26 to 50 of 57 Principal Software Engineer Jobs in England

Description Principal Software Engineer Salary: Negotiableplus benefits, pension (7% contribution), 25 days holiday & life insurance We are looking for principal software engineers with diverse experience. We are a small but rapidly growing consultancy, owned highly experienced and recognised practitioners in UK defence consultancy. ...

Principal Software Engineer Luton 12-Month Contract Paying up to £79p/h (Inside IR35) Please note - due to the nature of the work, you will need to hold or be eligible to obtain a high level of UK Security clearance - please only apply if suitable … Responsibilities: Support the specification, design, coding, and testing of complex real-time embedded software in Ada, producing mission-critical quality software, to high integrity levels, company standard,s and customer requirements. Take ownership of complex tasks across the full software lifecycle from requirements to integration, testing ...

Principal Software Engineer Luton 12-Month Contract Paying up to £79p/h (Inside IR35) Please note - due to the nature of the work, you will need to hold or be eligible to obtain a high level of UK Security clearance - please only apply if suitable … Responsibilities: Develop robust applications using C# .NET within a Windows environment. Take ownership of complex tasks across the full software lifecycle-from requirements to integration, testing and delivery. Apply object-oriented design principles and verification/validation techniques. Collaborate with a skilled team while maintaining independence in your work. ...

Principal Engineer Post-Purchase & Fulfilment | London (Hybrid) | Up to £155,000 Principal Engineer's! Own the end-to-end architecture of how a physical product moves from factory floor to customer doorstep. Design led consumer brand with over 30 million customers worldwide. This is a rare ...

Shape how safety-critical software is verified at the highest level. We're partnering with a growing, highly respected engineering SME specialising in safety-critical embedded systems . They are looking for a Principal Software Engineer to play a key role in developing and assuring high … integrity embedded software, including a safety-certified real-time operating system. This is a hands-on software engineering role within the verification team, combining technical leadership with deep involvement in verification, validation, and certification activities. The Role You'll operate as a senior technical authority while remaining close ...

Software Test Engineer – SC Cleared - Luton Our client is looking for an experienced Software Test Engineer to support the delivery of current and future programmes. This role provides an opportunity to work on the latest technology within a mature development environment. Your Role • Create test cases … results, produce detailed reports, and provide recommendations for improvements. • Ensure compliance with company standards and internal processes. About You: As an experienced SC Cleared, Software Test Engineer, your skills and experience will include; • ISTQB Foundation level knowledge • Strong background in testing complex real-time embedded systems. • Proficiency ...

Senior/Principal Software Engineer Application Deadline: 31 May 2026 Department: Software Engineering Employment Type: Permanent Location: London (Hybrid) Compensation: £70,000 - £100,000/year Description Please note: This role requires applicants to hold active, or recently active, SC or DV clearance. This role also … kind that have to be secure, scalable, and actually usable by the people who rely on them. We’re looking for Senior and Principal Engineers who want to shape meaningful systems, influence technical direction, and work alongside capable people who care about doing the job properly. You’ll help ...

Senior/Principal Software Engineer Application Deadline: 31 March 2026 Department: Software Engineering Employment Type: Permanent Location: Cheltenham (Hybrid) Compensation: £70,000 - £100,000/year Description Please note: This role requires applicants to hold active, or recently active, SC or DV clearance. This role also … kind that have to be secure, scalable, and actually usable by the people who rely on them. We’re looking for Senior and Principal Engineers who want to shape meaningful systems, influence technical direction, and work alongside capable people who care about doing the job properly. You’ll help ...

leading aerospace technology company in Tewkesbury is seeking an experienced Senior Principal Software Engineer to drive software development for advanced flight control and actuation systems. This hybrid role requires over 15 years in software engineering, in-depth expertise in safety-critical software, and proficiency ...

leading aerospace technology company in Tewkesbury is seeking an experienced Senior Principal Software Engineer to drive software development for advanced flight control and actuation systems. This hybrid role requires over 15 years in software engineering, in-depth expertise in safety-critical software, and proficiency ...

Principal Software Engineer Portsmouth | Hybrid, 3 days onsite £75,000-£85,000 plus bonus and benefits Want to work on groundbreaking projects within the defence industry? Are you a hands-on technical leader with strong C++ and Unreal Engine expertise and want to work at the forefront … complex, performance-critical software delivery within defence? The role combines advanced engineering with genuine technical authority, shaping how simulation-driven and autonomy-focused systems are designed, built and evolved. The position sits within a fast-growing software and data science consultancy delivering end-to-end solutions ...

About the Role We’re seeking a highly skilled and experienced Principal Embedded Displays Software Engineer (Qt) to lead the development of advanced Human–Machine Interface (HMI) applications for next‐generation embedded display systems. In this senior technical role, you will drive technical excellence across display software … robust user interfaces using the Qt framework. You will also act as a technical leader and mentor, supporting the growth and development of software engineers within the team while collaborating closely with cross‐functional stakeholders. This role is ideal for someone passionate about embedded HMI technology who enjoys combining ...

