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Contractor 42
Engineering Inside IR35 Aylesbury

42 jobs found in Aylesbury

CL
Jun 24, 2026  
QA Site Engineer
QA Site Engineer Location: HS2 Calvert North, Buckinghamshire Rate: £470 per day (Inside IR35) Contract: 6-Month Rolling Contract Are you an experienced QA Site Engineer eager to play a key role in a major UK infrastructure project? This is your chance to work on one of the country's largest civil engineering schemes, supporting complex earthworks and drainage packages while ensuring the highest quality standards. Join a dynamic team and elevate your career with this exciting opportunity for immediate start and long-term growth. About The Role: Manage and oversee quality assurance processes across earthworks and drainage works Conduct inspections, complete quality records, check sheets, and ITPs in line with project specifications Ensure works comply with HS2 standards, drawings, and quality requirements Carry out site audits, identify non-conformances, and manage NCRs to resolution Collaborate with site teams, subcontractors, and stakeholders to uphold quality standardsAbout...
IR35 Status:
Inside IR35

CV-Library Buckinghamshire, UK Contractor
CL
Jun 07, 2026  
Paint Sprayer
Job Description: Paint Sprayer on Rolling Stock Vehicles Position: Paint Sprayer Location: Milton Keynes Rate: £28.54 per hour on Earlies/Afters or £32.58 per hour on Nights (Role is Inside IR35)  Hours: Earlies: 06:00-16:00 / Afters: 12:00-22:00 / Nights: 22:00-06:00 Summary: A Paint Sprayer is responsible for applying paint and other finishes to vehicles, Vehicle components, machinery, equipment, and various surfaces using spray guns. This role involves ensuring a high-quality finish, maintaining equipment, and adhering to safety protocols. Key Responsibilities: - Surface Preparation: - Cleaning, sanding, and masking surfaces prior to painting. - Ensuring surfaces are properly primed and free of defects before application. Painting and Finishing: - Mixing paints to achieve desired colours and consistencies. - Applying paint, varnish, or other finishes using spray guns or other applicators. - Achieving uniform coverage and thickness according to...
IR35 Status:
Inside IR35

CV-Library Milton Keynes, UK Contractor
CL
Jun 27, 2026  
Electrical Test Operations Engineer
Our client has an opportunity for an Electrical Test Operations Engineer to join them on a contract role for 6 months with possible extension. You will be Executing electrical and functional test procedures on engineering test benches and flight spacecraft in accordance with Work Orders, test procedures and processes. Role: Electrical Test Operations Engineer Location: Oxford Hours: Shift work Monday to Sunday - either rotating double day shifts or rotating Early, late ,nights depending on project need. There may be periods of flexible shift depending on project phases. Clearance: SC required before Hourly Rate: £37 per hour via Umbrella, inside IR35 + a 20% shift uplift when working on shift What you'll be doing: Execution of Electrical and Functional test procedures on Engineering test benches and flight spacecraft. Use of the Central Checkout System (CCS), Electrical Ground Support Equipment (EGSE) and Spacecraft Check Out Equipment (SCOE) to support the test activities....
IR35 Status:
Inside IR35

CV-Library Oxford, Oxfordshire Contractor
CL
Jun 19, 2026  
Site Agent
Are you a Site Agent with experience working on access for all schemes?   Do you have proven experience working on stations and structural projects for Network Rail?   This is a fantastic opportunity to join a long-term rail framework with secured future work and the potential to move into wider CP7 projects following successful delivery. The ideal candidate will have experience delivering civil related works on stations for Network Rail.   Rate: £(Apply online only)/day DOE, Umbrella, Inside IR35 Location: Oxford Duration: 12 months You will be joining an established delivery team on a multi million station scheme, working closely with the Project Manager, to drive programme performance and site delivery. There is already a secured CP7 framework pipeline, meaning this role can extend well beyond the initial 12 months. Requirements: ·Previous experience working as a Site Agent on Network Rail infrastructure ·Previous experience delivering Station AFA schemes, civils,...
IR35 Status:
Inside IR35

CV-Library Oxford, UK Contractor
CL
Jun 07, 2026  
C&I Technician (Control & Instrumentation)
C&I Technician (Control & Instrumentation) 1 year Contract  Oxfordshire IR35: Inside   Minimum Requirement: The purpose of this role is primarily expected to provide C&I Technician (Control & Instrumentation) support to the MAST-U facility working across different groups, and on a wide range of control and instrumentation systems. This shall include working both within a workshop environment and on industrial plant to both construct and repair C&I systems, perform bench testing and fault finding.   The Role:  Perform fault finding and repairs to C&I system under supervision, both with and without written test procedures. Provide C&I wire person/panel builder support to Plant Responsible Officers (PROs); to support fault finding and repair work on C&I systems associated with the MAST-U facility. Procure, build, test and commission new plant and equipment (i.e. cubicles, sub racks/assemblies and electronic cards) to defined requirements. Take...
IR35 Status:
Inside IR35

