caring 1 paid day per yearto support a charity of your choice
  • Wellbeing Support Access to ourEmployee Assistance Programmefor confidential help and guidance

About us
Foresters Financial is not your typical financial services provider. Those who join our purpose-driven organisation enjoy a culture of collaboration, creativity, and mutual respect and are challenged to do their best to make a difference every day. We help everyday families achieve their financial goals and make a lasting difference in their lives and communities.
What we do
We help everyday families achieve their financial goals and make a lasting difference in their lives and communities. We will continue to do this by employing enthusiastic and talented Financial Advisers working across the country and equally talented people to be based at our Head Office in Bromley.

Automated Intelligence SME
Experis
Basingstoke
In office
Mid - Senior
£600/day
+2

Clearance Required: SC

An opportunity is available for an experienced AI Subject Matter Expert to support the implementation and delivery of Automated Intelligence solutions within secure environments.

You will work across technical and business teams to design, develop and deploy AI enabled automation capabilities that integrate into existing enterprise systems.

The Role

You will support the delivery of AI driven automation initiatives across secure programmes. The position requires strong technical capability combined with stakeholder engagement and risk awareness.

Key Responsibilities

  • Design, build and deploy automation solutions integrating AI and machine learning models into existing systems and workflows.
  • Analyse business processes with stakeholders to identify automation opportunities and define clear requirements.
  • Develop automation scripts and build data pipelines covering ingestion, preprocessing and feature engineering.
  • Conduct testing, troubleshooting and performance monitoring to maintain system accuracy and reliability.
  • Collaborate with data scientists, software engineers and IT teams to ensure seamless deployment.
  • Produce clear technical documentation and performance reporting.
  • Support contract discussions, stakeholder engagement and business risk considerations where required.

Technical Skills Required

  • Proficiency in programming languages such as Python, Java, C# or R.
  • Experience with machine learning frameworks including TensorFlow, PyTorch or Scikit-learn.
  • Familiarity with cloud platforms such as AWS, Azure or Google Cloud and associated MLOps practices.
  • Experience with automation and orchestration tooling such as UiPath, Airflow or Kubeflow.

Experience and Capability

  • Strong experience delivering AI or automation solutions within enterprise environments.
  • Ability to work with cross functional teams and translate technical solutions into business value.
  • Experience operating within controlled or regulated environments.
  • Strong written and verbal communication skills.
  • Experience supporting stakeholder engagement and business risk management.

This role suits a technically credible AI professional who can design and implement automation solutions while engaging effectively across secure and regulated programmes.

To apply, please send your CV by pressing the apply button

RPA Consultant
ECS Resource Group Ltd
London
Fully remote
Mid - Senior
£500/day - £700/day
TECH-AGNOSTIC ROLE

Contract Inside IR35 Remote 1-2 Months

We are seeking an experienced RPA Consultant to review, optimise and support the migration of an existing automation solution into a cloud-based environment.

The current estate (3 production workflows) requires technical assessment, remediation and structured migration aligned to best practice.

Key Responsibilities

  • Conduct a health check of existing RPA workflows (design quality, error handling, logging, security, environment configuration).
  • Produce and implement a prioritised improvement plan.
  • Review and validate cloud architecture and deployment approach.
  • Support migration of unattended RPA processes to a cloud VM environment.
  • Perform end-to-end testing to ensure stability and performance.
  • Provide documentation and structured knowledge transfer to internal stakeholders.

Required Experience

  • Strong experience delivering RPA / intelligent automation solutions (e.g. Power Automate, UiPath, Blue Prism or similar).
  • Experience migrating automation solutions from on-premise to cloud environments.
  • Solid understanding of cloud infrastructure, identity management and security best practice.
  • Proven experience conducting RPA health checks, remediation and optimisation.
  • Comfortable engaging with business stakeholders and translating technical improvements into operational outcomes.

