140 mechanical engineer jobs found

Lead Mechanical Engineer Location: Reading, UK (Onsite) Contract: 12 Months (Inside IR35) Hours: 40 hours per week (Core hours: 09:00 - 15:30) Working Pattern: 4 days onsite, 1 day WFH About the Role We are seeking an experienced Lead Mechanical Engineer to join a Joint Venture (JV) Project Management Team during the pre-FEED stage of a major project, based in Reading. Key Responsibilities Lead Mechanical Engineer will provide engineering leadership aligned with project objectives and risk strategies Work closely with PMT and contractors to ensure risks are clearly understood and managed Drive value improvement and capital efficiency initiatives within design development Recommend and evaluate design alternatives to optimise cost and schedule Own and develop engineering standards, specifications, and philosophies Ensure technical definitions meet pre-FEED / FEED maturity expectations Support preparation of FEED/EPC scopes and participate in technical bid evaluations Lead...

Principal Mechanical Engineer - HVAC & Building Physics (Remote) Fully Remote £60/hr Inside IR35 12-Month Minimum Contract We're seeking an experienced Principal Mechanical Engineer to support a major defence infrastructure programme delivering critical M&E systems across Building C and Southern Services within the 10 Dock development. This is a fully remote, long-term contract opportunity focused on HVAC design, substantiation, and multidisciplinary coordination within a highly regulated environment. The Role You'll lead mechanical design activities across concept, scheme, and detailed design stages, with particular responsibility for HVAC systems supporting substation infrastructure and occupied operational spaces. Key responsibilities include: Delivery of RIBA Stage 3 and Stage 4 mechanical design HVAC and controls design for critical environments Design and substantiation of central and local ventilation systems Chilled water system design supporting electrical...

The Role We're looking for a Senior Mechanical Engineer to lead the design and delivery of mechanical building services on large, complex construction projects. You'll take ownership from concept through to construction, ensuring designs are practical, compliant, and cost-effective. Location: Liverpool (1x a week in the office) Rate: Up to £55 per hour (Inside IR35) Key Responsibilities ·Lead mechanical design for major construction projects ·Produce high-quality designs, specifications, and technical solutions ·Work closely with clients, architects, and project teams ·Coordinate designs across disciplines (M&E, BIM, etc.) ·Ensure compliance with regulations, standards, and quality procedures ·Support cost planning, estimates, and pre-construction activities ·Drive innovation and sustainable design solutions ·Provide technical guidance and mentor junior engineers Requirements ·Degree in Mechanical or Building Services Engineering ·CIBSE / IMechE member (or...

Are you a senior Mechanical Engineer in Building Service Design and looking to work on some exciting projects? Do you want a contract role with variety? You could work for a leading Building Services contractor, with a national presence with the following details; Location: Liverpool (1x a week in the office) Rate: Up to £50 per hour (Inside IR35) Duration: 12 months + Key Responsibilities · Deliver mechanical design for major construction projects · Produce high-quality designs, specifications, and technical solutions · Work closely with clients, architects, and multidisciplinary teams · Coordinate designs across disciplines (M&E, BIM, etc.) · Ensure compliance with regulations, standards, and quality procedures · Support cost planning, estimates, and pre-construction activities · Contribute to innovative and sustainable design solutions · Support and mentor junior engineers where required Requirements · Degree in Mechanical or Building Services Engineering ·...

A leading provider of nuclear solutions in the UK, specialising in clean energy, defense, and civil decommissioning, is looking for Principal Mechanical Engineer's to join their talented team. The package: Principal Mechanical Engineer Warrington - Hybrid Inside IR35 rate £60-70 per hour The role: The Principal Engineer provides leadership in the delivery of engineering and technical activities through the application of process, domain knowledge and experience. Ensure effective management of multi discipline teams to ensure timely & efficient delivery of engineering work to meet customer agreed scope Supervise engineers/technical specialists Promote effective co-operation across Engineering and other functional teams Ensure effective management of the customer, including liaison and relationship development with existing and new customers, to aid the development of business, resolution of technical and delivery issues, and such that the customer is fully briefed and...

World Class Defence Organisation is currently looking to recruit a number of Mechanical Systems Engineer / Architects on an initial 6 month contract.  The department can have the role based from either the Stevenage, Bristol or Bolton sites.   This role would suit a candidate who comes from a strong background of working as a Mechanical Design Engineer, Mechanical Systems Engineer, Mechanical Architect or has experience of Mechanical Systems Architecture.  A defence / aerospace background is ideal but not essential. DOORS experience would be great.    Rate: £60.00 per hour Overtime Rate: Hours worked over the standard 37 hours per week, will be paid at ‘time and a quarter’ Location: Stevenage, Bolton or Bristol depending on your preference Hybrid / Remote working: 3-4 days onsite needed. Will be 5 days onsite to begin with due to training needs Duration: 6 Months with very likely extension. Contracts are often ongoing and long-term thereafter.  IR35 status: Inside IR35 (Umbrella)...

