70 mechanical project engineer jobs found

On behalf of our client, we are seeking to recruit a Building Services Engineer on an initial 12 -month contract. As the Building Services you will be overseeing and inspecting building services installations (Mechanical, Electrical, and Fabric) on our projects to ensure they meet the highest standards of quality, compliance, and design specifications. Role: Building Services Engineer Pay: Up to £40 per hour Via Umbrella Location: Portsmouth or Stevenage Contract: Monday - Friday 37 hours per week, 12 months IR35 Status: Inside Security Clearance: BPSS and must be able to get SC clearance Responsibilities Site Inspection & Quality Assurance: Conduct regular, thorough site inspections of all building services and building installations (HVAC, plumbing, electrical, fire systems, controls, structure etc.) to ensure compliance with drawings, specifications, statutory regulations (e.g., Building Regulations, Health & Safety), and industry best practices. Defect...

On behalf of our client, we are seeking a Electronics Design Engineer to join my client on an initial 12 month contract. As the Electronics Design Engineer you will be responsible for developing cutting-edge electronic solutions for weapon systems. This will include on board missile sub-systems and Land, Sea and Air based Firing Units. Your role will entail responsibility for the quality and performance of the electronic solution together with providing cost and schedule updates to a project manager. Role: Electronics Design Engineer Pay: Up to £58 per hour via Umbrella Location: Stevenage Contract: Monday - Friday 37 hours per week, 12 months contract IR35 Status: Inside Security Clearance: Security Clearance before starting Responsibilities: You will be responsible for developing cutting-edge electronic solutions for weapon systems. This will include on board missile sub-systems and Land, Sea and Air based Firing Units. Your role will entail responsibility for the...

NX Engineer Location: Derby (Hybrid Options Available) Employment Type: Contract (Inside IR35) Day Rate: £500per day About the Role ARM is seeking an experienced NX Engineer to support major programmes within the UK's nuclear and high-integrity engineering sectors. This is an exciting opportunity to contribute to nationally significant projects involving complex mechanical systems, precision engineering, and high-standards design environments. You will be responsible for creating, modifying, and managing 3D CAD models and manufacturing drawings using Siemens NX and Teamcenter. The role requires strong modelling, drafting, and design interpretation skills, as well as the ability to work collaboratively within multidisciplinary teams. Key Responsibilities Produce detailed 3D models and assemblies from design concepts and specifications Generate high-quality manufacturing drawings for components Work closely with design teams to ensure models and drawings align with design...

Contract Opportunity: Senior / Principal Mechanical Engineer - Hybrid (Sellafield Projects) Rate: £51-£61 per hour (Inside IR35) Location: Hybrid - 3 days per week in Cumbria office Sector: Nuclear - Task Delivery Projects Are you an experienced Mechanical Engineer ready to lead and deliver complex projects for Sellafield? We are seeking a Senior or Principal Mechanical Engineer to provide technical expertise and drive the delivery of task-based projects across the site. This hybrid role combines focused on-site work in Cumbria with the flexibility to work remotely. Key Responsibilities: Deliver and manage mechanical engineering tasks across multiple project stages Develop and review designs, calculations, and technical documentation Ensure compliance with Sellafield standards, nuclear safety requirements, and site licence conditions Support design reviews, risk assessments, and HAZOP activities Mentor and guide junior engineers, providing technical leadership and...

Are you an Asset Protection Engineer with experience in civil, mechanical and electrical projects? Have you worked in both construction and design on multi discipline projects?   Contract Length: 6 months Location: Swindon (On site or in office 3 days per week) Rate: £350-£400 umbrella (Inside IR35)   The Asset Protection Engineer will lead compliance with Network Rail's engineering-driven safety requirements, ensuring robust technical advice, approvals, and risk mitigation across outside and third-party schemes. This role safeguards railway operations and infrastructure integrity while supporting safe, cost-effective, and environmentally responsible project delivery. Essential Requirements ·Technical qualifications to HNC/HND or equivalent GNVQ level. ·Experience managing outside/third-party activities and mitigating associated risks. ·Relevant engineering experience, ideally across multi-disciplinary construction and design projects. ·Strong knowledge of technical,...