Contract Details:

  • Inside IR35
  • Remote
  • Duration: 1-2 months

ECS Resource Group are an Equal Opportunity Employer, for more information please click the following link: (url removed) In accordance with the Equality Act 2010, if you require an alternative form of application please click the following link: Flexible Application Process - (url removed)/work/flexible-application-process

Salesforce Developer
Charles Simon Associates Ltd
London
Fully remote
Mid - Senior
£65,000 - £70,000

Salesforce Developer (Marketing Cloud, SFMC, Apex, SQL, CRM) Fully Remote Permanent

Charles Simon Associates are currently recruiting for a Salesforce Developer on a permanent basis for one of our fast-growing clients based in Manchester.

This Salesforce Developer will play a key role in implementing Salesforce Marketing Cloud (SFMC) before continuing development across the wider Salesforce platform including CRM, integrations and ongoing platform enhancements.

This is not a marketing-only role. The business requires a strong Salesforce Developer with Marketing Cloud experience who can support both the marketing implementation and long-term Salesforce platform development.

Location: Fully Remote
Salary: £65,000 £70,000 per annum D.O.E

Skills/Requirements for the Salesforce Developer:

  • Extensive experience as a Salesforce Developer
  • Strong Apex development experience
  • Experience with Salesforce Marketing Cloud / SFMC
  • Strong SQL skills
  • Experience building integrations using Salesforce APIs
  • Experience with Lightning Web Components (LWC)
  • Strong understanding of Salesforce CRM data models
  • Stakeholder communication skills

The Salesforce Developer will be responsible for:

  • Supporting in the creation of the Salesforce Marketing Cloud platform from scratch
  • Developing marketing automation solutions (email, journeys, SMS, push)
  • Building integrations between Salesforce CRM and Marketing Cloud
  • Supporting ongoing Salesforce platform development
  • Developing Lightning Web Components to extend Salesforce functionality
  • Working with internal stakeholders on requirements
  • Supporting future enhancements across the Salesforce ecosystem

Start date is ASAP for the Salesforce Developer.

Please send an up-to-date CV to be considered for the Salesforce Developer

Salesforce Developer (Marketing Cloud, SFMC, Apex, SQL, CRM) Fully Remote Permanent

Salesforce Developer
Charles Simon Associates Ltd
Manchester
Remote or hybrid
Mid - Senior
£65,000 - £70,000

Salesforce Developer (Marketing Cloud, SFMC, Apex, SQL, CRM) Manchester/Hybrid Permanent

Charles Simon Associates are currently recruiting for a Salesforce Developer on a permanent basis for one of our fast-growing clients based in Manchester.

This Salesforce Developer role can be Manchester-based on a hybrid basis or fully remote within the UK for the right candidate. The client is looking for the best Salesforce Developer available and is open to remote options.

This Salesforce Developer will play a key role in implementing Salesforce Marketing Cloud (SFMC) before continuing development across the wider Salesforce platform including CRM, integrations and ongoing platform enhancements.

This is not a marketing-only role. The business requires a strong Salesforce Developer with Marketing Cloud experience who can support both the marketing implementation and long-term Salesforce platform development.

Location: Manchester/Hybrid
Salary: £65,000 £70,000 per annum D.O.E

Skills/Requirements for the Salesforce Developer:

  • Extensive experience as a Salesforce Developer
  • Strong Apex development experience
  • Experience with Salesforce Marketing Cloud / SFMC
  • Strong SQL skills
  • Experience building integrations using Salesforce APIs
  • Experience with Lightning Web Components (LWC)
  • Strong understanding of Salesforce CRM data models
  • Stakeholder communication skills

The Salesforce Developer will be responsible for:

  • Supporting in the creation of the Salesforce Marketing Cloud platform from scratch
  • Developing marketing automation solutions (email, journeys, SMS, push)
  • Building integrations between Salesforce CRM and Marketing Cloud
  • Supporting ongoing Salesforce platform development
  • Developing Lightning Web Components to extend Salesforce functionality
  • Working with internal stakeholders on requirements
  • Supporting future enhancements across the Salesforce ecosystem

Start date is ASAP for the Salesforce Developer.

