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Contractor senior process engineer

154 senior process engineer jobs found

CL
May 05, 2026  
Senior Process Engineer
Location: Warrington, Leicester or Bristol Hybrid working: 3 days/week in the office (some flexibility in this) Contract type: Permanent or Contract (inside IR35) Multiple positions available A leading engineering organisation is seeking experienced Senior Process Engineers to support the delivery of complex engineering and technical activities. This role is ideal for engineers with strong domain knowledge who can work independently, mentor others and contribute to high‑quality engineering outputs across a range of challenging projects. Role Overview: The Senior Process Engineer will manage and deliver engineering activities, applying specialist process knowledge to resolve technical issues, develop solutions and ensure compliance with relevant standards. You will work as part of a multi‑discipline team, supporting both project delivery and the development of less experienced engineers. Key Responsibilities Promote effective collaboration across engineering and wider functional...
IR35 Status:
Inside IR35

CV-Library Warrington, UK Contractor
CL
May 01, 2026  
Senior Process Engineer
Senior Process Engineer - Contract Job Title: Senior Process Engineer (Water) - Contract Working Location: UK (Hybrid) Why This Role Stands Out - Long-term water programme work - Technical leadership focus - Flexible contract engagement Key Responsibilities - Delivering process design across water/wastewater projects - Producing calculations, PFDs, and strategies - Supporting HAZOPs and technical reviews - Mentoring junior engineers Requirements - Strong water process design experience - Wastewater treatment knowledge - HAZOP exposure - Chartered or working towards Contract Type: Contract (Outside IR35) Work Schedule: Hybrid (UK)
IR35 Status:
Outside IR35

CV-Library Manchester, UK Contractor
CL
Apr 21, 2026  
Senior Process Engineer
Senior Process Engineer- Addison Project, Harlow For over 25 years, Addison Project plc has delivered innovative, sustainable engineering solutions across the chemical, pharmaceutical, energy, and food & beverage sectors. As a family‑owned business with UK‑wide coverage, we combine technical excellence with a collaborative, client‑focused approach. Our fully integrated EPCM capability supported by strong CDM and HSSEQ leadership and accredited management systems ensures projects are delivered safely, efficiently, and to the highest standards from concept through to commissioning and start‑up. If you're passionate about engineering and want to join a dynamic, people‑focused consultancy driving progress and sustainability across the UK’s manufacturing and process industries, Addison Project is the place to grow your career. Role: Senior Process Engineer (Contract – Outside IR35) Location: Harlow Contract: 12 months Start Date: Spring 2026 Workscope Addison Project Plc invites...
IR35 Status:
Outside IR35

CV-Library Harlow, Essex Contractor
CL
May 08, 2026  
Senior Process Development Engineer
A global medical device company is looking for a Senior Process Development Engineer to join their Research and Development team on a contract basis. The purpose of the role is to be the bridge between the R&D designers and the vendors for manufacturing, for one of their new medical device products. You'll be setting up the processes from scratch, conducting process validations, problem solving and working on design verification. This role will also involve occasional travel to the vendors to ensure processes are set up correctly. Essential Skills Process development experience Design verifications experience Process validations experience Working with R&D designers Working with vendors Worked with plastics components Model and flow products Exposure to moulding Evaluate, troubleshoot, solve performance Product and data reviews Producing transfer values The start date is for ASAP/4th May but we can wait for the right person. The initial contract length is for 12 months,...
IR35 Status:
Unknown Status

CV-Library Ireland Contractor
CL
May 02, 2026  
Senior / Principal Process Engineer
Senior / Principal Process Engineer - Nuclear (Contract) Location: Warrington or Preston (3 days on site / 2 days remote) Rate: Senior: ~£60 per hour (Umbrella PAYE) Principal: ~£75 per hour (Umbrella PAYE) Contract: 12 months (strong likelihood of extension) Start: ASAP The Opportunity We are recruiting for a Senior or Principal Process Engineer to support a key nuclear programme focused on Reprocessed Uranium (RepU). RepU is uranium recovered from spent nuclear fuel, historically reprocessed at Sellafield and reused in fuel cycles. While the UK has shifted toward once-through fuel strategies, significant RepU inventories remain in storage-creating a critical opportunity to develop safe, effective strategies for its management, reuse, or disposal. This role offers the chance to work at the forefront of fuel cycle strategy and nuclear process engineering, contributing to complex challenges with long-term national importance. Key Responsibilities Lead and deliver process...
IR35 Status:
Unknown Status

