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Contractor 26
Inside IR35 Pontypridd

26 jobs found in Pontypridd

CL
Apr 29, 2026  
Sub Agent
Sub Agent Rail & Civil Engineering (Bryn Station Project) 9 month contract opportunity Rate: £400 - £425 per day (Inside IR35 - Umbrella PAYE) We are seeking an experienced Sub Agent to take ownership of a key package of works on the Bryn Station accessibility upgrade project, specifically focused on the installation of a lift shaft. This role sits at the intersection of civil engineering, rail infrastructure, and temporary works, requiring strong leadership on-site alongside solid technical expertise. You will play a pivotal role in coordinating delivery, ensuring engineering compliance, and driving programme performance within a constrained rail environment. Responsibilities: - Lead and manage a section of works from planning through to successful delivery - Drive site operations, ensuring productivity, safety, and quality targets are met - Interpret and implement engineering drawings, specifications, and technical requirements - Coordinate with designers,...
IR35 Status:
Inside IR35

CV-Library Bryn, Port Talbot SA13, UK Contractor
CL
Apr 09, 2026  
Aircraft Structural Fitters
MPI are looking for Aircraft Structural Fitters with Composite experience to work on site at Western Approach, Bristol. Contract is for approx. 6 months – and is ongoing/rolling contract Rate of pay - Paye: - INSCOPE OF IR35 £23.59 per hour on shift Weekday overtime - £27.65 Weekend overtime - £36.86 ** Likely be up to a couple of weeks on Core Day Shift Training paid at £18.43/per hour ** Shift Pattern: Currently working 12/7 shift on days, 11.5 hour days average 40.25 hrs per week (known as 7 Day Fort Days) all days start from 6.00am to 6.00pm Week 1 – Mon, Tues, Fri, Sat and Sun. Week 2 Wed, Thursday. Duties: As a Skilled Aircraft Fitter with Composite experience, you will be involved in working on a range of aircraft main wing assemblies and sub-assemblies from detail parts, whilst embracing appropriate assembly techniques, tools and fixtures, in accordance with the appropriate technical data and competencies .Assemble composite and metallic aircraft components in line with...
IR35 Status:
Inside IR35

CV-Library Bristol, City of Bristol Contractor
CL
May 02, 2026  
Fluid Mechanical Design Engineer
On behalf of our client, we are seeking a Fluid Mechanical Design Engineer to join on an initial 12-month contract. As a Fluid Mechanical Design Engineer , you will act as the technical lead on an R&T project exploring auto-ignition temperatures for Sustainable Aviation Fuel. Role: Fluid Mechanical Design Engineer Pay: £50 per hour Via Umbrella Location: Filton Contract: Monday- Friday, 35Hours per week, 12 Month contract IR35 Status: Inside Security Clearance: BPSS Responsibilities Lead the team in completing the detailed design phase and passing CDR (critical design review). Develop and implement the build plan. Lead the Verification and Validation of the built test rig and ensure entry into service. Co-ordinate technical activities within the team ensuring correct prioritisation of topics. Support the team in their day to day activities to overcome any technical challenges Essential Skills Experience of working in a test laboratory environment. Experience of...
IR35 Status:
Inside IR35

CV-Library Filton, Gloucestershire Contractor
CL
May 01, 2026  
Senior LSAR Engineer
Senior LSAR Engineer Location: Filton, Portsmouth, or Broad Oak, 1-2 days on site per month Duration: 6 months Rate: £33.00 ph PAYE +£37.48 inclusive of holiday pay or £44.40 ph Umbrella Inside IR35 Role Description The individual in this role will be responsible for the following core engineering tasking: • Screening and integration of engineering information into the project-controlled toolsets, thereby helping to ensure the integration and accuracy of the ILS dataset is maintained. • Supporting alignment of the ILS dataset with third party datasets. • Investigating and responding to queries received by the project pertaining to the data held within our toolsets, as directed by the Project Manager / Helpdesk Lead. Core Duties Typical duties include (but are not limited to): • Screen engineering drawings to create a Product Breakdown Structure within the ILS toolset that is consistent with existing data held. • Integrate the engineering information...
IR35 Status:
Inside IR35

