33 system engineer jobs found in London

Test Engineer AWS IAM (Identity and Access Management) Start ASAP (Jan 5th) Rate £450/500 Outside IR35 Digital Skills require an experienced Test Engineer with experience in Identity and Access Management (IAM) systems (Ideally AWS) . You will be working in Back End environments, testing distributed systems, looking at performance testing and producing automated testing frameworks. Required Experience Strong Python Skills ? AWS services and cloud infrastructure experience experience running tests across distributed architectures REST APIs Headless applications (non-web UI) Data concordance testing System spin-up/spin-down scenarios This role is very much a Testing role and you must be highly skilled and experienced in: Integration testing?focus (rather than unit testing) Performance testing and benchmarking? Automated testing...

iO Associates are partnered with a leading R&D organisation in their search for a DevOps Engineer with Active SC Clearance. You'll be working close to the hardware and operating system, supporting the design, build and automation of the infrastructure. Location: 2-3 days / week on-site in London Day Rate: £525 - £600 / day Outside IR35 Contract: 6 Months What we're looking for: Strong Linux engineering skills (Ubuntu, RHEL or similar) Proven experience in on-prem or hardware-adjacent environments Strong programming/scripting skills (Python preferred, but Bash, Go, or similar also valued) Good knowledge of DevOps tools and practices (e.g., Ansible, CI/CD, GitLab, Jenkins, Terraform, PowerShell, Git etc.) Solid understanding of networking fundamentals A methodical, problem-solving mindset - able to diagnose difficult, low-level issues Someone pragmatic, collaborative and comfortable working in a fast-moving build phase The client are looking to...

iO Associates are partnered with a leading R&D organisation in their search for a DevOps Engineer with Active SC Clearance. You'll be working close to the hardware and operating system, supporting the design, build and automation of the infrastructure. Location: 2-3 days/week on-site in London Day Rate: £525 - £600/day Outside IR35 Contract: 6 months What we're looking for: Strong Linux engineering skills (Ubuntu, RHEL or similar) Proven experience in on-prem or hardware-adjacent environments Strong programming/Scripting skills (Python preferred, but Bash, Go, or similar also valued) Good knowledge of DevOps tools and practices (eg, Ansible, CI/CD, GitLab, Jenkins, Terraform, PowerShell, Git etc.) Solid understanding of networking fundamentals A methodical, problem-solving mindset - able to diagnose difficult, low-level issues Someone pragmatic, collaborative and comfortable working in a fast-moving build phase The client are looking to get...

Site Reliability Engineer Job Opportunity: Freelance Site Reliability Engineer (Outside IR35) £500-550 | Remote (UK-Based) | Occasional travel to Farnborough or Hammersmith Contract until 2026 We 're hiring two hands-on Site Reliability Engineers (SREs) to join a fast-moving platform team on a long-term contract. This role is ideal for engineers with strong coding skills who are comfortable resolving live production issues - not just escalating them, but diving into the code and fixing them directly. This is a UK-based, fully remote position, with occasional in-person meetings in Farnborough or Hammersmith . The contract is outside IR35 and runs through 2026. Key Requirements • Strong software engineering experience, ideally in Java (Spring Boot) and Python • Proven background in SRE practices, including platform reliability, monitoring, and incident response • Ability to debug and resolve issues directly...

• £65 p/hour (Outside IR35) • 2 days per week in London • 6-month contract This is an excellent opportunity for an experienced Building Automation (BMS) Engineer to take a lead role within a mission-critical facilities environment, supporting major capital and retrofit projects. What you’ll be doing: • Leading the development of HVAC control system and EPMS designs, including drawings, specifications, Sequences of Operation and Point Lists • Managing vendor/subconsultant reviews, quality checks, test scripts, FATs and commissioning support • Coordinating with multidisciplinary teams and clients while producing and reviewing technical documentation (Revit/AutoCAD/ePlan) Next Steps: Want to take the lead on complex automation projects in a mission-critical environment? Apply now to get started.

Principle Computer Vision Engineer Contract: Freelance/Contractor Pay Rate: £500 - £600 per day (Outside IR35) Location: Fully Remote About the Role: Join Hawk-Eye Innovations (HEI) as a Principle Computer Vision Engineer on a freelance basis. This role focuses on developing real-time skeletal, ball, and game object tracking systems across multiple sports. You’ll work on advanced computer vision pipelines and mathematical models that power our world-leading sports tracking technology. Your work will contribute directly to live sporting events — solving complex, real-world problems where accuracy and performance truly matter. You’ll collaborate with engineers across teams to build, optimise, and deploy production-grade systems that redefine how sport is seen and experienced. Core Responsibilities: Design and implement computer vision algorithms for real-time tracking across multiple sports. Model behaviour from noisy inputs using robust...

