64 product engineer jobs found in London, greater london

Senior Full Stack Product Engineer (.NET/AI) - SC Clearance Eligible 6 Month Contract | Outside IR35 | Extension Likely We're looking for an experienced Senior Product Engineer/Senior Software Engineer to join a team building secure, modern software within a highly regulated environment. This role is ideal for an engineer who combines strong full stack development skills with a product engineering mindset and has practical experience using AI to accelerate software development . You'll be working on sophisticated, security-focused platforms where resilience, scalability and secure engineering principles are paramount. Experience designing or enhancing highly secure messaging or communications systems would be particularly valuable. Essential Requirements Eligible to obtain SC Clearance (must have the right to undergo UK Security Check clearance) Proven commercial experience using AI-assisted development tools (eg GitHub Copilot, ChatGPT, Claude, Cursor or...

Senior Data Quality Engineer £500-525 per day | Outside IR35 | Initial contract to December 2026| Hybrid (London) Leading Financial Services business is looking to bring in a Senior Data Quality Engineer to join its Finance Data & Reporting Product Team. This is a hands-on contract focused on data quality, testing, reconciliation and automation across a modern cloud data platform. Working across the full data life cycle, you will validate finance data from source systems through to Snowflake, dbt and Power BI, while enhancing an existing data quality framework and driving improvements in test automation and quality engineering practices. Key Responsibilities Design and execute end-to-end data quality, validation and reconciliation testing. Validate data across source systems, Snowflake, dbt transformations and Power BI reporting. Enhance and extend the existing dbt Core testing framework. Build automated data quality, regression and reconciliation checks....

Data Engineer - AI Data Platform - Outside IR35 - Remote The Data Engineer will be responsible for building the core data infrastructure underpinning next-generation AI products, integrating enterprise and third-party data sources, and developing scalable data services to support AI-driven applications. Data Engineer - AI Data Platform - Key Skills: - Proven experience building scalable enterprise data platforms and data infrastructure. - Must have strong understanding of AI/LLM data architectures and enabling AI agents to retrieve and prioritise enterprise data. - Investment Management background preferred - Strong Azure experience, including Azure Service Bus and cloud-native data services. - Experience developing MCP registries, connectors, and data integration frameworks. - Strong experience integrating third-party data providers (eg S&P or similar external data sources). - Experience designing universal data layers to support AI, analytics, and enterprise data...

Senior JavaScript Engineer (Machine Learning) contract - London - Outside IR35 (£575 per day) Leading Ecommerce client now requires a talented Senior JavaScript engineer, with personalisation/ML experience, to deliver an innovative greenfield project ensuring that the business can deliver improved products, in a more efficient manner. The role: Working as an integral part of an agile team contributing towards the planning and development of systems/platforms. Collaborating with engineers, product owners and business analysts to define solutions, ways of working and share knowledge across the department. Reviewing code and providing support to members of your team. Designing and building Node.js/GraphQL APIs. Key requirements: Senior level experience in modern JavaScript, Typescript, Node.js, React Strong experience with Azure, including SQS and ML, Python and SQL Experience with personalisation or recommendation engineers a plus The role...

Responsibilities We are seeking an experienced Lead Mobile Engineer to support our clients in the strategy, development, and execution of mobile applications across platforms. This role will have different responsibilities depending on the state of the projects which may be: Leading a team of talented engineers and collaborate with product, design, and other cross-functional teams to deliver world-class mobile experiences to our users Propose technical state of the art architectures for a new app or the evolution of a current application Leadership & Strategy Serve as a mobile technology expert and advocate across the company. Knowledge of the state of the art technically Monitor market trends and mobile product behaviors (e.g., analyzing average time spent on mobile purchase journeys in retail apps). Build, lead, and mentor a high-performing mobile engineering team. Drive best practices in coding, architecture, security, and performance across mobile...