CV-Library Filton, Bristol, UK Contractor
CL
Apr 30, 2026  
Mechanical Design Engineer
Mechanical Design Engineer Location: Filton Contract Length: 12 Months (Likely Extension) Hours: 35 per week (4 days between 7am-7pm) Clearance: BPSS+ (completed by the Client's Security Team), Rate: £50ph Umbrella / £37.38ph PAYE IR35: Inside (Off‑Payroll Working Rules Apply) About the Role Our Client is seeking an experienced Fluid Mechanical Design Engineer to join their Test Centre team and act as the technical lead on an exciting R&T project focused on exploring auto‑ignition temperatures for Sustainable Aviation Fuel (SAF). You will join at the conceptual architecture definition stage and lead the project through detailed design, build, and commissioning - delivering a complete end‑to‑end test rig development project. This role sits within a multi‑disciplinary engineering environment, working alongside Test Means Architecture & Integration teams to deliver a safe, high‑quality technical solution. Key Responsibilities Lead the team through detailed design...
IR35 Status:
Inside IR35

CV-Library Filton, Gloucestershire Contractor
CL
Apr 30, 2026  
SC Cleared ) Senior Migration Engineer (Google Workspace / M365)
SC Cleared ) Senior Migration Engineer (Google Workspace / M365) London / Bristol / Manchester (Hybrid) £550 per day (Inside IR35) 3–6 Month Contract Immediate Start Our client, a central government organisation undergoing a major digital transformation, is seeking a Migration Remediation Resource to support a large-scale Google Workspace to Microsoft 365 migration. This is a hands-on technical role within a high-profile programme, supporting over 13,000 users, where you’ll play a key role in ensuring data is accurately migrated, issues are resolved quickly, and users are supported throughout the transition. You must have active SC Clearence for this position. Role & Responsibilities Act as the primary point of contact for migration-related data remediation issues Troubleshoot and resolve migration failures across Google Workspace and M365 Modify and manage data using Google Admin tools, GAM, and APIs Work closely with migration teams, project delivery, and records...
IR35 Status:
Inside IR35

CV-Library Bristol, UK Contractor
CL
Apr 30, 2026  
FPGA Engineer
Job Title: FPGA Engineer Location: Bristol - Hybrid 3+ days on-site per week Role Type: Contract Duration: 12 months Rate: £60.00 - £80.00 per hour - Inside IR35 Our client, an established engineering consultancy, require an experienced FPGA Engineer to join their multi-disciplined team in Bristol. The FPGA engineer would be responsible for design and development of FPGA designs using VHDL and verifying designs using VHDL or System Verilog. UK citizenship is mandatory to be able to clear the background checks and obtain SC clearance. Current valid SC clearance would be an advantage. What the role of the FPGA Engineer entails: The FPGA engineer would work closely with Systems, Hardware and Software teams to provide FPGA solutions and solve integration problems on complex systems. Creating innovative and robust VHDL-based designs Documenting and recording deliverables Verifying FPGA designs Ensuring configuration management/keeping designs under revision control Providing...
IR35 Status:
Inside IR35

CV-Library Bristol, UK Contractor
CL
Apr 29, 2026  
Senior Design Engineer
Contract Senior Design Engineer We are seeking a highly skilled Contract Senior Design Engineer to support Design in Catia V5 for long-term Aircraft CAD based new projects for the future. This is based on development of wing structure definition to structural sizing, interface and project requirements Toolsets. This is an initial 12 month Inside IR35 contract supporting our end client based in our offices in Bristol. Key Requirements CAD capability to support parametric model generation and update CAD capability to support 2d drawing generation for detail parts and installations Understanding of modelling methodologies and processes Ability to interpret stress sizing data and project requirements to support CAD design solutions Interface management between wing structural components and systems Microsoft office applications - excel, ppt etc. Experience of Catia V5 and Catia V6/3DX Preferred Experience RnT project experience Wing structure design solutions...
IR35 Status:
Inside IR35

CV-Library Bristol, UK Contractor
CL
Apr 29, 2026  
Systems Integration and Proving Trials Engineer
Location: Bristol (3-5 days per week onsite) Duration: 12 month contract Rate: £70ph UMB (Inside IR35) Role details: We are looking for 2 x Integration and System Validation Engineers to support our defence client on a contract basis. Based in Bristol, this opportunity is associated with the Land Ceptor project, involving collaboration with multiple customers and industry partners within the UK and on export contracts. Key Responsibilities: Work with stakeholders across the project, from within partner companies and from the customer community, to plan trials to demonstrate integration and gather evidence to qualify Land Ceptor into a wider System of Systems environment Liaise with the systems engineering team and design teams to ensure adequate trials data is acquired and to investigate and resolve design issues. Analyse and report on in-depth analysis of the system behaviour across its internal and external interfaces. Deliver trials in a number of environments, including:...
IR35 Status:
Inside IR35