CV-Library Warrington, Cheshire Contractor
CL
May 10, 2026  
SC Cleared Senior Integration And Test Engineer
Job Title: SC Cleared Senior Integration and Test Engineer Location: Farnborough 3 days per wek with occasional travel to BUTEC Duration: 6 months with possible extension Rate: Up to £650 per day via an approved umbrella company Must be willing and eligible to go through the SC Clearance process Our client, a leading organisation in defence and technology, is hiring for a reputable company to find a Senior Integration and Test Engineer to join their Maritime project. This is a fantastic opportunity to lead technical integration and testing activities within a dynamic environment, working closely with project teams, stakeholders, and customers. What you'll be doing: * Manage the end-to-end integration of software, hardware, and firmware into complex systems across multiple environments. * Drive testing and integration efforts at the British Underwater Test and Evaluation Centre (BUTEC) and Farnborough reference facilities. * Collaborate with project managers and...
IR35 Status:
Unknown Status

CV-Library Farnborough, Hampshire Contractor
CL
May 10, 2026  
Highway Maintenance Engineer
Exciting Opportunity for an Electrical Maintenance Manager (Highways) in South Yorkshire An excellent opportunity has arisen for an experienced Electrical Maintenance Manager (Highways) to join a leading authority in South Yorkshire on a full-time basis. This key role will oversee the management and maintenance of highway electrical assets, ensuring compliance, safety, and longevity of the infrastructure. The successful candidate will play a pivotal role in managing maintenance programs, coordinating teams, and delivering best value for money while meeting statutory and regulatory obligations. The main duties of the Electrical Maintenance Manager (Highways) include: ·Leading and managing the maintenance of highway electrical assets, including the implementation of reactive and planned maintenance programs. ·Ensuring all work complies with relevant legislation, policies, and industry standards, as well as maintaining accurate records to support statutory defense in legal claims....
IR35 Status:
Unknown Status

CV-Library South Yorkshire, UK Contractor
CL
May 10, 2026  
EBSA - IDAM DevOps
EBSA - IDAM DevOps HO - SFIA 4/5 Rate (Apply online only) Clearance required: Security Clearance (SC) required | NPPV3 eligible Nationality requirement: Single National Location: London Sector: Public Job Description: "Senior DevOps Engineer - Kubernetes & OpenLDAP Security Clearance (SC) required | NPPV3 eligible Role Summary Highly experienced DevOps engineer with deep expertise in Kubernetes platform engineering and OpenLDAP integration, operating at senior level. Responsible for designing, implementing, and leading secure, scalable containerised platforms within a regulated environment. Provides hands-on technical leadership while managing a small DevOps team delivering test-focused CI/CD capabilities. Core Expertise (Heavy) · Kubernetes (Platform Engineering & Operations) Cluster design, provisioning, upgrade and lifecycle management RBAC, network policies, pod security standards Ingress controllers, service mesh integration Multi-environment strategy...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
May 09, 2026  
Senior AWS Data engineer (LDW Data Warehouse Discovery)
Senior AWS Data engineer (LDW Data Warehouse Discovery) Max Supplier Rate: £483 Clearance Required: SC ACTIVE Duration: 6 months Location: Telford with 2 days/week in office IR35 Status: Inside The role falls within the Data Contract Delivery Area of the clients contract. The group provides a wide range of data and analytics solutions in support of our client's business priorities: maximise revenues, bear down on fraud, and cloud migration. This role involves migrating data from legacy on-premise systems (primarily Oracle and Informatica) to a new AWS cloud-native architecture. You will be part of an Agile software delivery team working closely with other engineers and supported by project managers, business analysts and architects. With additional client and key stakeholder interaction as required. We are looking for strong AWS Senior Data Engineers who can design and deliver cloud transformation projects. Your work will be to: As part of a cloud transformation team,...
IR35 Status:
Inside IR35

CV-Library Telford, Shropshire Contractor
CL
May 09, 2026  
Vehicle Package Engineer
Vehicle Package Engineer Department: Advanced Engineering Contract Type: Contract 12 months Location: Gaydon, Warickshire Rate: £33.88 per hour (inside IR35) Role Overview Vehicle Package Engineering sits within the Advanced Engineering department and is responsible for the vehicle package from concept through to end of life, across the client's full product portfolio. The team plays a critical role in balancing engineering requirements with customer needs, ensuring that all vehicle systems integrate effectively within the defined vehicle layout while protecting occupant and customer-use space. Due to continued project demand, the department is seeking talented and motivated Vehicle Package Engineers to support the delivery of challenging targets across a range of vehicle programmes. Key Responsibilities Creation of vehicle concept proposals through vehicle architecture and package layouts Development of outline component and system proposals to support package evolution...
IR35 Status:
Inside IR35