Senior JavaScript Engineer (Machine Learning) contract - London - Outside IR35 (£575 per day) Leading Ecommerce client now requires a talented Senior JavaScript engineer, with personalisation / ML experience, to deliver an innovative greenfield project ensuring that the business can deliver improved products, in a more efficient manner. The role: • Working as an integral part of an agile team contributing towards the planning and development of systems/platforms. • Collaborating with engineers, product owners and business analysts to define solutions, ways of working and share knowledge across the department. • Reviewing code and providing support to members of your team. • Designing and building Node.js/GraphQL APIs. Key requirements: • Senior level experience in modern JavaScript, Typescript, Node.js, React • Strong experience with Azure, including SQS and • ML, Python and SQL • Experience with personalisation or recommendation...

Kotlin Developer (SC Cleared) Outside IR35 We're looking for experienced Kotlin Developers to join a high-profile national digital programme, developing secure, scalable software solutions as part of a major government digital transformation initiative. You'll be working within multidisciplinary Agile teams alongside Product Managers, Designers and Delivery Managers to build modern, user-focused applications using Kotlin, contributing to high-quality digital products that will be used at scale. We're particularly interested in developers who are passionate about Android outside of work. Whether that's building personal Android applications, contributing to open-source projects, experimenting with new Kotlin frameworks, or maintaining an active GitHub portfolio, we'd love to hear about it. Due to the nature of the programme, active SC Clearance is required. Key Responsibilities Develop secure, scalable applications using Kotlin. Write clean, maintainable and...

Kotlin Developer (SC Cleared) Outside IR35 We 're looking for experienced Kotlin Developers to join a high-profile national digital programme, developing secure, scalable software solutions as part of a major government digital transformation initiative. You 'll be working within multidisciplinary Agile teams alongside Product Managers, Designers and Delivery Managers to build modern, user-focused applications using Kotlin, contributing to high-quality digital products that will be used at scale. We 're particularly interested in developers who are passionate about Android outside of work. Whether that 's building personal Android applications, contributing to open-source projects, experimenting with new Kotlin frameworks, or maintaining an active GitHub portfolio, we 'd love to hear about it. Due to the nature of the programme, active SC Clearance is required. Key Responsibilities Develop secure, scalable applications using Kotlin. Write...

Senior Operations Lead – Service Operations Transformation (Contract) Toyota Connected Europe (TCEU) · London (Hybrid) · Contract – Initial 3 months (extendable) Outside IR35 About the role: Our Operations function is at an important stage of its evolution. The department has an ambitious FY2026 plan to deliver: intelligent automation, AIOps, process excellence, stronger governance, workforce transformation into SRE/ARE-aligned engineering, and a new “Ops as a Product” operating model. To get there, we first need to stabilise and strengthen the current team's standards, ownership and ways of working. We are looking for an experienced, hands-on Senior Operations Lead to join on an initial 3-month contract to do two things in parallel: stabilise the current team, resetting standards, ownership and customer confidence, and begin its transformation into a modern, engineering-led operations capability. The initial term is 3 months, with the possibility of extension...

Senior Operations Lead – Service Operations Transformation (Contract) Toyota Connected Europe (TCEU) · London (Hybrid) · Contract – Initial 3 months (extendable) Outside IR35 About the role: Our Operations function is at an important stage of its evolution. The department has an ambitious FY2026 plan to deliver: intelligent automation, AIOps, process excellence, stronger governance, workforce transformation into SRE/ARE-aligned engineering, and a new “Ops as a Product” operating model. To get there, we first need to stabilise and strengthen the current team's standards, ownership and ways of working. We are looking for an experienced, hands-on Senior Operations Lead to join on an initial 3-month contract to do two things in parallel: stabilise the current team, resetting standards, ownership and customer confidence, and begin its transformation into a modern, engineering-led operations capability. The initial term is 3 months, with the...

