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Discover top AWS jobs in London with Haystack – your go-to IT job board for cloud computing careers. Explore the latest opportunities for AWS developers, architects, and engineers in the heart of the UK’s tech hub. Start your cloud career journey today with Haystack and land your dream AWS role in London!
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Network Design Specialist
Hays Specialist Recruitment
Multiple locations
Hybrid
Mid
£400/day - £440/day
RECENTLY POSTED
aws
itil
sql
Hays are now looking for a Network Design Specialist - OSS Data Integration for one of our local clients
Join a team delivering data-driven solutions to support RAN coverage, resilience, and change management:
Circa £400 - £440 p/d Inside IR35
1-2 days a week onsite
Location is Bristol
Key Responsibilities:
Design and deliver data feeds, automation, and reporting for RAN change and release management.
Collaborate with OSS design authorities to meet ESN contract requirements.
Enhance RAN tools and visualisation platforms with resilience and location-based insights.
Document data flows and ensure GDPR/security compliance.
Guide virtual teams and support technical delivery across the business and supplier partners.
Required Experience:
OSS design with ITIL, Change & Release Management.
Strong knowledge of RAN, telecom protocols (2G-5G), and resilience planning.
Proficiency in SQL, Python/Shell, and data integration (ETL/API).
Familiarity with cloud platforms (AWS, Azure, GCP).
BPSS clearance (minimum requirement for ESN work).
If you have the above experience in you’re interested in this role, click ‘apply now’ to forward an up-to-date copy of your CV, or please send a copy of your CV
Hays Specialist Recruitment Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the T&C’s, Privacy Policy and Disclaimers which can be found on our website.
Python Software Engineer AWS Java Data Finance London
Joseph Harry Ltd
Multiple locations
Hybrid
Mid
£120k - £150k
RECENTLY POSTED
aws
python
java
javascript
typescript
grpc
+5
Senior Python Software Engineer (Senior Architecture Programmer Developer Python Java Software Engineer Data Enterprise Engineering Developer Programmer AWS Python Athena Glue Airflow Ignite JavaScript Agile Pandas NumPy SciPy Spark Dremio Snowflake Apache Iceburg Iceberg Arrow DBT gRPC protobuf TypeScript Finance Trading Front Office Investment Banking Asset Manager Financial Services FX Fixed Income Equities Commodities Derivatives Hedge Fund) required by my asset management client in London.
You MUST have the following:
Advanced ability as a Senior Python Software Engineer/Technical Lead/Solutions Architect/Principal Engineer
Good design and architecture ability
Java
Three or more of the following:
Iceberg
Dremio
DBT
Arrow
Snowflake
Glue
Athena
Airflow
Agile
The following is DESIRABLE, not essential:
Trading, Front Office finance
Spark
Buy-side asset management (hedge fund, asset manager, investment management)
Role: Senior Python Software Engineer (Senior Architecture Programmer Developer Python Java Software Engineer Data Enterprise Engineering Developer Programmer AWS Python Athena Glue Airflow Ignite JavaScript Agile Pandas NumPy SciPy Spark Dremio Snowflake Apache Iceburg Iceberg Arrow DBT gRPC protobuf TypeScript Finance Trading Front Office Investment Banking Asset Manager Financial Services FX Fixed Income Equities Commodities Derivatives Hedge Fund Snowflake) required by my asset management client in London. You will join a relatively new department that is responsible for the data used across the Front Office. The data is sourced from a variety of external vendors and internal departments and held in an AWS data lake, although this is being migrated to a data mesh architecture. They are working heavily with Python, Java and AWS. If you have any experience in Iceberg, Dremio, DBT, Arrow, Spark, Snowflake, Glue, Athena, Airflow or related tools, this would also be very advantageous.
You will join a team of 5 that are responsible for pricing data for the Front Office. This is a senior role in the team and will demand a strong ability in design and architecture. If you come in at the right level, you could be the deputy for the team manager.
They have a very flexible hybrid working set up.
Salary: £120-150k + 15% Bonus + 10% Pension
Senior Data Engineer Kafka Python AWS
Client Server Ltd.
London
Hybrid
Senior
£70k - £80k
RECENTLY POSTED
aws
kafka
python
mysql
postgresql
java
+3
Senior Data Engineer (Kafka Python AWS) London / WFH to £80k
Are you a data technologist with fluent Python coding skills who enjoys working with and continually learning new technologies?
You could be progressing your career in a senior, hands-on role at a “Tech for Good” company that is enabling life changing education to be accessed by millions of students across the globe (currently 22 countries and growing).
As a Data Engineer you’ll help to design, build and operate the data pipelines and data services that power learning experiences. Collaborating with software engineers, data scientists and product managers, you will grow your expertise while contributing to systems that need to process 25-35,000 messages per second to support the learning experiences as well as reporting and analytics requirements across the business as it scales to 10’s of millions of students.
Typically you’ll be developing and maintaining reliable data pipelines for both real-time streaming and batch workloads, assisting with the evolution of the Lakehouse, collaborating with analytics, product and machine learning teams to make data accessible, trust worthy and reusable.
You’ll be encouraged to contribute ideas and investigate new and emerging technologies.
Location / WFH:
You’ll join the team in London four days a week with flexibility to work from home once a week.
About you:
You have experience as a Data Engineer, working on scalable systems
You have Python, Java or Scala coding skills
You have experience with Kafka for data streaming including Kafka Streams and KTables
You have strong SQL skills (e.g. PostgreSQL, MySQL)
You have strong AWS knowledge, ideally including S3 and Lambda
You have a good understanding of data modelling and batch / streaming ETL / ELT patterns
You’re collaborative and pragmatic with great communication skills
What’s in it for you:
As a Senior Data Engineer you will receive a competitive package:
Salary to £80k
25 days holiday
Private medical insurance
Training and certifications
Perks such as restaurant and retail discounts
Apply now to find out more about this Senior Data Engineer opportunity.
At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. We’re an equal opportunities employer whose people come from all walks of life and will never discriminate based on race, colour, religion, sex, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. The clients we work with share our values.