Shape how safety-critical software is verified at the highest level. We're partnering with a growing, highly respected engineering SME specialising in safety-critical embedded systems . They are looking for a Principal Software Engineer to play a key role in developing and assuring high … integrity embedded software, including a safety-certified real-time operating system. This is a hands-on software engineering role within the verification team, combining technical leadership with deep involvement in verification, validation, and certification activities. The Role You'll operate as a senior technical authority while remaining close ...

Gemba Advantage is seeking a Senior/Principal Software Engineer to design and deliver secure, scalable software solutions while working in small agile teams. The role requires active SC or DV clearance and entails championing modern engineering practices, shaping architectural direction, and influencing technical decisions. Candidates ...

modern platforms, intelligent automation, AI-enabled capabilities, and engineering excellence to create secure, scalable, and insight-led digital solutions.We are looking for a Principal Software Development Engineer to play a pivotal role in shaping the future of our customer-facing digital platforms and technology solutions. This … portals, communications and collection services.Set technical direction and engineering standards across teams, promoting modern cloud-native and AI-augmented engineering practices.Mentor and support Software Development Engineers and Forward Deployed Engineers, building capability and fostering a culture of continuous improvement.Support DevSecOps excellence through CI/CD pipelines, Infrastructure as Code ...

Software Test Engineer - SC Cleared - Luton Our client is looking for an experienced Software Test Engineer to support the delivery of current and future programmes. This role provides an opportunity to work on the latest technology within a mature development environment. Your Role Create test cases ...

shaping architecture, improving products and unblocking delivery. Solve complex engineering problems and drive best practice across the organisation. Requirements 5+ years' experience as a Principal Software Engineer (or similar) in an enterprise environment. Proven track record leading across multiple engineering teams and specialties. Experience with Event-driven ...

global AI-native consultancy is seeking a Principal Software Engineer to lead engagement delivery in the Energy & Commodities Trading sector. This hands-on role combines technical excellence and domain expertise, focusing on architecting scalable AI solutions that drive trading decisions. The successful candidate will work closely with ...

Shape how safety-critical software is verified at the highest level. We're partnering with a growing, highly respected engineering SME specialising in safety-critical embedded systems. They are looking for a Principal Software Engineer to play a key role in developing and assuring high-integrity … embedded software, including a safety-certified real-time operating system. This is a hands-on software e... LFWQ1_UKTJ ...

Shape how safety-critical software is verified at the highest level. We're partnering with a growing, highly respected engineering SME specialising in safety-critical embedded systems . They are looking for a Principal Software Engineer to play a key role in developing and assuring high … integrity embedded software, including a safety-certified real-time operating system. This is a hands-on software e... CRWG1_UKTJ ...

DevOps Software Engineer (Senior - Principal) Location: Abingdon, Oxfordshire, UK We are looking for the right people — people who want to innovate, achieve, grow and lead. We attract and retain the best talent by investing in our employees and empowering them to develop themselves and their careers. Experience … world’s largest providers of products and services to the global energy industry. Job Duties We are actively seeking a Mid‐Level DevOps Engineer to join our Technical Solutions Team, which is responsible for implementing the delivery platform across the Neftex® subsurface evaluation product portfolio. This role is ideal ...

Intrum Justitia is searching for a Principal Software Development Engineer to shape the future of our customer-facing digital platforms. This role involves guiding technical direction, collaborating across teams, and has a flexible hybrid working model with required travel to Manchester, Reigate, or Glasgow. Ideal candidates will … possess extensive software engineering experience, strong knowledge of .NET, React, and microservices, with a focus on creating secure and scalable solutions. We offer a competitive salary, comprehensive benefits, and opportunities for personal development in a supportive environment. #J-18808-Ljbffr ...

Title : Principal Embedded Software Engineer Location : Bristol City Centre - 3 Days Per Week On-Site Salary - Up to £80,000 + Bonus & Benefits (Depending on Experience) Summary: This is a fantastic opportunity for an experienced engineer with a passion for leadership and a background in safety … critical embedded software to step into a high-impact role, driving both technical delivery and team performance. Responsibilities : Leading, mentoring, and managing a team of embedded software engineers in a collaborative and high-performing environment. Overseeing the full software development lifecycle – from requirements and design through ...

Title : Principal Embedded Software Engineer Location : Bristol City Centre - 3 Days Per Week On-Site Salary - Up to £80,000 + Bonus & Benefits (Depending on Experience) Summary: This is a fantastic opportunity for an experienced engineer with a passion for leadership and a background in safety … critical embedded software to step into a high-impact role, driving both technical delivery and team pe... CRWG1_UKTJ ...

world’s largest providers of products and services to the global energy industry. Job Duties We are actively seeking a Mid‐Level DevOps Engineer to join our Technical Solutions Team, which is responsible for implementing the delivery platform across the Neftex® subsurface evaluation product portfolio. This role is ideal … maintain automation scripts for infrastructure provisioning, configuration, and deployment. Create operational tooling and scripts to streamline monitoring, logging, backups, and incident response. Collaborate with software engineers to ensure integration between application code and infrastructure. Monitor system performance, availability, and reliability using appropriate tools and metrics. Troubleshoot and resolve infrastructure ...