BI/Data Engineer As a BI/Data Engineer, you will provide specialist technical expertise to develop, enhance and support our outbound bordereaux reporting solution. Working closely with the Actuarial, Product, Data & MI teams, you will improve data quality, implement new reporting requirements and automate manual processes to deliver accurate, timely and efficient bordereaux submissions to our capacity providers. You will take ownership of understanding the existing solution, analysing business requirements, developing robust data validation processes and delivering scalable reporting solutions while ensuring knowledge is documented and transferred at the conclusion of the engagement. Essential Experience Proven experience developing bordereaux reporting solutions within the insurance industry. Strong experience as a BI Developer or Data Engineer. Hands-on experience working with the Acturis Back End database. Advanced SQL skills including stored procedures, views,...

Leading Ecommerce client now requires a Full Stack JavaScript Developer who is proficient in front and Back End development. (React/TypeScript/Node.js). This role will design and build the foundations of which our clients innovative web and mobile applications run on. Key Responsibilities: Working as an integral part of an agile team contributing towards the planning and development of systems/platforms. Collaborating with engineers, product owners and business analysts to define solutions, ways of working and share knowledge across the department. Reviewing code and providing support to members of your team. Working on client-facing applications in react/next.js Designing and building Node.js/GraphQL APIs. Key Requirements: Senior level experience in modern JavaScript, written with Typescript, Node.js, React, Next.js etc. Previous experience using Stripe & Salesforce is highly desirable. Experience designing and developing APIs/microservices....

Data Engineer - AI Data Platform - Outside IR35 - Remote The Data Engineer will be responsible for building the core data infrastructure underpinning next-generation AI products, integrating enterprise and third-party data sources, and developing scalable data services to support AI-driven applications. Data Engineer - AI Data Platform - Key Skills: - Proven experience building scalable enterprise data platforms and data infrastructure. - Must have strong understanding of AI/LLM data architectures and enabling AI agents to retrieve and prioritise enterprise data. - Investment Management background preferred - Strong Azure experience, including Azure Service Bus and cloud-native data services. - Experience developing MCP registries, connectors, and data integration frameworks. - Strong experience integrating third-party data providers (eg S&P or similar external data sources). - Experience designing universal data layers to support AI, analytics, and enterprise data...

Senior Software Engineer - Kotlin £550-£650 per day | Outside IR35 Hybrid | London (3 days onsite) A leading UK financial services organisation is seeking a Senior Software Engineer to play a central role in a large-scale platform transformation programme. The business is rebuilding a critical part of its digital infrastructure to support a broad range of transaction methods and channels across both in-person and digital environments. This is hands-on Back End engineering at scale, with real ownership and direct exposure to architecture decisions from day one. Key Responsibilities as a Senior Software Engineer: Design and build Kotlin Back End services for a new payments platform Own the architecture and design of key components, taking high-level requirements and turning them into structured, deliverable backlogs Write clean, well-tested, production-ready code that the team can rely on Work closely with Product and Engineering to break down complex...

£650-700p/d | Outside IR35 | 6 months | Hybrid We're supporting a well-funded London AI start-up that's building machine learning products to solve complex, real-world problems at scale. They're entering an exciting growth phase and are looking for an experienced Machine Learning Engineer to help shape the next generation of the platform. This is an opportunity to join a highly technical team where you'll have genuine ownership over production ML systems, working closely with software engineers, data engineers and product teams to take models from research through to deployment. Key Responsibilities Designing, training and deploying machine learning models into production Building scalable ML pipelines and improving existing model performance Working alongside Data and Software Engineers to integrate models into customer-facing products Researching and evaluating new ML techniques where appropriate Monitoring model performance and driving continuous improvements...