CV-Library Oxford, UK Contractor
CL
Jun 18, 2026  
Tooling Design Engineer
Tooling Design Engineer Ampthill, Bedfordshire Contract (6 months), inside IR35, 37.5h, 4 day working week Monday to Thursday About the Role The Operations Engineering team provides engineering resources to support Operational performance and major product development projects; from design through to engineering build and production support, to end of life of product. The team provides full product lifecycle support including prototype design & build, development and integration of the build documentation and supporting requirements of full production build. This role will be required to provide technical support to the team in the design, development and implementation of industrial tools, jigs, fixtures, prototype model production and machine attachments required for production or experimental use, considering such factors as accessibility, economy, mobility, performance requirements and ensure legislative compliance is adhered to. A thorough working knowledge of CAD...
IR35 Status:
Inside IR35

CV-Library Ampthill, Bedfordshire Contractor
CL
Jun 20, 2026  
Electrical Project Engineer
Role: Electrical Project Engineer Location: Bedfordshire IR35: Inside Hybrid: 3 days on site Project details WwTW project Putting in new ASP, Tertiary treatment, MCCs The engineer will initially be reviewing design drawings from Pell Frischmann - SLDs, P&IDs, MCCs etc. Later site work will be liaising with subcontractors, working with supervisors to manage the packages, and determining control philosophies. Team consists of MEICA
IR35 Status:
Inside IR35

CV-Library Bedfordshire, UK Contractor
CL
Jun 17, 2026  
Electrical Technician
Electrical Technician – Abingdon - £30-45phr An Electrical Technician is required ASAP on a long-term contract basis (inside IR35) for a growing and interesting company in the Abingdon area. The Electrical Technician will be responsible for * Electrical installation * Commissioning * Panel wiring * Rack building and wiring * Electrical machine installation The ideal Electrical Technician will have: * Electrical qualification * LV electrical experience * Industrial biased experience – manufacturing, special purpose machinery process, energy etc. * PLC Controls and Instrumentation knowledge desirable In return the Electrical Technician will get the opportunity to join a well-established company offering very interesting work, and long term contract opportunities. If you’re an Electrical Technician with previous installation and commissioning experience, apply now to find out more
IR35 Status:
Inside IR35

CV-Library Abingdon, Oxfordshire Contractor
CL
Jun 21, 2026  
Senior Civil Design Engineer
Job Title: Civil Engineer Salary: £50 - £60 (dependent on experience) Location: Reading Type: Contract - Inside IR35, hybrid working About the Role: Our client is seeking a Civil Engineer with 5+ years' experience who is ready to hit the ground running. You'll work closely with a senior engineer on a diverse portfolio of projects, including large-scale civil schemes and complex mechanical and electrical designs. Your work will cover design development and, when design work slows, involvement in project management and commercial activities. This role offers significant development opportunities due to the breadth of experience it provides. About Our Client: Our client is a well-established engineering organisation delivering innovative and complex infrastructure projects across the UK. They value versatility, technical expertise, and the opportunity for engineers to develop across multiple disciplines. Key Responsibilities: Design development across civil, mechanical, and...
IR35 Status:
Inside IR35

CV-Library Reading, Berkshire Contractor
CL
Jun 27, 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
Jun 21, 2026  
Mechanical Engineer - Certification & Validation
Mechanical Engineer - Certification & Validation Location: Stevenage (Hertfordshire) Duration: 6 months (extension possible) Rate: £50 p/h Umbrella IR35: Inside Clearance: SC (BPSS to start possible) / UK Eyes Only (UKEO) Working pattern: 2 days minimum onsite, remainder remote Overview An opportunity to become part of Europe's No. 1 Missile Systems Designer, as a Mechanical Design Engineer. You will work closely with other functional teams, to develop products to meet our customer's needs. Within this role you will have the opportunity to work as part of a multi-disciplinary team to work on the certification and validation activities to allow a new product to be delivered into service with international customers. Responsibilities: Support the Mechanical Certification Lead Engineer on generating evidence statements against Mechanical Requirements. * Interpreting Test reports from subsystem, inert and live munition testing * Interfacing with the Systems team,...
IR35 Status:
Inside IR35

