8 of 8 Principal Software Engineer Jobs in the South West

Principal Software Engineer - Lead Innovation in Government Tech Up to £95,000 + Exceptional Benefits Remote First (1 Day/Fortnight Onsite) SC Clearable - British Citizens Only Are you ready to shape the future of government technology? Join a cutting-edge software engineering business as a Principal Software Engineer, where you'll lead More ❯

Our client, a mission-led consultancy , is looking for an experienced Principal Software Engineer (Python or Java) to join their growing team. They deliver secure, modern software solutions to the UK Government and Defence sectors, enabling clients to build scalable systems and progressive web applications that drive real impact. This is a senior-level opportunity for … a hands-on engineer who enjoys leading by example , thrives in agile environments , and is passionate about shaping engineering best practice while still contributing to the codebase. Key Responsibilities Lead the design, development, and testing of secure, scalable systems using Python or Java with modern front-end frameworks (e.g., React) Architect and maintain APIs, data pipelines, and cloud-native … mentor engineers, promoting best practice, clean coding, and agile delivery Collaborate with stakeholders and clients to shape technical direction and ensure robust, user-focused solutions Contribute across the full software development lifecycle , from discovery to production support Essential Skills & Experience Deep expertise in Python or Java , with strong full-stack engineering skills Proven experience leading teams or projects at More ❯

Principal Software Engineer Security Cleared (High Level of UK Government Security Clearance Required) Salary: up to £100k + Benefits Copello Global is supporting a confidential client within the defence/technology sector in their search for an experienced Software Engineer to join them in Cheltenham. This is an exciting opportunity to work with a global … leader on highly impactful mission-critical programmes. The Role Design, build, and maintain secure, scalable software Write, review code, and support CI/CD pipelines Break down complex features and manage them within Agile workflows Deliver technical demos to internal and external stakeholders Skills Required Proficiency in Java, Python, or JavaScript Experience with AWS or Azure Familiarity with Jenkins More ❯

Principal Software Engineer Security Cleared (High Level of UK Government Security Clearance Required) Salary: up to £100k + Benefits Copello Global is supporting a confidential client within the defence/technology sector in their search for an experienced Software Engineer to join them in Cheltenham click apply for full job details More ❯

Job Title: Lead/Principal Embedded Software Engineer Location: Gloucester (On-Site Working) Salary: Up to £80,000 (Depending on Experience) Summary of Vacancy: We're currently recruiting for a Principal Embedded Software Engineer on behalf of a cutting-edge Security Research & Development organisation. This organisation is focused on low-level, security-related development … embedded systems, and is building novel and secure solutions that push technical boundaries. You'll be working in a deeply technical, collaborative environment that prioritises engineering excellence. As a Principal Engineer, you'll lead development efforts for secure embedded systems, working hands-on with code while also guiding and mentoring others. You'll collaborate with researchers to prototype … new capabilities and deliver high-integrity software across a wide range of platforms. Key Responsibilities: Develop robust, efficient embedded software with a focus on security and performance. Work across the full stack—from low-level hardware interaction up to application logic—depending on project needs. Use your deep understanding of systems to write clean, reliable code that meets More ❯

Job Title : Principal Embedded Software Engineer Location : Bristol City Centre - 3 Days Per Week On-Site Salary - Up to £72,000 + 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 to implementation, testing, and maintenance. Collaborating with cross-functional teams, including project management and QA, to ensure seamless and timely … and resolving technical challenges while managing risk and maintaining timelines. Driving continuous improvement, fostering innovation, and supporting professional growth within your team. Required Skills & Experience: Proven experience in embedded software development within a safety-critical environment. Solid understanding of embedded systems and RTOS Strong programming skills in C and assembler. Demonstrated leadership experience with the ability to mentor, motivate More ❯

Job Title : Principal Embedded Software Engineer Location : Bristol City Centre - 3 Days Per Week On-Site Salary - Up to £72,000 + 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 to implementation, testing, and maintenance. Collaborating with cross-functional teams, including project management and QA, to ensure seamless and timely … and resolving technical challenges while managing risk and maintaining timelines. Driving continuous improvement, fostering innovation, and supporting professional growth within your team. Required Skills & Experience: Proven experience in embedded software development within a safety-critical environment. Solid understanding of embedded systems and RTOS Strong programming skills in C and assembler. Demonstrated leadership experience with the ability to mentor, motivate More ❯

Job Title : Principal Embedded Software Engineer Location : Bristol City Centre - 3 Days Per Week On-Site Salary - Up to £72,000 + 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 to implementation, testing, and maintenance. Collaborating with cross-functional teams, including project management and QA, to ensure seamless and timely … and resolving technical challenges while managing risk and maintaining timelines. Driving continuous improvement, fostering innovation, and supporting professional growth within your team. Required Skills & Experience: Proven experience in embedded software development within a safety-critical environment. Solid understanding of embedded systems and RTOS Strong programming skills in C and assembler. Demonstrated leadership experience with the ability to mentor, motivate More ❯