principal .net engineer jobs in Warrington

You will bring strong experience across Electrical, Control & Instrumentation within water sector projects and be confident leading small teams, delegating work, and managing multiple projects concurrently.

You will also play a key role in documentation approvals, team leadership, and coordination with clients, supply chain partners, contractors and other stakeholders.

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...

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...

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)

You will be working on a varied portfolio of frameworks and projects which are predominantly UK-based but with some overseas opportunities.

You will take the lead and deliver on small projects up to the value of a few £million and provide technical support to end users, Landlords, management agents, project managers and the like.

You will lead complex engineering delivery, influence standards and strategy, and mentor the next generation of engineers.

You will work on nationally significant projects that support energy security, sustainability and net zero ambitions, while continuously developing your technical and leadership capability.

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...

Job Description We are seeking a full-time Principal Engineer with a strong technical background to support our structural engineering team delivering projects within the nuclear sector. This role is ideally suited to an engineer who has developed a solid technical foundation and is now looking to transition into a hybrid role combining technical leadership with emerging people and project...

Position: Principal Building Services Engineer (HVAC) Location: Warrington / Oxfordshire / Glasgow Salary: up to £68,000 Purpose of the job As a senior member of the Engineering Design Management Team, the Principal Engineer will manage multi-discipline engineering resources to ensure design delivery to projects and adherence to the design process and applicable standards. The Principal...

Job Description Job Title: Senior or Principal EC&I Engineer Location: Warrington or Nr Birmingham Contract Type: Contract or Permanent Work Pattern: Hybrid working Role Overview: A new opportunity has arisen for a Senior or Principal Electrical, Control & Instrumentation (EC&I) Engineer to drive technical excellence across complex projects for an independent provider of Nuclear Engineering...

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/...

You will mentor and guide junior and senior engineers, contribute to business development, and uphold the highest standards of design and compliance. Key Responsibilities: - Lead electrical design on a range of high-profile projects - Manage, mentor, and develop a team of engineers

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...

Principal Frontend Engineer – Up to 85k – Remote – SaaS Great opportunity for a Principal Frontend Engineer to join a growing SaaS client on a remote first basis (once a month in the office in Manchester). The client have gone from strength to strength in recent years and work with thousands of clients within their niche. They are now on the lookout for a Frontend focused Principal Engineer to...

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...

You will work within a multi-disciplinary environment, leading electrical engineering delivery across complex projects and taking responsibility for high-quality technical outputs including calculations, reports, specifications and design documentation.

You should be British Citizens and passport holders and not have worked outside the UK during the past 5 years. Essential experience: Experience of SL working practices Previous experience with the design of a broad range of EC&I services. Previous experience with radiological / environmental monitoring systems.

Job Description 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...

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...