Manager, Software Engineering
Expedia Group
London
In office
Mid
Private salary
RECENTLY POSTED
aws
terraform
kafka
kotlin
Join Us at Expedia Group!
At Expedia Group, we power global travel for everyone, everywhere. Our cutting-edge technology is designed to make travel smoother and more memorable, while our groundbreaking solutions support our partners. Join our diverse, vibrant, and welcoming community that drives our success!
Why Join Us?
We believe that to shape the future of travel, people must come first. Guided by our Values and Leadership Agreements, we foster an open culture where everyone belongs, differences are celebrated, and we know that when one of us wins, we all win.
We offer a comprehensive benefits package that includes:
Exciting travel perks
Generous time-off
Parental leave
A flexible work model with amazing office spaces
Career development resources to fuel your passion for travel
Join us in building a more open world!
Position: Software Engineering ManagerIntroduction to the Team
Private Label Solutions (PLS) is the B2B arm of Expedia Group, bringing our innovative technology and distribution solutions to partners worldwide. Our clients include global financial institutions, corporate managed travel, offline travel agents, and major airlines.
We are looking for a Software Engineering Manager to lead a team focused on building the foundational technology behind Expedia Partner Solutions’ Credit and Billing platforms. Your work will enable millions of travelers to access the right travel products at the right time!
Your Role
As part of the Core Technology organization, you will:
Lead an agile engineering team delivering high-scale, high-availability services for partner credit and billing use cases.
Own the technical execution and delivery plan across a core strategic project, collaborating with TPM and Product peers.
Drive operational excellence, including testing strategies, SLAs, observability, and production readiness.
Influence architecture and system design decisions, advocating for clean code, reusability, and long-term maintainability.
Build strong partnerships across engineering, finance, and product teams to align technical investments with business outcomes.
Ensure cross-team collaboration and unblock dependencies in a multi-team, multi-domain environment.
Provide regular coaching, mentoring, and career development for engineers and managers.
Grow and scale your team with a focus on diversity, autonomy, and long-term success.
Champion change and continuous improvement in system design and retrospectives.
Bring empathy, clarity, and context to both technical and non-technical conversations.
Experience and Qualifications
To thrive in this role, you should have:
5+ years of experience in software engineering, including 2+ years in a leadership role.
A proven track record of building and leading high-performing, distributed teams across multiple technologies or domains.
Deep experience in backend or full-stack development, with a solid grasp of service-oriented and event-driven architecture.
The ability to coach engineers through system design and performance trade-offs.
Experience collaborating with TPMs and product managers on roadmap planning and prioritization.
A strong grasp of cloud-native practices and modern development tools (we use AWS, Kotlin, Kafka, Terraform, etc.).
Experience in hiring, developing, and retaining talent in a fast-paced environment.
An inclusive leadership style that fosters trust, ownership, and team health.
Why Join Us?
As part of our team, you will:
Work on impactful, large-scale systems used by Expedia’s global B2B partners.
Be part of a thoughtful, collaborative culture that values autonomy and accountability.
Access top-tier technical challenges and the freedom to solve them the right way.
Share knowledge and learn from an experienced, diverse group of engineers and leaders.
Enjoy great benefits, competitive compensation, and, of course, travel perks!
We believe in embracing new perspectives, ideas, and ways of working. Inclusion, curiosity, and experimentation are just as important to us as technical expertise.
If you’re excited to build products that move money at scale, enable partners to grow, and support travelers around the world — we’d love to hear from you!
Accommodation Requests
If you need assistance with any part of the application or recruiting process due to a disability or other health conditions, please reach out to our Recruiting Accommodations Team.
We are proud to be recognized as a Best Place to Work on Glassdoor in 2024 and for our award-winning culture by organizations like Forbes, TIME, and Disability:IN.
Join the Expedia Group family and be part of something extraordinary!
Senior Data Scientist
CV Technical
London
Hybrid
Senior
£80k - £90k
RECENTLY POSTED
aws
tensorflow
python
pytorch
pandas
sql
London, UK (Hybrid 2 days pw)
Leading Tech Company
About the Company:
Our client is a fast-growing technology company based in London, dedicated to building innovative solutions that transform the way people and businesses interact with data. With a strong focus on AI, machine learning, and advanced analytics, they are tackling complex challenges and driving data-led decision-making across their industry.
The Opportunity:
We are partnering with our client to find a talented Senior Data Scientist who is passionate about using data to deliver real business impact. This is a fantastic opportunity to join a collaborative team where you’ll work alongside engineers, product managers, and business stakeholders to shape data-driven products and strategies.
Key Responsibilities:
Develop and implement machine learning models and algorithms to solve real-world business challenges.
Collaborate with cross-functional teams to identify opportunities where data science can create value.
Conduct statistical analysis and data mining to extract insights from large, diverse datasets.
Translate complex data findings into clear and actionable recommendations for both technical and non-technical audiences.
Ensure data quality and integrity while building scalable solutions.
Stay current with the latest developments in AI, machine learning, and data science methodologies.
Experienced Needed:
Masters or PhD in a STEM subject
Proficiency in Python, with experience in libraries such as pandas, scikit-learn, TensorFlow, or PyTorch.
Solid SQL skills and experience working with relational databases.
Exposure to cloud platforms (AWS, GCP, or Azure) would be advantageous.
Strong analytical and problem-solving abilities, with the ability to work in ambiguous environments.
Excellent communication skills to effectively present insights and recommendations.
A collaborative mindset, with the ability to work in a dynamic, fast-paced environment.
What’s on Offer:
Salary 80,000 - 90,000 DOE
Hybrid working model with an office in central London.
Opportunities for professional growth and development.
The chance to work on impactful projects within a forward-thinking tech company.
How to Apply:
If you’re a Data Scientist looking for your next challenge and want to work with a growing tech company that’s making an impact, we’d love to hear from you. Please apply via LinkedIn or reach out directly
Please note, sponsorship is NOT available for this role.
Back End Engineer
Bentley Whitaker Search and Selection
London
Remote or hybrid
Mid
£50k - £70k
RECENTLY POSTED
aws
mysql
python
nosql
java
Back End Engineer - Java, Python, AWS, MySQL, NoSql, REST APIs, Microservices, Machine Learning, Artificial intelligence (Remote or Hybrid - You choose!)