Principle Computer Vision Engineer Contract: Freelance/Contractor Pay Rate: £500 - £600 per day (Outside IR35) Location: Fully Remote About the Role: Join Hawk-Eye Innovations (HEI) as a Principle Computer Vision Engineer on a freelance basis. This role focuses on developing real-time skeletal, ball, and game object tracking systems across multiple sports. You’ll work on advanced computer vision pipelines and mathematical models that power our world-leading sports tracking technology. Your work will contribute directly to live sporting events — solving complex, real-world problems where accuracy and performance truly matter. You’ll collaborate with engineers across teams to build, optimise, and deploy production-grade systems that redefine how sport is seen and experienced. Core Responsibilities: Design and implement computer vision algorithms for real-time tracking across multiple sports. Model behaviour from noisy inputs using robust...

Full job description Principle Computer Vision Engineer Contract:  Freelance/Contractor Pay Rate:  £500 - £600 per day (Outside IR35) Location:  Fully Remote About the Role: Join Hawk-Eye Innovations (HEI) as a  Principle Computer Vision Engineer  on a freelance basis. This role focuses on developing real-time skeletal, ball, and game object tracking systems across multiple sports. You’ll work on advanced computer vision pipelines and mathematical models that power our world-leading sports tracking technology. Your work will contribute directly to live sporting events — solving complex, real-world problems where accuracy and performance truly matter. You’ll collaborate with engineers across teams to build, optimise, and deploy production-grade systems that redefine how sport is seen and experienced. Core Responsibilities: Design and implement computer vision algorithms for...

Senior Software Engineer, App Experience, Contract, Outside IR35, Remote, My client, a global hospitality brand, is on the search for a Senior Software Engineer to join a cross-functional App Experience team, helping deliver a best-in-class mobile experience and supporting the rollout of a new feature-flag platform. This role will be predominantly backend work using Node, TypeScript and will involve working closely with API’s, updating / refactoring. What you’ll do Build and enhance backend services powering a widely used customer mobile app Ensure applications are performant, scalable, and secure Participate in agile delivery: code reviews, testing, deployments Integrate enterprise systems into custom-built architecture Tech you’ll work with Node.js, JavaScript, TypeScript, React Automated testing: Jest, React Testing Library, MSW, Maestro CI/CD & cloud tools such as Bitrise, GitHub Actions, Cloud Run, Cloud Build, Terraform React Native and...

We’re looking for a Platform engineer for the an Infrastructure team to build, configure, and support infrastructure to enable teams to deliver their solutions across the estate. You’ll manage the systems and their full lifecycle of the infrastructure components and automate deployments and updates so that we operate securely. This is a hybrid position with 3 days per week on client site in London. Requirements Create and maintain infrastructure setup, configuration management and deployment automation across on-prem and Azure Cloud Identify and troubleshoot platform-related issues, assisting in root cause analysis and finding solutions Monitoring the health and performance of the platform, flagging issues for further investigation Work on automating routine tasks to improve efficiency and reduce manual efforts Document platform configurations, processes and troubleshooting steps to build a knowledge base for future reference Follow security guidelines and...

Role: Staff Software Engineer Sector: Life Sciences Location: London Days Onsite: 3 per week Day Rate: £800 Outside IR35 Duration: 4 Months then to extend or go Permanent iO Associates have partnered with Life Science Manufacturing company on their search for a Staff Software Engineer who has a strong background in integrating Medical Devices. This role will give you the opportunity to make a real impact in Healthcare and Life Sciences. Essential Requirements Strong .NET / C# background Significant experience integrating and communicating with hardware devices Ability to handle Windows devices, drivers, and communication layers 8+ years of experience at a staff-level , capable of working autonomously Not a web-focused developer; needs to be fully hardware-integration oriented Beneficial Experience gRPC , REST APIs , HTTP Integrating devices in Life Sciences Robotics integration (robotic arms, 6-axis systems) If you're interested, please...

43350 PROJECT ENGINEER AA 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 with project managers, architects, and technical SMEs to deliver...

Role: Staff Software Engineer Sector: Life Sciences Location: London Days Onsite: 3 per week Day Rate: £800 Outside IR35 Duration: 4 Months then to extend or go Permanent iO Associates have partnered with Life Science Manufacturing company on their search for a Staff Software Engineer who has a strong background in integrating Medical Devices. This role will give you the opportunity to make a real impact in Healthcare and Life Sciences. Essential Requirements Strong .NET/C# background Significant experience integrating and communicating with hardware devices Ability to handle Windows devices, drivers, and communication layers 8+ years of experience at a staff-level , capable of working autonomously Not a web-focused developer; needs to be fully hardware-integration oriented Beneficial Experience gRPC , REST APIs , HTTP Integrating devices in Life Sciences Robotics integration (robotic arms, 6-axis systems) If you're interested, please respond...

Contract Description Must speak fluent French Must be available to visit client site in Ivory Coast for 1 week (12th > 16th January ((fully expensed - alongside the Red Badger Team)). Client is a Development Bank 10 week contract   Start date Monday 12th January Discovery / Review website and intranet project - As is > To Be development piece with a roadmap to implementation deliverable Joining a cross functional team of 5 (Engineer / Delivery / Product / UX / Product Design) Immediate interviews Ltd company outside IR35 or Umbrella contract. £Competitive day rate 2 days / week in person working (Old Street / Moorgate)     About Red Badger     Founded in 2010 by Stuart, Cain and David, we help large organisations improve their speed to market whilst focusing on delivering value to their users and customers. We work with our clients to understand their...

