10 principal mechanical engineer jobs found

Delivering safe, reliable, and high-integrity solutions for complex nuclear and mechanical systems across regulated environments. The Principal Mechanical Engineer leads the delivery of engineering and technical activities, applying mechanical engineering principles, domain knowledge, and experience. They resolve complex technical issues, ensure compliance with specifications, and support stakeholder requirements while mentoring others and working independently or within small teams. Key Responsibilities • Lead and manage multi-disciplinary teams delivering mechanical engineering work within scope, time, and quality requirements. • Provide technical oversight and approval of engineering outputs (calculations, analyses, reports, specifications, and method statements). • Ensure compliance with relevant codes, standards, and health, safety, and environmental requirements. • Act as a subject matter expert in mechanical systems, solving complex technical problems and supporting...

Principal Mechanical Engineer - Low Carbon Location: Remote with occasional visits to the office for project meetings Team: Energy Transition Shape the future of low‑carbon energy! We're looking for a Principal Mechanical Engineer to join our client's growing Energy Transition Team and play a leading role in delivering the next generation of low‑ and zero‑carbon energy projects. If you thrive on solving complex engineering challenges and want to influence the UK's transition to cleaner energy, this is a role where your impact will be felt for decades. About the Role As a senior member of a multidisciplinary engineering group, you will lead the development of mechanical designs across a diverse portfolio of energy projects - from early‑stage concept work through to construction, operation and eventual decommissioning. The work spans: Conventional power generation Energy‑from‑waste facilities Industrial energy systems Carbon capture, utilisation and storage (CCUS) Future...

Job Specification: Electrical Design Engineer (Senior - Lead) Business Unit: Data Centre Design Consultancy (Client Side) Location: Remote Reporting to: Associate Director/Director Overview We are seeking highly skilled Senior and Lead Electrical Design Engineers to join our specialist data centre design consultancy team. These roles will be responsible for driving the design, coordination, and delivery of complex electrical systems for hyperscale, colocation, and enterprise data centre environments. You will work directly with clients, end users, and multidisciplinary engineering teams to develop high‑quality, technically robust designs from concept through to construction. Core Responsibilities (All Levels) Lead and produce electrical designs for data centre infrastructure including: HV and LV power distribution UPS systems (static and rotary) Standby generation Earthing and bonding Lighting and small power Busbar distribution systems Develop design documentation:...

Our Pharma client is looking for an engineer to join them for a 6-8 month FTC. ideally you would come from a manuvfacturing environment, pharma, food, aerospace, any industry highly regulated, and you would need both mechanical and electrical experience, the site has a steam system, both plant steam and pur steam, as well as purified water systems. This role is 6-8 months and salary quoted is pro rata, there would also be a completion bonus of 10% when the role is finished. You would be responsible for providing ‘hands on’ engineering support to both the Facilities and Manufacturing functions whilst adhering to the site EHS and Pharmaceutical Quality procedures. Principal Responsibilities Routine preventative maintenance requirements for production and facility. Routine instrumentation across the facility. Supporting where required specialised contractors carrying out routine and re-active maintenance tasks. Troubleshooting faults and failures in processing equipment...

C&I Lead / Principal Engineer Location: Glasgow – 3 days per week in office / 2 days from home Rate: £55–£60 per hour (PAYE) + Holiday Pay Hours: 40 hours per week Contract Duration: 12 Months + Sector: Onshore Oil & Gas (Gas Transmission) Overview We are currently recruiting for a C&I Lead / Principal Engineer to support a major project within the onshore oil & gas / gas transmission sector. This position will act as the functional Lead Engineer, responsible for delivering the Control & Instrumentation scope across both FEED and Detailed Design phases. You will lead a team of engineers and designers across the UK and globally, ensuring high-quality, compliant, and timely delivery of all C&I engineering activities. Key Responsibilities Act as the C&I Lead Engineer on a major onshore oil & gas project Lead and coordinate UK and global engineering teams to deliver project scope Manage delivery of C&I engineering activities across FEED...

