51 integration engineer jobs found in London, greater london

Data Integration Engineer LOCATION: Clapham, London (3 days per week onsite) RATE: £400 per day (Outside IR35) DURATION: 3-Month Contract We're supporting a leading global health & fitness business as they continue to expand their data and analytics capabilities. This is an exciting opportunity for an experienced Data Integration Engineer to play a key role in multiple business-critical initiatives, helping to design, build, and optimise data integration and migration solutions across the organisation. Key Responsibilities Design, develop, and maintain data integration and ETL solutions Build and optimise data pipelines to support analytics and reporting requirements Lead data migration activities between source and target systems Implement data validation, cleansing, and transformation processes Monitor and troubleshoot data pipelines, ensuring reliability and performance Collaborate with business stakeholders to gather and translate requirements...

Tecknuovo is a deliberately different digital consultancy, delivering secure, modern solutions while upskilling client teams to ensure zero long-term dependency. We are seeking a Backend Engineer to support a government digital environment. Focused on Back End services, integrations, and data flows supporting Salesforce, with a strong emphasis on APIs and system connectivity. Immediate start required. Key Responsibilities Build and maintain Back End integrations supporting Salesforce Design and support APIs and data services Work with Salesforce teams to ensure clean, scalable integrations Support data querying and transformation where needed Essential Skills Strong API development and integration experience Salesforce platform exposure (integration-side focus) Experience working with data and Back End services Nice to Have Boomi/Boomie/Middleware tools SQL Experience with Salesforce event-driven or integration patterns Location: London (ad-hoc) Contract:...

Senior Software Engineer - APIs & Integration (Azure & Kafka) Contract Length: 6 months Initial Rate: £500-£525 per day Location: Remote IR35: Outside We're supporting a major cloud transformation programme and are looking for an experienced API Architect to help modernise a critical enterprise platform. This role is focused on transforming a large API estate, migrating services from on-premise infrastructure into Azure, and evolving a monolithic architecture into a modern, scalable, event-driven ecosystem. This is a hands-on architecture role where you'll work closely with engineering teams to define architectural standards, guide implementation, and support the delivery of a long-term modernisation strategy. The Opportunity You'll play a key role in: Leading the migration of business-critical APIs from on-premise environments into Azure Defining and driving API architecture across a complex technology landscape Decomposing a large API monolith into...

NiFi Engineer Security Clearance Requirement: SC Cleared Location: Remote Contract Type: Outside IR35 Role Description: We are seeking a skilled and experienced NiFi Engineer to join our team. This role requires a professional with current SC Clearance and offers the flexibility of remote working. As a NiFi Engineer, you will be responsible for designing, developing, and implementing data workflows using Apache NiFi to optimise data integration processes. You will work closely with stakeholders to gather requirements and translate them into effective, scalable solutions. Key Responsibilities: - Develop and maintain Apache NiFi data flows, ensuring efficient data processing and integration. - Collaborate with various teams to understand data needs and design customised solutions. - Troubleshoot and resolve issues related to data flow, performance, and scalability. - Continuously monitor and improve workflows for optimal performance. - Document...

Location: London (Hybrid) Rate: £50-55 per hour + VAT IR35 Status: Outside IR35 About the Opportunity We're supporting an innovative technology business developing cutting-edge wearable products that combine hardware, embedded systems, AI, and data analytics to deliver real-time performance coaching. The business has grown from an early-stage concept into a globally recognised technology platform, leveraging large-scale real-world data and intelligent sensing to create industry-leading products. We're seeking a Hardware & Embedded Software Engineer to help develop the next generation of wearable technology. The Role This is a highly varied engineering position sitting at the intersection of hardware, embedded software, sensors, and product development. You'll work closely with product, AI, mobile, and data teams to develop wearable electronics that deliver accurate real-time performance feedback in demanding environments. This role is ideal for an engineer who...

Full job description Location:  London (Hybrid) Rate:  £50-55 per hour + VAT IR35 Status:  Outside IR35 About the Opportunity We're supporting an innovative technology business developing cutting-edge wearable products that combine hardware, embedded systems, AI, and data analytics to deliver real-time performance coaching. The business has grown from an early-stage concept into a globally recognised technology platform, leveraging large-scale real-world data and intelligent sensing to create industry-leading products. We're seeking a Hardware & Embedded Software Engineer to help develop the next generation of wearable technology. The Role This is a highly varied engineering position sitting at the intersection of hardware, embedded software, sensors, and product development. You'll work closely with product, AI, mobile, and data teams to develop wearable electronics that deliver accurate real-time performance feedback in demanding...

