28 senior mechanical design engineer jobs found

I'm recruiting for a tech start-up in Cheltenham who are growing their R&D and engineering team following a successful period. They're looking for a contract Mechanical Design Engineer to design, develop and test the products used in surveillance, security and telecoms. ROLE: Mechanical Design Engineer LOCATION: Cheltenham RATE: up to £55ph DURATION: 6 months IR35: Outside IR35 Skills required for the Mechanical Design Engineer are: * 2D/3D CAD in Solidworks * Strong protoyping skills (3d printing etc) * Ability to work in fast-paced environment * Analysis/simulation skills * Experience designing ruggedized products for extreme/harsh environments or safety-critical industries The work is 100% on-site in Cheltenham but the company can offer some flexibiltiy with hours to suit personal situation. If you're interested, please apply below or get in touch with me directly with any questions Cheers, Nathan

️ Lead MEICA Commissioning Engineer | Clean Water Projects | Affinity Water Region Outside IR35 | Long-Term AMP8 Programme Leadership Role | Commissioning Strategy | Team Management Some commissioning roles are about witnessing tests and signing paperwork. This one is about leading people, driving standards, and bringing structure to projects before problems ever reach site. A leading Tier 1 contractor delivering clean water projects across the Affinity Water region is looking for a Lead MEICA Commissioning Engineer to oversee commissioning delivery across a portfolio of schemes typically ranging from £5m–£10m. While the individual projects may not be mega-projects, they need someone who has operated at that level before. Someone who understands what “good” looks like on major infrastructure programmes and can bring that level of leadership, planning, coordination, and control into a growing AMP8 delivery environment. This is a role for a true commissioning leader — somebody...

️ MEICA Lead x 2 – Major AMP8 Scheme | Oxfordshire | Winsor Corridor Outside IR35 | £475–£550 per day | Long-Term Project Tier 1 Contractor | Major Water Infrastructure Scheme Some freelance roles are there to fill a gap. This one is there because the project genuinely needs someone strong enough to lead it. A leading Tier 1 contractor has secured a major AMP8 water scheme in the Oxfordshire region and is looking for a MEICA Lead to take ownership of delivery across a complex live project environment. They’re looking for someone who can do more than sit in progress meetings and update spreadsheets. They need somebody who understands how MEICA packages actually come together on site and someone comfortable managing technical issues, driving subcontractors, coordinating commissioning activities, and keeping momentum when programmes tighten up. You’ll be heavily involved from delivery through to completion, working alongside senior operational teams on one of the region’s key AMP8...

An excellent opportunity has arisen for an experienced Electrical Design Engineer to join a well-established building services consultancy in London on a contract basis, operating outside IR35. This hybrid position involves working within a multidisciplinary building services engineering team, contributing to the delivery of electrical design solutions across a diverse portfolio of projects. The successful candidate will play a key role in developing electrical building services designs, producing technical documentation, and supporting coordinated BIM models. Based in the London office with flexible hybrid working, this role offers the opportunity to be involved in high-quality projects alongside a team of experienced engineers and consultants. Key Responsibilities As an Electrical Design Engineer, your duties will include: * Delivering electrical building services designs across a range of projects * Producing electrical schematics, layouts, and associated technical...

ADDISON PROJECT PLC – Senior Project Engineer, Thornton-Cleveleys 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 for you. Role: Senior Project Engineer (Contract outside IR35) Location: Thornton-Cleveleys Contract: 12 months Start Date: Spring 2026 WORKSCOPE Addison...

An excellent opportunity has arisen for an experienced Electrical Design Engineer to join a well-established building services consultancy in London on an contract basis outside IR35. This hybrid role will involve working as part of a multidisciplinary building services engineering team, supporting the delivery of electrical design solutions across a range of building projects. The successful Electrical Design Engineer will contribute to the development of electrical building services designs, technical documentation and coordinated BIM models. This role is based in the London office with hybrid working available, offering the chance to work on high-quality building services projects alongside experienced engineers and consultants. Key Responsibilities · As an Electrical Design Engineer, your responsibilities will include: · Producing electrical building services designs for a variety of building projects · Developing electrical schematics, layouts and...