Please send an up-to-date CV to be considered for the Salesforce Developer

Salesforce Developer (Marketing Cloud, SFMC, Apex, SQL, CRM) Manchester/Hybrid Permanent

Senior (Full Stack) Java Developer
Adecco
Manchester
Hybrid
Senior
£60,000 - £80,000

Senior Software Engineer (Java) - Manchester (Hybrid, 2 days onsite)

Salary: 60,000- 80,000 (DOE)

We’re seeking Senior Software Engineers to join a product-led, AI-enabled engineering organisation in Manchester (Spinningfields). This is a hybrid role with 2 days per week onsite, focused on end-to-end ownership of software delivery - from writing code to testing, deploying, monitoring, and maintaining production systems, including DevOps responsibilities.

About You Senior Software Engineer (Java)

  • Senior-level experience with Java, Spring Boot, AWS, Serverless/Lambda, Node, and TypeScript
  • Experience in full SDLC ownership: design, code, test, deploy, monitor, and maintain
  • Product-focused mindset, collaborative, and passionate about technology
  • Already Senior or acting as Senior in a Mid-level role

What You’ll Do Senior Software Engineer (Java)

  • Deliver features and drive technical strategy across your team
  • Collaborate with product managers, designers, and engineers
  • Write clean, maintainable code using Java, TypeScript, Node, AWS, and related technologies
  • Ensure production systems are secure, performant, and maintained
  • Mentor team members and champion best practices (TDD, pairing, CI/CD)
  • Leverage AI tools like Copilot and ChatGPT to improve productivity

Why Join for Senior Software Engineer (Java)

  • Hybrid working: 2 days in-office, rest remote
  • Collaborative, inclusive culture with hack days, socials, and innovation events
  • Career growth and learning opportunities across multiple squads
  • Competitive benefits: 27-30 days holiday + bank holidays, bonus, pension, enhanced parental leave, mental health and financial wellbeing support
  • Hiring Now: Immediate need for 3 engineers, with a 4th role also available.

How to apply for Senior Software Engineer (Java)

If you’re a Senior Software Engineer with a product mindset, passionate about modern engineering and AI-enabled delivery, we want to hear from you. Please email your CV to (url removed)

C# .NET Developer
Adecco
London
Hybrid
Mid - Senior
£600/day - £650/day

Contract
Daily Rate: 600 - 650 (inside IR35 via umbrella)
Contract Length: 6 months initially
Location: Hybrid Working - 2/3 days onsite per week

Our client, a leading organisation in the tech sector, is seeking a talented C# .NET Developer to join their dynamic team on a contract basis. If you are passionate about software development and are eager to tackle exciting challenges, we want to hear from you!

Key Responsibilities:

As a C# .NET Developer, you will:

Understand business requirements and design applications that meet those needs.
Engage in business data analysis to inform application design and development.
programme in Visual C#.NET while utilising both Oracle and SQL Server databases.
Conduct unit testing and ensure quality assurance (QA) for all developed applications.
Implement solutions in production and disaster recovery environments, providing support to users.
Prepare and maintain technical documentation related to your projects.

In addition to new application development, your role will also encompass supporting existing C# and .NET applications. You will work closely with the IT department to provide general IT support and maintain the environments where applications are hosted.

