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Inside IR35 Contractor Mountain Ash

38 jobs found in Mountain Ash

CL
Jul 01, 2026  
Data Governance Lead
JOB DETAILS - £450-£550 Per Day - Inside IR35 - 3-5 Days per week in either Cardiff or Newport office. - 6-Month contract SKILLS - Extensive experience in leading Data Governance projects. - Strong skills in creating policy documents in relation to Data Quality and Data Cleansing. - In-depth understanding of creating a framework to improve data efficiency and compliance. - Strong communication skills with senior stakeholders. RESPONSIBILITIES - Implement an enterprise data governance framework to roll out DQaaS (Data Quality as a Service) to define Data Subject Areas (DSAs).- Mapping Create, Read, Update, Delete (CRUD) responsibilities across systems. - Achieve Data Quality targets in migration in alignment with the programme plan. - Drive Data owner and steward engagement for issue resolution. - Provide Data Quality reporting and insights to establish regular reporting to monitor progress and inform decision-makers. - Embed sustainable Data Governance post-migration to ensure...
IR35 Status:
Inside IR35

CV-Library Cardiff, UK Contractor
CL
Jun 28, 2026  
1st/2nd Line Support
1st / 2nd Line Support Engineer 3 month-contract, Inside IR35 £125 to £150 per day, depending on experience Central Cardiff Are you an experienced 1st / 2nd Line Support Engineer looking for a contract role where you can get hands-on with hardware, desktop deployments and day-to-day IT support in a fast-paced environment? This is a varied support role focused on providing 1st and 2nd line IT assistance across a busy contract services environment. You will be responding to tickets, resolving common user issues and getting involved in practical, hands-on IT work. You will support end users with password resets, Outlook issues and general desktop support, while also assisting with auditing, deploying and configuring desktops. The role requires someone comfortable working with physical hardware, including laptops, printers and basic server-related tasks. This is an on-site position based in Central Cardiff, offering consistent working hours and the opportunity to broaden your...
IR35 Status:
Inside IR35

CV-Library Cardiff, UK Contractor
CL
Jun 27, 2026  
Rail Structures Project Manager
Are you a Civil / Structural Project Manager with rail infrastructure experience?   Do you have NEC4 contract experience?   Job Title: Project Manager Location: Cardiff (Office & Site Based) Rate: £400 - £475 per day (CIS / Inside IR35 via Umbrella) Contract: Long-Term Contract Start Date: ASAP   Looking for a long-term infrastructure contract where you can take ownership of a major project from pre-construction through to delivery?   This is an opportunity for an experienced Project Manager to lead the delivery of a flagship Access for All scheme in Cardiff, involving the construction of a new bridge structure providing improved access and connectivity to a local university. With detailed design nearing completion and construction commencing this autumn, you'll play a key role in delivering a high-profile infrastructure project.   The role will suit a client-facing Project Manager with a strong structures background who is comfortable managing multidisciplinary...
IR35 Status:
Inside IR35

CV-Library Cardiff, UK Contractor
CL
Jul 01, 2026  
Procurement Professional
Procurement Professional - 12 month contract - Glascoed, Monmouthshire or Radway Green, Cheshire or Preston, Lancashire - £32.18 ph UMB or £24 ph PAYE (Inside IR35) The Umbrella rate quoted above is the Gross Umbrella rate (i.e. the rate we pay to the Umbrella Company inclusive of ALL employment costs). Please note, the rate paid by the Umbrella will be less, as will a Limited Deemed rate or Agency PAYE rate. Please get in touch to discuss the rates via these different payment vehicles. The Role Role Responsibilities: Not limited to… § Engage with internal and external stakeholders to ensure the product or service provision: o Meets the governance requirements of the business and our customers. o Delivers optimum value for money. o Achieves the required service level as agreed with internal stakeholders. § Seek out and champion opportunities for continuous improvement. § Ensure priorities are managed and any issues of concern are escalated. § Demonstrate a good...
IR35 Status:
Inside IR35

CV-Library Usk, Monmouthshire Contractor
CL
Jun 26, 2026  
Application Software Engineer C
Application Software Engineer C++ JOB LOCATION: BRISTOL SECURITY CLEARANCE LEVEL: SC to Start DURATION: 12+ Months (Extension Possible) WORK PATTERN: Full Time ONSITE (Compressed Option Available) - Could be flex every now & then (work dependent). RATE: £ 65.00 Per hr on Umbrella (Inside IR35) TARGET INDUSTRIES AND COMPANIES. Is Defence a must? If not what industries can be considered Preferable for Defence/Aero; not essential if skill sets are apparent from others (Mathematics/algorithm background). ALTERNATIVE JOB TITLES IN OTHER COMPANIES OR INDUSTRIES - Essential Skillset & Tools * 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. Overview: * The team is implementing a demonstration system for a complex new Command and Control application, which...
IR35 Status:
Inside IR35

