39 principal engineer jobs found

Principal Engineer - Water Infrastructure UK-Wide | Hybrid Working Contract (Minimum 12 Months) Water Sector | Infrastructure & Environmental Projects A respected engineering consultancy is seeking a Principal Engineer to join its expanding water infrastructure team. This is a senior technical leadership role for a Chartered Engineer (or equivalent) with expertise in network modelling, hydraulics, and feasibility design. The position offers hybrid working from offices across the UK, with opportunities to contribute to high-impact water and wastewater projects that support sustainable development and community resilience. Key Responsibilities - Lead the design and delivery of water and wastewater infrastructure projects. - Conduct network modelling and hydraulic analysis to support planning and design. - Develop concept and feasibility designs for water systems. - Ensure engineering solutions meet technical, regulatory, and client standards. - Provide...

Are you a Chartered Civil or Structural Engineer with proven experience in Temporary Works Design? Can you demonstrate leadership in supervising and approving complex engineering designs within major infrastructure projects? What excites you most about working remotely on technically challenging projects that shape the future of UK infrastructure? The Opportunity Are you ready to play a key role in delivering complex engineering solutions for major infrastructure projects? We’re expanding our team and seeking a Principal Engineer to join a leading organisation working on high-profile projects across the UK and overseas. This is an Outside IR35 contract offering remote working flexibility, giving you the freedom to work from home while contributing to technically challenging projects. Your duties and responsibilities will be: * Act as Principal Engineer, preparing design documentation as requested by Lead Engineers. * Supervise, prepare, check, and approve design work in...

Wind Turbine Principal Engineer £65/70 p/h Full time Contract - Outside IR35 (12 months with potential to extend) Kingston Upton Thames - Hybrid role Join a global leader in offshore wind and take a principal role shaping next-generation floating turbine technology. As Principal Engineer, you will be a key technical authority within our Offshore Wind business line, driving turbine design excellence and acting as the primary interface with major turbine OEMs. This is a high-impact opportunity to influence complex engineering challenges and deliver cutting-edge solutions for large-scale offshore wind developments. The Role: Lead the creation and verification of advanced aeroelastic turbine models. Drive turbine controller development, tuning, and performance validation. Conduct comprehensive turbine and controller assessments and support tower design activities. Oversee, support, and verify ILA workflows, working closely with external contractors. Engage directly with...

Principal Engineer - Product Security (Product Security Analyst) Rate: £63.21 PAYE / £85.40 UMB Duration: 12 months (long-term potential) Location: multiple site locations available (approx. 2.5 days on site per week) Hours: 37 per week, early finish Friday possible Start: ASAP Clearance: Must be eligible for UK Security Clearance IMPORTANT: Candidates previously interviewed or rejected under role V05235 must not be resubmitted. About the Role We are seeking a highly skilled Principal Engineer - Product Security to join the Product Security Engineering (PSyE) team, supporting industry-leading submarine programmes. This position acts as a central point for security, assurance, and information risk, ensuring that submarine systems and products are delivered, operated and supported securely throughout their lifecycle. You will apply deep technical expertise to advise stakeholders, shape security strategy, undertake risk assessments, support secure system development, and...

An opportunity has arisen for a Principal Engineer with experience in Traffic Design and Team Management to join a client in London. Your main duties include design and implementation of active travel schemes such as walking and cycling as well as public ream improvement, parking and traffic management projects. Other duties include leading a team of traffic engineering professionals, managing external contractors and consultants and liaising with councillors and members of the public.   This is a full-time contract position. The rate on offer is £45 - £50 per hour - negotiable for the right candidate. Flexible working and working from home arrangements are available.   Working within the Highways team your main duties include: ·Design, implementation and delivery of active travel, low traffic neighbourhood (LTN) and traffic engineering schemes ·Prioritisation of work loads including public realm improvement, parking and traffic management/calming projects    ·Leading a team...

We are looking for a Principal EC&I Engineer to work on a long term contract in Glasgow/Hybrid (typically 3 days in the office and 2 days' from home). Rate is c£55-60 Umbrella per hour/PAYE equivalent. Main Purpose of the Principal EC&I Engineer role: To define and distribute engineering scope to ensure all work is delivered safely, on schedule, and to the required quality standards. This includes delivering design and engineering outputs to support Design Reviews, HAZOPs, and project procedures. The role also involves supervising and developing junior engineers, managing engineering resources, and participating in recruitment activities. Position in the Organisation * Reports to a Principal Engineer, Team Leader, or Department Manager. * Line management responsibilities ultimately sit with the discipline Chief Engineer. * Typically supervises a project or design team of up to five engineering staff, with the potential to integrate additional...