We are working with this leading multi national data centre and mission critical specialist who are working on schemes across UK and europe. With data centres being crucial components of today's infrastructure, supporting everything from business to public services. Operators must ensure the longevity, efficiency, and sustainability of their sites while optimizing them for mission-critical tasks. The teams are at the forefront of designing innovative and energy-efficient data centres, ensuring that our clients meet their goals of performance, cost-efficiency, and sustainability. The Opportunity Join our international and multidisciplinary team of passionate design engineers and help us create high-quality, sustainable, and innovative data centre structures. You will work on medium to large-scale mission-critical projects, covering all stages of design - from concept to construction supervision and handover. As part of an interdisciplinary team of architects, advisors &...

Senior Electrical, Control & Instrumentation Engineer Leading Engineering Solutions Provider | Hybrid | Long-term Contract | Outside IR35 | Competitive Rate | Current SC Clearance Required | Electrical Infrastructure Experience Essential The Opportunity We're recruiting a Senior Electrical, Control & Instrumentation (EC&I) Engineer to join a leading defence engineering solutions provider. You'll deliver EC&I design across complex defence infrastructure projects, bringing substantial experience in electrical systems design from either critical infrastructure environments (datacentres, utilities, healthcare facilities) or defence and nuclear backgrounds. Contract Details: Outside IR35 | Competitive rate | Hybrid working (2 days on-site every fortnight) | 9-day working fortnight | Current SC clearance essential This role suits experienced EC&I professionals who understand how to design robust electrical systems in demanding, highly-regulated environments....

Civil Design Engineer | Water AMP 8 Contract: Long‑term, Outside IR35 Location: Chatham, Kent (Flexible Hybrid) Our client in water is seeking an experienced Civil Design Engineer to support the design and delivery of infrastructure and non‑infrastructure projects across a broad programme of work. This long‑term contract offers the opportunity to play a key role in developing, reviewing, and coordinating civil engineering designs within a fast‑paced, essential services environment. Hybrid working is available, with regular presence required at the Chatham office. Key Responsibilities Produce, review, and develop civil engineering designs for water and wastewater infrastructure Prepare design calculations, technical drawings, and specifications in line with industry and regulatory standards Support feasibility assessments, optioneering, and early‑stage technical input Work collaboratively with multidisciplinary teams including process, mechanical, electrical, and delivery...

We are seeking an experienced Senior Civil Design Engineer to support a portfolio of National Grid infrastructure projects. The role involves leading the civil and structural design elements for substation, overhead line, and other transmission‑related assets, ensuring compliance with National Grid's technical specifications and governance processes. This is an Outside IR35 contract position, offering hybrid working with on‑site collaboration. Key Responsibilities Lead and produce civil and structural designs for National Grid transmission projects (substations, foundations, compounds, cable routes, OHL works, access roads, drainage, etc.). Ensure all designs comply with National Grid TP / TS standards and relevant industry codes (BS EN, Eurocodes). Prepare design calculations, sketches, reports, specifications, and technical documentation. Manage design risk assessments and contribute to CDM compliance. Coordinate with multidisciplinary teams including electrical, geotechnical,...

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...

Are you looking for a role where you can shape design delivery, grow team capability, and influence how water industry projects are engineered from concept through to delivery? Have you managed and led multi-disciplinary design teams delivering complex projects within a regulated environment, ensuring quality, safety, and programmed compliance? Do you have strong hands on experience leading the design process on water or similar regulated infrastructure projects, with accountability for design outputs and team performance? The Opportunity This role is available on a contract basis (outside IR35) and they are also recruiting on a permanent basis, offering £60,000–£80,000 per year plus package, with hybrid working options available depending on experience and arrangements. This role has been created in response to continued growth within a multi-disciplinary engineering design environment delivering regulated infrastructure projects. With an expanding workload in the water...

NW32888 Site Design Coordinator £300 - £400 p/d (Outside IR35) Walsall or Teeside Alecto Recruitment is proudly partnering with a global leader in the Waste to Energy sector. Together, we are looking to recruit a Site Design Coordinator to support the civil works across major infrastructure projects. Role and Responsibilities: Take charge of coordinating all civil works design deliverables, working hand-in-hand with our Lead Engineer to keep everything aligned and moving. Make sure every element of the civil works meets contract, programme, budget, HSE, and quality targets-no exceptions. Control design interfaces between external consultants and our internal engineering teams, setting clear release schedules and tracking progress so nothing slips. Review and challenge design submissions to ensure constructability, flag risks early, and put forward smart, practical technical solutions. Represent the civil design function confidently in meetings, keeping communication sharp...

