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53 senior data engineer jobs found

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Duration not stated senior data engineer Greater London
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Contract Spy
Jul 31, 2026
Duration not stated
Senior Data Engineer (Python/ETL/SQL) at e-Synergy, London/Remote, £Flexible Rate
Contract Spy Hybrid (London, UK)
Senior Data Engineer (Python / ETL / SQL) Associate | Flexible rate | Remote Overview We're supporting a large-scale Workday HCM implementation and are looking for several experienced Data Engineers to join the programme immediately. This is a hands-on role working alongside senior stakeholders and delivery partners to support data migration, transformation and integration activities, helping ensure the successful delivery of a critical HR transformation programme.   What you'll be doing Supporting data migration and transformation activities for a Workday HCM implementation Designing and building data pipelines and ETL processes Extracting, cleansing, transforming and loading data into Workday Working closely with business, HR and technology stakeholders to resolve data quality challenges Supporting data validation, reconciliation and testing activities Collaborating with implementation partners and...
Contract Spy
Aug 06, 2026
Duration not stated
Senior Full Stack Data Quality Engineer at Tokio Marine, London St Botolph, £Contract Rate (Outside IR35)
Contract Spy London, UK
Senior Full Stack Data Quality Engineer Assignment type: Outside IR35   The supplier will be engaged to provide specialist hands-on data quality engineering services to the Finance & Data Reporting Product Team across TMHCC’s modern data platform testing, data quality engineering, and test automation.   The engagement is focused on delivering agreed testing and automation outcomes across defined operational assurance priorities and initiative delivery outcomes. The supplier will validate data across the full data lifecycle, including ingestion, transformation, data lake, data warehouse, reporting and BI, APIs, metadata, lineage, and reconciliation.   Assignment Tasks / Deliverables   Full Stack Data Quality Engineering: Design and execute data quality testing across ingestion, transformation, warehouse, reporting/BI, APIs, metadata, lineage, and reconciliation layers. Validate Snowflake data lake and data...
Contract Spy
Jul 30, 2026
Duration not stated
Senior Full Stack Data Quality Engineer at Tokio Marine, London St Botolph, £Contract Rate (Outside IR35)
Contract Spy London, UK
Senior Full Stack Data Quality Engineer Assignment type: Outside IR35   The supplier will be engaged to provide specialist hands-on data quality engineering services to the Finance & Data Reporting Product Team across TMHCC’s modern data platform testing, data quality engineering, and test automation.   The engagement is focused on delivering agreed testing and automation outcomes across defined operational assurance priorities and initiative delivery outcomes. The supplier will validate data across the full data lifecycle, including ingestion, transformation, data lake, data warehouse, reporting and BI, APIs, metadata, lineage, and reconciliation.   Assignment Tasks / Deliverables   Full Stack Data Quality Engineering: Design and execute data quality testing across ingestion, transformation, warehouse, reporting/BI, APIs, metadata, lineage, and reconciliation layers. Validate Snowflake data lake and data...
Contract Spy
Aug 12, 2026
Duration not stated
Senior Fullstack Mobile Engineer at Mindera, London Pimlico, £Competitive Contract Rate
Contract Spy Pimlico, London, UK
We are looking for a Senior Fullstack Mobile Engineer with a strong emphasis on backend architecture to join the team developing a greenfield platform. You will own the end-to-end technical delivery of features, with the majority of your time focused on designing and building a robust, secure, and scalable backend using NestJS, Node.js and TypeScript . On the mobile side, you will contribute to feature integration and deployment within a React Native and Expo environment, ensuring seamless delivery across the full technology stack. The platform operates within a large enterprise technology ecosystem, so this role requires a senior engineer who is comfortable driving technical discussions, making architectural decisions, aligning infrastructure, and collaborating with neighbouring teams working across different technology stacks, including Kotlin and Spring Boot .   This role requires onsite time in Pimlico and sits inside IR35.   Backend...
Contract Spy
Aug 12, 2026
Duration not stated
Senior Cloud Engineer at Deloitte, London, £Contract Rate
Contract Spy London, UK
Job description   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...
Contract Spy
Aug 11, 2026
Duration not stated
AI Solutions Architect at Keyrus, London, £Contract Option
Contract Spy London, UK
Why Keyrus, Why Now! Keyrus is an international group of 2,800 consultants and experts across 28 countries, built on a single conviction: AI does not transform businesses. Architected intelligence does. For more than 30 years, we have been building the data foundations that make intelligent systems work — designing the Operating System of the intelligent enterprise, where intelligence is embedded into the core of business processes to create sustainable value: we operationalise intelligence. AI does not replace humans. It repositions us to a place no system can follow: understanding, deciding, designing, and creating. At Keyrus, you will not just develop skills — you will develop judgment. Your expertise sharpens with every system you architect, every client challenge you solve, and every deployment that compounds on the last. Over time, you grow into one of the rarest professionals of the intelligence era: someone who bridges data, AI, and human...