CV-Library Warwick, Warwickshire Contractor
CL
May 08, 2026  
Control & Instrument Engineer
Booth Welsh require a C+I Engineer to carry out work for a large Nuclear Decommissioning client based in Kent The works requires minimal site visits, but does require close interaction with the Booth Welsh Senior Instrument team from our Head Office Site visits when required, Hybrid work and open to visit our offices in Scotland as and when required. C&I Engineer: The C&I Engineer will work across the telecoms and C&I scope supported by the Senior Engineer. Responsibilities will include: * Conducting site surveys, desktop reviews, and data analysis for assigned systems * Developing system assessments, findings, and recommendations * Reviewing CRs, WRs, ECs and other relevant datasets * Preparing draft content for the system reports * Liaising with system engineers and stakeholders to gather technical insight * Escalating technical risks or uncertainties to the Senior Engineer Founded in 1989, Booth Welsh now employs a workforce of over 300. We remain a...
IR35 Status:
Unknown Status

CV-Library TN29, New Romney, Kent Contractor
CL
May 08, 2026  
Senior Tendering Application Engineer
Role Overview We are seeking a Lead Engineer to guide a multidisciplinary team of designers and engineers, collaborating closely with bid managers to prepare proposals for High Voltage AC & DC substations, offshore wind farms, battery energy storage systems, and green hydrogen production projects-supporting the broader Green Energy Transition. This position requires a dynamic and motivated individual with strong knowledge of the tendering and bid process, as well as a deep understanding of relevant markets and customer value drivers that support successful bidding strategies. The ideal candidate will have extensive technical expertise in high-voltage AC substation design and primary plant, along with an understanding of protection and control systems, SCADA, OT cybersecurity, telecommunications, metering, current and voltage transformer specifications, and substation integration. Key Responsibilities Lead preparation of bid submissions for opportunities related to...
IR35 Status:
Unknown Status

CV-Library Stafford, Staffordshire Contractor
CL
May 08, 2026  
Engineering Manager
Are you looking for a senior leadership role where you can influence standards, drive design quality, and shape the future capability of a growing water engineering function? Have you led multi-disciplinary teams delivering regulated water industry designs, taking accountability for technical quality, compliance, and on time delivery? Are you a Chartered Engineer (or close to chartership) with extensive experience approving and managing complex water design packages? The Opportunity This role is available on a contract basis (outside IR35) and they are also recruiting for this position on a permanent basis, offering a salary of £75,000–£90,000 per year plus benefits, depending on experience and working arrangements. This opportunity has arisen due to continued growth and expansion within a well established engineering design consultancy delivering critical projects across the regulated water sector. With a strong and growing workload, the team is strengthening its...
IR35 Status:
Outside IR35

CV-Library Stretford, Manchester, UK Contractor
CL
May 08, 2026  
Principal Software Quality Engineer
Principal Engineer - Software Assurance £65.98 p/hr - Inside IR35 12 months Defence 1-2 days a month on site, Coventry, Barrow, Frimley or Weymouth Our complex platforms are increasingly driven by Software, assuring the quality of this and the proper integration is critical to our success. Software assurance is the ongoing process to ensure that software products meet and comply with software engineering, quality and safety standards. It is a systems engineering activity that that supports the achievement of functional and multiple non-functional requirements and is applicable to the whole engineering lifecycle from concept design to in service support. This is a growing role within our business and industry with significant potential for development and further growth. We expect the candidate to quickly develop an understanding of the development, use and control of software in our complex and unique application. Being actively involved in the decision making and problem...
IR35 Status:
Inside IR35

CV-Library United Kingdom Contractor
CL
May 08, 2026  
Works Inspector
Infrastructure Protection – Works Inspector Business Area: Infrastructure Protection Project: Third Party / External Development Works (TfL Infrastructure Interface) Pay Rate £400 per day (inside IR35) – Umbrella About the Role We are seeking an experienced Infrastructure Protection – Works Inspector to join a busy operational team managing third-party and external development works adjacent to or above TfL infrastructure. You will be responsible for ensuring that construction activities do not compromise the safety, integrity, or operation of the rail network. This includes surveillance checks of safe systems of work, monitoring high-risk construction activities, and undertaking statutory network patrols under ROGS requirements. This is a highly site-based role with significant exposure to active construction environments and operational railway interfaces. Location Site-based role (London Underground / TfL operational infrastructure) You will be required to attend...
IR35 Status:
Inside IR35

