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64 senior data engineer jobs found in London

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London United Kingdom senior data engineer
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Contract Spy
Apr 27, 2026
6 Months or more
Senior Data Engineer at UK Export Finance, London, 8 Months, £Contract Rate
Contract Spy London, UK
About the Role We are looking for a Senior Data Engineer with strong Informatica expertise to join our team. You will be responsible for designing, building, and supporting scalable data integration solutions, working closely with data architects, analysts, and business stakeholders to deliver reliable, performant data pipelines. This role sits within a finance reporting modernisation programme, supporting complex, regulated financial datasets used for monthly reporting. The work involves large, interdependent datasets and complex financial calculations, where accuracy, traceability, and clear documentation are critical. Experience working with finance or insurance data in regulated environments will be highly beneficial. We are looking for a Senior Data Engineer who has hands-on experience working in SME-scale teams where adaptability, autonomy and end-to-end ownership is essential - taking on multiple roles outside of the typical engineer workload and contributing...
Contract Spy
Apr 27, 2026
Duration not stated
Senior Python Engineer at Mindera, London/Remote, £Competitive Day Rate (Outside IR35)
Contract Spy Hybrid (London, UK)
Senior Python Engineer - Contract - Outside IR35 We are hiring a Senior AI Engineer to join a team responsible for recommendation systems across web and mobile, working on a key AI-driven product, the AI Stylist. This is a production-focused role. The AI Stylist is already live to customers and expected to scale significantly, with a large backlog of enhancements and increasing demand. This is a hybrid position where 3 days per week are expected onsite in central London.   About the Role You will join the Recommendations team, contributing to the AI Stylist experience, an AI-powered product that combines conversational interfaces with recommendation capabilities. The work sits at the intersection of engineering and AI, focused on improving relevance, quality, and reliability in a live, customer-facing system. You will collaborate closely with engineers, data scientists, and product stakeholders to evolve the system and support its rapid growth....
Contract Spy
Apr 27, 2026
6 Months or more
Engineering Manager (Front-End) at Mindera, London Paddington, 6 Months, £Contract Rate (Outside IR35)
Contract Spy Paddington, London, UK
Description We are seeking a passionate Software Engineering Manager with a strong background in modern frontend engineering, particularly React, Next.js, and TypeScript, to provide technical leadership and operate with excellence. Creative, curious, and confident, you will be an integral part of our empowered, self-managing, multi-disciplinary engineering teams -designing, building, releasing, and maintaining high-quality digital products. You will play a key role in shaping and growing a best-in-class frontend engineering capability, establishing modern development practices and building scalable, high-performance web applications. This is an initial 6-month contract (outside IR35) requiring 3 days per week onsite in Paddington, London. Key Accountabilities Team Leadership Build, mentor, and lead a high-performing team of frontend engineers specialising in React, Next.js, and TypeScript. Foster a culture of collaboration, technical excellence, and...
Contract Spy
Apr 27, 2026
Duration not stated
Python - Senior Developers - AI Training at Prolific, UK, £Contract Rate
Contract Spy London, England, United Kingdom
About Prolific Prolific is not just another player in the AI space – we are building the biggest pool of quality human data in the world. Over 35,000 AI developers, researchers, and organizations use Prolific to gather data from paid study participants with a wide variety of experiences, knowledge, and skills. The role We're looking for Senior Python Developers to join our Expert Network to help train and evaluate cutting-edge AI models. If you have a background in Software Engineering, we'll send you a quick 10- to 15-minute test to assess your skills. If successful, you'll be invited to join Prolific as a participant, where you'll get paid to help AI understand and summarize complex scientific data. Researchers looking for your skills tend to pay up to $50/hr, depending on skills and experience level . You must be prepared to complete paid tasks that require one hour of uninterrupted work , though many are shorter. What you'll bring Educational...
Contract Spy
Apr 27, 2026
Duration not stated
Senior Cloud Engineer at Deloitte, London, £Contract Rate
Contract Spy London, UK
  Job Title: Senior Cloud Engineer (contract) Location: London Hybrid. Travel to the London office 3 days a week Duration: 11 months Contract Start Date: ASAP *note client onboarding takes 6 weeks from offer Day Rate: Competitive (Inside IR35)   Deloitte Working with the Deloitte Associate (Contractor) Programme means we can offer you the opportunity to work on a variation of industry and client related projects. Our aim is to retain the best talent and so when your project end date nears our team of Talent Community Advisors will be working with you to look at alternative projects within the firm that suit your experience should you wish to continue with Deloitte.   The Role We are looking for experienced Senior Cloud Engineers to work in the Technology and Transformation Team at Deloitte. You will work with one of our global financial services clients. This position requires...