Additional Responsibilities:

Define database objects required for various systems and interact with SQL and Oracle Database Administrators in both London and New York.
Provide scripts for database inquiry languages (T-SQL for SQL Server and PL/SQL for Oracle) to enable data analysis based on business requirements.
Support the setup of system distribution methods for Citrix and application servers for both web and Windows applications.
Troubleshoot systems during failures and implement solutions, including code fixes and SQL scripting, while checking Windows Servers and databases.
Follow the Development Team’s Change Management Control procedures to secure proper approvals prior to production updates.
Update versions of MS .NET Framework and MS Visual .NET platform as needed to ensure existing systems run smoothly in the production environment.
Liaise with relevant support teams such as Technical Support, Network and Infrastructure, and Database Administrators when business users encounter system issues.
Assess the impact of data processing loads on SQL and Oracle databases and propose alternative solutions when necessary.
Actively assist in rolling out changes through coordination with the Release team and maintain a change history of applications.
Communicate effectively with primary support Helpdesk staff in both London and New York to provide necessary system support.
Be available for occasional out-of-office hours support during weekdays and weekends.

If you are a proactive C# .NET Developer looking for a challenging opportunity to showcase your skills, please apply now with your CV and a brief cover letter detailing your relevant experience.

Join us in shaping the future of technology!

Adecco is a disability-confident employer. It is important to us that we run an inclusive and accessible recruitment process to support candidates of all backgrounds and all abilities to apply. Adecco is committed to building a supportive environment for you to explore the next steps in your career. If you require reasonable adjustments at any stage, please let us know and we will be happy to support you.

Oracle DBA
Adecco
Wokingham
Hybrid
Mid - Senior
£500/day - £600/day

Oracle Database Administrator (DBA)

Contract
Daily Rate: Up to 600 (Inside IR35 via umbrella)
Contract Length: 6 months initially
Location: Sindlesham, Wokingham (1 day per week onsite is required)

Overview:

Our client is seeking an experienced Oracle Database Administrator to provide essential support for Oracle and SQL Server databases within the estate. This role is vital in maintaining the systems that ensure operational continuity in the UK. As part of a dedicated DBA team, the successful candidate will be instrumental in managing an extensive Oracle database estate, ranging from legacy systems to modern deployments.

Key Responsibilities:

Provide 24x7 database management and administration expertise in high availability environments.
Conduct proactive maintenance and monitoring of Oracle databases.
utilise change, problem, incident, and release management tools effectively.
Liaise with third-party service centres as necessary.
Perform technical analyses and engage with other technical leads to adopt best practises.
Assist in application/system transitions to ensure standby and site failover capabilities.
Offer technical assistance and mentoring to junior resources.
Monitor and respond to incidents and requests using workflow management tools.

Knowledge and Qualifications Required:

Degree or higher educational qualification, coupled with significant IT experience.
ITIL certification (minimum foundation level; higher preferred).
Industry-recognised technical certification in database administration.

Experience Required:

Extensive experience in Oracle 12-19C Database and RAC Administration.
Proficient in Oracle ASM, RMAN, GoldenGate, and Enterprise Manager.
Basic UNIX administration and KSH shell scripting skills.
Familiarity with OpenVMS is a plus.
Strong verbal and written communication skills, with experience in writing and reviewing technical documentation.

Desired Experience:

Proven customer-facing experience in an IT service role.
Methodical and positive approach to problem-solving.
Experience in supporting business-critical, real-time systems.
Capability to work independently or as part of a motivated team.
Previous involvement in 2nd line Out Of Hours support and on-site attendance as required.

Working Environment:

Hybrid working model: 1 day per week onsite.
Standard hours: 9 am - 5 pm.

If you are an Oracle DBA ready to make a significant impact in a critical environment, we invite you to apply. Please submit your CV and a brief cover letter outlining your relevant experience. Our client looks forward to welcoming a new member to their team!

Note: Only candidates who meet the eligibility requirements will be contacted for an interview.

Adecco is a disability-confident employer. It is important to us that we run an inclusive and accessible recruitment process to support candidates of all backgrounds and all abilities to apply. Adecco is committed to building a supportive environment for you to explore the next steps in your career. If you require reasonable adjustments at any stage, please let us know and we will be happy to support you.