CV-Library Bristol, City of Bristol Contractor
CL
Jun 28, 2026  
Mechanical / Fuel Systems Installation Design Engineer
Mechanical / Fuel Systems Installation Design Engineer Filton - 100% on-site 35 hours per week | 4.5-day working pattern IR35: Inside Shape the future of air travel with Guidant Global Guidant Global is proud to be recruiting on behalf of Airbus, a world leader in aerospace, for an experienced Mechanical / Fuel Systems Installation Design Engineer to join a highly skilled Wing Engineering Design team based in Filton. This is a fantastic opportunity to work at the forefront of aircraft innovation, contributing to the design and development of fuel and mechanical systems across Airbus' commercial aircraft programmes. You'll be part of a collaborative, multinational engineering community that values quality, innovation and continuous improvement. The role As a Mechanical / Fuel Systems Installation Design Engineer, you will play a key role in delivering safe, efficient and manufacturable system designs from concept through to in‑service support. Working within a supportive and...
IR35 Status:
Inside IR35

CV-Library Filton, Gloucestershire Contractor
CL
Jun 25, 2026  
Configuration Change Manager
Configuration Change Manager Filton (Hybrid - 60% onsite) £35.71 per hour PAYE / £47.76 per hour Umbrella 35 hours per week | 4.5-day working pattern Guidant Global is partnering with a world-leading aerospace organisation to recruit Configuration Change Managers to support high-profile programmes within the A320 family. This is a fantastic opportunity to play a key role in managing complex engineering changes, driving accuracy, compliance, and delivery across a fast-paced and highly regulated environment. About the Role As a Configuration Change Manager, you will take ownership of the end-to-end change process, ensuring configuration data is accurate, controlled, and aligned with programme requirements. Working cross-functionally with engineering, manufacturing, and project teams, you will help drive change governance, support industrialisation, and ensure modifications are delivered on time, to cost, and to quality standards. Key Responsibilities Lead and manage the...
IR35 Status:
Inside IR35

CV-Library Filton, Gloucestershire Contractor
CL
Jul 01, 2026  
Senior Systems Engineer
Senior Systems Engineer Location: Bristol (20% onsite / 80% remote) Duration: Initial 6-month contract with strong extension potential Rate: £60-£65 per hour (Inside IR35) Security Clearance: Active SC Clearance required The Opportunity We are seeking an experienced Senior Systems Engineer to support the development of complex defence and aerospace capabilities. This role offers the opportunity to work across the full systems engineering lifecycle, helping to shape future operational solutions through requirements engineering, systems architecture, and Model-Based Systems Engineering (MBSE) approaches. Working within a collaborative, multidisciplinary environment, you will engage with a wide range of stakeholders to understand operational needs, develop robust system architectures, and ensure requirements are effectively managed and traced throughout the engineering lifecycle. Key Responsibilities Capture, analyse and refine stakeholder needs into clear, structured...
IR35 Status:
Inside IR35

CV-Library Bristol, UK Contractor
CL
Jul 01, 2026  
Principal Supportability Engineer
Principal Supportability Engineer Bristol Paying up to £87.50p/h (Inside IR35) Key Responsibilities Conduct Supportability Analysis to influence design and ensure the system is and remains supportable to meet Front Line Command user requirements. Assist in collaborating between the MOD (Defence Equipment & Support - DE&S) and industry contractors. Analyse evidence in order to baseline and identify opportunities to improve Resilience, Agility and Preparedness (RAP) during Transition to Conflict (TTC) and Conflict. Understanding of the processes to optimise in-service support solutions and processes (to include Support assurance documentation and obsolescence management). Required Experience Good working knowledge of DEFSTAN 00-600 and S3000 series. Experience in ILS, supportability, or engineering within the defence sector. Experience in the Military Air Environment, preferably in Combat Air. Excellent communications skills Disclaimer: This vacancy is being...
IR35 Status:
Inside IR35