Contract Spy
Apr 23, 2026
Duration not stated
Technical Team Lead at Xcelirate, London, £Contractor Rate
Contract Spy London, UK
Who Are We? Xcelirate develops technologically-advanced platforms which are accessed by thousands of users every minute! We are proud to offer a workplace where the sharpest developers come together to strategically plan and swiftly execute practices which see us maintain our existing market dominance and attain global expansion. We owe our success to our customers who have seen us grow across a decade, and our talented team who have made that growth possible!   What are we looking for? You're a Principal-Level Engineer first. The tech lead title is almost incidental. It just means you're the person the team orbits around, because that's what happens naturally when you're the one who understands the system most deeply and keeps the clearest head under pressure. The 10% that's people management fits inside your engineering work, not alongside it. You hire, you steer, you unblock, but you do it the way a strong engineer does everything: with good...
Contract Spy
Apr 22, 2026
Duration not stated
Senior Solidity Engineer at Test Yantra, London/Remote, £400 per day
£400 per day
Contract Spy Hybrid (London, UK)
Must have skills: Demonstrable experience with Solidity. Strong understanding of blockchain security practices and potential vulnerabilities. Proficiency in Hardhat and Foundry. Experience with Solidity security testing tools like Slither, Mythril, Echidna Practical experience with scripting languages like Javascript or Typescript. Ability to craft unit, integration, fork, and invariant tests, ensuring code longevity. Demonstrable aptitude for best development practices, data structures, algorithms, and methodologies. Bachelor's degree in Computer Science, Engineering, or a related STEM discipline. Excellent debugging and troubleshooting skills. Strong written and verbal communication skills. Self-motivated with the ability to work in a fast-paced, evolving environment. Proficient communication skills in English. Development background in sectors such as banking, finance, or trading, paired with a comprehensive grasp of financial...
Contract Spy
Apr 21, 2026
Duration not stated
Data Platform Engineer at Handelsbanken, London, £Day Rate
Contract Spy London, UK
Job Reference hbuk/TP/158/2489 Contract Type Day Rate Contractor Closing Date 20 May, 2026 Job Category Tech, Data and Digital Business Unit Systems and Infrastructure (UKT) Location London, United Kingdom Posted on 20 April, 2026   We are looking for a Data Engineer to design, build and maintain a scalable on-premise data warehouse using modern data engineering practices. You will work with Python, Apache Airflow and DBT in a Unix/Linux environment to develop robust data pipelines, transform data into curated models and support analytics and reporting. This role requires someone comfortable working in a non-cloud (on-prem) environment, with a strong ownership of infrastructure-aware data solutions. Main Responsibilities  Design and build end-to-end ETL/ELT pipelines using Python and SQL. Develop and Orchestrate workflows using Apache Airflow. Implement transformation logic and data models using dbt...
Contract Spy
Apr 20, 2026
Duration not stated
Senior Cloud Engineer at Deloitte, London, £Contract Rate
Contract Spy London, UK
Job Title: Senior Cloud Engineer (contract) Location: London Hybrid. Travel to the London office 3 days a week Duration: 11 months Contract Start Date: ASAP *note client onboarding takes 6 weeks from offer Day Rate: Competitive (Inside IR35)   Deloitte Working with the Deloitte Associate (Contractor) Programme means we can offer you the opportunity to work on a variation of industry and client related projects. Our aim is to retain the best talent and so when your project end date nears our team of Talent Community Advisors will be working with you to look at alternative projects within the firm that suit your experience should you wish to continue with Deloitte.   The Role We are looking for experienced Senior Cloud Engineers to work in the Technology and Transformation Team at Deloitte. You will work with one of our global financial services clients. This position requires a solid engineering experience as...
Contract Spy
Apr 20, 2026
Duration not stated
Senior AI Engineer at Softwire, London Area, £610 per day
£610 per day
Contract Spy London Area, United Kingdom
Senior AI Engineer - Inside IR35 - Contract   We're looking for a Senior AI Engineer to join an insurance client project to work on a 4-week-long discovery, which will lead to 5+ months of additional work.   The selected consultant will have the ability to use AI tools like Clude Code fot development, have experience migrating legacy code to new cloud technology stack, and it'd be great if you had experience working with Oracle forms and migrating it to Azure cloud.   Tech Experience: Azure, .Net, React, SQL   £610 per day inside IR35 2-3 days per week in London office   Start date: 05/05/2026 End date: 06/06/2026 (Likely extension to November 2026)   About Softwire   Softwire is a leading UK technology and strategy consultancy. From enterprise to government, we help visionary organisations turn strategic ambitions into results at scale. Our practices cover AI transformation, data...
