20 integration engineer jobs found

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....

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...

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...

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...

Senior AI Engineer £700 p/d (Outside IR35) - Hybrid, Central London A leading Asset Management firm in Central London is seeking a highly technical, delivery‑focused AI Engineer to accelerate the build‑out of AI automation across critical internal operations. We're looking for someone who can combine deep engineering ability, strong systems thinking, and the ability to listen, understand, and translate stakeholder needs into reliable AI‑powered workflows. You'll be the first specialist within a new AI & Data function, owning solutions end‑to‑end and setting engineering standards from day one. What You'll do: Map human‑heavy processes and identify automation opportunities. Build robust, well‑structured AI systems using ChatGPT Enterprise. Implement retrieval workflows, decision trees, guardrails, and scalable prompt patterns. Develop high‑value internal copilots and productivity tools. Integrate AI workflows with HR, CRM, and other internal...

Senior AI Engineer £700 p/d (Outside IR35) - Hybrid, Central London A leading Asset Management firm in Central London is seeking a highly technical, delivery‑focused AI Engineer to accelerate the build‑out of AI automation across critical internal operations. We're looking for someone who can combine deep engineering ability, strong systems thinking, and the ability to listen, understand, and translate stakeholder needs into reliable AI‑powered workflows. You'll be the first specialist within a new AI & Data function, owning solutions end‑to‑end and setting engineering standards from day one. What You'll do: Map human‑heavy processes and identify automation opportunities. Build robust, well‑structured AI systems using ChatGPT Enterprise. Implement retrieval workflows, decision trees, guardrails, and scalable prompt patterns. Develop high‑value internal copilots and productivity tools. Integrate AI workflows with HR, CRM, and other internal...

Lead .NET/Full Stack Developer - Hybrid - £700/day Outside IR35 | C# | Azure | Event Driven Systems | Payments | API Driven We have a unique opportunity for a Lead .NET/Full Stack Developer to join a payments company. As the Lead .NET/Full Stack Developer , you’ll play a key role in shaping 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 technical role where you’ll help drive engineering best practices, contribute to architectural decisions, and mentor...

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...

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...

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...

AI ENGINEER | £550 - £650 We're working with a leading innovator in the Higher Education sector on this exciting opportunity. Are you ready to build the future of academic technology? We are looking for a high-calibre AI Engineer to lead the charge in developing transformative LLM-based solutions and conversational agents within a dynamic, intellectual environment. This is a chance to leverage cutting-edge AWS infrastructure to revolutionise how students and faculty interact with information. The Role Design and develop sophisticated conversational agents and LLM-based assistants tailored for the education sector. Lead the creation of AI proof-of-concepts (POCs) using AWS Bedrock and Microsoft Copilot Studio. Implement robust prompt engineering strategies and fine-tune foundation models to ensure accuracy and relevance. Collaborate closely with non-technical stakeholders to co-create AI solutions that address real-world academic challenges. Ensure all...

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...

Lead Solution Architect - Cloud-Native Platform (Azure) - Outside IR35 - Hybrid London/Hybrid | Bespoke Build | End-to-End Ownership We're building a modern, cloud-native platform from the ground up - and need a hands-on Solution Architect to lead the design and take it through delivery. The Role Ownership of the end-to-end architecture for a new enterprise platform supporting complex business workflows and decisioning. Design scalable, secure, cloud-native solutions on Microsoft Azure Define application, data, integration and security architecture Lead creation of HLDs, LLDs, data models and interface designs Translate business requirements into delivery-ready technical solutions Guide engineering teams through build, test and release Act as the technical authority , balancing delivery speed with long-term architecture What You'll Work With Java-based Back End architecture Angular Front End...

Data Architect (Contract) - Lakehouse, Azure, AWS. Rate - £700 per day. Status - Outside IR35. Duration - 6 Months (Initial). Locations - London, Manchester, or Leeds. Security Clearance - Must be SC Cleared or able to be cleared We have recently partnered with a leading consultancy seeking contract Data Architects for several migration projects from legacy platforms to modern cloud data platforms. We are hiring for senior-level Data Architects for high-profile public-sector projects. This is an opportunity to lead technical strategy for large-scale legacy-to-new migrations, moving from on-premises environments to modern cloud architectures. Platform & Technical Focus You will be responsible for designing and implementing architectures across diverse cloud-native stacks: AWS Ecosystem: Implementing solutions using Redshift Spectrum, S3, Glue, and EMR. Azure Ecosystem: Leading migrations and deliveries using Databricks and...

🚀 Building a Senior AI Engineering Team (LLM + Distributed Systems) Global Investment Bank | Capital Markets Platform 📍 London (1–2 days onsite) 💰 £700–£1,200/day (Outside IR35) Contract to permanent available 📅 12-month contracts The Mandate We are building a production-grade AI platform inside a global investment bank. This is not a research team or a chatbot project. This is engineering-heavy , focused on integrating LLM systems into large-scale, distributed environments used by trading and quant teams. We are hiring across multiple levels: Lead Engineer (Agentic / RAG focus) Architect (end-to-end platform design- Agentic / RAG focus) Senior Engineers (x3) Agentic / RAG focus Potential Director-level hire to oversee the function What This Role Requires (Read Before Applying) You must have: Experience building distributed systems at scale Strong background in backend or data engineering Proven experience working on...