Back End Engineer:- You will be joining a fast-growing, research-driven company building an artificial intelligence using novel machine learning techniques. My client is revolutionising their industry with a track record of building things that others have ruled out as impossible. The Back End (Java) engineer will join a very bright, talented team of engineers with the guidance of technologists who have help build up some of the best known technology companies today. You will have a great opportunity to work with a variety of languages, frameworks and tools. Applicants will need a background in Java and/or Python with a focus on Server side technologies.
Core skills for the Back End Engineer:
12mths+ in a commercial Development role
Solid experience of Java
Good knowledge of Cloud Technologies (AWS) and Microservices
Degree in Computer Science, Engineering, or a related field, or equivalent hands-on experience in engineering.
Experience or interest in AI or Machine Learning
Salary for the Back End Engineer (Java) will depend on experience, but expect between £50,000 and £70,000 + Pension + benefits
Other benefits include:- Free breakfast and coffee, drinks and snacks all day/every day. Food ordered for a weekly team lunch. Regular team events (dinner, bowling, karting, poker nights, board-games etc.) The latest tech, generous annual leave and an amazing office with a balcony overlooking Notting Hill.
Back End Engineer - Java, Python, AWS, MySQL, NoSql, REST APIs, Microservices, Machine Learning, Artificial intelligence (Remote or Hybrid - You choose!)
+Applicants must have the right to work in the UK, no sponsorship is offered for this role
Senior Data Scientist
CV TECHNICAL LTD
London
Hybrid
Senior
£80k - £90k
RECENTLY POSTED
aws
tensorflow
python
pytorch
pandas
sql
London, UK (Hybrid 2 days pw)
Leading Tech Company
About the Company:
Our client is a fast-growing technology company based in London, dedicated to building innovative solutions that transform the way people and businesses interact with data. With a strong focus on AI, machine learning, and advanced analytics, they are tackling complex challenges and driving data-led decision-making across their industry.
The Opportunity:
We are partnering with our client to find a talented Senior Data Scientist who is passionate about using data to deliver real business impact. This is a fantastic opportunity to join a collaborative team where you’ll work alongside engineers, product managers, and business stakeholders to shape data-driven products and strategies.
Key Responsibilities:
Develop and implement machine learning models and algorithms to solve real-world business challenges.
Collaborate with cross-functional teams to identify opportunities where data science can create value.
Conduct statistical analysis and data mining to extract insights from large, diverse datasets.
Translate complex data findings into clear and actionable recommendations for both technical and non-technical audiences.
Ensure data quality and integrity while building scalable solutions.
Stay current with the latest developments in AI, machine learning, and data science methodologies.
Experienced Needed:
Masters or PhD in a STEM subject
Proficiency in Python, with experience in libraries such as pandas, scikit-learn, TensorFlow, or PyTorch.
Solid SQL skills and experience working with relational databases.
Exposure to cloud platforms (AWS, GCP, or Azure) would be advantageous.
Strong analytical and problem-solving abilities, with the ability to work in ambiguous environments.
Excellent communication skills to effectively present insights and recommendations.
A collaborative mindset, with the ability to work in a dynamic, fast-paced environment.
What’s on Offer:
Salary £80,000 - £90,000 DOE
Hybrid working model with an office in central London.
Opportunities for professional growth and development.
The chance to work on impactful projects within a forward-thinking tech company.
How to Apply:
If you’re a Data Scientist looking for your next challenge and want to work with a growing tech company that’s making an impact, we’d love to hear from you. Please apply via LinkedIn or reach out directly
Please note, sponsorship is NOT available for this role.
Cyber Security Senior Architect
WTW
London
Hybrid
Senior
Private salary
RECENTLY POSTED
aws
togaf
The Senior Cyber Security Architect is a strategic technical leader responsible for designing, implementing, and evolving the organization’s enterprise security architecture to protect critical assets, systems, and data. This role partners with senior IT, engineering, and business leaders to define security principles, standards, and roadmaps that align with business objectives while mitigating cyber risk. The Senior Cyber Security Architect serves as the primary subject matter expert on secure architecture design, emerging threats, and security technology evaluation, ensuring the organization is protected against both current and future cyber risks.
The Role
Security Architecture & Strategy
Develop, maintain, and communicate the enterprise security architecture framework, patterns, and standards.
Translate business and technical requirements into secure, scalable, and resilient architecture solutions.
Define and champion the organization’s secure-by-design and zero trust strategies.
Align architecture decisions with regulatory requirements, industry best practices, and organizational risk appetite.
Solution Design & Governance
Provide architecture oversight and guidance for IT and business projects to ensure compliance with security standards.
Conduct architecture reviews and threat modeling for new and existing systems, applications, and cloud deployments.
Advise on secure integration of on-premises, hybrid, and multi-cloud environments.
Collaborate with DevSecOps teams to embed security in the software development lifecycle (SDLC).
Technology Evaluation & Innovation
Research and assess emerging security technologies, tools, and practices for enterprise adoption.
Drive the evaluation, selection, and implementation of security platforms (e.g., IAM, PAM, SIEM, EDR, NDR, CASB).
Partner with infrastructure and network teams to enhance security posture without impeding operational efficiency.
Risk Management & Compliance
Ensure architecture designs meet compliance requirements such as NIST CSF, ISO 27001, DORA, and local data protection regulations.
Support security risk assessments and recommend remediation strategies for high-risk findings.
Collaborate with governance, risk, and compliance (GRC) teams to maintain audit readiness.
Leadership & Influence
Serve as a trusted advisor to the CISO, CTO, and senior business leaders on security architecture matters.
Mentor junior architects and security engineers, fostering technical excellence and innovation.
Represent the organization in external security forums and architecture working groups.
The Requirements
Progressive experience in cybersecurity, with experience in an architecture leadership role.
Deep expertise in security architecture across cloud, application, network, and endpoint domains.
Strong knowledge of zero trust principles, secure cloud architecture (AWS, Azure, GCP), and modern identity solutions (IAM, PAM, MFA, SSO).