World Class Defence Organisation is currently looking to recruit a number of Mechanical Systems Engineer / Architects on an initial 6 month contract.  The department can have the role based from either the Stevenage, Bristol or Bolton sites.   This role would suit a candidate who comes from a strong background of working as a Mechanical Design Engineer, Mechanical Systems Engineer, Mechanical Architect or has experience of Mechanical Systems Architecture.  A defence / aerospace background is ideal but not essential. DOORS experience would be great.    Rate: £60.00 per hour Overtime Rate: Hours worked over the standard 37 hours per week, will be paid at ‘time and a quarter’ Location: Stevenage, Bolton or Bristol depending on your preference Hybrid / Remote working: 3-4 days onsite needed. Will be 5 days onsite to begin with due to training needs Duration: 6 Months with very likely extension. Contracts are often ongoing and long-term thereafter.  IR35 status: Inside IR35 (Umbrella)...

World Class Defence Organisation is currently looking to recruit a number of Mechanical Systems Engineer / Architects on an initial 6 month contract.  The department can have the role based from either the Stevenage, Bristol or Bolton sites.   This role would suit a candidate who comes from a strong background of working as a Mechanical Design Engineer, Mechanical Systems Engineer, Mechanical Architect or has experience of Mechanical Systems Architecture.  A defence / aerospace background is ideal but not essential. DOORS experience would be great.    Rate: £60.00 per hour Overtime Rate: Hours worked over the standard 37 hours per week, will be paid at ‘time and a quarter’ Location: Stevenage, Bolton or Bristol depending on your preference Hybrid / Remote working: 3-4 days onsite needed. Will be 5 days onsite to begin with due to training needs Duration: 6 Months with very likely extension. Contracts are often ongoing and long-term thereafter.  IR35 status: Inside IR35 (Umbrella)...

World Class Defence Organisation is currently looking to recruit a Mechanical Design Engineer (Military Packaging Design) subcontractors on an initial 12 month contract. This role would suit a Mechanical Design Engineer who comes from a strong Defence or Aerospace background has strong Creo / PRO-E skills.  Other CAD Package skills are also fine.         Job Title:  Mechanical Design Engineer Rate: £50.00 per hour Location: Stevenage Hybrid / Remote working: Hybrid, 2-3 days min on site. Although this can change due to workload. Can be continually reviewed. 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) 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...

World Class Defence Organisation is currently looking to recruit a Mechanical Design Engineer (Military Packaging Design) subcontractors on an initial 12 month contract. This role would suit a Mechanical Design Engineer who comes from a strong Defence or Aerospace background has strong Creo / PRO-E skills.         Job Title:  Mechanical Design Engineer Rate: £50.00 per hour Location: Stevenage Hybrid / Remote working: Hybrid, 2-3 days min on site. Although this can change due to workload. Can be continually reviewed. 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) Mechanical Design Engineer - Military Packaging Design 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...

World Class Defence Organisation is currently looking to recruit a Mechanical Design Engineer subcontractors on an initial 6 month contract. This role would suit a Mechanical Design Engineer who comes from a strong Defence or Aerospace background has strong Creo / PRO-E skills.         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...

World Class Defence Organisation is currently looking to recruit a Mechanical Design Engineer subcontractors on an initial 6 month contract. This role would suit a Mechanical Design Engineer who comes from a strong Defence or Aerospace background has strong Creo / PRO-E skills.         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...

Commissioning Engineer (Mechanically Biased) Warrington Contract until Jan 2027 Inside IR35   Responsibilities The Commissioning Engineer reporting to the Commissioning Team Leader, carries out a role to undertake delivery of assigned commissioning tasks in a safe and effective manner, in line with commissioning process requirements. This role is specific to candidates with experience in nuclear in-cell handler testing.    The Commissioning Engineer is responsible for: Delivering the commissioning work scope to an agreed strategy and plan in a timely and cost effective manner Execution of the arrangements for controlling, witnessing, recording and assessing the results of commissioning tests which may affect safety. Ensuring a proactive and balanced approach to safety (nuclear, radiological, conventional and environmental) to ensure that safety is optimised during commissioning Reviewing commissioning progress and performance and taking appropriate corrective actions where...

