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Inside IR35 Contractor test engineer

69 test engineer jobs found

CL
Aug 22, 2026  
Quality Test Engineer
Hays are now looking for an SC Cleared Quality Test Engineer for one of our local clients: £350 p/d Inside IR35 Remote, with occasional travel to Hursley and London (2-3 days per month) Candidates must hold current SC Clearance Option for candidates to be upgraded to DV! We're looking for a Quality/Test Engineer with experience in test automation and performance testing to support the delivery of software solutions within an Agile environment. You'll be involved throughout the testing lifecycle, helping to ensure applications are robust, scalable and fit for purpose. What you'll be doing Creating and executing test cases across multiple technology stacks Developing and maintaining automated test scripts Designing and implementing performance testing strategies Executing performance and load testing activities Investigating issues through debugging, tracing and log analysis Working closely with developers and stakeholders in an Agile delivery team Supporting CI/CD and quality...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Aug 21, 2026  
Quality Performance Test Engineer
Hays are now looking for a Quality Engineer / Performance Tester for one of our local clients: £310 p/d Inside IR35 3 days p/w in the office, 2 WFH Location is one of either London, Manchester or Leicester We're looking for strong experience in performance and non-functional testing to support the delivery of large-scale digital services. The role will focus on ensuring applications are scalable, reliable and performant through a combination of performance testing, API testing and quality engineering practices. What you'll be doing Design, develop and execute performance, load, stress and endurance testing activities. Build and maintain JMeter test scripts and performance test frameworks. Perform API testing and validate system behaviour under varying loads. Analyse performance metrics, identify bottlenecks and provide recommendations for improvement. Work closely with developers, architects and delivery teams to resolve performance issues. Support CI/CD pipelines and integrate...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Aug 20, 2026  
Test Engineer
Test Engineer Clearance: Active SC Clearance is required. Location: Telford Duration: 6 months Location: On-site: 2 days per week in Telford Inside IR35: Rate £400.00 - £410.00 pd Looking for a hands-on QA role where your test expertise genuinely helps deliver outcomes? Our Client is hiring a QA Tester to join an Agile delivery team, performing both manual and automated testing while contributing to test approach, coverage, and clear reporting of quality, risks and issues. What you'll be doing: * Execute manual and automated test activities across delivery projects * Support the team with writing the Test Approach and defining test activities, tasks and deliverables * Document test coverage (including a test coverage matrix) to evidence traceability * Perform Functional System Testing and Integration Testing, including support for end-to-end testing * Analyse customer requirements and technical documentation to identify test scenarios * Write and maintain test scripts,...
IR35 Status:
Inside IR35

CV-Library United Kingdom Contractor
CL
Aug 23, 2026  
Test Development Engineer
We are recruiting for a talented Hardware Design Engineer to join our client's Test Equipment Hardware Design Capability team on a 6-month contract. Part of the Test Equipment Centre of Excellence (TE CofEx), this team designs, integrates, and validates innovative test system hardware solutions that support products throughout their lifecycle. This is a fantastic opportunity to contribute to cutting-edge projects, ensure technical excellence, and help drive engineering success. Role: Test Development Engineer Pay: £50 per hour Via Umbrella Location: Stevenage Contract: Monday- Friday, 37 Hours per week, 6 Months Contract IR35 Status: Inside Security Clearance: SC Required however can start on BPSS Essential Responsibilities Prepare specifications & develop designs in line with all quality and technical standards. Develop proposals for investigations & solutions, following investigation and analysis of technical issues. Carry out design appraisals to ensure all...
IR35 Status:
Inside IR35

CV-Library Stevenage, Hertfordshire Contractor
CL
Aug 21, 2026  
Test Equipment Design Support Engineer
World Class Defence Organisation based in Bolton is currently looking to recruit 2x Test Equipment Design Support Engineer subcontractors on an initial 6 month contract.     This role would suit a candidate who comes from a strong Electronics Engineer OR Production Support Engineer OR Test Systems Designer OR Electronics Design Engineer background.   Rate: £65.00 per hour  Overtime Rate: Hours worked over the standard 37 hours per week, will be paid at ‘time and a quarter’ Location: Bolton Hybrid / Remote working: 4-5 days a week onsite (possible for remote work occasionally).  The department are happy for a Compressed week to be worked, for 4 days per week (Monday to Thursday) Duration: 6 Months with very likely extension. Contracts are often ongoing and long-term thereafter.  IR35 status: Inside IR35 (Umbrella)   Test Equipment Design Support Engineer Job Description:   We have a phenomenal opportunity for experienced Electronic Design Engineers to play a leading role in the...
IR35 Status:
Inside IR35