Software Developer
Anonymous
Oxford
In office
Mid - Senior
£70,000 - £75,000
+3

Software Engineer C# development with a a degree in Computer Science, Software Engineering, Electrical/Automation Engineering, Mechatronics, or a related field with
focus on hardware-automation or control systems (or equivalent).
Desirable a bachelor s degree in Automation or Manufacturing engineering

Software Engineers C# will be designing robust, multithreaded machine control software for deterministic, high-availability industrial systems.

Software Engineers will contribute to the software architecture by focusing on key areas such as reliability, data logging, predictive maintenance capabilities, and
cybersecurity for industrial environments. Software Engineers C# will have some of the following software development experience.

Expert proficiency in C# for application development, specifically using
the .NET Framework/Core (for stability and modern application
development) and ideally WPF (for complex, responsive UIs).
Demonstrable experience with real-time or near real-time operating
systems (RTOS) concepts and implementation, or strong experience
with real-time extensions in Windows or Linux.
Experience with Python for data processing, test automation, or highlevel
control scripts.
Familiarity with modern software development practices, including
Design Patterns (e.g., MVVM, Factory) and Clean Architecture
principles.
Industrial Control & Communication
Proven experience in programming and configuring industrial PCs (IPC)
and motion controllers (e.g., from Beckhoff, Delta Tau, Aerotech, Galil).
In-depth knowledge and hands-on experience with Industrial Ethernet
protocols such as EtherCAT, PROFINET, or SERCOS III for high-speed,
deterministic control loops.
Practical experience integrating industrial communication standards
like OPC UA for data exchange, telemetry, and SCADA/MES integration.

Knowledge of Machine Vision libraries (e.g., Halcon, OpenCV) and
practical experience implementing vision systems for alignment, quality
control (QC), and feature recognition.

Proficiency with Git for version control and collaborative development.
Experience setting up and maintaining CI/CD pipelines (e.g., Azure
DevOps, GitLab CI) for industrial software deployment.
Familiarity with data logging, time-series databases (e.g., InfluxDB), or
SQL/NoSQL databases for storing and analyzing machine operational data

Java Software Developer
Adria Solutions Ltd
Cambridgeshire
In office
Mid
£40,000 - £50,000
+1

Java Software Developer

We are looking for a mid-level Java Software Developer to join a small, collaborative team delivering a specialist SaaS platform to academic and commercial clients.

You will contribute to the ongoing development, enhancement, and support of a complex web-based management system. This is a hands-on role where you ll work across the full stack, take ownership of features, and help improve system performance, stability, and scalability.

Key Responsibilities

  • Develop and maintain full-stack Java web applications
  • Contribute to the design and implementation of new features
  • Write clean, maintainable, and secure code
  • Create and optimise database schemas and complex SQL queries
  • Participate in Agile ceremonies and collaborative planning
  • Support releases, deployments, and CI/CD processes
  • Investigate and resolve bugs and technical issues
  • Work closely with internal stakeholders to understand requirements

About You

Essential:

  • Commercial experience in Java development
  • Experience with Spring (e.g. Spring MVC)
  • Strong JavaScript skills
  • Experience with relational databases and SQL
  • Understanding of Agile development practices
  • Good problem-solving and debugging skills
  • Strong communication skills and ability to work within a team

Desirable:

  • Experience with CI tools (e.g. Jenkins)
  • Exposure to cloud platforms (e.g. AWS)
  • Experience with PL/SQL or reporting tools

Benefits

  • Good Pension
  • 33 day annual leave + BH
  • Bonus

This is an excellent opportunity for a developer looking to grow their technical skills within a supportive team while contributing to a robust and evolving SaaS product.

Interested? Please Click Apply Now Java Software Developer

Founding Fullstack Engineer
SR2
London
Hybrid
Senior - Leader
£150,000

Founding Full-Stack Engineer (Greenfield Digital Banking) Central London 4 days onsite Full-time 90,000 - 100,000 + 15-20% bonus

We’re working with a highly successful, family-owned international private bank to hire a Founding Full-Stack Engineer for a brand new, greenfield digital banking build based in Central London.