Principal Thermal Engineer JOB LOCATION: Stevenage SECURITY CLEARANCE LEVEL: SC to Start DURATION: 12+ Months Minimum WORK PATTERN: 3 days min a week on site; depending on project workload it could be full time on site (Please assume full time onsite when talking to candidates). Overtime: Yes (Project dependant) PAY RATE: £ 50 Per Hour Umbrella Inside IR35 TARGET INDUSTRIES AND COMPANIES. Is Defence a must? If not what industries can be considered Defence would be beneficial; open to aero, electronics. As long as thermal skillset is apparent. ALTERNATIVE JOB TITLES IN OTHER COMPANIES OR INDUSTRIES (“Thermal Engineer” OR “Aerothermal Engineer” OR “Heat transfer Engineer”) Overview: The Mechanical Analysis Group are looking for a Principal Thermal Engineer to join its team in Stevenage. The group consists of over 30 engineers working across a wide spectrum of cutting-edge military systems. Working for an internationally recognised company, you will play a critical role...

We are looking for a Principal FPGA Design Engineer to lead complex FPGA developments from system requirements through to fully verified hardware. This is a senior, hands-on technical leadership role within a high-performance engineering team. Key Responsibilities Lead FPGA architecture and end-to-end VHDL design Define system-level requirements and implement robust solutions Develop test benches, verification plans, and documentation Support and enhance existing firmware Lead design reviews and release activities Mentor junior engineers and provide technical leadership Requirements Ten years FPGA design experience Proven experience with multi-FPGA systems Strong system architecture and requirements decomposition skills Experience with Radar or DSP applications

Principal Systems Engineer Edinburgh OR Newcastle - fully onsite 12-month contract Paying up to £70p/h (Inside IR35) Role overview: Our client is looking for an experienced Systems Engineer to contribute to the continued development of an in-service radar system, by supporting the planning and analysis of radar trials (rig-based and flight trials). Key Responsibilities: Work with large datasets from rig and flight trials, and use analytical techniques to evaluate radar performance against requirements and raise Systems Problem Reports (SPR) for detailed investigation. Apply signal processing, image processing, and object classification techniques to extract actionable insights. Investigate system anomalies using real trial data, ensuring performance meets specifications. Work collaboratively with multidisciplinary teams to develop and prototype cutting-edge defence solutions. Contribute to System Verification & Validation (V&V) activities as part of the continuous...

Senior Civil/Structural Engineer (Rail) | 9 Months Outside IR35 | Hybrid London, Liverpool, Manchester I am looking for a Senior/Principal Civil/Structural Engineer to support on a wide variety of rail infrastructure projects including stations, platforms, Access for All footbridges, car parks and multidisciplinary framework works. Expereince: Strong technical design skills in civil and/or structural engineering Ability to find practical and creative engineering solutions Experience preparing and checking design packages on Network Rail projects Knowledge of NR standards and multidisciplinary interfaces Experience as (or working towards becoming) a Contractor's Responsible Engineer Chartered or Incorporated Engineer status, or actively working toward it (ICE or IStructE) Experience mentoring and supporting technicians Hands-on experience with relevant design software (e.g., Tekla, Microstation or CAD) ersg are an equal opportunities employer; we are committed to...

Principal Thermal Engineer 12 month contract Based in Stevenage Offering £50ph Inside IR35 Do you have experience carrying out thermal analysis of electronics? Do you have experience with MATLAB/Simulink? 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 Principal Thermal 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: Take ownership of delivering packages of thermal analysis work Provide mechanical analysis support to develop designs and deliver thermal performance evidence Deliver analysis evidence in clear reports with firm conclusion statements Participate in team meetings and design reviews Manage workload against time schedules and...

Job: Principal FPGA Design Engineer Type: Contract Location: Enfield Rate: DOE Role Overview The Principal FPGA Design Engineer is responsible for translating high level system or product requirements into a robust and implementable FPGA architecture. This position covers the full development lifecycle, from initial specification through to verified operation on target hardware. The role also includes providing technical leadership, mentoring colleagues, and contributing to wider product definition activities. Key Responsibilities FPGA Architecture and Development * Interpret and decompose top level system requirements into FPGA architectures suitable for implementation. * Design, implement and debug VHDL based FPGA solutions. * Develop test benches and verification vectors to validate FPGA functionality. * Produce and maintain technical documentation including requirements, functional descriptions and test specifications. * Build...

Our client, engaged in the Public Sector, is currently seeking a Principal Traffic Engineer to join their dynamic team on a contract basis. This role focuses on developing and implementing liveable neighbourhood schemes, ensuring efficient traffic management and enhancing urban transport systems. Key Responsibilities: Leading the design and delivery of liveable neighbourhood schemes Assessing traffic patterns and implementing solutions to improve traffic flow and safety Collaborating with stakeholders, including local authorities and community groups Conducting traffic impact assessments and developing mitigation strategies Providing technical guidance and support to junior engineers Preparing comprehensive reports and presentations for internal and external stakeholders Ensuring compliance with relevant traffic engineering standards and regulations Managing project timelines, budgets, and resources effectively Job Requirements: Significant experience in traffic engineering...