CV-Library Bolton, UK Contractor
CL
Aug 19, 2026  
Battery Test Senior Technician
Our OEM Client based in Coventry, is searching for a Battery Test Senior Technician to join their team, Inside IR35. This is a contract position with a proposed end date of 31st March 2027. Umbrella Pay Rate: £23.60 per hour. Duties: The Battery Test Operations Team is part of Powertrain Test Operations within Product Engineering Operations. The team maintains productive test workflow for HV Battery development at our internal test labs at ABE Lyons Park (Coventry) and BatLab (Gaydon), delivering high-quality electrical characterisation and performance data at cell, module and pack level. The team also supports HV battery activity at other internal sites and External test facilities. The Battery Test Senior Technician role will support our internal facilities to ensure that productive output is maintained to ensure we deliver quality test data to our internal customers / partners. Will be responsible for facilitating specialist equipment, providing and maintaining common...
IR35 Status:
Inside IR35

CV-Library Coventry, UK Contractor
CL
Aug 18, 2026  
Battery Test Senior Technician
Battery Test Senior Technician - (phone number removed) - £23.69/hr (Umbrella Rate - Inside IR35) Unlock a rewarding career opportunity as a Battery Test Senior Technician, supporting high-impact work at the heart of powertrain and product engineering. In this role, you will keep HV battery test activity moving smoothly, ensure high-quality electrical characterisation data, and play a real part in continuous improvement. With a confirmed inside IR35 position, a competitive hourly rate of £23.69 per hour, and a clear pathway to grow into specialist operational leadership, Battery Test Senior Technician is the kind of hands-on job that delivers both purpose and progression. What You Will Do: - Start, stop, run, monitor, and shut down test schedules to maintain reliable test workflow. - Communicate test chamber status and utilisation using clear status and performance documents. - Diagnose and rectify operational issues, and engage test engineers where specialist input is...
IR35 Status:
Inside IR35

CV-Library Coventry, UK Contractor
CL
Aug 22, 2026  
Scala Engineer
Scala Engineer Telford/ Hybrid - 2 days per week onsite £470 per day inside IR35 6 months duration Are you an experienced Scala Developer looking to work on one of the UK's most significant digital transformation programmes? We're seeking a talented Scala Engineer to join a high-performing Agile team delivering modern cloud-based services as part of a major government digital programme. You'll be helping to build secure, scalable applications that improve the way millions of people interact with essential public services. This is an opportunity to work with modern technologies, collaborative engineering teams and cloud-native architectures while contributing to services used across the UK. The Role As a Scala Engineer, you'll be part of a multidisciplinary Agile team responsible for designing, developing and supporting high-performance Scala Play microservices. Working closely with Developers, Business Analysts, User Researchers, Designers and QA Engineers, you'll help...
IR35 Status:
Inside IR35

CV-Library Telford, Shropshire Contractor
CL
Aug 22, 2026  
Development Engineer
Contract Development Engineer - Inside IR35 - 12 Month Contract South Wales - On-site Rate dependent on experience Yolk Recruitment is supporting a global engineering business with an established customer base of major blue-chip manufacturers, and a track record of offering long-term contract opportunities in a professional, stable and positive working environment. This is a 12 month contract with a further 12 months very realistic, on site, supporting a live long-term programme, with further work behind it. You'll be working to validate and verify mechanical components and assemblies, with a mix of theoretical analysis and hands on strip down of components, determining and coordinating test activities, reviewing results, investigating failures and feeding finds back into the wider engineering team. You'll need a mechanical engineering or related degree with strong theoretical knowledge, will be able to read engineering drawings including GD&T and will be used to creating...
IR35 Status:
Inside IR35

CV-Library Cwmbran, Torfaen Contractor
CL
Aug 21, 2026  
Section Engineer
Section Engineer West Ruislip | 15 Month Contract | Inside IR35 | £475 - £525 per day (Umbrella) I'm working with a leading main contractor delivering a high profile major infrastructure project in West London. Due to continued growth on the project, they're looking to appoint an experienced Section Engineer on a 15-month contract based from the site in West Ruislip. This is an excellent opportunity to join a long-term project with a well-established contractor, working on complex civil engineering works as part of a highly experienced delivery team. As Section Engineer, you'll take responsibility for the safe and successful delivery of key work packages, ensuring works are completed to programme, specification and the highest quality standards. Your duties will include: Setting out and surveying works on site. Producing and managing Inspection & Test Plans (ITPs). Preparing and reviewing Risk Assessments and Method Statements (RAMS). Managing permits to work. Maintaining...
IR35 Status:
Inside IR35