Principal Mechanical Engineer (12 month contract) Location: Warrington or Preston or Leicester (Hybrid working) Rate: £60a-£80 per hour (Umbrella, inside IR35) Clearance: Must be eligible for NNPPI and SC security clearance A great opportunity has just opened up for a Principal Mechanical Engineer to support a major UK defence decommissioning programme focused on the safe, sustainable dismantling of legacy assets. This is a highly regulated environment where engineering quality, safety and innovative problem solving are absolutely central. The role involves leading mechanical engineering activities on complex decommissioning systems, with a strong focus on mechanical handling, cutting technologies, and integration of bespoke tooling into challenging environments. What you'll be doing Leading multidisciplinary engineering teams and overseeing delivery of complex mechanical design solutions. Acting as the primary technical point of contact for internal and external...

Principal Mechanical Engineer (12 month contract) Location: Warrington or Preston or Leicester (Hybrid working) Rate: £60a-£80 per hour (Umbrella, inside IR35) Clearance: Must be eligible for NNPPI and SC security clearance A great opportunity has just opened up for a Principal Mechanical Engineer to support a major UK defence decommissioning programme focused on the safe, sustainable dismantling of legacy assets. This is a highly regulated environment where engineering quality, safety and innovative problem solving are absolutely central. The role involves leading mechanical engineering activities on complex decommissioning systems, with a strong focus on mechanical handling, cutting technologies, and integration of bespoke tooling into challenging environments. What you'll be doing Leading multidisciplinary engineering teams and overseeing delivery of complex mechanical design solutions. Acting as the primary technical point of contact for internal and external...

Electronics Design Engineer 12 month contract Based in Stevenage Offering £58ph Inside IR35 Do you have experience in Electronic Design? 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 Electronics Design 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: Responsible for developing cutting-edge electronic solutions for weapon systems Responsibility for the quality and performance of the electronic solution together with providing cost and schedule updates to a project manager Electronic design capability throughout the product life cycle, i.e. early concept through to production Implementing technical solutions across the Power and Analogue...

World Class Defence Organisation is currently looking to recruit 3x 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: Your base site can be either Stevenage or Bristol, depending on your preference Hybrid / Remote working: 4 days per week onsite and 1 day remote (flexible on start and finish time) 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...

World Class Defence Organisation is currently looking to recruit 3x 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: Your base site can be either Stevenage or Bristol, depending on your preference Hybrid / Remote working: 4 days per week onsite and 1 day remote (flexible on start and finish time) 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...

World Class Defence Organisation is currently looking to recruit 3x 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 Hybrid / Remote working: 4 days per week onsite and 1 day remote (flexible on start and finish time) 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 you will have the opportunity to...

Senior Mechanical Design Engineer – Automotive Test Facilities  Gaydon, Warwickshire 7-month contract Rates: Negotiable (Inside IR35) We are seeking a Senior Mechanical Design Engineer to join a leading automotive organisation, supporting the development and delivery of advanced vehicle test facilities. This role is ideal for an experienced engineer who enjoys working on complex test rigs, bespoke fixtures, and facility components that enable cutting-edge vehicle testing. The Role You’ll be responsible for the design, validation and delivery of test rigs and facility components used across a wide range of engineering labs, including structural, durability, NVH, climatic, and safety testing. Projects will vary from component-level to full vehicle applications, giving you exposure to multiple disciplines. Key Responsibilities Design test rigs and components using 3DX/Catia V6, from concept to delivery. Produce 2D manufacturing drawings for internal workshops and external...

World Class Defence Organisation is currently looking to recruit 2x Industrial Manufacturing Auditor subcontractors on an initial 6 month contract.  The role can be based from either the companies Stevenage or Bolton site, depending on your preference.  The role will be predominantly working from home with just two day’s onsite. Trained auditor to AS9100 is essential. This role would suit a candidate with a strong Supplier Quality Engineer background.   Job Title: Industrial Manufacturing Auditor Rate: £35.00 per hour Location: Stevenage or Bolton site, depending on your preference   Hybrid / Remote working: 2 day per week onsite 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) Industrial Manufacturing Auditor Job Description: An opportunity has arisen for an Industrial Engineering Auditor professional to...

World Class Defence Organisation is currently looking to recruit 3x 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: Your base site can be either Stevenage or Bristol, depending on your preference Hybrid / Remote working: 4 days per week onsite and 1 day remote (flexible on start and finish time) 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...