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...

Senior Engineering Draughtsperson / Mechanical Design Draughtsperson Location: Stevenage, Hertfordshire (minimum 2 days/week onsite, remainder remote; more onsite initially to get up to speed) Duration: 6 months Rate: £43-£45 per hour (Umbrella) IR35: Inside IR35 Clearance: SC clearance required to start (UKEO) Overview A leading organisation within the Defence & Security sector is looking for an experienced Senior Engineering Draughtsperson to support the development of 2D and 3D mechanical definitions for complex products. You'll work closely with multi-disciplinary engineering teams to deliver high-quality technical documentation and drawing packs. Responsibilities: Must have a strong background in the ability to create 2D and 3D definitions. In this role, you will develop the 2D and 3D definitions working with the engineer, quality assessing the 3D models you receive for a variety of defence products. Appointments will be made at an appropriate level based on...

Inside IR35 An opportunity to become a member of Europe’s No. 1 Missile Systems company as a design draughtsperson in the mechanical engineering function, you will work closely with a wide range of project teams to develop definitions to meet our manufacturers and customer’s needs. Responsibilities: Must have a strong background in the ability to create 2D and 3D definitions. In this role, you will develop the 2D and 3D definitions working with the engineer, quality assessing the 3D models you receive for a variety of defence products. Appointments will be made at an appropriate level based on skills and experience. Please bring examples of 2D draughting work to show in the interview Skillset/experience required: • Ideally Degree, HND, or HNC in Mechanical Engineering (or equivalent) with relevant industry experience. • Excellent knowledge of BS8888 Technical product documentation and specification, ISO 1101 Geometrical product specifications, ISO 5459 Datum and...

World Class Defence Organisation is currently looking to recruit a Mechanical Design Draughtsperson subcontractor on an initial 6 month contract. Rate: £45.00 per hour Location: Stevenage Hybrid / Remote working: 2 days a week likely onsite.  The rest working from home 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 Draughtsperson Job Description: An opportunity to become a member of Europe’s No. 1 Missile Systems company as a design draughtsperson in the mechanical engineering function, you will work closely with a wide range of project teams to develop definitions to meet our manufacturers and customer’s needs. Responsibilities: Must have a strong background in the ability to create 2D and 3D definitions. In this role, you will develop the 2D and 3D definitions working with the...

Expleo is supporting a prestigious automotive client based in Coventry in recruiting a Facility Engineer to join their Product Engineering - Powertrain Facilities team on a contract basis. This is a fantastic opportunity to work at the forefront of automotive innovation, supporting the development of next-generation propulsion systems-from conventional internal combustion engines to cutting-edge electric and hybrid technologies. 📍 Coventry 💼 Contract (Inside IR35) 💰 £29 per hour (Umbrella) The Role As a Facility Engineer, you will play a key role in ensuring engineering operations deliver timely, high-quality product releases. You will support testing facilities that validate powertrain systems, ensuring equipment availability, compliance, and performance across development programmes. Key responsibilities include: Performing planned maintenance, servicing, and fault rectification across facility equipment Supporting test capability readiness to meet engineering customer...

Stress Engineer (F&DT) 6 month contract Based in Filton Offering £46ph Inside IR35 Do you have experience in Fatigue & Damage Tolerance? Do you have experience in the Aerospace sector? Do you want to work with an industry-leading company? If your answer to these is yes, then this could be the role for you! As the Stress 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: Performing F&DT analysis and compiling justification reports for repair designs and working closely with skilled Design and Static Stress engineers to develop optimum repairs Providing technical guidance and support to the internal teams, including the offshore teams, and any suppliers as required Where necessary, leading packages of work, and...

On behalf of our client, we are seeking to recruit several F&DT Repair Engineers on a for 10 months. As the F&DT Repair Engineer you will be responsible for completing Fatigue & Damage Tolerance analysis and justifications for metallic and composite structures. Role: F&DT Repair Engineer Pay: £46 per hour Via Umbrella Location: Filton Contract: Monday - Friday, 35 Hours per week, 10 months contract IR35 Status: Inside Security Clearance: BPSS Responsibilities Performing F&DT analysis and compiling justification reports for repair designs using approved methods and tools, working closely with skilled Design and Static Stress engineers to develop optimum repairs. Providing technical guidance and support to the internal teams, including the offshore teams, and any suppliers as required. Where necessary, leading packages of work, and integrating with Design and Static Stress teams for a major incident or complex activities. Developing methods and processes...