Familiarity with enterprise security frameworks and regulations (e.g., NIST CSF, TOGAF, SABSA, DORA, GDPR).
Relevant certifications (e.g., CISSP, CCSP, SABSA, AWS/Azure Security Specialty) strongly preferred.
Exceptional communication, stakeholder management, and influencing skills.
Bachelor’s degree in Computer Science, Information Security, or related field is preferred.
At WTW, we believe difference makes us stronger. We want our workforce to reflect the different and varied markets we operate in and to build a culture of inclusivity that makes colleagues feel welcome, valued and empowered to bring their whole selves to work every day. We are an equal opportunity employer committed to fostering an inclusive work environment throughout our organisation. We embrace all types of diversity.
We’re committed to equal employment opportunity and provide application, interview and workplace adjustments and accommodations to all applicants. If you foresee any barriers, from the application process through to joining WTW, please contact your recruiter.
Enterprise Solution Architect Risk, Reg Compliance
Hays Specialist Recruitment Limited
London
In office
Mid
£725 - £800
RECENTLY POSTED
aws
togaf
Your new companyWorking for a globally rewnoned financial organisation based near St Paul’s in London. Your new roleSeeking an experienced Enterprise Solution Architect to join a newly established team within the Governance, Risk, and Compliance (GRC) function of a leading financial organisation. This newly created department is focused on building out the organisation’s GRC capabilities, identifying gaps, and designing a robust architectural roadmap to support long-term strategic goals.In this role, you will play a key part in shaping the future of GRC architecture, leveraging your deep expertise in regulatory compliance and risk from an architectural perspective. You will be responsible for developing frameworks that span multiple regulations, ensuring the organisation remains agile and compliant in a rapidly evolving regulatory landscape.The ideal candidate will bring a strong track record of delivering projects within financial services, with hands-on experience in enterprise, solution, and technical architecture. You will have previously operated as an Enterprise Architect across the AWS cloud platform and possess a high-level understanding of data platforms and their integration into enterprise systems. A solid grasp of regulatory controls, policies, and procedures is essential, as you will be supporting the organisation’s architectural roadmap with frameworks that ensure compliance and mitigate risk. This is a unique opportunity to be part of a forward-thinking team, driving innovation and resilience in a critical area of the business.What you’ll need to succeed
Experience with Governance, Risk and Compliance tools and Technologies such as Metricstream.
Strong understanding of Operational Risk practices in multi-national setups providing B2B services (Financial services or other regulated environments would be a plus)
Exposure to regulatory compliance such as DORA, SOX, HIPAA, CSRD etc.
Knowledge of architectural frameworks (e.g. TOGAF) and data/systems integration exposure
Strong communicator and good stakeholder management (team and upwards)
Experience in Architecture, design and delivery for Cloud (AWS, Azure) and on-prem platforms including integrations to key services
What you’ll get in returnFlexible working options available.What you need to do nowIf you’re interested in this role, click ‘apply now’ to forward an up-to-date copy of your CV, or call us now.
Hays Specialist Recruitment Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the T&C’s, Privacy Policy and Disclaimers which can be found at hays.co.uk
Senior Gen AI Engineer - London Hybrid - £90-120k
Ada Meher
London
Hybrid
Senior
£90k - £120k
RECENTLY POSTED
aws
github
python
mlflow
Senior Gen AI Engineer - London (Hybrid) - £90-120k****Prompt Engineering RAG Pipelines/Vector DB OpenAI & LangChain Flexible WorkingAda Meher is currently working with an equity backed SaaS software vendor in the construction space who are recruiting a Senior AI Engineer with skills in LLM, RAG pipeline builds & fine-tuning and optimisation of prompts & models to join their R&D focused engineering squad as they continue to push the boundaries of AI-enablement in their products.The ideal candidate will have a strong background in Software Engineering, preferably with Python, as well as multiple years of experience working on AI models in a production environment. They are also looking for a candidate who is comfortable leading a small development team on a project from end-to-end.As a modern workplace, they operate with a flexible hybrid policy. This means asking employees to attend their Central London hub for a team day once a week with the flexibility to work the rest of the week remotely - so candidates should be semi-local.To Be Considered:
6+ years of Engineering experience
2+ years of commercial work on production level LLM / Gen AI projects
Strong experience with Python/FastAPI, Node/Typescript or similar
Experience with relevant technologies such as OpenAI, LangChain/LangGraph, LlamaIndex
Experience with Hugging Face and LoRA/QLoRA for fine-tuning
Experience with RAG & Vector DBs eg. FAISS, Weaviate, Pinecone
Any experience of MLOps with MLFlow, AWS (SageMaker), CI/CD (GitHub Actions) or similar would be a benefit to an application
The employer is well known not only for the forward-thinking approach they have to adopting emerging technologies but also for the way they value their staff and employee wellbeing and boast an impressive collection of awards for their commitment to creating a positive culture of engineering excellence.We are expecting a strong response this Senior Gen AI Engineer role, so please apply within or get in touch today on with a CV for consideration.
Head of Applications
Xact Placements Limited
London
Remote or hybrid
Mid
£100k - £110k
RECENTLY POSTED
react
aws
mysql
kafka
typescript
airflow
Head of Applications Global Leadership Role High-Growth Cybersecurity Scale-Up UK (Hybrid/Remote)
This is an unmissable opportunity to join one of the fastest-scaling cybersecurity innovators on the market. Recognised by Gartner, backed by top-tier VC investors, and trusted by Fortune 500s and critical infrastructure providers, this scale-up is building the future of continuous offensive security.
They’re now seeking an ambitious Head of Applications to lead their global Application Technology team across the UK, Singapore, and the US. This is a high-impact leadership role where you’ll shape engineering culture, drive technical excellence, and scale customer-facing SaaS systems used by some of the largest enterprises in the world.