This is a rare opportunity to join right at the beginning of a newly formed product team and help build a next-generation digital banking experience from first principles deliberately outside of legacy systems. The environment is genuinely “startup-style” (small team, high ownership, fast delivery), but backed by serious scale, long-term investment, and a strong focus on quality, stability and client trust.

The role As one of the first engineering hires, you’ll play a key part in shaping:

  • the technical foundations
  • engineering standards
  • architecture and system design
  • how the team builds and ships product

You’ll work closely with Product and Design, delivering secure, high-quality digital experiences for high-value clients and complex workflows.

What you’ll do

  • Design, build and maintain end-to-end features across frontend and backend
  • Architect scalable, secure and maintainable systems for private banking / institutional use cases
  • Own key technical decisions, balancing delivery speed with long-term quality
  • Build APIs, services, data models and modern web experiences
  • Establish high standards of engineering quality through testing, reviews and automation
  • Contribute to platform foundations, shared components and internal tooling
  • Embed security, performance and resilience best practices into everything you ship
  • Help define engineering standards and ways of working as the team grows

What we’re looking for

  • 8-12+ years’ experience as a full-stack or senior engineer owning production systems
  • Strong experience building modern web applications across frontend and backend
  • Frontend expertise with modern frameworks (React, TypeScript or similar)
  • Strong backend experience (Node.js, Java, Python or similar)
  • Solid understanding of APIs, architecture, databases and cloud infrastructure
  • Exposure to CI/CD and modern DevOps practices (containers, Kubernetes, automation)
  • Comfortable being a technical owner in open-ended / ambiguous environments
  • A builder mindset - pragmatic, delivery-focused, and quality-led
  • Experience in financial services / fintech / regulated environments is beneficial but not essential
  • Strong awareness of security, privacy and compliance considerations is highly valued

Why this opportunity stands out

  • Genuine greenfield build with meaningful ownership from day one
  • Founding hire in a small, high-calibre team
  • Startup-style delivery with the backing of a global financial institution
  • Direct access to decision-makers and influence over product direction
  • Quality-first culture focused on trust, stability and long-term value
  • Competitive salary + strong bonus + benefits
C# .NET Software Developer
GMSL
Cambridge
Hybrid
Mid - Senior
Private salary

We have a great opportunity for a C# .NET Software Developer to join our fantastic software development team based in Cambridge. This is an ideal role for someone who wants to join a friendly, small and highly technical team where you can have a real impact.

The role

You will be embedded as a full-stack developer in one of our small agile development teams. You will collaborate alongside product owners, testers and other developers to develop features for our power-scheduling software product.

Our view of agile software development is inspired by eXtreme Programming rather than Scrum. We focus more on the technical practices that enable agility, such as TDD, Pair Programming, SOLID, Simple Design etc. but we do find some of the rituals useful, such as Daily Stand-ups and Retrospectives.

We are looking for someone who:

• You will have a minimum of five years development experience using C# & .NET in a commercial environment.
• Experience in enterprise product development would be particularly relevant to our business.
• You will be comfortable working in an agile environment. Experience of any eXtreme Programming practices that are key to being agile, such as TDD, Pair Programming, SOLID, Simple Design would also be beneficial.

Your skills

• You will need to be great at thinking logically, but also laterally.
• You make pragmatic choices when implementing changes.
• You must be able to communicate your thoughts well.
• You should enjoy collaborating with others and relish solving challenging problems.
• You actively listen and provide thoughtful solutions

We are keen to hear from individuals that meet some (or all!) of the following:

ASP. NET Core
• Experience designing and consuming RESTful APIs according to best practices
• Knowledge of hosting environment configuration, authentication & certificate management
• Thorough understanding of MVC patterns such as MVVM
• Good working knowledge of JS, CSS + HTML

C#
• Architecting modern solutions to replace existing functionality
• Refactoring a complex codebase according to SOLID principles & design patterns

SQL Server
• Experience investigating performance issues including index tuning

CI/CD
• Implementing modern CI/CD pipelines in place of legacy build & deployment processes