Test Engineer (Financial Services) – Contract Location: UK (London or Swindon preferred) Contract Length: 6–12 Months Rate: £350 per day IR35 Status: Outside IR35 We are currently seeking 3 experienced Test Engineers to join a major Financial Services organisation on a business-critical programme. This is an excellent opportunity for testing professionals with experience working within regulated environments and exposure to Unisys platforms. Key Responsibilities Design, execute, and maintain test cases and test scripts. Perform functional, system, integration, and regression testing. Identify, record, and manage defects through to resolution. Collaborate with developers, business analysts, and stakeholders to ensure requirements are fully understood and validated. Produce clear test documentation, evidence, and reporting. Participate in Agile ceremonies and contribute to delivery planning. Support continuous improvement of testing processes...

Data Engineer (SC & NPPV3 Cleared) - Contract (Outside IR35) Location: London (3 days onsite per week) Duration: 3 months (initial) Rate: Up to £570 per day (Outside IR35) Start: ASAP We are currently seeking an experienced Data Engineer for an urgent contract opportunity with a London-based client. This role requires candidates to already hold active NPPV3 and SC clearance, due to the nature of the work. Key Requirements Proven experience as a Data Engineer in enterprise environments Strong expertise in data pipelines, ETL processes, and data integration Hands-on experience with modern data tools and platforms (eg Azure, AWS, Databricks, Spark, SQL, Python) Ability to design, build, and optimise scalable data solutions Strong understanding of data modelling and data warehousing concepts Excellent stakeholder communication skills Mandatory Criteria Active NPPV3 clearance Active SC (Security Clearance) Ability to work onsite in London 3 days per week...

🚀 AI Engineer (Contract) | Outside IR35 | Up to £600/day OB are currently partnered with a high-growth tech company that's investing heavily in AI and automation across the business. They're looking for an AI Engineer to join a small, high-impact team responsible for building AI-powered tools, LLM integrations, intelligent workflows and internal platforms that are transforming how teams operate day-to-day. You'll be working with technologies including Python, TypeScript, LLMs, Kubernetes, APIs, workflow automation tools and modern AI infrastructure, with the autonomy to take ideas from concept through to production. 💡 Looking for: • Strong Python and/or TypeScript experience • Commercial experience building AI applications • Experience with LLMs, embeddings and AI tooling • API integration experience • Kubernetes / cloud-native environments 📍 Shoreditch (2-3 days per week) 💰 Up to £600/day 📝 Outside IR35 If you're interested in building AI...

Endpoint Engineer contract 12 months. The position can be based inside or Outside of IR35, depending on the candidate's setup. A leading Trading firm is hiring a contract Endpoint Engineer. This role is responsible for engineering, support, and lifecycle management of endpoint hardware, operating systems, applications, and associated management platforms. This includes solving critical business incidents, improving the end-user experience, and partnering closely with Traders, Service Desk personnel, and other infrastructure teams. A strong customer focus, an ownership mentality, an engineering mindset, and a sense of urgency are critical. Troubleshoot and resolve complex endpoint, application, and user experience issues, particularly in high-speed, high-availability trading environments. Support endpoint platforms and services across Windows and macOS, with a focus on reliability, standardisation, security, performance, and software lifecycle management....

Senior Software Engineer - Outside IR35 - Contract (Insurance) About the role Essential: Self-starter, someone who can pick up context quickly, drive outcomes efficiently, and to a high quality Competent in doing high-level designs, solution management, and scoping Understanding of data modelling best practices Ability to translate technical solutions to non-technical stakeholders and bring them on the journey Experience working in an agile delivery environment Experience working with React, TypeScript, Azure, Microsoft SQL, and Databricks (if they don’t have all of these, that’s workable, but be good to understand any they don’t have experience with) Frontend: React + TypeScript + Vite Material UI with Emotion for styling TanStack React Query 5 for server state React Router 7 React Hook Form+Yup for forms/validation MSAL for Entra ID auth Jest+Testing Library for unit tests; Playwrightfor E2E and visual tests Hosted as an Azure Static...

?? Senior Voice AI Engineer - Contract (Outside IR35) | £350-500/day | 3-4 months | Remote ?? We're looking for a hands-on engineer to take an existing voice AI proof-of-concept and turn it into a reliable, production-grade system ready for real users. The prototype works - but it now needs to be made fast, stable, scalable, and cost-efficient. What you'll be doing: - Productionising a voice AI system from an existing PoC - Working with voice platforms such as ElevenLabs/Deepgram (or similar) - Improving Real Time performance and reducing latency - Designing lightweight orchestration (simple, deterministic flows over complex prompt chains) - Integrating customer/internal data using RAG approaches - Optimising cost, reliability, and system efficiency - Building and maintaining API/SDK-based voice pipelines - Supporting secure handling of sensitive/PII data What we're looking for: - Strong experience building voice AI or Real Time speech systems - Hands-on experience with...