What you’ll be doing:
Leading and growing a global application engineering team, spanning backend and frontend systems
Building critical SaaS capabilities for enterprise clients: account lifecycle, access control, notifications, logging, multi-tenancy, and more
Partnering with local leads to ensure global alignment and consistent delivery standards
Driving a high-performance engineering culture through structured reviews, coaching, and career development pathways
Partnering with Product Design to deliver intuitive, robust enterprise workflows
Tackling complex technical challenges across large-scale data pipelines, secure access, event-driven systems, and multi-tenant architectures
Embedding Agile, DevOps, and best practices into the engineering organisation
What they’re looking for:
10+ years of experience building and managing distributed engineering teams across multiple regions
Proven track record as a global leader, managing local leads and scaling high-performing teams
Experience delivering enterprise-grade SaaS applications in a high-growth B2B environment
Strong technical depth across:
Backend: Node js, Typescript
Frontend: React, Typescript
Database: MySQL
Cloud/Infra: AWS, ECS, K8s, Airflow, Kafka, Serverless
Solid understanding of SaaS fundamentals: onboarding, authentication, SSO, granular authorisation, multi-tenancy
Familiarity with workflow orchestration, asynchronous tasks, and event-driven architecture
Ideally, exposure to cybersecurity platforms or large-scale security data systems
Why join?
Competitive compensation & benefits
Key leadership role in a high-growth cybersecurity scale-up
Opportunity to shape global engineering strategy and culture
Work with cutting-edge technology solving complex, industry-wide challenges
Endless career progression - growth and internal promotion are core to their DNA
This is a rare chance to lead a global engineering function at a company reshaping how the world’s biggest organisations stay ahead of attackers. If you’re a proven applications leader with SaaS and security experience - this one’s for you.
Apply now - your next big challenge starts here.
Head of Engineering
Xact Placements Limited
London
Remote or hybrid
Mid
£100k - £110k
RECENTLY POSTED
react
aws
mysql
kafka
typescript
airflow
Head of Applications Global Leadership Role High-Growth Cybersecurity Scale-Up UK (Hybrid/Remote)
This is an unmissable opportunity to join one of the fastest-scaling cybersecurity innovators on the market. Recognised by Gartner, backed by top-tier VC investors, and trusted by Fortune 500s and critical infrastructure providers, this scale-up is building the future of continuous offensive security.
They’re now seeking an ambitious Head of Applications to lead their global Application Technology team across the UK, Singapore, and the US. This is a high-impact leadership role where you’ll shape engineering culture, drive technical excellence, and scale customer-facing SaaS systems used by some of the largest enterprises in the world.
What you’ll be doing:
Leading and growing a global application engineering team, spanning backend and frontend systems
Building critical SaaS capabilities for enterprise clients: account lifecycle, access control, notifications, logging, multi-tenancy, and more
Partnering with local leads to ensure global alignment and consistent delivery standards
Driving a high-performance engineering culture through structured reviews, coaching, and career development pathways
Partnering with Product Design to deliver intuitive, robust enterprise workflows
Tackling complex technical challenges across large-scale data pipelines, secure access, event-driven systems, and multi-tenant architectures
Embedding Agile, DevOps, and best practices into the engineering organisation
What they’re looking for:
10+ years of experience building and managing distributed engineering teams across multiple regions
Proven track record as a global leader, managing local leads and scaling high-performing teams
Experience delivering enterprise-grade SaaS applications in a high-growth B2B environment
Strong technical depth across:
Backend: Node js, Typescript
Frontend: React, Typescript
Database: MySQL
Cloud/Infra: AWS, ECS, K8s, Airflow, Kafka, Serverless
Solid understanding of SaaS fundamentals: onboarding, authentication, SSO, granular authorisation, multi-tenancy
Familiarity with workflow orchestration, asynchronous tasks, and event-driven architecture
Ideally, exposure to cybersecurity platforms or large-scale security data systems
Why join?
Competitive compensation & benefits
Key leadership role in a high-growth cybersecurity scale-up
Opportunity to shape global engineering strategy and culture
Work with cutting-edge technology solving complex, industry-wide challenges
Endless career progression - growth and internal promotion are core to their DNA
This is a rare chance to lead a global engineering function at a company reshaping how the world’s biggest organisations stay ahead of attackers. If you’re a proven applications leader with SaaS and security experience - this one’s for you.
Apply now - your next big challenge starts here.
Senior Go Developer
Fruition Group
London
Hybrid
Senior
Private salary
RECENTLY POSTED
aws
kubernetes
cassandra
kafka
docker
grpc
+1
6 months Contract
London Hybrid or Fully Remote
An exciting opportunity for a highly skilled Senior Go Developer to join a leading technology business on a contract basis. This organisation is recognised for its engineering excellence and is seeking a Senior Go Developer to help scale distributed systems and deliver high-performance solutions.
In this role, the Senior Go Developer will design, develop, and implement data-intensive applications across the full engineering life cycle. You’ll architect and deliver microservices-based systems using Go (Golang), AWS, Kubernetes, Docker, and Kafka, working closely with cross-functional teams to build scalable, reliable, and resilient platforms.
You’ll also play a key role in optimising system performance, improving reliability, and ensuring scalability, while contributing to code reviews, design discussions, and knowledge sharing across the engineering function.
Senior Go Developer - Key Requirements:
Strong commercial experience in Back End development
Advanced skills in Go (Golang), with proven expertise in AWS, Kubernetes, and Docker
End-to-end software engineering experience, including system design and architecture
Background in complex, large-scale, data-driven applications
Product-focused approach, ideally within fast-paced tech organisations (start-ups or scale-ups)
Knowledge of Kafka, Cassandra, gRPC, and microservices is a strong advantage
Open-source contributions are beneficial
If you’re a Senior Go Developer looking for a challenging 6-month contract with a forward-thinking tech company, apply today.
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Senior Fullstack Developer
Xact Placements Limited
London
Fully remote
Senior
£70k - £80k
RECENTLY POSTED
react
aws
graphql
kubernetes
kafka
nosql
+3
Senior Full Stack Engineer Cybersecurity Scale-Up Fully Remote (Global)
Want to use your full stack skills to help stop real-world cyber attacks? This is your chance to join a fast-growing, VC-backed cybersecurity innovator, recognised by Gartner and trusted by Fortune 500s and critical infrastructure providers worldwide.
They’re building cutting-edge technology that helps organisations continuously understand how they could be compromised - and they’re scaling fast.