Our benefits include:

• Annual discretionary bonus scheme
• Company pension scheme (6% employer contribution)
• 25 days holiday
• Private health care
• Flexible working hours and remote working
• Casual dress and a relaxed environment
• Employee assistance program
• Loyal service award
• Cycle to Work scheme
• Fresh fruit and great coffee
• Free access to Cambridge University Botanic Gardens
• Monthly team pub lunches

GMSL have a responsibility to ensure that all employees are eligible to live and work in the UK, proof of right to work in the UK will be requested prior to employment.

About GMSL

GMSL is the market-leading provider of 24/7 energy portfolio management services and software in Europe and plays a vital role in the energy business. We have unparalleled expertise in the industry, built up over 25 years of operating in energy markets throughout Europe.

Our software is used by some of the largest energy companies in the world and is developed using our unique operations experience, giving us clear insight into our customers needs.

Recruitment Agencies

We are not currently accepting recruitment agency applications. We ll be in touch if we need you to help us. Thanks for your understanding.

Location: Cambridge/Hybrid
Salary: Salary will be reflective of your level of experience.
Contract Type: Permanent
Hours: Full time (37.5 hours p/w) or part-time (30 hours p/w)

You may also have experience in the following: .NET Developer, C# Developer, Full Stack .NET Engineer, ASP. NET Core Developer, Backend Developer, Software Engineer (C#/.NET), Application Developer, API Developer, Enterprise Software Developer.

REF-(Apply online only)

Junior PHP Developer
Get-Recruited (UK) Ltd
Yorkshire
Hybrid
Junior
£38,000 - £42,000

JUNIOR PHP DEVELOPER - PHP

BARNSLEY - HYBRID (ONE DAY A WEEK IN OFFICE)

UP TO 42,000 + BENEFITS

THE OPPORTUNITY:

You’ll be joining as an experienced developer, working on live systems, handling sensitive data, maintaining reliable workflows, and making sure the software does what users need it to do without getting in the way.

This isn’t a role where you just pick up tickets and move on. You’ll be expected to think about how the system hangs together, improve existing code, and help keep things stable as changes are made.

THE ROLE:

  • Building and maintaining PHP applications used in production.
  • Adding and improving JavaScript functionality to support straightforward user journeys.
  • Designing and maintaining MariaDB databases, with attention to performance and data accuracy.
  • Making sure applications are secure, reliable and auditable.
  • Investigating and fixing issues in live environments with minimal disruption.
  • Writing clear, readable code that others can easily work with.
  • Taking part in code reviews and technical discussions.
  • Offering support and guidance to other developers when needed.

THE PERSON:

  • Must have solid experience as a PHP Developer.
  • Strong JavaScript skills, including working with APIs.
  • Some experience working with cloud-hosted environments (e.g. AWS), or the ability to pick this up quickly.
  • Experience working on live systems with real users and real data.
  • A sensible approach to security and data protection.
  • Able to work independently and make sound technical decisions.
  • Comfortable working with older or inherited codebases.
  • Experience working in regulated or compliance-driven environments.

By sending an application or applying for a job, you consent to your personal data being processed and stored by Get Recruited (UK) Ltd in accordance with our Cookie & Privacy Policy (available in the footer on our website). Get Recruited (UK) Ltd acts as an employment agency for permanent recruitment and as an employment business for the supply of temporary workers. We are an equal opportunities employer and we never charge candidates a fee for our services.

T24 Techno-Functional Consultant
FINCROFT
London
Hybrid
Mid - Senior
Private salary

T24 / Temenos / Transact / Techno Functional / Business Analyst / BA / Developer / Engineer / Support / Core Banking / Bank / Financial Services / Finance / Building Society / FinTech / London / START ASAP / Permanent

Job Title: T24 Techno-Functional Consultant (Temenos Transact)
Location: Central London (Hybrid)
Type: Permanent
Salary: Competitive + Benefits (DOE)
Overview
We are working with a leading banking client seeking an experienced T24 Techno-Functional Consultant to join their core banking technology team. This hybrid role combines business analysis and hands-on development within the Temenos Transact (T24) platform, supporting system enhancements, integrations, and ongoing optimisation of a live banking environment.

