179 senior process engineer jobs found

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...

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)

Senior Process Engineer 3 positions available Locations: Warrington or Bristol Working Pattern: Hybrid - 3 days per week on site Contract Length: 12 months IR35 Status: Inside IR35 Security Clearance: UK Security Check (SC) - required Start: Subject to clearance & onboarding The Role We are seeking experienced Senior Process Engineers to support a strategically important programme within the UK nuclear sector. This role will be supporting the technical development, assessment and delivery of process solutions associated with the handling, conversion, and potential reuse of reprocessed uranium originating from historic reprocessing operations. You will play a key role in process definition, safety justification, and technical assurance across the fuel cycle, working within a highly regulated nuclear environment. Key Responsibilities Lead and deliver process engineering activities across RepU-related systems and facilities Develop and review process flows, mass...

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...

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...

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 Principal Process Engineers to provide senior technical leadership across a range of complex engineering activities. This role is suited to engineers who can work independently, guide multidisciplinary teams and act as subject matter experts within their discipline. Role Overview: You will lead the delivery of engineering and technical outputs, applying broad process knowledge to shape solutions, resolve complex issues and ensure high‑quality standards. The role involves mentoring others, supporting capability development and maintaining strong relationships with internal and external stakeholders. Key Responsibilities Lead and coordinate multi‑discipline engineering teams to deliver agreed scopes efficiently. Supervise, mentor and...

Senior Mechanical Engineer Basildon 6-Month Contract Paying up to £55p/h (Inside IR35 Key Responsibilities 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 system (Teamcenter). Contribute to reviews of Mechanical designs in accordance with business and industry standards. Deliver design solutions against Technical Requirements, within budget and timescales. Essential Skills & Experience Mechanical or Science degree qualified, or equivalent, with experience....

Job Title: DV Cleared Senior Network Engineer Location: Cambridgeshire with Travel to other sites when required Duration: 6 months with possible extension Rate: Up to £700 per day via an approved umbrella company Must be willing and eligible to go through the DV Clearance process Our client, a reputable organisation supporting UK defence, is hiring for a Senior Network Engineer to join their team primarily based in Cambridgeshire. This is a fantastic opportunity for a skilled network professional to contribute to critical infrastructure projects and ensure the resilience of vital networks. What you'll be doing: Acting as a Subject Matter Expert (SME) and design engineer for network upgrades and future developments Developing comprehensive design documentation, including SDRs, HLDs, LLDs, and test plans Building and configuring network hardware to meet design specifications Providing expertise on network obsolescence, proposing hardware replacements, and assessing risks...

Ready to take the lead on complex mechanical design projects? Do you have extensive experience in hydraulic design and a strong background in the water industry? Are you confident guiding teams and delivering high-quality engineering solutions? The Opportunity We’re seeking a Senior Mechanical Engineer to join a leading engineering consultancy, working on innovative water sector projects. This is a chance to influence design standards and mentor the next generation of engineers. The Role This role would suit candidates currently working as Mechanical Design Engineer, Senior Design Engineer, Project Engineer, Hydraulic Engineer, Principal Mechanical Engineer, Mechanical Project Manager, Water Engineer, M&E Engineer, Design Lead, or Engineering Consultant.  We would also welcome applications from professionals in power generation, process engineering, utilities, infrastructure, or environmental engineering. Your duties and responsibilities will be Deliver mechanical...

Our OEM Client based in Gaydon, is searching for a Battery Test Delivery Engineer to join their team, Inside IR35. This is a contract position with a proposed end date of 31st March 2027. Umbrella Pay Rate: £27.03 per hour. The Opportunity: Using state-of-the-art facilities, you’ll provide the power behind our vehicles working in our Engineering Operations Powertrain team. The company has made a major investment in new testing capability to ensure future Powertrain development can take place and meet the business requirement to develop new and exciting products. 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...

Highways Project/Design Engineer About the Role We are looking for an experienced Highways Engineer to lead the design and delivery of traffic and highway improvement projects. This is a senior technical role where you will combine AutoCAD design expertise with strong project management skills to deliver safe, sustainable, and efficient transport solutions. Projects include sustainable transport, active travel (cycling and walking) as well as bus priority schemes. This is a full-time contract position. The rate on offer is £40 - £45 per hour - negotiable for the right candidate. Flexible working and working from home arrangements are available.   Key Responsibilities: ·Lead on the design of traffic engineering schemes using AutoCAD and related software. ·Manage projects from concept to completion, including planning, budgeting, and stakeholder engagement. ·Ensure compliance with UK traffic regulations, design standards, and safety principles. ·Oversee a team of design...

CE&I Senior Design Engineer - Site Based (Contract) Location: Cumbria (3 days on site / 2 days remote) Rate: ~£60 per hour (Umbrella PAYE) Contract: 12 months (strong likelihood of extension) Start: ASAP The Opportunity We're seeking an experienced CE&I Senior Design Engineer to join a high-profile project supporting commissioning activities on a major nuclear site in Cumbria. This is a site-focused role offering a balance of on-site engineering support and remote working, with occasional travel to Warrington. You'll play a key role in delivering and supporting detailed CE&I design solutions, working closely with commissioning teams to ensure successful project execution. Key Responsibilities Provide front-line, site-based design support to commissioning teams Deliver and check detailed CE&I designs and design changes Support the delivery of work by other engineers within the team Ensure designs meet functional and business requirements Collaborate across...