CV-Library Stevenage, Hertfordshire Contractor
CL
Jun 20, 2026  
Mechanical Design Engineer
Mechanical Design Engineer 12 month contract Based in Stevenage Offering £50ph Inside IR35 Do you have experience using CREO? Do you have experience carrying out mechanical design and proving activities? Do you want to work with an industry-leading company? If your answer to these is yes, then this could be the role for you! As the Mechanical Design Engineer, you will be working alongside a market-leading Defence and Aerospace company who are constantly growing and developing. They are always looking to bring on new talents such as yourself and further develop your skills to enable you to grow within the company and industry. You will be involved in: Carry out Mechanical Design and proving activities as part of a wider team for prime and variant products, of both piece parts and assemblies Support/liaise with manufacturing, resolving manufacturing problems & defects Support the functional & environmental testing and trials Liaise with suppliers/purchasing to...
IR35 Status:
Inside IR35

CV-Library Stevenage, Hertfordshire Contractor
CL
Jun 20, 2026  
Mechanical Engineer – Certification & Validation
World Class Defence Organisation is currently looking to recruit a Mechanical Engineer – Certification & Validation subcontractor on an initial 6 month contract. Rate: £50.00 per hour Location: Stevenage Hybrid / Remote working: 2 days a week onsite, the rest working remotely from home. Contract: 37 Hours per week Overtime: Hours worked over 37 hours per week will be calculated at ‘time and a quarter’ Duration: 6 Months (initially and then ongoing and long-term thereafter) IR35 status: Inside IR35 (Umbrella) Mechanical Engineer – Certification & Validation Job Description: An opportunity to become part of Europe’s No. 1 Missile Systems Designer, as a Mechanical Design Engineer. You will work closely with other functional teams, to develop products to meet our customer’s needs. Within this role you will have the opportunity to work as part of a multi-disciplinary team to work on the certification and validation activities to allow a new product to be delivered into...
IR35 Status:
Inside IR35

CV-Library Stevenage, UK Contractor
CL
Jun 14, 2026  
Systems Design Engineer
World Class Defence Organisation is currently looking to recruit 2x Systems Design Engineer subcontractors on an initial 12 month contract.   Rate: £80.00 per hour Overtime Rate: Hours worked over the standard 37 hours per week, will be paid at ‘time and a quarter’ Location: The role can be based either from the companies Stevenage, Bolton or Bristol sites Hybrid / Remote working: circa 4 days onsite (more remote working may be possible) Duration: 12 Months with very likely extension. Contracts are often ongoing and long-term thereafter IR35 status: Inside IR35 (Umbrella) Interview process: One stage video interview   Systems Design Engineer Job Description: Seekers department develop RF Seekers for use in Missile products.  Responsibilities: Working as part of team developing system architecture and design utilising MBSE. Deriving and managing requirements Communicating with various stakeholders with the Seeker team and the external customer and suppliers Developing Physical...
IR35 Status:
Inside IR35

CV-Library Stevenage, UK Contractor
CL
Jun 12, 2026  
Mechanical Design Draughtsperson
World Class Defence Organisation is currently looking to recruit a Mechanical Design Draughtsperson subcontractor on an initial 6 month contract. Rate: £45.00 per hour Location: Stevenage Hybrid / Remote working: 2 days a week likely onsite.  The rest working from home Contract: 37 Hours per week Overtime: Hours worked over 37 hours per week will be calculated at ‘time and a quarter’ Duration: 6 Months (initially and then ongoing and long-term thereafter) IR35 status: Inside IR35 (Umbrella)  Mechanical Design Draughtsperson Job Description: An opportunity to become a member of Europe’s No. 1 Missile Systems company as a design draughtsperson in the mechanical engineering function, you will work closely with a wide range of project teams to develop definitions to meet our manufacturers and customer’s needs. Responsibilities: Must have a strong background in the ability to create 2D and 3D definitions. In this role, you will develop the 2D and 3D definitions working with the...
IR35 Status:
Inside IR35

CV-Library Stevenage, UK Contractor
CL
Jun 07, 2026  
Mechanical Systems Engineer / Architect
World Class Defence Organisation is currently looking to recruit a number of Mechanical Systems Engineer / Architects on an initial 6 month contract.  The department can have the role based from either the Stevenage, Bristol or Bolton sites.   This role would suit a candidate who comes from a strong background of working as a Mechanical Design Engineer, Mechanical Systems Engineer, Mechanical Architect or has experience of Mechanical Systems Architecture.  A defence / aerospace background is ideal but not essential. DOORS experience would be great.    Rate: £60.00 per hour Overtime Rate: Hours worked over the standard 37 hours per week, will be paid at ‘time and a quarter’ Location: Stevenage, Bolton or Bristol depending on your preference Hybrid / Remote working: 3-4 days onsite needed. Will be 5 days onsite to begin with due to training needs Duration: 6 Months with very likely extension. Contracts are often ongoing and long-term thereafter.  IR35 status: Inside IR35 (Umbrella)...
IR35 Status:
Inside IR35

