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principal electrical engineer

11 principal electrical engineer jobs found

CL
Apr 11, 2026  
Principal Electrical (EC&I) Commissioning Engineer
We are seeking an experienced Principal Electrical (EC&I) Commissioning Engineer to support a major defence project at a secure, highly regulated site near Reading. This is a senior, site-based role requiring a high level of technical expertise, leadership, and experience in commissioning, testing, and assurance of electrical and control systems within safety-critical environments. Role: Principal Electrical (EC&I) Commissioning Engineer Location: Reading (site-based) Rate: £70 per hour Inside IR35 (Based on year's experience) Employment Type: Contract 12 Months Key Responsibilities ·Lead and oversee the commissioning, testing, and validation of electrical and EC&I systems on a complex defence project and provide technical leadership and mentorship to junior commissioning engineers and site teams. ·Develop, review, and approve commissioning strategies, test procedures, and method statements, alongside supervising functional testing, fault finding, and troubleshooting...
IR35 Status:
Inside IR35

CV-Library Reading, UK Contractor
CL
Apr 17, 2026  
Electrical Design Engineers - Senior to Lead Roles
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:...
IR35 Status:
Unknown Status

CV-Library Windsor, Berkshire Contractor
CL
Apr 15, 2026  
Maintenance Engineer FTC
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...
IR35 Status:
Unknown Status

CV-Library Farnham, Surrey Contractor
CL
Apr 15, 2026  
C&I Lead/ Principal Engineer
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...
IR35 Status:
Unknown Status

CV-Library Glasgow, UK Contractor
CL
Apr 12, 2026  
Contract Senior / Principal Electronics Engineer
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...
IR35 Status:
Unknown Status

CV-Library Cardiff, South Glamorgan Contractor
CL
Apr 12, 2026  
HV Design Engineer
I'm recruiting for a HV Design Engineer to work on a long contract outside of IR35 to work with a leading international engineering and consulting group. They work in close partnership with clients to solve complex challenges around the movement of people, goods, and services-delivering innovative, resilient infrastructure solutions. With a strong focus on future-ready design, they are at the forefront of developing smarter, more efficient infrastructure that responds to evolving technologies, changing behaviours, and increasing demand. Their approach puts people at the heart of design, combining technical excellence with a collaborative, forward-thinking culture. With ambitious growth plans in the UK, this is an excellent time to join the business as they continue to expand their footprint and reputation across the energy and infrastructure sectors. Hybrid working based out of offices in either London, Birmingham, York, Manchester, Edinburgh or Reading. They are seeking a...
IR35 Status:
Outside IR35

CV-Library Greater Manchester, UK Contractor
CL
Apr 11, 2026  
C&I Lead Principal Engineer
Job Title: C&I Lead Principal Engineer Location: Glasgow  Overview: C&I Lead Principal Engineer based in Glasgow on a 12 month contract duration. Responsibilities: •    Work activities will include project work as the functional Lead Engineer on a Project for Gas transmission industry. •    Lead a team of Engineers and Designers both based in the UK and globally to deliver the C&I scope of work on the project. •    Work activities will be executed across FEED and Detailed Design phases of projects. •    Project work will include the development of Control & Instrument Engineering deliverables. Qualifications: Skills / Qualifications: •    Experience in Control & Instrument Engineering Design on Medium / Large capital projects from concept to start-up. •    Extensive experience in Gas industry. •    Previous experience on NGT projects preferable and/or G35 approver experience is preferred. •    Competent in working within the C&I Discipline of a...
IR35 Status:
Unknown Status

CV-Library Glasgow, UK Contractor
CL
Apr 10, 2026  
Principal Safety engineer
Role: Principal Safety Engineer Location: Plymouth(Hybrid) Duration: 12 months Inside IR35: Umbrella About our client: Our client in Devonport is a leading engineering and maritime organisation specialising in the maintenance, repair, and overhaul of naval vessels. The site operates with a skilled workforce across mechanical, electrical, and technical disciplines, delivering high-quality and complex engineering projects. It offers a structured and collaborative working environment with opportunities for hands-on experience and professional development. Main Purpose of Role Responsible for ensuring the delivery of the safety engineering aspects of the facility. Ensure systems are designed against a clear statement of compliance with defined requirements, including demonstration that the design meets relevant HSE requirements. Guiding the development of engineering to the required scope and quality to support timely delivery of the project. Review of Safety Engineering...
IR35 Status:
Inside IR35

CV-Library Plymouth, Devon Contractor
CL
Mar 31, 2026  
Senior C&I Engineer
Senior / Principal C&I Engineer – Staff Location: West Wales This is an excellent opportunity to join a leading engineering business during a period of continued growth as they support the Oil & Gas, Petrochemical, Renewable Energy, Hydrogen and Nuclear sectors. TUV Certified status would be a bonus, though not essential. Role & Responsibilities * Undertaking work providing Process Engineering support to a range of CAPEX and OPEX projects. * Performing safety specification and certification of safety instrumented systems. * Carry out SIL Verification using simplified equations. * Undertake design and checking of deliverables according to discipline and area of expertise. * Checking the quality of design work to ensure compliance with agreed client design specifications. * Preparation and checking of deliverables including drawings, schedules, datasheets, specifications, (input to control philosophies and narratives if applicable). * Development...
IR35 Status:
Unknown Status

CV-Library United Kingdom Contractor
CL
Mar 31, 2026  
Senior / Principal C&I Engineer
Senior / Principal C&I Engineer – Contract Location: West Wales This is an excellent opportunity to join a leading engineering business during a period of continued growth as they support the Oil & Gas, Petrochemical, Renewable Energy, and Hydrogen sectors. TUV Certified status would be a bonus, though not essential. Role & Responsibilities * Undertaking work providing Process Engineering support to a range of CAPEX and OPEX projects. * Performing safety specification and certification of safety instrumented systems. * Carry out SIL Verification using simplified equations. * Undertake design and checking of deliverables according to discipline and area of expertise. * Checking the quality of design work to ensure compliance with agreed client design specifications. * Preparation and checking of deliverables including drawings, schedules, datasheets, specifications, (input to control philosophies and narratives if applicable). * Development of...
IR35 Status:
Outside IR35

CV-Library United Kingdom Contractor
CL
Apr 16, 2026  
Electrical Site Manager
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,...
IR35 Status:
Unknown Status

CV-Library Plymouth, Devon Contractor
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