NW32888 Site Design Coordinator £300 - £400 p/d (Outside IR35) Walsall or Teeside Alecto Recruitment is proudly partnering with a global leader in the Waste to Energy sector. Together, we are looking to recruit a Site Design Coordinator to support the civil works across major infrastructure projects. Role and Responsibilities: Take charge of coordinating all civil works design deliverables, working hand-in-hand with our Lead Engineer to keep everything aligned and moving. Make sure every element of the civil works meets contract, programme, budget, HSE, and quality targets-no exceptions. Control design interfaces between external consultants and our internal engineering teams, setting clear release schedules and tracking progress so nothing slips. Review and challenge design submissions to ensure constructability, flag risks early, and put forward smart, practical technical solutions. Represent the civil design function confidently in meetings, keeping communication sharp...

Forward Deployed Engineer - Contract Morela is supporting a fast-growing AI start-up in hiring multiple Forward Deployed Engineers to work directly with customers, embedding into their environments to design, build and deploy high-impact AI solutions. This is not a back-office engineering role. You will be on the front line, translating ambiguous business problems into working AI systems, often under real-world constraints and with limited runway for iteration. If you are more comfortable shipping solutions with clients than sitting behind internal tickets, this is for you. WHAT YOU'LL BE DOING Work directly with clients to understand their business challenges and translate them into scalable, working technical solutions Design and deploy AI and ML systems in production customer environments Rapidly prototype, iterate and refine solutions based on real user feedback in real time Integrate AI models into existing client infrastructure and workflows Act as a trusted technical...

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...

OUTSIDE IR35 CONTRACT Duration - 9-12 Months ECS Resource Group are currently working in partnership with a global managed service provider, assisting them with the search for a Lead Technical Specialist RF Engineer on a contract basis. Key Responsibilities Act as a technical advisor throughout the sales cycle, supporting customer engagement and delivering solution designs, bills of materials, and technical documentation Partner with business leaders and sales teams to support strategy execution through technical guidance, coaching and mentorship Collaborate with internal technical resource teams to efficiently deliver project outcomes and improve turnaround times Maintain current knowledge of system architectures and emerging technologies to provide relevant, customer-focused solutions Build and manage relationships with technology partners and vendors to support solution development and market positioning Deliver technical presentations, training sessions, and participate in...

Mechanical Design Engineer Initial 6 month contract Outside IR35 Growing Manufacturing Business Birmingham ASAP Start   Our client are a precision manufacturing business, based in Birmingham, specialising in machining and assembly of high value low volume components. Working within the Engineering Team, the Mechanical Engineer will be responsible for maintaining and developing the existing company product range and creating solutions to customer problems from within the naval marine sector. The Mechanical Engineer, in conjunction with the Design Manager, and the Engineering Standards Manager will be responsible for facilitating the flow of reliable, accurate and readily available data, to both internal and external customers.   Mechanical Engineer  Job Description Interpret customer specifications and create solutions that fully satisfy requirements. Use appropriate valve technologies for a wide range of applications. Use correct standards, design codes and pressure vessel...

A well-established, design-led civil engineering consultancy is looking to appoint an experienced Contract Senior Civil Engineer on a long-term, Outside IR35 basis. This is a fully remote role with a strong pipeline of secured work across commercial, industrial and data centre developments. The Role You’ll take ownership of infrastructure packages from concept through detailed design, with a particular focus on: Detailed levels strategy Surface & foul drainage design Drainage slope design and optimisation External works coordination Technical delivery for planning and construction stages Projects include large commercial schemes, industrial developments and major data centre infrastructure. Software MicroDrainage (essential) What We’re Looking For Proven UK development infrastructure experience Strong background in commercial / industrial schemes Confident working autonomously in a remote environment Able to deliver technically sound, buildable drainage and...

Location: Mannington, Dorset Rate: £400 per day Contract Type: Full-time, site-based contingency worker IR35 Status: Outside IR35 Duration: 6-month rolling contract (12-month programme) Hours: Monday to Friday, 10-hour days, occasional travel to client offices MRR Infrastructure is proud to be supporting the delivery of a significant 400kV substation scheme for a leading global engineering and construction consultancy, recognised for its technical excellence and long-standing success within the power transmission and distribution sector. This opportunity offers the chance to contribute to a high-profile National Grid project, working alongside a multidisciplinary team to maintain the highest levels of safety, quality, and technical performance throughout delivery. We are seeking a proactive Site Engineer with a strong background in substation infrastructure projects to provide on-site technical support, oversee setting out, verify works against design, and ensure compliance with...