Contract Spy
Aug 11, 2026
Duration not stated
kdb+ Contractor (Capital Markets) at Data Intellect, London, £Contract Rate
Contract Spy London, UK
Company Description Join the world’s largest kdb+ Consultancy where every query matters, every millisecond counts and every system you build shapes the future of data-driven finance. At Data Intellect , we thrive on solving complex data challenges in high-stakes environments. We’re a team of engineers, problem-solvers and collaborators who believe in pushing boundaries, not egos. If you're a proficient kdb+ developer ready to lead, innovate and make an impact, we want to hear from you. Job Description As a Senior kdb+ Engineer at [DI] you’ll be at the forefront of delivering high-performance, scalable solutions for some of the world’s most data-intensive financial institutions. You’ll: Lead technical delivery on client projects, setting the standard for quality and performance. Design and implement robust kdb+ architectures that handle billions of rows of time-series data. Collaborate with quants, traders, and analysts to...
Contract Spy
Aug 10, 2026
Duration not stated
Senior Software Engineer at Softwire, London Area, £500-£600 per day (Outside IR35)
£500 - £600 per day
Contract Spy London Area, United Kingdom
Senior Software Engineer - Outside IR35 - Contract (Energy)   About the role   We are looking for a Senior Software Engineer (ideally with some Data Engineering experience) to join our client team in the energy trading sector.   End date is not certain, but likely to be December 2026 or early Q1 2027.   We are looking for experience in the following technologies:   Microsoft Azure ecosystem Understanding of networking & security options in Microsoft Azure Infrastructure-as-code (preferably Bicep) Python   Experience in the below would also be beneficial:   Azure DevOps (pipelines) SQL   We generally spend 2 days per week on-site with the client in central London (Monday & Thursday).   £500-600 per day outside IR35   Start date: 10/08/2026 End date: December 2026 or early Q1 2027   About Softwire  ...
Contract Spy
Aug 10, 2026
Duration not stated
Platform Security Engineer at Xoriant, London Canary Wharf/Remote, £Contract Rate
Contract Spy Hybrid (Canary Wharf, London, UK)
Platform Security Engineer Canary Wharf, UK Hybrid (2 days a week) Long Term Contact (Inside IR35)     Required Skills & Experience Technical • 3–5 years of experience in DevSecOps, platform security, or information security engineering roles. • Hands-on experience building SCBs for enterprise DevOps and collaboration tools (Bitbucket, Bamboo, Jenkins, Nexus, Jira, Confluence, SonarQube, Mend, or equivalent). • Strong working knowledge of NIST CSF v2.0, OWASP Security Controls, and ISO 27001/27002. • Experience conducting configuration assurance reviews, control gap assessments, and risk-based remediation planning. • Familiarity with GDPR, NIS2, DORA, or equivalent regulatory frameworks and their impact on platform configuration. • Experience writing Incident Response Playbooks or security runbooks aligned to NIST or SANS frameworks.   Delivery & Communication...
Contract Spy
Aug 10, 2026
Duration not stated
Linux Engineering Lead at Xoriant, London Canary Wharf, £Contract Rate
Contract Spy Canary Wharf, London, UK
Senior Red Hat Systems Engineer / Linux Engineering Lead Canary Wharf, UK Hybrid (2 days a week) Long Term Contract (Inside IR35)   Professional Summary Expert in end-to-end Linux lifecycle management , including patching, OS upgrades, image creation, and large-scale deployments. Extensive experience with Red Hat Satellite , Ansible Automation Platform , and enterprise tooling to automate infrastructure, reduce operational overhead, and improve system reliability. Strong background in performance engineering, vulnerability management, disaster recovery, and business continuity , with hands-on expertise in VMware and AWS architecture , including networking, storage, and compute optimization. Proven ability to lead initiatives, troubleshoot complex cross-domain issues (OS, network, virtualization, cloud), and collaborate effectively with DevOps, Security, and Application teams.   Core Technical Expertise Linux / Red Hat...
Contract Spy
Aug 10, 2026
Duration not stated
Technical Team Lead at Xcelirate, London, £Competitive 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
Aug 10, 2026
Duration not stated
Principal Engineer at Mindera, Central London, £Contract Rate (Outside IR35)
Contract Spy London, UK
We are currently looking for an experience Principal Engineer to join us on a contract basis. This is a hybrid position and will require 3 days per week on client site in Central London. Requirements Role responsibilities:   Define and drive technical strategy, architecture, and engineering standards across the Personalisation domain Design and deliver scalable systems supporting personalisation, search, recommendations, and ML-powered features Partner closely with Product, Data Science, and Design to deliver customer-centric solutions Lead and influence technical decision-making across multiple teams and platforms Mentor and support senior engineers, helping to raise the overall engineering capability Improve engineering quality, reliability, and productivity through best practices, tooling, and platform enhancemen   Who you are:   An experienced technical leader with a strong background in Java/Python...