CV-Library Bristol, UK Contractor
CL
Jul 01, 2026  
ILS Manager - SC Cleared
Integrated Logistics Support (ILS) Manager Location: Bristol (20% onsite / 80% remote) Security Clearance: Active SC Clearance Required Rate: £80-£84 per hour (Inside IR35) Contract Length: Initial 6 months, rolling extension expected Role Overview We are seeking an experienced ILS Manager to lead the development, delivery, and governance of Integrated Logistics Support (ILS) activities across complex aerospace and defence programmes. The successful candidate will be responsible for defining and implementing support solutions that ensure operational availability, maintainability, and through-life affordability of military air systems. Working closely with customers, engineering teams, industry partners, and defence stakeholders, the ILS Manager will ensure that supportability considerations are embedded throughout the system lifecycle, from design and development through to in-service support. This is a key role supporting the delivery of resilient support solutions for...
IR35 Status:
Inside IR35

CV-Library Bristol, UK Contractor
CL
Jul 01, 2026  
Principal Supportability Engineer
Principal Supportability Engineer (Level 6) Location: Bristol (predominantly onsite, approximately 90% of the time) Duration: 6 Months (Inside IR35) Rate: £87.50 per hour Umbrella We seek an engineer with recent high-integrity or safety-critical industry experience (defence, aerospace, or similar), or eligible for UK security clearance. An opportunity for an experienced Principal Supportability Engineer to support a major defence aerospace programme. The role focuses on developing and optimising support solutions throughout the system lifecycle, ensuring operational readiness, resilience, and long-term supportability within a military air environment. Key Responsibilities Conduct supportability and Integrated Logistics Support (ILS) analysis to influence system design and in-service support strategies. Develop and maintain support solutions that meet operational and frontline user requirements. Analyse supportability evidence to identify opportunities to improve resilience,...
IR35 Status:
Inside IR35

CV-Library Bristol, UK Contractor
CL
Jun 28, 2026  
Senior Systems Engineer
Senior Systems Engineer Location: Bristol (20% onsite / 80% remote) Duration: Initial 6-month contract with strong extension potential Rate: £60-£65 per hour (Inside IR35) Security Clearance: Active SC Clearance required The Opportunity We are seeking an experienced Senior Systems Engineer to support the development of complex defence and aerospace capabilities. This role offers the opportunity to work across the full systems engineering lifecycle, helping to shape future operational solutions through requirements engineering, systems architecture, and Model-Based Systems Engineering (MBSE) approaches. Working within a collaborative, multidisciplinary environment, you will engage with a wide range of stakeholders to understand operational needs, develop robust system architectures, and ensure requirements are effectively managed and traced throughout the engineering lifecycle. Key Responsibilities Capture, analyse and refine stakeholder needs into clear, structured...
IR35 Status:
Inside IR35

CV-Library Bristol, UK Contractor
CL
Jun 28, 2026  
Senior Systems Engineer
Senior Systems Engineer (Ref: 1674) Initial 6-month contract 2-3 days onsite in Bristol p/w £68.81ph, UMB inside IR35 SC to start - UKEO Experience capturing and analysing stakeholder needs to guide the development of service solutions suitable for future operational environments. Experience applying Model‑Based Systems Engineering (MBSE) approaches to develop service and product system architectures in response to stakeholder requirements. Experience generating Use Cases and conducting Functional Analysis to support requirements refinement and validation. Experience managing requirements and maintaining traceability throughout the engineering lifecycle. A solid understanding of the engineering lifecycle and how early technical decisions impact later development and support phases. The ability to balance competing needs and constraints using structured methods such as trade studies. Strong interpersonal and collaboration skills, with the ability to influence, communicate...
IR35 Status:
Inside IR35

CV-Library Bristol, UK Contractor
CL
Jun 27, 2026  
Mechanical Fitter
Mechanical Fitter (Special Purpose Machinery) 3 Month Contract (Possibility to be extended) £20.00 - £25.00 per hour (Inside IR35) Monday - Friday / 37 - 50 hours per week Bristol, commutable from: Bath, Longwell Green, Kingswood, Hanham, Keynsham, Brislington, Knowle, Hengrove, Emersons Green, Saltford, Barrs Court, Are you a Mechanical Fitter looking for an immediately available, days based contract role for a market leading manufacturing company with guaranteed overtime available? Due to company growth, they now have a new positions for a Mechanical Fitter to join their team with immediate effect on a days based contract with overtime available. The ideal candidate will be immediately available, with the ability to assemble / build Special Purpose Machinery from CAD / Technical Engineering Drawings. This is an immediate start with the potential to go beyond 3 months, where you'll be paid an excellent rate at a leading engineering company that are at the forefront of...
IR35 Status:
Inside IR35

