14 integration engineer jobs found in London

SC Cleared Automation QA Tester Rate: £650/day (Outside IR35) Location: 1 day per week on-site in Central London Duration: 4-month contract with high potential to extend Clearance: SC clearance required Overview A product-focused organisation is seeking an experienced QA Engineer to define and deliver a robust test strategy across a high-profile digital service. This role involves shaping testing approaches, supporting CI/CD improvements, and working closely with engineering, product, and user-research teams to ensure high-quality delivery. Key Responsibilities * Define the overall test strategy, covering unit, integration, regression, and non-functional testing. * Design and implement the approach for load and performance testing. * Contribute to CI/CD pipeline improvements to align with testing objectives. * Participate in Scrum ceremonies and wider delivery meetings. * Collaborate with internal stakeholders for approvals and technical engagement. *...

*ML Applied Engineer - 6 month initial contract (temporary) - outside IR35 - London - day rate dependent on experience* We are looking for a senior, hands-on Applied ML Engineer to bridge the gap between classical data science and generative AI. This is an initial 6-month contract, with the possibility of a Phase-2 extension subject to successful delivery of first phase 1. The role is focused on delivery, execution, and technical ownership. You will be brought in to accelerate the product roadmap, transitioning capabilities from experimentation into robust, enterprise-grade systems Embedded directly into our products and client solutions. You will be tasked to create Hybrid AI systems: using LLMs to provide interaction and explanation, grounded strictly by quantitative ML models (cost-to-serve, forecasting, and optimisation). You will own the transition from experimental notebooks to enterprise-grade solutions. Key responsibilities and deliverables: AI & Machine...

AI Engineer - LLM & Agentic Systems London - Hybrid. Circa £500 – £675 per day (and negotiable DOE) Contract (Outside IR35) Mid-level, Senior & Lead. Agentic AI / Machine Learning. Company: Our client is a globally established B2B information and professional services business, operating across multiple high-value industry sectors. They have established data science and machine learning engineering teams already delivering in production, and are now expanding their AI capability significantly across the global organisation. This is a role for people who ship. If you've built LLM-powered systems and agentic workflows that are live in production - not demos, not prototypes - and you want to do that at genuine scale, this is worth applying for. What you'll be working on as an AI Engineer - LLM & Agentic Systems: Designing and building AI agents and agentic workflows - combining LLMs, RAG, reasoning, memory and tool orchestration to...

Title: AI & ML Senior Engineer Role Rate: Up to £600 Per Day (Outside IR35) Contract length: 3 months (Initially) Start date: ASAP Our Client, a rapidly expanding international beauty brand celebrated for innovation and excellence, is seeking a skilled Lead AI & ML Engineer to join their forward-thinking team. Operating across numerous markets worldwide, this company offers a vibrant, collaborative culture that rewards creativity, technical mastery, and strategic thinking. Employees benefit from a stimulating work environment, ongoing development opportunities, and the chance to work at the forefront of AI technology within the beauty industry. Role Overview: As a Lead AI & ML Engineer, you will be instrumental in advancing AI and machine learning capabilities across the organisation. This pivotal role is designed for an ambitious professional eager to influence company-wide strategy, manage cutting-edge projects, and lead a talented team. Your...

Job Title: Senior Software Engineer Location: London (Hybrid / Remote Options) Rate: £550 per day Contract: 6 Months (Outside IR35) The Company A London‑based end‑client is embarking on a major engineering transformation - moving from a fully manual software development lifecycle to a modern, automated, AI‑assisted SDLC. They are looking for a hands‑on Senior Software Engineer to lead this transition and introduce AI‑augmented development practices across the organisation. Roles & Responsibilities You will be responsible for transforming their current delivery model by: Assessing an entirely manual SDLC and designing a modern automated workflow Introducing CI/CD, test automation, code quality guardrails, and deployment automation Embedding AI tools (e.g., Claude, GitHub Copilot, Azure AI) into day‑to‑day engineering Using AI in solo and pair‑programming workflows to build and ship production code Training and upskilling the internal...

Contract Data Engineer / 6 month duration / Outside IR35 / £575 per day / London Market Insurance / We are partnered closely with a London Market Insurance Syndicate, recruiting for a Contract Data Engineer. As Data Engineer you will be responsible for the build / development / enhancement and support the Data ecosystem (Data Platform, Datawarehouse), including but not restricted to Syndicate Data Hub. The Senior Data Engineer will promote good data hygiene across the Syndicate and wider group. Key duties and responsibilities Build / enhance / deliver / support the Data ecosystem, including but not restricted to Syndicate Data Hub: Develop data pipelines leveraging ELT / ETL techniques to ingest, transform and display data following state-of-the-art-approach and internal standards (testing, reconciling and documenting changes is a key part of this role) Design and propose changes to the group data model (with specific focus on Syndicate) Support data scheduled...

OpenText CSA/OO Specialist - OUTSIDE IR35 Operations Orchestration (OO) Engineer - OpenText CSA We are supporting a global enterprise looking for an experienced Operations Orchestration (OO) Engineer to design and refactor automation workflows within a complex infrastructure environment. Key Responsibilities: Design, refactor, and implement OO workflows for VM life cycle automation Adapt existing VMware-based workflows to integrate with HPE VM Essentials APIs Build and validate automation flows (create, modify, power, decommission VMs, storage/network updates) Ensure robust API integrations (REST, authentication, error handling) Deliver tested workflows, documentation, and validation evidence Required Experience: Strong hands-on experience with OpenText CSA/Operations Orchestration (OO) Proven background in workflow refactoring and automation engineering Solid API integration skills (REST) Experience with virtualisation platforms and VM life cycle automation...