World Class Defence Organisation is currently looking to recruit 3x 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: Your base site can be either Stevenage or Bristol, depending on your preference Hybrid / Remote working: 4 days per week onsite and 1 day remote (flexible on start and finish time) 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...

Cryptography Infrastructure Engineer We are looking for a Cryptography Infrastructure Engineer to join a financial services client based in Sheffield. There will be a requirement to be in the office once every two-weeks. The contract is also inside IR35. The Role The objective will be to support the Cryptography team who are responsible for protecting the identity, confidentiality and authenticity of trillions of dollars of transactions globally. We are looking for an SME in cyber security and cryptography who can help improve their HSM observability for their entire encryption estate. The existing HSM observability is ready to be taken to the next level, improving its resilience, increased monitoring capabilities and faster alerting. We specifically require someone with expertise in either Thales Luna, nShield or payShield HSMs. Key Responsibilities: * Be part of a team that implements a new monitoring and alerting solution based upon Splunk * Have specific knowledge...

Role: Mechanical Design Engineer Duration: 12 months Location: Stevenage, SG1 2BP (on-site 2-3 days per-week) Rate: Up to £55/hour (Umbrella) Inside IR35 We are seeking an experienced Mechanical Design Engineer to join an innovative R&D team in Stevenage on a 12-month contract. This role will focus on the design and development of advanced hardware solutions for next-generation bioprocessing technologies. Key Responsibilities: Lead hardware development projects, including new product features and assembly processes. Produce design specifications, drawings, prototypes, testing plans, and technical reports. Collaborate with suppliers on prototypes and pre-production builds, supporting transfer into manufacturing. Conduct laboratory testing to support design validation, verification, and troubleshooting. Utilise CAD software and prototyping methods including 3D printing, CNC machining, and injection moulding. Requirements: Degree in Mechanical/Design Engineering (2:1...

Design Integrator Location: Broughton (Onsite Requirement) Contract Duration: Until 15/12/2026 (Likely to be extended) Hours: 35 hours per week (4.5 days, flexible between 7am - 7pm) Clearance: BPSS+ required Inside IR35 About the Role We are seeking a Design Integrator to join the Wing Plant Engineering Team, supporting continuous product development and incremental improvement projects. This role is pivotal in bridging engineering and operations, ensuring technical solutions meet industrial requirements while maintaining a customer-focused perspective. You will lead improvement projects, manage deliverables to time, cost, and quality, and act as the main interface between engineering and operational teams. The position offers an excellent opportunity to develop technical and leadership skills in a collaborative environment. Key Responsibilities As a Design Integrator, you will take ownership of improvement projects and lead them through the LBIP process, ensuring that...

Job Title: Interconnect Design Engineer Location: Stevenage Pay Rate: Up to £60p/h Inside IR35 Period: 6 Months - Likely To Extend Key Skills: Zuken E3, Harness Design, Windchill PLM, Creo, Electrical Schematics, E.3 Cable, Cable Assemblies Join Our Team as an Interconnect Design Engineer and Drive Zuken E3 to New Heights! Are you a meticulous Harness Design Engineer with a passion for precision and excellence? Are you ready to play a pivotal role in ensuring top-tier standards in a well-established engineering organization? Look no further! We invite you to join our team in Stevenage and be a key driver of engineering excellence. About Us: As a distinguished leader in the Defence engineering industry, we are dedicated to delivering innovative solutions and pioneering projects. Our commitment to excellence has earned us a strong reputation, and we're looking for a talented Zuken E3 Harness Design Engineer to contribute to our continued success. The Role: So, what will...

Operational Technology (OT) Engineer/SME Duration: initial 9 months (2-5 year programme) Rate: £1000 per Inside IR35-Umbrella only Location: Edinburgh - remote with occasional days in the office per month Job description: OT Application Performance Improvement Responsible for the continual performance improvement of the business-critical Operational Applications. This work includes improving monitoring and management of operational systems to reduce the number of faults that cause disruptions to the customer's service and developing a Strategic Asset Management Plan for the OT Applications and Infrastructure. Design Authority for development of OT Infrastructure Responsible for authorising developments in current OT infrastructure working with the Application suppliers, SSE IT, Neos Networks and the SSE customer to develop, test and authorise any changes to architecture of existing Platinum, Gold and Silver level OT Applications. Approval of Operational Application...