Now, they’re looking for a Senior Full Stack Engineer to join their Client Facing Applications (CFA) team, where you’ll help shape the customer experience for some of the world’s largest enterprises.
What you’ll be doing:
Designing and developing enterprise-grade SaaS features across backend and frontend systems
Building secure, scalable, and high-performing APIs and services (NestJS, GraphQL, REST)
Creating data-driven dashboards and UIs with React, Next.js, and Chakra UI
Translating product and design requirements into elegant, maintainable solutions
Troubleshooting and optimising performance across the full stack
Collaborating with product managers, designers, and engineers to deliver seamless client experiences
Driving continuous improvements in engineering practices, tooling, and processes
What they’re looking for:
5+ years’ experience building enterprise SaaS products (ideally in cybersecurity or data-heavy environments)
Strong backend development with TypeScript, NestJS, Sequelize ORM, GraphQL, REST APIs
Frontend expertise with ReactJS, NextJS, Typescript, Chakra UI
Experience with MySQL and NoSQL databases
Familiarity with messaging/event-driven systems (Kafka)
Ability to work closely with designers (Figma) and translate complex business logic into intuitive UI/UX
Problem-solver with strong debugging, troubleshooting, and optimisation skills
Thrives in high-growth startup/scale-up environments, with adaptability and ownership mindset
Bonus points if you have:
AWS or Kubernetes experience
Workflow engine knowledge (Xstate, Argo Workflows)
Broader understanding of networking and infrastructure
Why join?
Competitive compensation & benefits
A key role in a high-growth cybersecurity scale-up solving global challenges
Cutting-edge tools and kit to help you succeed
Endless growth opportunities - internal promotion is core to their culture
Collaborate with cybersecurity experts and work on problems that really matter
This isn’t just another engineering role. It’s your chance to build technology that protects enterprises from real-world attacks while shaping the future of offensive security at scale.
Interested? Apply now - this one won’t stay open for long.
Enterprise Solution Architect (Risk, Reg Compliance)
Hays Technology
London
In office
Mid
£725k/day - £801k/day
RECENTLY POSTED
aws
togaf
Your new company
Working for a globally rewnoned financial organisation based near St Paul’s in London.
Your new role
Seeking an experienced Enterprise Solution Architect to join a newly established team within the Governance, Risk, and Compliance (GRC) function of a leading financial organisation. This newly created department is focused on building out the organisation’s GRC capabilities, identifying gaps, and designing a robust architectural roadmap to support long-term strategic goals.
In this role, you will play a key part in shaping the future of GRC architecture, leveraging your deep expertise in regulatory compliance and risk from an architectural perspective. You will be responsible for developing frameworks that span multiple regulations, ensuring the organisation remains agile and compliant in a rapidly evolving regulatory landscape.
The ideal candidate will bring a strong track record of delivering projects within financial services, with hands-on experience in enterprise, solution, and technical architecture. You will have previously operated as an Enterprise Architect across the AWS cloud platform and possess a high-level understanding of data platforms and their integration into enterprise systems. A solid grasp of regulatory controls, policies, and procedures is essential, as you will be supporting the organisation’s architectural roadmap with frameworks that ensure compliance and mitigate risk. This is a unique opportunity to be part of a forward-thinking team, driving innovation and resilience in a critical area of the business.
What you’ll need to succeed
Experience with Governance, Risk and Compliance tools and Technologies such as Metricstream.
Strong understanding of Operational Risk practices in multi-national setups providing B2B services (Financial services or other regulated environments would be a plus)
Exposure to regulatory compliance such as DORA, SOX, HIPAA, CSRD etc.
Knowledge of architectural frameworks (e.g. TOGAF) and data/systems integration exposure
Strong communicator and good stakeholder management (team and upwards)
Experience in Architecture, design and delivery for Cloud (AWS, Azure) and on-prem platforms including integrations to key services
What you’ll get in return
Flexible working options available.
What you need to do now
If you’re interested in this role, click ‘apply now’ to forward an up-to-date copy of your CV, or call us now.
Hays Specialist Recruitment Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the T&C’s, Privacy Policy and Disclaimers which can be found at (url removed)
AI / Gen-AI Leader
Damia Group Ltd
London
Hybrid
Mid
£105k - £110k
RECENTLY POSTED
processing-js
aws
snowflake
AI / Gen-AI Leader - London (hybrid) - (Apply online only)k base plus 15% cash flex which can be taken as cash or used to buy extra benefits and target 20% bonus
Our client, a leading global consulting firm is seeking a dynamic AI / Gen-AI Leader to drive their go-to-market strategy, engage with clients in the Financial Services sector, and generate new business opportunities. This role requires a strategic thinker with deep expertise in generative AI, agentic AI, and large language models (LLMs) such as OpenAI’s GPT, LLaMA, Hugging Face models, and others. You will leverage these technologies to craft high-impact, AI-driven solutions tailored to the Banking, Capital Markets (BCM), and Insurance sectors.
Develop and execute go-to-market strategies for AI and Gen-AI solutions in Financial Services, focusing on Banking, Capital Markets, and Insurance.
Build and maintain strong client relationships, delivering tailored AI solutions using generative and agentic AI frameworks.
Identify innovative use cases for generative and agentic AI, such as credit decisioning, fraud detection, personalized banking, claims processing, underwriting automation, and algorithmic trading.
Provide consulting on Gen-AI scalability, governance, prompt engineering, Gen-AI factory setup, and LLM fine-tuning.
Integrate advanced AI technologies using platforms like OpenAI, Anthropic, Meta’s LLaMA, and emerging multi-modal models.
Design and deploy autonomous agentic AI systems for financial applications, including self-optimizing models and automated compliance monitoring.
Represent our client as an AI thought leader at industry events, conferences, and client engagements.
Demonstrate expertise in LLMs (e.g., GPT-4, LLaMA) with practical implementations across financial domains.
Build scalable AI architectures using cloud platforms (AWS, Azure, GCP) and integrate with Snowflake and Databricks.
Ensure AI solutions adhere to governance standards and financial regulations, with a focus on ethical and compliant deployment.