CV-Library Bristol, UK Contractor
CL
Jun 27, 2026  
Stress Engineers - Composite Aerostructures - Filton , UK
Stress Engineers - Composite Aerostructures - Filton , UK. Our Aerospace client based in Filton, Bristol, UK, require several Stress Engineers to support a new defence aerostructures design program. Candidates with good  Aerostructures Analysis experience are sought, who have experience of composites.. This role is offered on a contract basis inside IR35 regulations and is therefore paid PAYE through Strongfield Consultants. Candidates should be prepared to under go BPSS Security Clearance for this role initially with possibility of higher clearance later with Hybrid working week of 3 days onsite and 2 days at home. Rate is negotiable depending upon experience level
IR35 Status:
Inside IR35

CV-Library Bristol, UK Contractor
CL
Jun 25, 2026  
DIG PNT Test Engineer
V06069 – DIG – PNT Test Engineer Filton 1 position (part time)  This role will be 60-80 days over a 6 months period starting in October 2026 Full time on site SC Subject to ITAR Inside IR35 Role Description We are looking to recruit a Test Engineer to conduct comprehensive testing of Positioning, Navigation and Timing (PNT) equipment. This role supports the validation, verification, and performance assessment of PNT systems to ensure operational reliability and compliance with mandated standards. This is a 6-month (0.5 FTE) role commencing October. Flexibility to adjust working days within the week may be required to meet testing schedules. Your primary place of work will be Filton, Bristol, but you will be expected to travel to various UK locations to engage with end-users and conduct test events on a regular basis. It is envisaged there will be up to 3 weeks of overseas travel. Core Duties Typical duties include (but are not limited to): ·...
IR35 Status:
Inside IR35

CV-Library Bristol, UK Contractor
CL
Jun 25, 2026  
Software Engineer
World Class Defence Organisation based in Bristol is currently looking to recruit 3x Software Engineer subcontractor on an initial 12 month contract, with very likely extension.  The role will be onsite 4 days per week.  A 4 day working week is OK (Monday to Thursday).   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: Bristol Hybrid / Remote working: The role will be onsite 4 days per week. A 4 day working week is OK (Monday to Thursday).  Possibility of some remote working (project dependant) 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   Job Description: The role is within a team implementing a demonstration system for a complex new Command and Control capability, this extends existing concepts and logic. If the demonstration is successful, it may develop...
IR35 Status:
Inside IR35

CV-Library Bristol, UK Contractor
CL
Jun 25, 2026  
Application Software Engineer
Application Software Engineer 12-month contract Onsite in Bristol SC must be in place prior io starting £65ph, UMB, inside IR35 Our client, a leading organisation in the Defence & Security sector, is currently seeking an Application Software Engineer for a contract position in Bristol. This role involves participating in the development and testing of a Command and Control application system, with the potential for significant impact on future projects if the demonstration is successful. Key Responsibilities: Developing application-level software, including sophisticated business logic Collaborating with internal algorithm teams to integrate algorithms and test complex transformation logic Implementing and integrating interfaces with other subsystems and external simulators Building and extending components within an existing software application framework Deploying applications into a virtualised test environment Ensuring software solutions meet system requirements within...
IR35 Status:
Inside IR35

CV-Library Bristol, UK Contractor
CL
Jun 21, 2026  
Naval Architect
Job Title: Naval Architect Rate: Negotiable via Umbrella (Inside IR35) Location: Bristol Contract Length: 6 Months Role purpose We are looking for people with a good background understanding of Naval Architecture to join our technical team. The focus of the role is to provide Naval Architecture related advice and guidance to customers within the defence industry. The specific areas of interest include assessing surface ships and submarines to assess their performance in manoeuvring and control, dynamic stability, quasi-static stability, seakeeping, resistance and propulsion. The work will include use of industry standard and bespoke numerical simulation tools. The role requires presenting work in internal and external forums, including conferences and in customer meetings. Participation in business support activities will also be required including bidding and planning activities through the provision of task estimates and breakdowns of task descriptions. The key...
IR35 Status:
Inside IR35

CV-Library Bristol, UK Contractor
CL
Jun 17, 2026  
Project Engineer
World Class Defence Organisation based in Bristol is currently looking to recruit a Project Engineer subcontractor on an initial 12 month contract.   Rate: £50.00 per hour Overtime Rate: Hours worked over the standard 37 hours per week, will be paid at ‘time and a quarter’ Location: Bristol Hybrid / Remote working: circa 4 days onsite 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   Project 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 and synthetic environments to provide visualisations, demonstrations, verification & validation as well as training capability and support. Responsibilities: The role is to support the delivery of...
IR35 Status:
Inside IR35

CV-Library Bristol, UK Contractor
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