CV-Library E20, Stratford and New Town, Greater London Contractor
CL
May 08, 2026  
Senior Mechanical Engineer (contract)
Senior Mechanical Engineer Basildon, Essex (1 day/week on site) £53ph (Inside IR35) Initial 6 month contract **Please note we can only consider sole UK Nationals for this role** We are currently looking for a Senior Mechanical Engineer to join the Precision Guidance Integrated Project Team (IPT), working on equipment for the next generation of Missile Seeker Programmes. What you'll do as a Senior Mechanical Engineer: Support senior members of staff in the delivery of technical solutions on critical Business Programmes. Generation of mechanical solutions to relevant company and international standards. Design of engineering solutions taking into account all requirements including product quality, safety, reliability, testability, sustainability, etc. Mechanical engineering detailed design, including numerical calculations, tolerance studies, etc. Produce Manufacturing Data Packs in line with BS8888 including appropriate application of GD&T. Generate BoM within approve PLM...
IR35 Status:
Inside IR35

CV-Library Basildon, Essex Contractor
CL
May 08, 2026  
Vehicle Concept Package Engineer - 37022883
Job Title: Vehicle Concept Package Engineer - (phone number removed) Number of Positions: 3 Description The Vehicle Package Engineering area is part of the Advanced Engineering department and is responsible for the Vehicle Package from concept to end of life, across all business products. Vehicle Package Engineering’s main responsibilities fall into 3 areas: 1. Definition and delivery of the overall Vehicle Layout 2. Assisting Component/System owners develop their components so that they fit into the Vehicle Layout 3. Protecting space in the Vehicle for the Customer and the articles they want to take with them The area wishes to recruit talented and enthusiastic engineers to ensure that our challenging targets are met on a range of vehicle projects. Key Responsibilities: • Creation of vehicle concept proposals in the form of vehicle architecture package layouts. • Creation of outline component and system proposals to further the vehicle package development. • Definition...
IR35 Status:
Unknown Status

CV-Library Gaydon, Warwickshire Contractor
CL
May 07, 2026  
Senior Infrastructure Engineer
Senior Infrastructure Engineer - Drainage & Design (Contract) Location: London (Hybrid: 3-4 days in office, flexible) Contract Length: 6 months Hours: 37.5 hours per week IR35 Status: Outside IR35 Rate: £40-£45 per hour The Opportunity: A growing, dynamic infrastructure consultancy is seeking a Senior Infrastructure Engineer to join their team on a contract basis. This is an exciting opportunity to take on a central role in delivering drainage and infrastructure projects within a close-knit team. You'll have the chance to lead the design and coordination of various drainage, flood risk, and roadworks projects, while enjoying the flexibility and autonomy of working in a smaller consultancy environment. This role is perfect for an experienced engineer who enjoys both hands-on technical work and collaboration in a supportive, team-driven setting. Key Responsibilities: ·Lead the design of drainage, flood risk, and infrastructure projects from start to finish...
IR35 Status:
Outside IR35

CV-Library City of London, London, UK Contractor
CL
May 07, 2026  
Manufacturing Engineer - Aerospace
Job Title: Manufacturing Engineer Location: Coventry (on site) Contract: 6 months Rate: £35/hr - £45/hr PAYE Holidays: 33 days per annum accrued (inclusive of bank holidays) Purpose Create and maintain manufacturing travellers, operation plans and tooling drawings to support the build and assembly of aerospace products. Work hands‑on with senior engineers and manufacturing staff, and implement quality solutions to ensure high reliability and compliance. Key Responsibilities Build and update manufacturing/assembly travellers, work sequences and procedures. Design and maintain assembly/fabrication tooling; solve assembly, test, machining and process issues on the shop floor. Review and sign off engineering changes, and initiate drawing updates. Lead root‑cause analysis (8D, Fishbone, 5‑Whys, PFMEA) and process improvements. Run PPAP and quality assurance activities for production and suppliers. Turn customer/regulatory specs into work instructions, control plans and...
IR35 Status:
Unknown Status

CV-Library Coventry, West Midlands Contractor
CL
May 07, 2026  
Senior Quality Engineer / Coach and Mentor
Senior Quality Engineer / Coach and Mentor We are seeking an experienced hands on Quality professional to work alongside the current Quality Manager to support them during a period of operational and process development Paying £300 to £400 per day (6 month to 12 month contract) This role is focused on: Providing practical support and guidance Sharing experience from similar manufacturing environments Strengthening process control and problem-solving approaches Supporting the development of existing team and systemsThe experience that we are looking for the Senior Quality Engineer / Coach and Mentor Strong background in manufacturing quality (10+ years) Experience in: Aerospace, OEM or high-spec industries AS9100 / ISO9001 environments Hands-on experience in: Root cause analysis and process improvement (8D) Based in Stone, Staffordshire Desirable skills for Senior Quality Engineer / Coach and Mentor Background in: Metallurgy or materials engineering Powder metallurgy /...
IR35 Status:
Unknown Status

CV-Library Stone, Staffordshire Contractor
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