Contract Spy
Aug 07, 2026
Duration not stated
Linux Engineering Lead at Xoriant, London Canary Wharf, £Contract Rate
Contract Spy Canary Wharf, London, UK
Senior Red Hat Systems Engineer / Linux Engineering Lead Canary Wharf, UK Hybrid (2 days a week) Long Term Contract (Inside IR35)   Professional Summary Expert in end-to-end Linux lifecycle management , including patching, OS upgrades, image creation, and large-scale deployments. Extensive experience with Red Hat Satellite , Ansible Automation Platform , and enterprise tooling to automate infrastructure, reduce operational overhead, and improve system reliability. Strong background in performance engineering, vulnerability management, disaster recovery, and business continuity , with hands-on expertise in VMware and AWS architecture , including networking, storage, and compute optimization. Proven ability to lead initiatives, troubleshoot complex cross-domain issues (OS, network, virtualization, cloud), and collaborate effectively with DevOps, Security, and Application teams.   Core Technical Expertise Linux / Red Hat...
Contract Spy
Aug 06, 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
Aug 05, 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
Aug 04, 2026
Duration not stated
kdb+ Contractor (Capital Markets) at Data Intellect, London, £Contract Rate
Contract Spy London, UK
Company Description Join the world’s largest kdb+ Consultancy where every query matters, every millisecond counts and every system you build shapes the future of data-driven finance. At Data Intellect , we thrive on solving complex data challenges in high-stakes environments. We’re a team of engineers, problem-solvers and collaborators who believe in pushing boundaries, not egos. If you're a proficient kdb+ developer ready to lead, innovate and make an impact, we want to hear from you. Job Description As a Senior kdb+ Engineer at [DI] you’ll be at the forefront of delivering high-performance, scalable solutions for some of the world’s most data-intensive financial institutions. You’ll: Lead technical delivery on client projects, setting the standard for quality and performance. Design and implement robust kdb+ architectures that handle billions of rows of time-series data. Collaborate with quants, traders, and analysts to...
Contract Spy
Aug 04, 2026
Duration not stated
AI Solutions Architect at Keyrus, London, £Contract Option
Contract Spy London, UK
Why Keyrus, Why Now! Keyrus is an international group of 2,800 consultants and experts across 28 countries, built on a single conviction: AI does not transform businesses. Architected intelligence does. For more than 30 years, we have been building the data foundations that make intelligent systems work — designing the Operating System of the intelligent enterprise, where intelligence is embedded into the core of business processes to create sustainable value: we operationalise intelligence. AI does not replace humans. It repositions us to a place no system can follow: understanding, deciding, designing, and creating. At Keyrus, you will not just develop skills — you will develop judgment. Your expertise sharpens with every system you architect, every client challenge you solve, and every deployment that compounds on the last. Over time, you grow into one of the rarest professionals of the intelligence era: someone who bridges data, AI, and human...
Contract Spy
Aug 03, 2026
Duration not stated
Senior Software Engineer at Softwire, London Area, £500-£600 per day (Outside IR35)
£500 - £600 per day
Contract Spy London Area, United Kingdom
Senior Software Engineer - Outside IR35 - Contract (Energy)   About the role   We are looking for a Senior Software Engineer (ideally with some Data Engineering experience) to join our client team in the energy trading sector.   End date is not certain, but likely to be December 2026 or early Q1 2027.   We are looking for experience in the following technologies:   Microsoft Azure ecosystem Understanding of networking & security options in Microsoft Azure Infrastructure-as-code (preferably Bicep) Python   Experience in the below would also be beneficial:   Azure DevOps (pipelines) SQL   We generally spend 2 days per week on-site with the client in central London (Monday & Thursday).   £500-600 per day outside IR35   Start date: 10/08/2026 End date: December 2026 or early Q1 2027   About Softwire  ...
Contract Spy
Aug 03, 2026
Duration not stated
Linux Engineering Lead at Xoriant, London Canary Wharf, £Contract Rate
Contract Spy Canary Wharf, London, UK
Senior Red Hat Systems Engineer / Linux Engineering Lead Canary Wharf, UK Hybrid (2 days a week) Long Term Contract (Inside IR35)   Professional Summary Expert in end-to-end Linux lifecycle management , including patching, OS upgrades, image creation, and large-scale deployments. Extensive experience with Red Hat Satellite , Ansible Automation Platform , and enterprise tooling to automate infrastructure, reduce operational overhead, and improve system reliability. Strong background in performance engineering, vulnerability management, disaster recovery, and business continuity , with hands-on expertise in VMware and AWS architecture , including networking, storage, and compute optimization. Proven ability to lead initiatives, troubleshoot complex cross-domain issues (OS, network, virtualization, cloud), and collaborate effectively with DevOps, Security, and Application teams.   Core Technical Expertise Linux / Red Hat...
Contract Spy
Aug 03, 2026
Duration not stated
Technical Team Lead at Xcelirate, London, £Competitive 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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