Senior .NET / Full Stack Developer – Hybrid – £600/day Outside IR35 | C# | Azure | Event-Driven Systems | Payments | API-Driven We have a unique opportunity for a Senior .NET / Full Stack Developer to join a payments company. As a Senior .NET / Full Stack Developer , you’ll play a key role in building and scaling a high-throughput payments platform as the business enters its next phase of growth. This includes launching new products, enabling new partner integrations, and expanding a platform that already powers multiple live financial services products used globally. You’ll be building on top of a modern, cloud-native platform built with .NET and Azure , designed around API-first architecture and event-driven microservices . The platform supports complex payment flows, partner integrations, and high-volume transaction processing. This is a hands-on senior engineering role where you’ll contribute to architectural discussions, drive engineering best...

We're working with one of the UK’s fastest-growing data consultancies delivering high-impact transformation projects across the public sector on this exciting opportunity. This is a high-impact contract for a Data Architect to spearhead complex healthcare data programmes using the Palantir Foundry platform. You will lead the design of scalable, end-to-end data solutions that directly improve NHS delivery and patient outcomes through advanced data integration and modeling. The Role Lead the architectural design and implementation of end-to-end data solutions specifically on the Palantir Foundry (NHS Foundry) platform. Drive data integration, complex modeling, and platform design to handle large-scale healthcare datasets. Translate high-level business challenges into robust technical architectures, bridges the gap between stakeholders and engineers. Provide expert architectural guidance across data platforms, pipelines, and automated workflows to ensure...

Data Migration Architect - Active SC, HL7, Healthcare Up to £600 per day - Outside IR35 South / Hybrid 6 months My client is an instantly recognisable consultancy who require a Data Migration Architect with Active SC clearance to join a business-critical programme. Key Responsibilities: Own the data migration strategy and architecture - defining scope, principles, sequencing, cutover patterns, and ensuring alignment with integration and coexistence approaches. Define what data migrates vs. archives and sets rules for clinical safety, governance, quality, validation, cleansing, and exception handling. Consume and validate analytical inputs (profiling, quality assessments, READ↔SNOMED impacts) to identify migration‑specific risks. Design source‑to‑canonical mappings and target data representations, covering DMICP, archives, staging environments, and downstream consumers. Provide architectural oversight during development, ensuring engineers implement the design...

Data Migration Architect - Active SC, HL7, Healthcare Up to £600 per day - Outside IR35 South/Hybrid 6 months My client is an instantly recognisable consultancy who require a Data Migration Architect with Active SC clearance to join a business-critical programme. Key Responsibilities: Own the data migration strategy and architecture - defining scope, principles, sequencing, cutover patterns, and ensuring alignment with integration and coexistence approaches. Define what data migrates vs. archives and sets rules for clinical safety, governance, quality, validation, cleansing, and exception handling. Consume and validate analytical inputs (profiling, quality assessments, READ'sNOMED impacts) to identify migration-specific risks. Design source-to-canonical mappings and target data representations, covering DMICP, archives, staging environments, and downstream consumers. Provide architectural oversight during development, ensuring engineers implement the design accurately...

AI Engineer (Contract) – £500/day Outside IR35 📍 Canary Wharf, London (3 days onsite) 🇬🇧 UK-based applicants only We’re looking for experienced AI Engineers who think holistically, automate relentlessly, and know how to turn modern AI capabilities into production-grade, high-impact applications . Our AI organisation is building real-world AI products that deliver business value at speed. This role is ideal for seasoned engineers who combine strong software engineering fundamentals with a pragmatic, hands-on approach to AI tooling and infrastructure. What you’ll be doing Designing, building, and maintaining production-grade AI applications using modern engineering practices (CI/CD, testing, observability, cloud-native design). Developing reusable AI platforms and tools (e.g. conversational bots, AI-powered search, unstructured data processing, GenAI solutions). Working in cross-functional, embedded teams with business stakeholders to rapidly deliver...

Backend Engineer – C#, .Net, Azure | Payments Financial Services | £600/day outside IR35| Hybrid We’re partnering with a leading financial services firm in the FinTech payment space that’s investing heavily in modernising its technology stack. With a new tech leader driving innovation, the focus is on building in-house systems that are scalable, reliable, and future-ready. About the Role Backend Engineer position You’ll take ownership of building and enhancing key client-facing applications using C#, .Net, Azure . As a Backend Engineer you will have tried and tested experience joining a FinTech/Financial Services company at the stage of 0-50 employees. This company is looking to grow significantly, building out 4 new engineering teams include Seniors and Team Leads. The work spans complex financial products, so you’ll have the chance to engage with both technical and business stakeholders across the UK. 💰 Paying up to £600 per day (Outside IR35) 🏢 1–2 days...

Senior Java Developer Location: London, London, United Kingdom Rate: £600 per day (Outside IR35) Work Model: Hybrid, 2 days on site (Central London) Contract type: Contract We are seeking a Senior Java Developer to join a modern engineering team building high-performance, cloud-native services. You will take ownership of Back End design and delivery, mentor engineers, and help elevate engineering standards. A key focus of this role is accelerating team capability with GitHub Copilot-we are looking for a genuine enthusiast who uses it daily, understands the newest features, and can coach others to use it safely and effectively. Key Responsibilities * Design, build, and optimise microservices and APIs using Java 21. * Drive best practice in code quality, testing, secure coding, and performance tuning. * Build and integrate with NoSQL data stores and event-driven components where appropriate. * Deliver cloud solutions on Azure and/or AWS, including CI/CD and...