149 integration engineer jobs found

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...

Senior AI Engineer – TypeScript, React, .Net, AWS, Claude Code (or similar), Agentic Platform Development – OUTSIDE IR35 We’re seeking a Senior AI Engineer to lead the technical development of an autonomous agent platform: intelligent, self‑learning systems that act as digital counterparts to B2B professionals. You’ll be at the forefront of engineering agentic AI, multi‑agent orchestration, and production‑grade automation, building the foundations for next‑generation workflow intelligence. Working closely with Product, Architecture, Security, DevOps and Commercial teams, you’ll architect and deliver scalable AI solutions across front‑end, back‑end and cloud domains. You’ll establish the core platform that enables rapid deployment of customer‑facing AI features while ensuring reliability, security and seamless integration across the wider ecosystem. What You’ll Lead: Agentic Platform Development Architect and build scalable AI agent frameworks for...

Senior AI Engineer - TypeScript, React, .Net, AWS, Claude Code (or similar), Agentic Platform Development - OUTSIDE IR35 We're seeking a Senior AI Engineer to lead the technical development of an autonomous agent platform: intelligent, self-learning systems that act as digital counterparts to B2B professionals. You'll be at the forefront of engineering agentic AI, multi-agent orchestration, and production-grade automation, building the foundations for next-generation workflow intelligence. Working closely with Product, Architecture, Security, DevOps and Commercial teams, you'll architect and deliver scalable AI solutions across Front End, Back End and cloud domains. You'll establish the core platform that enables rapid deployment of customer-facing AI features while ensuring reliability, security and seamless integration across the wider ecosystem. What You'll Lead: Agentic Platform Development Architect and build scalable AI agent frameworks for autonomous...

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 enjoys...

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...

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...

About The Company Owen Daniels is a leading provider of engineering and automation solutions, specializing in delivering innovative and reliable industrial automation projects across various sectors. With a strong reputation for quality and technical excellence, Owen Daniels is committed to supporting clients with tailored solutions that enhance operational efficiency and productivity. Our team of experienced professionals is dedicated to providing exceptional service, leveraging cutting-edge technology to meet the evolving needs of the manufacturing and industrial industries. About The Role We are seeking an experienced Siemens TIA Portal Software Engineer for an initial three-month contract based in Essex. This role is outside IR35 and offers an excellent opportunity to work on dynamic automation projects within manufacturing and industrial environments. The successful candidate will be responsible for developing and supporting PLC and HMI systems, ensuring seamless...

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...

Digital Tracking & Analytics Engineer (Web Developer) needed urgently for our FMCG client based in Glasgow (though the role can be worked fully remotely) for an initial 1-2-month contract. The right candidate must have extensive demonstrable experience as a Web Developer working with paid advertising, cookie consent, Google Ads etc along with strong experience in Google Tag Manager (GTM) alongside strong Advert platform tracking experience, including Meta & TikTok and CAPI. This role is Outside IR35 and can be worked fully remote. The role requires a strong Digital Tracking Engineer/Web Analytics implementation specialist to audit, stabilise and remediate their current TikTok, Meta, GA4 and GTM tracking setup across both web browser and Server Side implementations. Some of the deliverables will include ensuring clean, deduplicated and accurate event tracking across browser and server, ensuring sessions and conversions are attributing correctly and improve...

Lead Technology Full Stack Engineer - 100% Remote - OUTSIDE IR35 You will lead a team of engineers, working across both front-end and back-end technologies while collaborating with architecture, cloud, product, and data science teams. The position is ideal for a hands-on technical leader who enjoys building scalable products and mentoring high-performing engineering teams. Lead Technology Full Stack Engineer Responsibilities Own end-to-end technical design and delivery across React, TypeScript, Vite, and Golang platforms. Define API standards, service architecture, and application design patterns. Lead engineering design reviews, code reviews, and technical decision making. Establish development standards, testing frameworks, and quality controls. Design and maintain CI/CD pipelines, containerisation, and cloud deployment processes. Collaborate with architects and data science teams to integrate AI and machine learning capabilities. Work closely with product and UX teams to...

Software Test Engineer / Lead – Outside IR35   My client is the fastest growing technology company who is seeking a Software Test Engineer / Lead for an initial 12-month contract. As a Software Test Engineer / Lead you should have experience with both Manual and Automated Testing, Regression Testing or Performance Testing. As a team player you will be liaising with other multi-functional testers and software designer / developers to understand the business requirements and product functionality, You will be involved in software test spec, manual test cases, automated test scripts and performance testing solutions that will need to be implemented throughout the delivery pipeline. Involvement in production and maintenance of system testing and systems integration of hardware and software components through to resolution of all faults found in the software. You will ideally be degree educated in an engineering or science subject, with a good IT content and ISTQB® certification is...

Senior Embedded Software Engineer – Safety-Critical Systems – Outside IR35 – Hybrid We're looking for a Senior Embedded Software Engineer to support the development of high-integrity software for mission-critical systems within a complex engineering environment. This role is focused on the design, development, integration, and verification of embedded software operating within regulated and safety-critical systems. You'll work closely with systems, electronics, and test engineers across the full development lifecycle, helping deliver robust, reliable software for operational applications. The position offers significant technical ownership and would suit engineers who enjoy working at the intersection of software, hardware, and systems engineering. Skills & Experience: Essential: - Strong Embedded C and/or C++ development experience - Experience developing software for RTOS-based systems - ARM-based embedded systems experience - Full software...

Outside IR35 contract, fully remote, excellent day rate until 31/05/27 Experience leveraging Claude Code (or similar) and advanced agentic workflows at pace is a key requirement, please do not apply if you don't have this experience Reapit - Who are we? Reapit is the original end-to-end business technology provider for estate agencies of all sizes. We've been helping sales and lettings agents build relationships and grow their businesses for more than 25 years. Our technology empowers property professionals across Europe, the Middle East, Australia, and New Zealand to work with buyers, sellers, tenants, and landlords to deliver a dream home experience. Worldwide, over 100,000 agents across more than 15,000 branches use Reapit to run their businesses, manage properties, collect rent, engage clients, and provide outstanding customer service every time. What you'll be doing Reporting to the Director of Engineering, you'll operate as a highly senior technically...

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 (e.g. 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...

Leonardo Helicopters Principal Engineer - Avionic Systems Rate: £65 LTD IR35 status: outside IR35 Duration:12 months Location: Yeovil 3 days a week on site PURPOSE To carry out requirements definition, design, development, integration, test, certification (Military and Civil) and support of Avionic and Mission Systems click apply for full job details

Software Test Engineer/Lead Outside IR35 My client is the fastest growing technology company who is seeking a Software Test Engineer/Lead for an initial 12-month contract. As a Software Test Engineer/Lead you should have experience with both Manual and Automated Testing, Regression Testing or Performance Testing. As a team player you will be liaising with other multi-functional testers and software designer/developers to understand the business requirements and product functionality, You will be involved in software test spec, manual test cases, automated test scripts and performance testing solutions that will need to be implemented throughout the delivery pipeline. Involvement in production and maintenance of system testing and systems integration of hardware and software components through to resolution of all faults found in the software. You will ideally be degree educated in an engineering or science subject, with a good IT content and ISTQB\xc2\xae certification...