CV-Library Stevenage, UK Contractor
CL
Jun 05, 2026  
Electronics Design Engineer
World Class Defence Organisation based in Stevenage (the role can be a split of working Onsite and Working From Home) is currently looking to recruit a number of Electronics Design Engineer subcontractors on an initial 12 month contract.    Electronic Design Engineers with excellent skills in Analogue Design or Digital Design or Power Design or FPGA are sought after.    Job Title: Electronics Design Engineer Rate: £58 per hour Overtime Rate: Hours worked over 37 hours per week will be calculated at ‘time and a quarter’ Location: Stevenage Hybrid / Remote working: This role will involve some remote working opportunities Contract: 37 Hours per week Duration: 12 Months (initially and then ongoing and long-term thereafter) IR35 status: Inside IR35 (Umbrella)   Electronics Design Engineer Job Description: The Electronic Engineering function is a friendly and supportive environment. Within the function, you will be working with other engineers who have a collective wealth of...
IR35 Status:
Inside IR35

CV-Library Stevenage, UK Contractor
CL
May 23, 2026  
Mechanical Design Engineer
World Class Defence Organisation is currently looking to recruit a Mechanical Design Engineer subcontractors on an initial 6 month contract. This role would suit a Mechanical Design Engineer who comes from a strong Defence or Aerospace background has strong Creo / PRO-E skills.         Job Title:  Mechanical Design Engineer Rate: £50.00 per hour Location: Stevenage or Bristol – depending on your preference Hybrid / Remote working: 4 days a week likely onsite (likely could be lower on a week by week basis; depending on work). 1 day remote. (flexible on start and finish time). A compressed 4 day week (Monday to Thursday) a possibility. Contract: 37 Hours per week Overtime: Hours worked over 37 hours per week will be calculated at ‘time and a quarter’ Duration: 6 Months (initially and then ongoing and long-term thereafter) IR35 status: Inside IR35 (Umbrella) Mechanical Design Engineer Job Description: An opportunity to become part of Europe’s No. 1 Missile Systems Designer, as a...
IR35 Status:
Inside IR35

CV-Library Stevenage, UK Contractor
CL
May 16, 2026  
Principal Thermal Engineer
World Class Defence Organisation based in Stevenage, Hertfordshire is currently looking to recruit a Principal Thermal Engineer Subcontractor on an initial 12 month contract.   Hourly Rate: £50.00  Overtime Rate: Hours worked over the standard 37 hours per week, will be paid at ‘time and a quarter’ Location: Stevenage Hybrid / Remote working: The role will likely be onsite 3 days per week. Duration: 12 Months with very likely extension. Contracts are often ongoing and long-term thereafter.  IR35 status: Inside IR35 (Umbrella) Interview process: One stage onsite interview   Principal Thermal Engineer Job Description: The Mechanical Analysis Group are looking for a Principal Thermal Engineer to join its team in Stevenage. The group consists of over 30 engineers working across a wide spectrum of cutting-edge military systems. Working for an internationally recognised company, you will play a critical role in ensuring that products deliver the necessary performance against key...
IR35 Status:
Inside IR35

CV-Library Stevenage, UK Contractor
CL
May 15, 2026  
V&V Systems Engineering Specialist
World Class Defence Organisation is currently looking to recruit a Verification and Validation Systems Engineering Specialist subcontractor on an initial 12 month contract.  Rate: £85.00 per hour Overtime Rate: Hours worked over 37 hours per week will be calculated at ‘time and a quarter’ Location: Stevenage or Bristol (depending on your preference) Hybrid / Remote working: The role will be a hybrid role of on average 2 days per week onsite Contract: 37 Hours per week Duration: 12 Months (initially and then ongoing and long-term thereafter) IR35 status: Inside IR35 (Umbrella) V&V Systems Engineering Specialist Job Description: The Test & Evaluation team are looking for a V&V Systems Engineering Specialist to operate with a high-level of technical responsibility for the entire lifecycle of our product, ranging from design and development to qualification and deployment. A specialist will bridge the gap between design and production, ensuring that complex,...
IR35 Status:
Inside IR35

CV-Library Stevenage, UK Contractor
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