CV-Library Bristol, UK Contractor
CL
Apr 26, 2026  
Integration and System Validation Engineer
World Class Defence Organisation is currently looking to recruit 2x Integration and System Validation Engineer subcontractors on an initial 12 month contract.     The role would suit a candidate with the below experience: Network systems and protocols, experience of switch and router configuration and management Fault finding and route cause analysis at subsystem integration level Doors/ETM would be desirable Rate: £70.00 per hour Location: Bristol Hybrid / Remote working: 3-5 days on site; rest remote; lab-based position Contract: 37 Hours per week Overtime: Hours worked over 37 hours per week will be calculated at ‘time and a quarter’ Duration: 12 Months (initially and then ongoing and long-term thereafter) IR35 status: Inside IR35 (Umbrella)                                                                                                                                           Interview Process: One stage Video Interview Integration and System Validation Engineer Job...
IR35 Status:
Inside IR35

CV-Library Bristol, UK Contractor
CL
Apr 26, 2026  
Systems Trials Engineer
Systems Trials Engineer 12 month contract Based in Bristol Offering up to £70ph Inside IR35 Do you have experience planning and delivering trials to demonstrate systems integration into a wider systems-of-systems environment? Do you have experience with DOORS and Engineering Test Management requirements tools? Do you want to work with an industry-leading company? If your answers are yes to these, then this could be the role for you! As the Systems Trials 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: Work with stakeholders across the project, from within partner companies and from the customer community, to plan trials to demonstrate integration and gather evidence to qualify the product into a wider System of...
IR35 Status:
Inside IR35

CV-Library Bristol, UK Contractor
CL
Apr 18, 2026  
C++ Application Software Engineer
World Class Defence Organisation is currently looking to recruit 3x C++ Application Software Engineer subcontractors on an initial 12 month contract.     This role requires: Strong experience in C++ application development. A strong background in software engineering, its realisation and system wide impact. Experience in CI/CD pipelines, GitLab, Docker. Experience of developing software for virtual environments.  Rate: £65.00 per hour Location: Bristol Hybrid / Remote working: The role will likely be onsite – a compressed 4 day week (Monday to Thursday is fine).  There may be some scope for hybrid working (project dependent). Contract: 37 Hours per week Overtime: Hours worked over 37 hours per week will be calculated at ‘time and a quarter’ Duration: 12 Months (initially and then ongoing and long-term thereafter) IR35 status: Inside IR35 (Umbrella)...
IR35 Status:
Inside IR35

CV-Library Bristol, UK Contractor
CL
Apr 18, 2026  
Embedded Software Engineer
World Class Defence Organisation is currently looking to recruit 2x Embedded Software Engineer subcontractors on an initial 6 month contract.     Rate: £68.00 per hour Location: Bristol Hybrid / Remote working: The role will be onsite – a compressed 4 day week (Monday to Thursday is fine) 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)                                                                                                                                           Interview Process: One stage Video Interview Embedded Software Engineer Job Description: We are a world leader in missile and missile systems, seeking a highly capable and adaptable Embedded Software Engineer to join our Development Facility in Bristol. As part of our growing dynamic Software team, you will develop the latest...
IR35 Status:
Inside IR35

CV-Library Bristol, UK Contractor
CL
Apr 17, 2026  
Systems Performance Modelling Engineer
World Class Defence Organisation based in Stevenage and Bristol is currently looking to recruit a Systems Performance Modelling Engineer subcontractor on an initial 12 month contract.  Your base site can be either Stevenage or Bristol, depending on your preference. The role can be worked on a 4 day week basis (Monday to Thursday) but due to the nature of the work, the position will need to be based onsite.     This role would be suitable for a Simulation and Modelling Engineer (Matlab / Simulink) ideally from the defence or aerospace industry.   Rate: £80.00 per hour Location: Your base site can be either Stevenage or Bristol, depending on your preference Hybrid / Remote working: The role will based onsite.  A compressed 4-Day week of Monday to Thursday is possible Contract: 37 Hours per week Overtime: Hours worked over 37 hours per week will be calculated at ‘time and a quarter’ Duration: 12 Months (initially and then ongoing and long-term thereafter) IR35 status: Inside IR35...
IR35 Status:
Inside IR35