Must speak fluent French Must be available to visit client site in Ivory Coast for 1 week (12th > 16th January ((fully expensed - alongside the Red Badger Team)). Client is a Development Bank 10 week contract Start date Monday 12th January Discovery / Review website and intranet project - As is > To Be development piece with a roadmap to implementation deliverable Joining a cross functional team of 5 (Engineer / Delivery / Product / UX / Product Design) Immediate interviews Ltd company outside IR35 or Umbrella contract. £Competitive day rate 2 days / week in person working (Old Street / Moorgate) About Red Badger Founded in 2010 by Stuart, Cain and David, we help large organisations improve their speed to market whilst focusing on delivering value to their users and customers. We work with our clients to understand their problems and validate ideas in order to deliver improved process efficiencies, strategic...

Google Cloud Architect – Contract 6 Months – Outside IR35 £600 per day SC or DV Clearance (UKSV) Required Hybrid: Home + 3 days/week onsite in Central London Are you a Google Cloud specialist with a passion for designing secure, mission-critical systems? We’re looking for a Google Cloud Architect to join a specialist systems integrator delivering into UK Government on a major multi-year transformation programme. This is an opportunity to shape and implement some of the most strategically important government systems in operation today. You’ll architect next-generation platforms that protect national capability — working alongside some of the best engineers in the industry in an environment where innovation, precision and security are paramount. What You’ll Be Doing Designing and delivering secure, scalable and resilient architectures in Google Cloud Platform (GCP) and Google Distributed Cloud (GDC) . Engineering solutions for disconnected...

Contract GCP DevOps Engineer (SC Cleared) - Outside IR35 - £450-£550/day Duration: Until March 2026 (likely extensions) 4-6 months Clearance: Active SC required IR35: Outside Location : Largely remote with the expectation to be onsite in London or Corsham when needed My client is looking to build out a new GCP Cloud engineering team. So I am on the look for multiple GCP DevOps / Cloud Engineers to join a fast-moving engineering team building mission-critical, secure GCP platforms with real-world impact. This is a high-autonomy, high-influence role where you'll shape cloud architecture, tooling, and DevSecOps practices while working on the future of trusted, deployable AI infrastructure . What You'll Do Deliver hands-on GCP engineering with a focus on GKE Build and automate infrastructure using Terraform, CI/CD, and cloud-native tooling Deploy secure, reliable, production-grade cloud systems Help drive architectural and tooling decisions in a modern...

We're looking for a Platform engineer for the an Infrastructure team to build, configure, and support infrastructure to enable teams to deliver their solutions across the estate. You'll manage the systems and their full lifecycle of the infrastructure components and automate deployments and updates so that we operate securely. This is a hybrid position with 3 days per week on client site in London. Requirements Create and maintain infrastructure setup, configuration management and deployment automation across on-prem and Azure Cloud Identify and troubleshoot platform-related issues, assisting in root cause analysis and finding solutions Monitoring the health and performance of the platform, flagging issues for further investigation Work on automating routine tasks to improve efficiency and reduce manual efforts Document platform configurations, processes and troubleshooting steps to build a knowledge base for future reference Follow security guidelines and...

We’re looking for a Platform engineer for the an Infrastructure team to build, configure, and support infrastructure to enable teams to deliver their solutions across the estate. You’ll manage the systems and their full lifecycle of the infrastructure components and automate deployments and updates so that we operate securely. This is a hybrid position with 3 days per week on client site in London. Requirements Create and maintain infrastructure setup, configuration management and deployment automation across on-prem and Azure Cloud Identify and troubleshoot platform-related issues, assisting in root cause analysis and finding solutions Monitoring the health and performance of the platform, flagging issues for further investigation Work on automating routine tasks to improve efficiency and reduce manual efforts Document platform configurations, processes and troubleshooting steps to build a knowledge base for future reference Follow security guidelines and...

Data Engineer / Analytics Engineer Contract £400-£450pd (Outside IR35) Remote working About the Role We are looking for a skilled Data Engineer (or Analytics Engineer , depending on experience) to design, build, and maintain the data foundations that power our reporting, analytics, and decision-making. You will work closely with data analysts, engineers, and client teams to create clean, reliable datasets and ensure seamless data flows across our systems.   What You’ll Do Database & Architecture Design and implement relational database schemas. Set up and maintain raw, test, and production database environments. Ensure data integrity, scalability, and performance across systems.   Data Engineering / ETL Build and maintain ETL/ELT pipelines using SQL or Python. Transform and wrangle data from multiple sources into analytics-ready tables. Create reliable methods to read/write user inputs from the front-end into the database.   BI & Reporting...