Civil Design Engineer (Engineer / Senior / Principal / Associate) – Water Location: Stretford, Manchester (Hybrid – 3 days per week in office) Type: Contract – Ltd (subject to an IR35 assessment confirming outside status) Rate: £45.00 - £62.50 per hour (Ltd) Hours: 40 hours per week (Monday – Friday) Duration: 12 months+ About the Role We are currently recruiting Civil Design Engineers at Engineer, Senior, Principal and Associate level to support the delivery of high-quality civil engineering design solutions across AMP8 wastewater treatment projects for major UK utility end clients. This role will focus on the design of civil elements within wastewater treatment plants (WWTW), including earthworks, drainage, pipelines, structures, and associated site infrastructure. You will play a key role in ensuring designs are safe, compliant, buildable, and aligned with client and regulatory requirements. Please note: Water sector experience, particularly within WWTW /...

Pontoon is an employment consultancy. We put expertise, energy, and enthusiasm into improving everyone's chance of being part of the workplace. We respect and appreciate people of all ethnicities, generations, religious beliefs, sexual orientations, gender identities, and more. We do this by showcasing their talents, skills, and unique experience in an inclusive environment that helps them thrive. Job Title: Linux Engineer Lead Contract: Initial 6-Month Contract with potential to extend. Location: London - Hybrid (3 days in office) Rate: £450 - £500 inside umbrella About the role: We are establishing a new Linux and container platform capability within EMEA to support modern, resilient, and scalable infrastructure services. This role is critical to the design, build, and operation of that capability. The Linux Engineer lead is a hands‑on technical role responsible for the engineering, stability, and operational readiness of enterprise Linux platforms underpinning...

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...

Senior Systems Engineer £87.83 per hour (Inside IR35) Mostly remote - 1-2 days per month on site, Barrow or Sheffield 12 months Senior Systems Engineer reporting to the Systems Engineering Function Lead within the Weapon Systems Engineering function. The role requires a good understanding of Model Based Systems Engineering (MBSE), Requirements management, Interface Management, Integration, and V&V stages of the Engineering Lifecycle. They should be experienced in working withal stakeholders including the internal project team, external customers, and the various design teams (S/W, Mech, Elec etc.). They should also be experienced in managing the engineering design stages: from the initial concept; design and development; testing and qualification; through to final manufacture and implementation of a new product or sub-system. Elicitation of user needs from internal/external customers. Elicitation of stakeholder needs across internal/external stakeholders. Elicitation of...

Pontoon is an employment consultancy. We put expertise, energy, and enthusiasm into improving everyone's chance of being part of the workplace. We respect and appreciate people of all ethnicities, generations, religious beliefs, sexual orientations, gender identities, and more. We do this by showcasing their talents, skills, and unique experience in an inclusive environment that helps them thrive. Job Title: Linux Engineer Lead Contract: Initial 6-Month Contract with potential to extend. Location: London - Hybrid (3 days in office) Rate: £450 - £500 inside umbrella About the role: We are establishing a new Linux and container platform capability within EMEA to support modern, resilient, and scalable infrastructure services. This role is critical to the design, build, and operation of that capability. The Linux Engineer lead is a hands‑on technical role responsible for the engineering, stability, and operational readiness of enterprise Linux platforms underpinning...

Senior CE&I Design Engineer Location: Cumbria  Hours: 37 hours per week Security Clearance: SC required Overview We are recruiting for a Senior CE&I Design Engineer to support a major regulated infrastructure programme. This role sits within a multi-disciplinary design team, providing front-line, site-based design support to commissioning activities. You will be responsible for delivering and checking detailed CE&I design changes, ensuring alignment with functional and business requirements. This is a design-focused role – implementation and commissioning activities are carried out by separate site teams. Key Responsibilities Provide site-based design support to commissioning teams Produce and check detailed CE&I designs and design changes Support the delivery of design outputs across the wider team Ensure designs meet technical, safety, and regulatory requirements Interface with multi-disciplinary teams to resolve design challenges Apply knowledge of...

Senior EC&I Designer Location: Warrington (Hybrid Working) Rate: £53.00 – £65.00 per hour (Inside IR35) Hours: 40 hours per week Security Clearance: SC Clearance required Sector: Nuclear The Opportunity We are recruiting for a Senior EC&I Designer to support the delivery of complex nuclear engineering projects within a highly regulated environment. This is a key role where you will lead Electrical, Control & Instrumentation design activities, provide technical leadership to a multi-disciplinary team, and ensure high-quality, compliant design outputs across the full project lifecycle. Key Responsibilities Lead EC&I design activities across nuclear projects from concept through to detailed and production design Allocate and review work, ensuring all deliverables meet nuclear industry standards and regulatory requirements Produce and check EC&I design outputs, including: Schematics Wiring diagrams Loop diagrams Cable schedules General arrangements...

Dedicated to sustainable development, Arup is a collective of designers, consultants and experts working globally. At Arup you will have the opportunity to collaborate on ambitious projects - delivering remarkable outcomes for clients and communities, and to do socially useful work that has meaning. Arup's purpose, shared values and collaborative approach has set it apart for over 75 years, and now is your opportunity to join. Job description - the role AMS is a global workforce solutions partner committed to creating inclusive, dynamic, and future-ready workplaces. We help organisations adapt, grow, and thrive in an ever-evolving world by building, shaping, and optimising diverse talent strategies. We partner with Arup to support their contingent recruitment processes. Acting as an extension of their recruitment teams, we connect them with skilled interim and temporary professionals, fostering workplaces where everyone can contribute and succeed. On Behalf of Arup, we are...