SC Cleared Technical Architect Client: Government IR35: Outside SC: Yes Start: 1/7 End: 4/1 Rate: £600 - Provide technical leadership and architectural direction across the Cloud - Platform roadmap, working in partnership with the Lead Site Reliability - Engineer to ensure coherent and aligned delivery across an existing, complex AWS-based ecosystem. - Define and evolve the existing AWS organisational design (including OUs and SCP strategy) to enable stronger governance and security controls (inline with UK Government security standards) while maintaining appropriate autonomy for GDS teams. - Lead the design and implementation of AWS Control Tower and landing zone patterns, ensuring they are scalable, reusable, and aligned to organisational security and compliance requirements. - Oversee the evolution of account vending approaches, improving automation, standardisation, and onboarding experience for teams consuming the platform. - Drive the integration of AWS Identity...

Senior Voice AI Engineer - Contract (Outside IR35) | £350-500/day | 3-4 months | Remote We 're looking for a hands-on engineer to take an existing voice AI proof-of-concept and turn it into a reliable, production-grade system ready for real users. The prototype works - but it now needs to be made fast, stable, scalable, and cost-efficient. What you 'll be doing: - Productionising a voice AI system from an existing PoC - Working with voice platforms such as ElevenLabs / Deepgram (or similar) - Improving real-time performance and reducing latency - Designing lightweight orchestration (simple, deterministic flows over complex prompt chains) - Integrating customer/internal data using RAG approaches - Optimising cost, reliability, and system efficiency - Building and maintaining API/SDK-based voice pipelines - Supporting secure handling of sensitive/PII data What we 're looking for: - Strong experience building voice AI or real-time speech systems - Hands-on...

🚀 Senior Front-End Engineer | React | Next.js | AWS Lambda 📍 West London (Hybrid: 2 days/week on-site) | Contract | Outside IR35 | 6-month initial (likely extensions) We’re looking for a Senior Front-End Engineer to join a high-performing Agile team building high-traffic eCommerce & service web applications . What You’ll Do Build well-crafted, scalable front-end apps with React.js & Next.js Develop & support server-side rendered apps using AWS Lambda Write resilient, performant, and secure code Implement end-to-end testing (unit, functional, integration, visual regression, Lighthouse) Contribute to technical direction, tooling, and process improvements What We’re Looking For Strong commercial React/Redux experience Solid grasp of TDD, CI/CD & testing frameworks (Jenkins, Concourse, Cypress, etc.) Experience optimising apps for performance, security & resilience Bonus: TypeScript, Node.js, GraphQL...

Senior Front End Engineer, React, Next, AWS, based West London, Hybrid working, 2 days week on site. Outside IR35. 6 months initial, likely extensions. The Role Create extremely well-crafted Front End web applications using React.js and NextJS Support and Develop Server Side Rendered web applications, making use of AWS Lambda Write resilient code that will be continuously tested, deployed and performed at scale Test Front End application e2e with unit, functional, integration, visual regression and lighthouse testing Cross functional Agile team, building high traffic eCommerce and Service web applications Contribute to technical direction and the improvement of its tools and processes Ensure that the code written is performant, resilient, secure and well monitored and alerted web applications Skills Solid commercial experience in React/Redux development Good understanding of development best practices such as TDD, continuous integration and continuous...

Contract: EUC Engineer Start Date: July 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. 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 knowledge of Igel installation and configuration. Demonstrable delivery experience in a regulated industry, including familiarity with change control, audit and compliance constraints. Experience...

SC Cleared DevOps Engineer Location: Remtoe Contract Type: Contract - Outside IR35 Clearance: Active SC Clearance Required About the Role We are seeking a highly skilled and motivated SC Cleared DevOps Engineer to join our growing team. This is an exciting opportunity to play a key role in designing, implementing, and optimising scalable infrastructure and automation solutions across complex hybrid environments. The successful candidate will be instrumental in driving operational efficiency, improving system resilience, and supporting cloud migration and modernisation initiatives. Working closely with architects, engineers, and delivery teams, you will help ensure solutions align with technical roadmaps, governance standards, and industry best practices. Key Responsibilities Develop, maintain, and enhance Ansible playbooks and roles to automate infrastructure provisioning and management. Design and implement robust CI/CD pipelines that support reliable, scalable, and...

Contract: EUC Engineer Start Date: July 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. 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 knowledge of Igel installation and configuration. Demonstrable delivery experience in a regulated industry, including familiarity with change control, audit and compliance constraints. Experience...

Leading eCommerce client now requires a Full Stack JavaScript Engineer to contribute towards the design and development of their evolving digital ecosystem. You will work across their front and back-end applications delivering features and improvements to support their digital roadmap. Key Requirements: Strong hands-on Full Stack development skills – React.js, Next.js, Node.js and TypeScript. Heavy hands-on testing experience (TDD, DDD). Extensive experience developing APIs/Event driven architectures and working with cloud technologies such as AWS. Experience with Amazon Bedrock and Agentcore is desirable. GraphQL/ Nest.js experience AI integration/Cloud AI Platform familiarity is preferred. Used to working in a scrum based agile team. Excellent communication skills with the ability to work autonomously and hit the ground running. This is an initial 6-month contract role which provides a daily rate of £575 (Outside IR35). In terms of working...