CV-Library Ruislip, London Contractor
CL
Aug 20, 2026  
Structures Site Engineer
Site Engineer - Structures - HS2 Sublot 2B, Coventry/Kenilworth £450 per day | Inside IR35 | Minimum 5-Month Contract with Scope for Extension Balfour Beatty VINCI, working on behalf of HS2, is seeking an experienced Site Engineer - Structures to join the team delivering major civil engineering works on Sublot 2B - a key section of the HS2 route extending north from Kenilworth through Warwickshire, Balsall Common and on to the River Blythe. This is an outstanding opportunity to work on one of the UK's most significant infrastructure projects, contributing to the delivery of bridges, viaducts, and structures enabling full connectivity across the Network Rail corridor crossings in this section of HS2. The Role Reporting to the Section Engineer, you'll take ownership of site engineering control and implementation of works, monitoring and reporting progress across your area of responsibility. Key accountabilities include: Ensuring all permits are applied for and in place ahead of...
IR35 Status:
Inside IR35

CV-Library Coventry, West Midlands Contractor
CL
Aug 20, 2026  
Integration Engineer
Order Ref:                    (phone number removed)                                                                      Position Title:              Integration Engineer                            Duration:                      Contract                      Location:                      Gaydon *Applicants MUST have proof of immediate, on-going and valid eligibility to work full time in the UK and travel within the EU.* Inside IR35  £28.43 PER HOUR  Duties: Responsible for the creation of manual and automated feature and system level test cases for Interior Experience features based on feature and system level documentation. Responsible for ensuring the appropriate test techniques are applied and test cases created are robust and meet quality standards. Responsible for executing feature level test cases on vehicles and system level test cases on Hardware in the Loop or Vehicle in the Loop rigs. Responsible for producing test execution reports. Responsible for...
IR35 Status:
Inside IR35

CV-Library Lighthorne, Warwick CV35, UK Contractor
CL
Aug 19, 2026  
Software Engineer
I am currently looking for Software Engineers on a contract basis to work near Fareham. Contract: 6 mths initially Rate: Dependant on experience (circa £80 Inside IR35) Clearance: Suitable candidates will ideally have Security Clearance Job Description We are seeking a Software Engineer to join our Air Traffic Management (ATM) team, contributing to the development of safety-critical distributed systems used in operational air traffic control environments. This role combines high-performance software engineering with the intensive use of AI-assisted development tools (e.g., Microsoft 365 Copilot, GitHub Copilot), enabling increased productivity, code quality, and automation across the software lifecycle. The ideal candidate will be passionate about engineering excellence, modern development practices, and the adoption of AI to enhance software development efficiency and quality. Responsibilities Design and develop software based on system and subsystem requirements...
IR35 Status:
Inside IR35

CV-Library Fareham, Hampshire Contractor
CL
Aug 19, 2026  
Mechanical Design Engineer (F1)
Mechanical Design Engineer Formula 1 - Northampton – Initial 12 month contract This amazing long term contract role for a mechanical design engineer a is a unique opportunity to showcase your expertise and skills with a world leading Formula 1 organisation. You will be a key member within the team and the person that secures this position will be crucial to the success of this dynamic company on its F1 projects. The duration of this contract is estimated to be 12 months minimum and will be inside IR35. What you will do We're looking for Mechanical Designers with experience of using Siemens NX OR Catia and who are capable of demonstrating recent experience of concept design of highly stressed metallic parts, ideally with experience of powertrain design. In this role you will be the specialist for key components / systems on the Power Unit. You will deliver engineering excellence from concept, through prove-out, to race introduction, working closely with other departments to ensure...
IR35 Status:
Inside IR35

CV-Library Brixworth, West Northamptonshire Contractor
CL
Aug 19, 2026  
Setting Out Site Engineer
Site Engineer (Setting Out) – Major Civil Engineering Project Location: Plymouth Contract: Long-term / Freelance (Inside IR35) or Permanent Security Clearance: Required – applicants must be UK Nationals Overview Carmichael UK has a fantastic opportunity for Site Engineers with strong setting-out experience to join a long-term civil engineering project in Plymouth. This is an excellent opportunity to work within a well-established delivery team on a variety of civil engineering works, playing a key role in the accurate and safe delivery of site activities. The role covers both self-delivered and subcontracted works. The Role As a Site Engineer, you will be responsible for day-to-day engineering activities on site, with a strong emphasis on setting out and dimensional control. You will support and mentor junior engineers where required and provide technical input across multiple areas of delivery. You will contribute to: RAMS Temporary Works briefs ITPs Weekly progress...
IR35 Status:
Inside IR35

