45 integration engineer jobs found

London - Hybrid (2/3 days a week in the office) 3 month Contract - outside IR35 We are looking for a skilled Integration Engineer to join a growing technology team within this Financial Services organisation on a short term contract. The role is ideal for someone with experience in Financial Services, particularly Life & Pensions, who wants to design and deliver robust integration solutions across complex systems. You’ll work with .NET, Azure Integration Services, and modern microservices architectures to ensure seamless data flow and scalable operations. The Role: Lead the design, development, and support of integration solutions connecting applications, services, and data across the business. Work with .NET (C#), Azure Integration Services (Logic Apps, API Management, Service Bus, Event Grid), and containerised microservices (Docker, AKS). Implement CI/CD pipelines, automation, and modern integration patterns for secure, resilient, and scalable solutions....

Salesforce Engineer | £400 – £450 | Outside IR35 | 6 Months | Remote First   We’re recruiting for an experienced Salesforce Engineer for a 6-Month contract role. This position will play a key role in leading Salesforce refactoring, modernising backend systems, and driving modern engineering practices across our clients platform. Offering £400 - £450 per day, this role is determined as Outside IR35 and may require occasional travel to the office most local to you.   Key Requirements Take ownership of large‑scale Salesforce Apex refactoring and backend process improvements Enhance Salesforce integration architecture, reliability, CI/CD, and automated testing Drive modern engineering practices and support AI‑assisted development tools Resolve technical debt, improve performance, and ensure scalable architecture Requires strong Salesforce Apex, Java, CI/CD, integrations, automation, and refactoring experience Previous experience working in Fintech or regulated...

Salesforce Engineer | £400 - £450 | Outside IR35 | 6 months | Remote First We're recruiting for an experienced Salesforce Engineer for a 6-Month contract role. This position will play a key role in leading Salesforce refactoring, modernising Back End systems, and driving modern engineering practices across our clients platform. Offering £400 - £450 per day, this role is determined as Outside IR35 and may require occasional travel to the office most local to you. Key Requirements Take ownership of large scale Salesforce Apex refactoring and Back End process improvements Enhance Salesforce integration architecture, reliability, CI/CD, and automated testing Drive modern engineering practices and support AI assisted development tools Resolve technical debt, improve performance, and ensure scalable architecture Requires strong Salesforce Apex, Java, CI/CD, integrations, automation, and refactoring experience Previous experience working in Fintech or regulated...

Salesforce Engineer | £400 - £450 | Outside IR35 | 6 Months | Remote First We're recruiting for an experienced Salesforce Engineer for a 6-Month contract role. This position will play a key role in leading Salesforce refactoring, modernising backend systems, and driving modern engineering practices across our clients platform. Offering £400 - £450 per day, this role is determined as Outside IR35 and may require occasional travel to the office most local to you. Key Requirements Take ownership of large-scale Salesforce Apex refactoring and backend process improvements Enhance Salesforce integration architecture, reliability, CI/CD, and automated testing Drive modern engineering practices and support AI-assisted development tools Resolve technical debt, improve performance, and ensure scalable architecture Requires strong Salesforce Apex, Java, CI/CD, integrations, automation, and refactoring experience Previous experience working in Fintech or...

**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...

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....

Agentic RAG Engineer / Architect Department: Global Markets — AI & Intelligent Automation Location: London City, Hybrid - Contract (Outside IR35) About the Team My client's Global Markets Division are building an enterprise-grade agentic platform that will transform how trading, sales, risk, and operations teams access, reason over, and act on information. A critical pillar of this platform is an agentic Retrieval-Augmented Generation (RAG) layer — not a simple search and stuff pipeline, but an intelligent, self-directing retrieval system that can plan queries, route across heterogeneous data sources, assess and refine its own results, and feed high-fidelity context to downstream agents. The data landscape is complex: unstructured research, regulatory documents, structured trade and risk data in relational and tabular stores, graph-based entity relationships, real-time market data, and internal knowledge bases. The RAG layer must unify all of this behind a...

Agentic Systems Engineer / Architect Department: Global Markets — AI & Intelligent Automation Location: London City, Hybrid - Contract (Outside IR35) About the Team My client's Global Market Division is building a next-generation agentic platform that will fundamentally transform how their trading, sales, and risk functions operate. This initiative sits at the intersection of large language models, autonomous workflow orchestration, and mission-critical financial infrastructure. The platform will power a fleet of intelligent agents capable of reasoning, planning, executing multi-step tasks, and collaborating across domains. You will be joining at the ground floor of this build-out and will have outsized influence on the architecture, engineering culture, and technical direction of the programme. Role Purpose They are looking for a hands-on architect and engineer who will design, build, and own the core agentic orchestration framework that underpins...

Senior Full-stack Python Typescript AI Engineer- Outside IR35   ROLE   This position is for a Senior Backend Developer working in python and typescript to support the development on a SaaS product with a focus on Ai.   This role involves designing, building, and optimising scalable backend services and APIs to support a single-tenant, multi‑instance SaaS platform, while contributing to the architecture and implementation of AI‑driven components such as Retrieval‑Augmented Generation (RAG) pipelines, vector databases, semantic search, and structured or knowledge‑graph‑based data modelling approaches. You will support the design of robust data models and pipelines capable of handling both structured and unstructured data with strong traceability and auditability, and help transition prototypes into production‑ready systems with a focus on security, access control, performance, reliability, observability, and monitoring. The role also includes building and managing...

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...

43350 PROJECT ENGINEER AA { ʺdescription ʺ: ʺ Ref: 43350 Project Engineer - 12-Month Contract (Outside IR35) Global Accountancy Firm | Fully Remote I am partnering with a leading global accountancy firm that is currently undertaking an ambitious integration programme across multiple M&A pipelines. We are seeking an experienced Project Engineer to join on an initial 12-month contract , operating fully remotely and outside IR35 . The Role You will play a key role in delivering infrastructure and services workstreams aligned to ongoing M&A activity. This position requires a strong blend of hands-on technical capability and structured project management experience, ensuring seamless integration across environments, systems, and services. Key Responsibilities • Lead and support technical workstreams related to infrastructure integration across multiple acquisitions. • Work closely...

Job Title: Senior Data Engineer Day Rate: £400-450/day (Outside IR35) Location: 3 days per week on-site in either London or Birmingham Contract Length: 6 months Senior Data Engineer - Role & Responsibilities Design, build, and maintain scalable data pipelines and data models within Microsoft Fabric, supporting enterprise analytics and reporting needs. Lead the migration from Azure Synapse to Microsoft Fabric using a Medallion architecture approach, while ensuring stability of existing Azure and SQL Server environments. Integrate internal systems and third-party data sources into the Fabric platform using APIs and robust data integration patterns. Develop, optimise, and automate ETL workflows, ensuring high standards for data quality, validation, and performance. Deliver and govern Power BI dashboards and reports, while mentoring and upskilling business users to build a self-service analytics capability. Senior Data Engineer - Required Experience...

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 JavaScript Engineer contract - Outside IR35 - £575 per day Leading Ecommerce client is now recruiting a talented ‘Full Stack JavaScript Developer’ who is proficient in front and back-end development. (React/Node.js), with an emphasis on backend Node work initially. This role will be joining their platform team, designing, and building the foundations of which our clients innovative web and mobile applications run on. What will a day in the role entail? 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. The ideal Senior JavaScript Engineer Senior level experience in modern...

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...

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...