Principal Thermal Engineer - Stevenage Principal Thermal Engineer Location: Stevenage Duration: 12 months, with potential extension Rate: Up to £50 per hour (Umbrella) Clearance: SC required to start Working Pattern: Onsite role (minimum 3 days per week, but assume full-time onsite) We're looking for an experienced Principal Thermal Engineer to join a leading defence engineering team in Stevenage. You'll be part of a well-established Mechanical Analysis Group, working on complex and varied projects that shape the next generation of advanced military systems. The Role You'll take technical ownership of thermal analysis activities, supporting projects from early concept stages through to final performance evidence. This includes: Delivering packages of thermal analysis work with clear conclusions Using a mix of hand calculations and Finite Element methods (e.g. ANSYS) Producing thermal studies involving conduction, convection and radiation Supporting thermal analysis of...

Job Title: Principal Thermal Engineer Location: Stevenage Pay Rate: Up to £50p/h Inside IR35 Contract Length: 12 Months - Likely To Extend Key Skills: Thermal Analysis, Finite Element Analysis (FEA), MATLAB / SIMULINK, Thermal Design Authority, Defence, Engineering Join Our Team as a Principal Thermal Engineer and Drive Thermal Design to New Heights! Are you a meticulous Principal Thermal 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 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 Thermal Engineer to contribute to our continued success. The Role: So, what...

Our client, an Aerospace and Defence supplier is looking for a Principal Thermal Engineer to join them on a contract basis at their site in Stevenage. Due to the nature of the role, applicants must hold the British nationality and be willing to obtain full SC Clearance ahead of starting. 12 month initial contract. Fully onsite in Stevenage. £50 p/h Umbrella, inside IR35.Responsibilities: Take ownership for delivering packages of thermal analysis work. Provide mechanical analysis support to develop designs and deliver thermal performance evidence. Deliver analysis evidence in clear reports with firm conclusion statements. Participate in team meetings and design reviews. Manage workload against time schedules and report progress regularly to stakeholders. Responsible for dealing and collaborating with project stakeholders (internal & external).Skillset/experience required: Degree qualified in a STEM subject. Proven ability to carry out thermal analysis through the application...

World Class Defence Organisation based in Stevenage, Hertfordshire is currently looking to recruit a Principal Thermal Engineer Subcontractor on an initial 12 month contract.   Hourly Rate: £50.00  Overtime Rate: Hours worked over the standard 37 hours per week, will be paid at ‘time and a quarter’ Location: Stevenage Hybrid / Remote working: The role will likely be onsite 3 days per week. Duration: 12 Months with very likely extension. Contracts are often ongoing and long-term thereafter.  IR35 status: Inside IR35 (Umbrella) Interview process: One stage onsite interview   Principal Thermal Engineer Job Description: The Mechanical Analysis Group are looking for a Principal Thermal Engineer to join its team in Stevenage. The group consists of over 30 engineers working across a wide spectrum of cutting-edge military systems. Working for an internationally recognised company, you will play a critical role in ensuring that products deliver the necessary performance against key...

Principal Digital Hardware Engineer Certain Advantage is hiring for a Principal Digital Hardware Engineer based in the Edinburgh area. This role is on a contract basis and is hybrid-based. The Company We’re working with an engineering company specialising in solving complex engineering challenges across various industries—from aerospace and automotive to healthcare and semiconductors. Does this sound like your next career move? If you’re ambitious to grow, this may be your next role? The Role: This role is for a Principal Digital Hardware Engineer—someone ambitious and ready to make an impact. You’ll be results-oriented and driven to succeed. You’ll be leading a small, experienced, and collaborative team, and be responsible for: Creating high-quality and robust digital electronics designs Documenting and recording deliverables Supporting integration & verification activities at the hardware and system level Keeping designs under configuration control Providing progress...

Contract Principal Civil Engineer London Immediate Start Up to £55 p/h (depending on experience) Outside IR35 Contract Principal Civil Engineer A fast paced, dynamic engineering consultancy based in London is looking to hire a Contract Principal Civil Engineer for a minimum 6 month Outside IR35 assignment. Our client is working on the Picadilly Line Upgrade and need an experienced individual with knowledge of cable route management (CRM) design. The role will be a leadership role, primarily involving client interface management and management of other more junior staff members. You will have full control of the project and will be working under the guidance of the Project Director. Previous LUL and Network Rail experience is a must for this role. You will be required to be in our clients offices for 3 days a week, while the remaining 2 can be remote. On offer is an hourly rate depending on experience up to £55 p/h in an Outside IR35 capacity. Our client is looking to start the...

Senior Mechanical Engineer – Contract – West Wales / Hybrid Location: West Wales / Hybrid This is an excellent opportunity to join a leading engineering business during a period of continued growth as they support the Oil & Gas, Petrochemical and Renewable Energy sectors. This role is deemed to be outside IR35. Our client is based in West Wales and can accommodate a hybrid working pattern. Role & Responsibilities * Participate in relevant meetings such as Design Reviews, Model Reviews and HAZIDs. * Execute all Piping/Mechanical Engineering activities and maintain technical integrity. * Familiarity with piping, static equipment and rotating equipment. * Develop and contribute to mechanical equipment specification / datasheets to allow purchase of range of equipment. * Oversee designers in the development of multi-discipline plant upgrade project. * Supporting the development of Mechanical and Piping layout for a range of energy projects at different...