CV-Library Plymouth, UK Contractor
CL
Aug 19, 2026  
Electrical Engineer
Role: Electrical Engineer Rate: to be discussed on application Location: Crewe Contract: 6 months (potential for extension) Role Summary This role is responsible for the end-to-end design, development, validation and ongoing support of Electrical and Electronic (EE) systems within a systems engineering environment. Working collaboratively across engineering teams and wider group counterparts, the successful candidate will deliver technical solutions that meet project timing, cost and quality objectives while ensuring compliance with regulatory and company standards. Role & Responsibilities of an Electrical Engineer Develop and maintain a high level of technical expertise in Electrical and Electronic (EE) systems. Work collaboratively with peers across engineering functions and wider group counterparts. Take ownership of assigned electrical and electronic components, including ECUs and sensor elements. Operate within a systems engineering environment using a...
IR35 Status:
Inside IR35

CV-Library Crewe, UK Contractor
CL
Aug 19, 2026  
Application Operations Engineer
The essentials Role: Application Operations Engineer (OPV Vortex platform) Location: Exeter - around 1 day per week on site, rest remote Rate: £(Apply online only)/day (inside IR35 via umbrella) Contract length: 12 months Clearance: Active SC clearance strongly preffered Interview: 1 stage, MS Teams, conversational / suitability based About the role You would join the OPV Vortex Support Team, supporting a new platform that operational meteorologists use to create forecasts, eventually replacing several legacy tools. Your work directly impacts how forecasting products are configured, delivered and maintained. Key responsibilities Configure data products on the Vortex platform, including template logic and output layouts (using languages such as Handlebars.js / Mustache.js and Typst). Onboard new products end‑to‑end, working closely with Product Managers, Service Delivery Managers and operational users. Reconfigure / optimise products as requirements evolve and usage grows....
IR35 Status:
Inside IR35

CV-Library Exeter, Devon Contractor
CL
Aug 19, 2026  
Application Operations Engineer
Role: Application Operations Engineer Contract Duration: 12 Months Inside IR35 via Umbrella Location: Exeter Job Description Responsible for supporting, managing, and maintaining single applications or full application services suites. Key tasks include monitoring, batch process management, and user/security administration. May also involve end-user computing tasks like technical troubleshooting, hardware maintenance, and collaborating with Incident or Problem Managers. Team and Platform Context The OPV Team supports forecasting platforms for Operational Meteorologists. This role joins the OPV Vortex Support Team to support Vortex (introduced in 2025 to replace legacy systems) during its ongoing development and deployment. The primary focus is configuring and managing data products to ensure seamless usage. Key Responsibilities Configure Vortex products using template logic (Handlebars.js/Moustache.js) and layout languages (Typst). Collaborate with Product and Service...
IR35 Status:
Inside IR35

CV-Library Exeter, Devon Contractor
CL
Aug 19, 2026  
Mechanical Design Consultant
Our client, a Defence and Security supplier is looking for a Mechanical Design Engineer to join them on a contract basis at their site in Maidenhead. Due to the nature of the role, applicants must hold the sole British nationality and current SC Clearance 6-month initial contract Rate is open to negotiation, inside IR35 Fully onsite in Maidenhead due to the nature of the role Job Description: Design, develop, test, and document mechanical assemblies through the full product lifecycle. Deliver robust mechanical solutions using company engineering tools and processes. Create and review mechanical documentation: design packs, analysis reports, plans, and procedures. Define and analyse mechanical performance and functional behaviours. Optimise designs for various manufacturing methods (machining, moulding, extrusion, sheet metal, casting). Perform tolerance analysis for precision parts and complex assemblies. Produce designs compliant with MIL‑STD, DEF‑STAN, EMC, TEMPEST, and...
IR35 Status:
Inside IR35

CV-Library Maidenhead, Berkshire Contractor
CL
Aug 19, 2026  
Senior Project Engineer - Rotary Piling
Senior Project Engineer – Rotary Piling Location: Central London Rate: £400–£500 per day (Inside IR35) Duration: Minimum 6 months Start Date: Immediate Carmichael UK are seeking an experienced Senior Project Engineer to join a major infrastructure project in Central London. This is an excellent opportunity for a skilled engineering professional with specialist expertise in rotary piling and complex ground conditions to play a key role on a high-profile civils scheme. Key Responsibilities Oversee and manage rotary bored piling operations, ensuring works are delivered safely, efficiently and to specification. Manage support fluid (polymer) systems, including quality control procedures and compliance with project-specific quality plans. Monitor and inspect piling and diaphragm wall activities throughout the construction process. Carry out or oversee pile shaft and diaphragm wall panel inspections prior to concreting using technologies such as Sonic Caliper and Koden...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
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