Your Profile:
Skilled in identifying and articulating AI/ML, generative AI, and agentic AI use cases in banking and insurance, including credit decisioning, claims processing, fraud detection, and personalized banking.
Proven ability to build compelling business cases and value models that highlight the tangible impact of AI solutions.
Strong experience across the full pre-sales cycle, including solution conceptualization, client presentations, proposal development, and contract negotiation.
Demonstrates strategic thinking and project leadership to drive AI initiatives from concept to deployment.
Experienced in building, mentoring, and leading high-performing AI teams across onshore and offshore locations.
Excellent client engagement skills, with a track record of working effectively with C-level stakeholders.
Holds a data science or STEM degree with a solid foundation in AI, ML, and advanced analytics.
Passionate about innovation and thought leadership in AI, consistently delivering creative solutions to complex business challenges.
Technically proficient in LLMs, agentic AI frameworks, Gen AI factories, reusable AI assets, and integration with financial systems.
Demonstrated leadership in client-facing roles, navigating complex environments, and driving AI adoption through strong stakeholder relationships.
AI / Gen-AI Leader - London (hybrid) - (Apply online only)k base plus 15% cash flex which can be taken as cash or used to buy extra benefits and target 20% bonus
Damia Group Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept our Data Protection Policy which can be found on our website.
Please note that no terminology in this advert is intended to discriminate on the grounds of a person’s gender, marital status, race, religion, colour, age, disability or sexual orientation. Every candidate will be assessed only in accordance with their merits, qualifications and ability to perform the duties of the job.
Damia Group is acting as an Employment Business in relation to this vacancy and in accordance to Conduct Regulations 2003.
Databricks Engineer
Experis
London
Hybrid
Mid
£425/day - £430/day
RECENTLY POSTED
aws
github
delta-lake
gitlab
sql
vault
+1
London- hybrid- 3 days per week on-site
6 Months +
UMBRELLA only- Inside IR35
Key Responsibilities
Design, develop, and maintain ETL/ELT pipelines using Airflow for orchestration and scheduling.
Build and manage data transformation workflows in DBT running on Databricks.
Optimize data models in Delta Lake for performance, scalability, and cost efficiency.
Collaborate with analytics, BI, and data science teams to deliver clean, reliable datasets.
Implement data quality checks (dbt tests, monitoring) and ensure governance standards.
Manage and monitor Databricks clusters & SQL Warehouses to support workloads.
Contribute to CI/CD practices for data pipelines (version control, testing, deployments).
Troubleshoot pipeline failures, performance bottlenecks, and scaling challenges.
Document workflows, transformations, and data models for knowledge sharing.
Required Skills & Qualifications
3-6 years of experience as a Data Engineer (or similar).
Hands-on expertise with:
DBT (dbt-core, dbt-databricks adapter, testing & documentation).
Apache Airflow (DAG design, operators, scheduling, dependencies).
Databricks (Spark, SQL, Delta Lake, job clusters, SQL Warehouses).
Strong SQL skills and understanding of data modeling (Kimball, Data Vault, or similar).
Proficiency in Python for scripting and pipeline development.
Experience with CI/CD tools (e.g., GitHub Actions, GitLab CI, Azure DevOps).
Familiarity with cloud platforms (AWS, Azure, or GCP).
Strong problem-solving skills and ability to work in cross-functional teams.
All profiles will be reviewed against the required skills and experience. Due to the high number of applications we will only be able to respond to successful applicants in the first instance. We thank you for your interest and the time taken to apply!
Machine Learning Quant Engineer
Michael Page Technology
London
Hybrid
Mid
£1k - £1k
RECENTLY POSTED
aws
tensorflow
python
pytorch
This temporary role requires an ML Quant Engineer with expertise within an Investment Bank. The position is based in London and involves developing and implementing machine learning models to support financial decision-making.
Client Details
The hiring organisation is a large entity within the financial services industry.
Description
Design and implement machine learning models for financial applications, with a focus on derivatives pricing, risk analytics, and market forecasting.
Build scalable ML pipelines to process large volumes of financial data efficiently.
Develop deep learning architectures for time series prediction, anomaly detection, and pattern recognition in market data.
Optimise model performance using techniques such as hyper-parameter tuning, ensemble methods, and neural architecture search.
Collaborate with quantitative analysts to align ML models with pricing methodologies and identify opportunities for innovation.
Support the deployment of ML solutions into production systems for real-time risk management and pricing automation.
Profile
Advanced Machine Learning Expertise - Demonstrates deep understanding of ML algorithms (supervised, unsupervised, reinforcement learning) and has hands-on experience with deep learning architectures like RNNs, LSTMs, and Transformers.
Strong Financial Domain Knowledge - Understands financial instruments, derivatives, and risk management principles, with experience applying ML in trading, pricing, or risk analytics contexts.
Technical Proficiency - Expert in Python and familiar with ML frameworks such as PyTorch, TensorFlow, and JAX. Skilled in using tools like scikit-learn, XGBoost, and LightGBM.
Data Engineering & Infrastructure Skills - Comfortable working with big data technologies (Spark, Dask), SQL/NoSQL databases, and cloud platforms (AWS, GCP, Azure). Able to build scalable ML pipelines for large-scale financial data.
Model Optimisation & Deployment Experience - Proven track record of deploying ML models at scale, with experience in hyper-parameter tuning, ensemble methods, and neural architecture search.
Collaborative & Business-Focused - Works effectively with quants and stakeholders to translate financial requirements into ML solutions. Communicates insights clearly and aligns models with strategic business goals.
Innovative & Analytical Mindset - Capable of developing data-driven approaches that complement traditional quantitative models and drive measurable impact in pricing and risk analytics.
Job Offer
A competitive daily rate up to £1200 per day (inside IR35), depending on experience.
The opportunity to work on cutting-edge machine learning projects in the financial services industry.
A temporary role offering valuable exposure to a global organisation in London.
