Principal Software Engineer jobs in Warrington

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...

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...

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...

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...

Principal/Associate Civil Engineer £55,000 - £65,000 Manchester An exciting opportunity has arisen to join a growing consultancy as part of the expansion of a new Manchester office. We're looking for an experienced Civil Engineer who wants more than just a technical role. This is a chance to step into a role with real influence, responsibility and long-term progression, within a supportive...

You will be a vital part of this evolution, contributing your expertise to our strategy and helping us redefine what services we offer our clients.

You will ensure buildings are designed to minimise fire risks, through contributing to the development of fire strategy reports, calculations and fire risk assessments.

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...

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...

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 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 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/...

Job Description An innovative and leading tech company based in the Cheshire area is looking for an Embedded Software Engineer. Were looking for an experienced engineer thats comfortable working down at bare metal as well as through operating systems. Youll be joining a company that offers their employees a strong work life balance, challenging projects and overall, a strong remuneration...

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.

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.

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...

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...

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.

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 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 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...