Contract Spy
Apr 17, 2026
Duration not stated
Senior Full Stack Engineer at Conquer AI, London, £Contract Rate (Outside IR35)
Contract Spy London Area, United Kingdom
Senior Full Stack Engineer ( Finance Experience Required )   London | Contract | Outside IR35 | Conquer AI   We’re hiring a Senior Full Stack Engineer at Conquer AI.   This is a hands-on engineering role for someone who can work across the stack, but with real strength in backend systems, data, and platform architecture. You’ll be joining us to help deliver a high-impact project in a complex, commercially critical environment.   This is not a pure frontend role. This is not a role for someone who wants to stay at the architecture-diagram level. We’re looking for someone who can take messy business processes, turn them into clear technical systems, and ship production-grade software.   What you’ll do Build and evolve workflow platforms that support intake, approvals, pipeline management, and execution handoffs Design and deliver APIs, services, and integrations across internal...
Contract Spy
Apr 16, 2026
Duration not stated
Senior AI Engineer at Softwire, London Area, £610 per day
£610 per day
Contract Spy London Area, United Kingdom
Senior AI Engineer - Inside IR35 - Contract   We're looking for a Senior AI Engineer to join an insurance client project to work on a 4-week-long discovery, which will lead to 5+ months of additional work.   The selected consultant will have the ability to use AI tools like Clude Code fot development, have experience migrating legacy code to new cloud technology stack, and it'd be great if you had experience working with Oracle forms and migrating it to Azure cloud.   Tech Experience: Azure, .Net, React, SQL   £610 per day inside IR35   Start date: 05/05/2026 End date: 06/06/2026 (Likely extension to November 2026)   About Softwire   Softwire is a leading UK technology and strategy consultancy. From enterprise to government, we help visionary organisations turn strategic ambitions into results at scale. Our practices cover AI transformation, data platforms, systems engineering advanced...
Contract Spy
Apr 16, 2026
Duration not stated
Senior DevOps & Infrastructure Engineer - Terraform at Red Badger, London, £Contract Rate
Contract Spy London, UK
We currently have an urgent opening for a skilled DevOps Engineer to join us on a contract basis ASAP. This is a major Greenfield platform build for a UK bank. Joining a cross functional team of 14, in the Infrastructure / DevOps phase of building a brand new payments platform from scratch. Required skills: Terraform AWS (some Azure) Kubernetes Secure enterprise platform development experience Account and user policies CI/CD pipeline development 2 days in person working (Monday & Weds - Canary Wharf) START DATE MONDAY 30th MARCH   The role   We're looking for a Senior DevOps / Platform Engineer to join a specific project with a leading UK Bank. Red Badger delivers high quality digital products using a lean delivery process and multidisciplinary, cross-functional teams. The Senior DevOps / Platform Engineer has deep expertise in building and operating digital products,...
Contract Spy
Apr 16, 2026
Duration not stated
Technical Team Lead, Contract at Xcelirate, London, £Contractor Rate
Contract Spy London, UK
Who Are We? Xcelirate develops technologically-advanced platforms which are accessed by thousands of users every minute! We are proud to offer a workplace where the sharpest developers come together to strategically plan and swiftly execute practices which see us maintain our existing market dominance and attain global expansion. We owe our success to our customers who have seen us grow across a decade, and our talented team who have made that growth possible!   What are we looking for? You're a principal-level engineer first. The tech lead title is almost incidental. It just means you're the person the team orbits around, because that's what happens naturally when you're the one who understands the system most deeply and keeps the clearest head under pressure. The 10% that's people management fits inside your engineering work, not alongside it. You hire, you steer, you unblock, but you do it the way a strong engineer does everything: with good...
Contract Spy
Apr 15, 2026
Duration not stated
Python Platform Engineer at G-Research, London Area, £Contract Rate
Contract Spy London Area, United Kingdom
We tackle the most complex problems in quantitative finance, by bringing scientific clarity to financial complexity.   From our London HQ, we unite world-class researchers and engineers in an environment that values deep exploration and methodical execution - because the best ideas take time to evolve. Together we’re building a world-class platform to amplify our teams’ most powerful ideas.   As part of our engineering team, you’ll shape the platforms and tools that drive high-impact research - designing systems that scale, accelerate discovery and support innovation across the firm.   Take the next step in your career.   The role   The Storage Engineering team manages hundreds of petabytes across VAST, PowerScale, ECS, Rubrik, Alletra, Pure and a custom Tier Zero platform. The current operational tooling is a patchwork of GitOps workflows and Jenkins pipelines. We're replacing it with a custom-built...