Principal Pipeline Engineer - Low Carbon Location: Remote with occasional visits to office for Project Meetings Team: Energy Transition Shape the future of low‑carbon infrastructure. We're driven by a simple belief: the world we design today should create a cleaner, greener and safer tomorrow. We push boundaries, embrace innovation and collaborate across a global network of experts to deliver solutions that stand the test of time. Join us, and you'll be part of a team that takes pride in its people, its purpose and its impact. About the Role We're looking for a Principal Pipeline Engineer to join a growing Energy Transition Team. This is an exciting opportunity to lead the development of mechanical and pipeline designs across a wide range of transmission projects, including: * Natural gas (below and above 7 bar) * Hydrogen transmission * Carbon dioxide pipelines * Wider low‑carbon and energy transition infrastructure You'll work as part of a large multidisciplinary...

Our client, a leading entity within the Defence & Security sector, is looking for a Senior/Principal Hardware Engineer to join their team for a contract position based in Rochester. This is a unique opportunity to work on cutting-edge projects involving Helmet Mounted & Head-Up Displays, Mission Computers, Flight Controls, and other associated safety-critical technology. Key Responsibilities: Executing complex hardware design tasks in accordance with the hardware development plan, whilst meeting agreed timescales and allocated budgets Conducting hardware requirements capture, preliminary design, detailed design including a range of analysis tasks Adopting an innovative approach to design and identifying improvements to working practices Working with other disciplines within an integrated team to optimise solutions and minimise impacts from dependencies Providing technical guidance and support to the development and delivery of all aspects of digital &/or analogue...

Principal Operational Highway Engineer Overview: Our client in the North East is seeking an experienced Principal Highways Engineer to lead the operational delivery of highways maintenance and civil engineering services. This position plays a key role in managing day-to-day operational activity, ensuring highway networks are safely maintained, efficiently managed, and delivered to industry best practice. You will oversee maintenance programmes, manage budgets, coordinate inspections, support service improvements, and act as a senior point of contact across technical operations. The role involves close collaboration with internal teams, external partners, and other stakeholders to ensure a consistent, high-quality approach to service delivery. Key Responsibilities: ·Lead the operational delivery of highways and civil engineering maintenance activities. ·Develop, manage, and implement planned and reactive maintenance programmes. ·Oversee budget management across operational...

We are looking for an Electrical Site Manager to oversee an electrical package for a major tunnel upgrade project, including the design, supply, installation, integration, testing, commissioning, and handover of the Tunnel Control System (TCS) and associated tunnel systems. We are seeking an experienced Electrical Site Manager to lead the on-site delivery of all electrical works within a live highways tunnel environment. This role is critical to ensuring safe, compliant, and high-quality installation and integration of complex tunnel systems. Key Responsibilities Site Management & Delivery Manage day-to-day electrical site operations across tunnel works Lead installation of electrical systems including: Tunnel lighting systems LV distribution and containment Emergency systems (UPS, fire alarm interfaces, etc.) SCADA / Tunnel Control System (TCS) infrastructure Ensure works are delivered in line with programme, budget, and quality requirements Coordinate subcontractors,...

Senior / Principal Electronics Engineer (Contract) Power Electronics | Aerospace | Technical Leadership | Cardiff If you’re the person others turn to for power electronics expertise — this is where you take full ownership. This Senior / Principal Electronics Engineer role is about leading the design and development of aerospace power conversion systems that must perform in demanding, safety-critical environments. You’ll be trusted as the technical authority — shaping architecture, making key design decisions, and ensuring systems meet both performance and regulatory expectations. If you enjoy solving complex power challenges and want to influence how systems are designed from the ground up, this role gives you that scope. What You’ll Be Responsible For as a Senior / Principal Electronics Engineer You’ll take ownership of AC/DC and DC/DC converter design across the full development lifecycle. Your work will include: * Leading detailed design and development of aerospace power...