Principal Engineer jobs in Warrington

Job Description Join a leading consultancy delivering transformative engineering solutions across the nuclear, renewable energy, and high-energy industrial sectors - including data centres and hydrogen production facilities.This is a senior opportunity to shape nationally significant projects, from supporting the UK's nuclear fleet and advancing Small Modular Reactor (SMR) technologies, to...

Looking for a RE or Principal EC&I Engineer For CE&I design for SMPrO Projects. Contract Role inside IR35. You can get further details about the nature of this opening, and what is expected from applicants, by reading the below. Required to lead a team of CE&I engineers and designers. Sellafield experience is essential. SC will be needed. Location: Warrington - Hinton House, hybrid minimum 3...

Job Description Principal Geotechnical Engineer (Warrington) Reference: BY93716 Salary: £40,000 - £50,000 Are you a Geotechnical Engineer seeking the next step in your career? An innovative and expanding ground investigation team near Warrington are looking to bring a ground investigation specialist into their expanding team. With excellent career progression opportunities, support to...

Overview of Role We are looking for a Principal Electrical Building Services Engineer to take a lead role in the design and delivery of technically complex projects across healthcare, public sector, education and commercial environments. This position blends hands-on technical expertise with client engagement and team leadership, within a forward-thinking MEP consultancy with a strong...

Job Description Senior/Principal Civil Engineers Location: Hybrid working with 2-3 days per week in United Utilities Lingley Mere office. Site visits as required. Permanent, full-time Competitive salary plus benefits We are seeking Civil Engineers with a thorough understanding of wastewater networks and treatment schemes, flood risk management, and drainage schemes. What this role...

You will be working alongside a multi-disciplinary team of water project experts on a range of capital delivery projects.

You will have a substantial opportunity to contribute towards optioneering, outline, and detailed design expertise across various frameworks.

You should demonstrate the ability to work independently and as part of a collaborative team sharing knowledge and best practice

Job Description My client is a well-established business who have developed a reputation for providing excellent quality mechanical and electrical building services design, positioning themselves as preferred design consultants for a host of prestigious clients across a range of sectors. To kickstart 2026 they are introducing Data Centre work and they are looking for a Senior/ Principal/...

Principal Software Engineer Fully Remote | Permanent | Competitive Salary + Benefits Harrington Starr has partnered with a leading Global Payments Technology company who are seeking to hire a Principal Software Engineer to join their senior engineering leadership team. This is a rare opportunity to combine hands-on development with strategic influence, guiding architecture decisions and shaping...

Opportunities Available – Principal, Senior & Project Engineers Our client is also open to appointing Senior Engineers and Project Engineers, alongside a Principal-level hire, to support continued growth across their project portfolio. About the Company Our client is a well-established, specialist risk engineering consultancy operating at the forefront of protective and extreme load design....

Principal Software Developer – Manchester (central) 3 days a week in office with flexible start/finish – strong benefits – up to £90,000 (flexible for the right person) I'm working with a high‐growth tech business looking for a Principal Software Developer to take a leading, hands‐on role across their platform. You'll design and deliver complex features, shape architectural decisions, and drive...

You will support in reverse engineering and deep understanding of vulnerabilities, including impact analysis and automation.

You must relish the challenge of findings critical vulnerabilities in complex software binaries through automation and manual practices. Creativity is highly valued; being able to find novel vulnerabilities is essential in this role.

Join OCI's Edge Security team as a Principal Engineer to architect and deliver cloud-scale DDoS protection. You'll lead design for high-performance detection and mitigation systems, drive automation and operational excellence, and set the technical direction for customer-facing DDoS capabilities across OCI's global edge. This role requires deep expertise in Linux networking data path and...

You will provide advice to clients and will take responsibility for managing and cultivating client relationships and securing new work.

You should be able to lead, or demonstrate the competency to lead, a team of less experienced staff as you may have line management responsibility.

Job Description Location: Hybrid working with 2-3 days per week in United Utilities Lingley Mere office. Site visits as required. Permanent full-time(40 hours) Competitive salary plus benefits We are seeking Mechanical Engineers with extensive experience and understanding of sewage treatment processes and the equipment/system requirements. What this role requires: - Extensive experience...

You will ideally have: - BEng or MEng in Mechanical Engineering or Building Services - Chartered Engineer status - Membership of a relevant professional body (e.g. MCIBSE, MIMechE)

Job Title: Principal Safety Case Engineer Location: Warrington Leicester Bristol Newbury + Hybrid Working Type: Full Time, Permanent Salary: Competitive + Excellent Benefits We're looking for a permanent Principal Safety Case Engineer to join our growing team, helping deliver key nuclear safety projects across the UK. You'll play a leading role in developing safety case strategies and guiding...

Job Description Our client is a well-established business who have developed a reputation for providing excellent quality mechanical and electrical building services design, positioning themselves as preferred design consultants for a host of prestigious clients across a range of sectors. To kickstart 2026 they are introducing Data Centre work and they are looking for a Senior/ Principal/...

Job Title: Principal Safety Case Engineer Location: Warrington Leicester Bristol Newbury + Hybrid Working Type: Full Time, Permanent Salary: Competitive + Excellent Benefits We're looking for a permanent Principal Safety Case Engineer to join our growing team, helping deliver key nuclear safety projects across the UK. You'll play a leading role in developing safety case strategies and guiding...

Job Title: Principal Safety Case Engineer Location: Warrington Leicester Bristol Newbury Hybrid Working Type: Full Time, Permanent Salary: Competitive Excellent Benefits We're looking for a permanent Principal Safety Case Engineer to join our growing team, helping deliver key nuclear safety projects across the UK. You'll play a leading role in developing safety case strategies and guiding project...

Job Description Principal Electrical Design Engineer – Nuclear Location: Hybrid (Manchester, occasional site/client visits) Sector: Nuclear We're looking for a Principal Electrical Design Engineer to lead the delivery of challenging projects across the Nuclear Energy sector. You'll work on everything from concept studies to detailed design, producing high-quality electrical engineering...