Contract Spy
Apr 15, 2026
Duration not stated
Senior Solidity Engineer at Test Yantra, London/Remote, £400 per day
£400 per day
Contract Spy Hybrid (London, UK)
Must have skills: Demonstrable experience with Solidity. Strong understanding of blockchain security practices and potential vulnerabilities. Proficiency in Hardhat and Foundry. Experience with Solidity security testing tools like Slither, Mythril, Echidna Practical experience with scripting languages like Javascript or Typescript. Ability to craft unit, integration, fork, and invariant tests, ensuring code longevity. Demonstrable aptitude for best development practices, data structures, algorithms, and methodologies. Bachelor's degree in Computer Science, Engineering, or a related STEM discipline. Excellent debugging and troubleshooting skills. Strong written and verbal communication skills. Self-motivated with the ability to work in a fast-paced, evolving environment. Proficient communication skills in English. Development background in sectors such as banking, finance, or trading, paired with a comprehensive grasp of financial...
Contract Spy
Apr 13, 2026
Duration not stated
Senior Cloud Engineer at Deloitte, London, £Contract Rate
Contract Spy London, UK
  Job Title: Senior Cloud Engineer (contract) Location: London Hybrid. Travel to the London office 3 days a week Duration: 11 months Contract Start Date: ASAP *note client onboarding takes 6 weeks from offer Day Rate: Competitive (Inside IR35)   Deloitte Working with the Deloitte Associate (Contractor) Programme means we can offer you the opportunity to work on a variation of industry and client related projects. Our aim is to retain the best talent and so when your project end date nears our team of Talent Community Advisors will be working with you to look at alternative projects within the firm that suit your experience should you wish to continue with Deloitte.   The Role We are looking for experienced Senior Cloud Engineers to work in the Technology and Transformation Team at Deloitte. You will work with one of our global financial services clients. This position requires a...
Contract Spy
Apr 10, 2026
Duration not stated
Senior Cloud Engineer at Deloitte, London Area, £Contract Rate
Contract Spy London Area, United Kingdom
Deloitte Working with the Deloitte Associate (Contractor) Programme means we can offer you the opportunity to work on a variation of industry and client related projects. Our aim is to retain the best talent and so when your project end date nears our team of Talent Community Advisors will be working with you to look at alternative projects within the firm that suit your experience should you wish to continue with Deloitte.   The Role We are looking for experienced Senior Cloud Engineers to work in the Technology and Transformation Team at Deloitte. You will work with one of our global financial services clients. This position requires a solid engineering experience as per the tech listed below, preferably with Financial Services experience.   Your professional experience   + 10 years Cloud Engineering experience with AWS and GCP Snowflake Cloud Dev Ops Java Python CI/ CD Pipeline Dev Kubernetes...
Contract Spy
Apr 09, 2026
Duration not stated
Senior DevOps & Infrastructure Engineer - Terraform at Red Badger, London, £Contract Rate
Contract Spy London, UK
We currently have an urgent opening for a skilled DevOps Engineer to join us on a contract basis ASAP. This is a major Greenfield platform build for a UK bank. Joining a cross functional team of 14, in the Infrastructure / DevOps phase of building a brand new payments platform from scratch. Required skills: Terraform AWS (some Azure) Kubernetes Secure enterprise platform development experience Account and user policies CI/CD pipeline development 2 days in person working (Monday & Weds - Canary Wharf) START DATE MONDAY 30th MARCH   The role   We're looking for a Senior DevOps / Platform Engineer to join a specific project with a leading UK Bank. Red Badger delivers high quality digital products using a lean delivery process and multidisciplinary, cross-functional teams. The Senior DevOps / Platform Engineer has deep expertise in building and operating digital products,...
Contract Spy
Apr 09, 2026
Duration not stated
Technical Team Lead, Contract at Xcelirate, London, £Contractor Rate
Contract Spy London, UK
Who Are We? Xcelirate develops technologically-advanced platforms which are accessed by thousands of users every minute! We are proud to offer a workplace where the sharpest developers come together to strategically plan and swiftly execute practices which see us maintain our existing market dominance and attain global expansion. We owe our success to our customers who have seen us grow across a decade, and our talented team who have made that growth possible!   What are we looking for? You're a principal-level engineer first. The tech lead title is almost incidental. It just means you're the person the team orbits around, because that's what happens naturally when you're the one who understands the system most deeply and keeps the clearest head under pressure. The 10% that's people management fits inside your engineering work, not alongside it. You hire, you steer, you unblock, but you do it the way a strong engineer does everything: with good...
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