Key Responsibilities

  • Gather and translate business requirements into functional and technical solutions
  • Design and develop changes within T24 (TAFJ / jBASE / InfoBasic / Java)
  • Configure modules including Payments and Arrangement Architecture (AA)
  • Support integrations, interfaces, and system upgrades
  • Provide production support and troubleshooting as required

Key Requirements

  • Strong hands-on experience with Temenos Transact (T24)
  • Experience with TAFJ, jBASE/PickBasic, and Temenos tools
  • Good understanding of core banking processes and integrations (IF / APIs)
  • Ability to work across business and technical stakeholders

What’s on Offer

  • Permanent role with an established banking organisation
  • Hybrid working in Central London
  • Competitive salary and benefits
  • Exposure to strategic core banking initiatives

Apply now with an updated CV to learn more about this opportunity.

Net Developer
Cartisian Recruitment
Farnborough
In office
Mid
£50,000 - £70,000

Job Title: .NET Developer
Location: London, Hampshire, Surrey, Greater London
Salary: 50,000 - 70,000

We are seeking a talented .NET Core Developer to join our dynamic development team. You’ll play a key role in designing and implementing core modules for our innovative software solutions. Working closely with the wider team, you’ll have individual responsibility for specific modules, ensuring they meet performance, scalability, and quality standards. This is an exciting opportunity to work on cutting-edge technologies and contribute to impactful projects.

Key Responsibilities

  • Design, develop, and maintain application modules, including the Database Module, API Module, Engine, and Logic.
  • Build and enhance REST APIs to ensure robust and efficient communication between application components.
  • Develop scalable solutions using .NET Core and C#, adhering to best practices and coding standards.
  • Implement and optimize data storage solutions using Entity Framework and SQLite.
  • Collaborate with team members to integrate individual modules into the larger system architecture.
  • Conduct code reviews, write unit tests, and debug to ensure quality and reliability.
  • Document technical designs and maintain clear communication with the team and stakeholders.

Skills and Experience

  • Proficiency in .NET Core and C#, with a strong understanding of object-oriented programming principles.
  • Experience designing and building REST APIs with a focus on performance, security, and scalability.
  • Hands-on experience with Entity Framework and integrating SQLite for data storage and retrieval.
  • Strong problem-solving skills and the ability to develop and debug complex logic.
  • Familiarity with version control systems (e.g., Git) and CI/CD pipelines.
  • Excellent communication skills and the ability to work collaboratively in a team environment.

Due to our high vacancy response rates unfortunately, we are not able to reply to all applicants. If you have not had feedback from our consultants within 14 days, please accept that your application has not been successful.

Cartisian Technical Recruitment are a specialist recruitment agency sourcing engineers for Automation, Scientific Technologies, Automotive, General Engineering & Manufacturing sectors.

Frequently asked questions
Haystack features a wide range of Backend Engineer positions, including roles in startups, mid-sized companies, and large enterprises, covering various industries such as finance, healthcare, e-commerce, and more.
Common programming languages for Backend Engineer roles on Haystack include Java, Python, Ruby, Go, Node.js, and C#. Job postings typically specify the preferred languages and frameworks.
Yes, Haystack allows you to filter Backend Engineer job listings based on remote, hybrid, or on-site work options to help you find roles that match your work location preferences.
Absolutely. Haystack includes Backend Engineer job listings for various experience levels, including entry-level, mid-level, and senior positions, making it easier for candidates at all stages to find suitable roles.
To apply for Backend Engineer jobs, simply create an account on Haystack, upload your resume, and submit applications directly through the platform. Some listings may also redirect you to the employer's application portal.