CV-Library Bristol, UK Contractor
CL
Mar 20, 2026  
Test Driven Development Lead
World Class Defence Organisation is currently looking to recruit a Test Driven Development Lead subcontractor on an initial 6 month contract.     Rate: £70.00 per hour Location: Bristol Hybrid / Remote working: The role will be onsite – a compressed 4 day week (Monday to Thursday is fine) 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)                                                                                                                                           Interview Process: One stage Video Interview Test Driven Development Lead Job Description: The UK Embedded Software department is at the core of the company’s projects. We create the complex, highly reliable real-time software that powers our missile systems and their components, ensuring that they provide the performance and...
IR35 Status:
Inside IR35

CV-Library Bristol, UK Contractor
CL
Mar 12, 2026  
C# / C++ Software Engineer
World Class Defence Organisation is currently looking to recruit 5x C# / C++ Software Engineer subcontractors on an initial 12 month contract.  Desktop C# is the expertise the department are looking for; with some experience with C++ but doesn’t need to be overly extensive. Job Title: C# / C++ Software Engineer Rate: £65.00 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 3 or 4 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) C# / C++ Software Engineer Job Description: WSSE are integral in the development of weapon systems and system architectures, and as a result we have developed a capability supporting developments across the full product life cycle.   The team integrate real products, models...
IR35 Status:
Inside IR35

CV-Library Bristol, UK Contractor
CL
Mar 11, 2026  
Java Software Engineer
World Class Defence Organisation is currently looking to recruit a Java Software Engineer subcontractor on an initial 12 month contract.     Job Title: Java Software Engineer Rate: £65.00 per hour Location: Bristol Hybrid / Remote working: The role will be onsite – a compressed 4 day week (Monday to Thursday is fine) Contract: 37 Hours per week Overtime: Hours worked over 37 hours per week will be calculated at ‘time and a quarter’ Duration: 12 Months (initially and then ongoing and long-term thereafter) IR35 status: Inside IR35 (Umbrella)                                                                                                                                           Interview Process: One stage Video Interview Java Software Engineer Job Description: The team, at the Bristol facility, develop solutions for the next generation of Air Defence Systems; developing evolving products whilst maintaining their enviable reputation for safety, performance and dependability. This...
IR35 Status:
Inside IR35

CV-Library Bristol, UK Contractor
CL
Mar 06, 2026  
Senior Finance Business Partner
Senior Finance Business Partner Contract until March 2027 - Inside IR35 Bristol Based (60% onsite) Certain Advantage are recruiting on behalf of our renowned manufacturing client for a Senior Finance Business Partner to work within a procurement ops team providing Financial direction for the Commercial Strategy. You will lead the financial decision process to support commercial decision making in the tendering of detail parts and the subsequent impact of tendering decisions on the financial health and performance of the detail parts supply chain (£200m+). Key challenges in this role will include continuous stakeholder management across multiple interfaces (accounting and procurement up to “Head ofs”), and negotiating with procurement suppliers on key financial topics and performance improvement plans. There will be recurring and ad-hoc activities in this varied role. Typical responsibilities will include; Lead the financial decision process to support commercial decision making...
IR35 Status:
Inside IR35

CV-Library Bristol, UK Contractor
CL
Mar 04, 2026  
Mechanical Design Engineer
World Class Defence Organisation is currently looking to recruit a Mechanical Design Engineer subcontractor on an initial 6 month contract. 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 Mechanical Design Engineer. You will work closely with other functional teams, to develop products to meet our customer’s needs. Within this role...
IR35 Status:
Inside IR35

CV-Library Bristol, UK Contractor
CL
Feb 06, 2026  
Embedded Software V&V Engineer
World Class Defence Organisation is currently looking to recruit 5x Embedded Software V&V Engineer subcontractors on an initial 6 month contract.  Skills in C, C++ or ADA are beneficial.  A defence or aerospace industry background would also be great.   Rate: £70.00 per hour Location: Stevenage or Bristol, depending on your preference. Hybrid / Remote working: Full time on site (occasional work from home day) (The company are happy with a 4 day week) 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) Interview process: 1 stage video interview   Embedded Software V&V Engineer Job Description:   The department create the complex, highly reliable real-time software that powers missile systems and their components, ensuring that they provide the performance and functionality our users require when they...
IR35 Status:
Inside IR35

CV-Library Bristol, UK Contractor
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