BASED 4 DAYS PER WEEK IN THE OFFICE (Central London)
Senior Software Engineer Java Digital Consultancy London Hybrid up to £85K
Interquest
London
Hybrid
Senior
£80k - £85k
RECENTLY POSTED
java
aws
restful
Senior Software Engineer - Java (Digital Consultancy) - London - Hybrid - up to £85K
We’re working with a rapidly growing UK digital consultancy with a headcount of 500+ and offices across the UK.
They combine technical excellence with a supportive culture that genuinely puts people first.
This is an opportunity to join a cross-functional agile team delivering innovative solutions across industries such as finance, e-commerce, gaming, and more. You’ll be working alongside engineers, QA, product, and design to build robust systems that make a real impact.
The Role As a Senior Software Engineer, you will: • Work across multiple technologies, producing scalable, testable, and well-architected code. • Develop and maintain RESTful Java APIs and database integrations. • Troubleshoot and solve complex software issues, ensuring quality and performance. • Guide and mentor less experienced engineers through feedback, pair programming, and coaching.
Tech Stack • Backend: Java, RESTful APIs • Cloud & Deployment: AWS, CI/CD pipelines • Other: Third-party API integrations
About You • Have strong Java API development experience. • Supports for best practices such as code reviews, pair programming, and automated testing. • Have experience with cloud services and CI/CD • Can handle client-facing discussions professionally and confidently. • Enjoy collaborating in agile teams and mentoring others to help them grow. What’s on Offer • Salary up to £85,000 • Hybrid working model - London office • 35 days holiday in total (including flexible bank holidays) • Comprehensive private medical insurance • Pension matched up to 5% • Exciting projects with household-name clients in finance, tech, retail, gaming, and more Interested? Apply now by submitting your CV or get in touch with us directly to discuss the role in more detail. We’d love to hear from you!
InterQuest Group is acting as an employment agency for this vacancy. InterQuest Group is an equal opportunities employer and we welcome applications from all suitably qualified persons regardless of age, disability, gender, religion/belief, race, marriage, civil partnership, pregnancy, maternity, sex or sexual orientation. Please make us aware if you require any reasonable adjustments throughout the recruitment process.
Test SME - Data Migration
Michael Page Technology
London
Hybrid
Mid
£600
RECENTLY POSTED
aws
mysql
talend
sql
ssis
The Test SME - Data Migration will be responsible for supporting and executing with the testing phase of data migration projects to ensure accuracy, integrity, and consistency of data. This role demands extensive experience in data migration execution, data migration testing, data management, and a deep understanding of banking systems.
Client Details
Our client is a leading global financial services organisation undergoing a major transformation across its EMEA operations. They pride themselves on strong governance, innovative data practices, and a commitment to building cutting-edge capabilities within their growing Data Office.
Description
Test Strategy Development: Be part of the Development and documenting a comprehensive test strategy for data migration activities ensuring data accuracy, consistency, integrity and performance. Collaborate with project managers, data migration teams, and stakeholders to align the test strategy with project objectives.
Test Planning and Execution: Design, and execution of data migration testing, including functional, system, and acceptance testing. Identify and document data migration risks and ensure mitigation strategies are in place. Be part of defect tracking and resolution processes, ensuring all issues are addressed in a timely manner.
Data Management and Quality Assurance: Ensure data quality standards are adhered to during the migration process. Utilise data profiling tools to identify and rectify data anomalies and inconsistencies.
Team membership and Coordination: Adhere to best practices and standards. Foster a collaborative environment, ensuring clear communication among team members and stakeholders.
Reporting and Documentation: Generate detailed reports on testing activities, including defects discovered, resolution status, and recommendations for improvements. Maintain thorough documentation of all testing activities and findings for future reference and audits.
Stakeholder Engagement: Engage with stakeholders to ensure requirements are understood and met, and to report on testing progress and outcomes. Act as a liaison between technical teams and business stakeholders, ensuring alignment and understanding of data migration objectives and outcomes.
Data Lineage identification and Data Mapping - use mapping of source data fields to target field. Validate transformation rules and logic
Data Quality Control, Collection and Cleansing: Identify and collect relevant data from multiple sources, including internal databases, external vendors, and APIs. Perform data cleaning, transformation, and standardization processes to ensure data accuracy and consistency.
Data Analysis, validation and Interpretation: Utilise tools to perform advanced data analytics, including data blending, analysis, and modelling. Collaborate with business stakeholders to understand their requirements and translate them into data analysis tasks.
Problem Solving and Testing: Technical skills to use data to support investigations and testing, understand how to get root cause of problems, working with SMEs and team members. Review and recommend improvements to processes, data, controls to support improving the Bank.
Continuous Improvement: Keep abreast of industry best practices and emerging technologies in data migration and testing. Recommend process improvements to enhance the efficiency and effectiveness of data migration and testing activities.
Test and validate - Semantic recognition, Data Rules and tool configuration: A number of our programmes or work have a configuration component. The ability to evaluate, test and improve these rules is key.
Work with operations teams to approve setup of reference/ static data for testing and go-live
Coordinate with business process stakeholders to ensure that the business context and impacts are considered
Post-Migration Review: Conduct a post-migration review to identify any lessons learned and areas for improvement in future migrations
Profile
Experience in:
Data Migration execution and Testing
The use of any Data Migration Test tools - Data gaps ETL Validator, Testing Xperts, Tx tools, Dextrus, Azure Document DB, Beyond compare, Informix, Integrate.io, Excel
Rule writing and testing
Working with Large and Small Data
Data Management
Proficiency in using ETL tools - Talend, Informatica, SSIS and with Migration tools - AWS DMS, Azure Data Migration Service
Strong SQ skills and familiarity with database technologies - Oracle, SQL Server, MySQL
Principles of Data Testing, Data Governance and Data Quality
Data Remediation
Data Security and Handling within a Bank.
Documentation and Requirements Gathering
The Ability to solve problems, develop options and champion change
The ability to identify, manage and maintain Risk (RAID) Logs
The ability to defined and realise benefits
You must be able to work on multiple projects at one time, and be able to organise and priories work
Job Offer
Rate: £600/day
IR35: Inside IR35
Location: London - 2 to 3 days per week onsite
Contract: Until February 2026
Start: ASAP (flexible for the right candidate)

Frequently asked questions

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