Senior Software Engineer - Kotlin & Coroutines. £500/day LTD CO OUTSIDE IR35. 100% REMOTE. An interest in AI (Agentic AI, AI tooling, Claude, Codex or Co-Pilot) highly advantageous but not essential. We are looking for a Senior Backend Engineer (Kotlin & Coroutines essential) to build the integrations that connect AI companion with senior care and hospital software platforms. In this role, you will design, build, and maintain robust Back End services and integrations that enable seamless data exchange between the company and partner systems. You'll take end-to-end ownership of integration projects-from discovery and architecture through implementation, deployment, and continuous improvement. Key Responsibilities for the Kotlin & Coroutines Developer are: Design, develop, and maintain integrations between my clients platform and third-party healthcare and senior care software systems. Build scalable, secure, and maintainable Back End services and APIs using...

Data Engineer - Data Migration Programme | London (Hybrid) | Contract - up to £500/d (outside IR35) Are you a Data Engineer with hands-on experience delivering enterprise data migration solutions? Our client - a fast-scaling European digital infrastructure provider with 100+ sites across the continent - is looking for a Data Engineer to join a major transformation programme consolidating multiple operational systems into a single target platform. You'll be at the centre of the migration workstream: building the pipelines, transformation logic, and validation frameworks that move data from legacy systems into the new target operating platform - working closely with the Data Workstream Lead, business SMEs, and application teams. What you'll be doing: Designing and building ETL/ingestion pipelines using Microsoft Fabric (Data Factory, Pipelines, Lakehouse, Notebooks) or equivalent Azure tooling Implementing source-to-target mappings and transformation logic for the...

Senior / Lead Software Engineer (Java) - o/s IR35 - Hybrid (2 dpw in office) A large retailer urgently seeks an experienced Senior Software Development Engineer to take a lead role in the design, development and support of scalable, cloud-native Java applications Working in an Agile, DevOps environment, you'll build microservices, APIs and event-driven solutions while collaborating with engineers, data scientists and operations teams to deliver high-quality software. The role is outside IR35 and requires 2 days per week in the office. Responsibilities include: Design and develop scalable Java applications and microservices Build and maintain cloud-native solutions using Azure Improve system performance, reliability and scalability Develop APIs and event-driven services with Kafka Mentor engineers and promote engineering best practices Support software throughout its full lifecycle in a CI/CD environment Essential Experience Experience of designing and...

Contract: EUC Build Engineer Start Date: Aug 2026 Duration: 6 months Location: Hybrid - on site in London 2 days a week Rate: Negotiable (Deemed outside IR35) Reference: 20537 Contract for an experienced EUC Engineer to work on a large enterprise client project responsible for VDI activities. YOU MUST BE ABLE TO SHOW YOU HAVE OMNISSA HORIZON EXPERTISE, MS Intune, AD, Apple Stack. AND Must have worked within large Enterprise Financial Services environments. Key Responsibilities Build and configure Omnissa Horizon desktop pools, master images and App Volumes packages. Build and configure Igel thin clients, including repurposing existing HP laptops. Support pilot deployment waves hands-on, including user readiness and issue resolution. Execute integration tests; document deviations and remediation actions. Required Skills and Qualifications Minimum 3 years EUC engineering with hands-on experience in Omnissa Horizon. Working...

Contract: EUC Build Engineer Start Date: Aug 2026 Duration: 6 months Location: Hybrid - on site in London 2 days a week Rate: Negotiable (Deemed outside IR35) Reference: 20537 Contract for an experienced EUC Engineer to work on a large enterprise client project responsible for VDI activities. YOU MUST BE ABLE TO SHOW YOU HAVE OMNISSA HORIZON EXPERTISE, MS Intune, AD, Apple Stack. AND Must have worked within large Enterprise Financial Services environments. Key Responsibilities Build and configure Omnissa Horizon desktop pools, master images and App Volumes packages. Build and configure Igel thin clients, including repurposing existing HP laptops. Support pilot deployment waves hands-on, including user readiness and issue resolution. Execute integration tests; document deviations and remediation actions. Required Skills and Qualifications Minimum 3 years EUC engineering with hands-on experience in Omnissa Horizon. Working...