opportunities for all. We benefit from diversity. That said, we're far from perfect - we want to be more diverse and representative. Join us and help make that happen. PrincipalSoftwareEngineer - £Excellent London PrincipalSoftwareEngineerPrincipalSoftwareEngineer The role We're looking for a PrincipalSoftwareEngineer to join our digital product delivery function. Red Badger delivers high quality digital products using a lean delivery process and multidisciplinary, cross-functional teams. The PrincipalSoftwareEngineer is a senior technical leader with deep expertise in building and operating digital products, particularly within complex client environments and multi-team projects. This role is … direction of client engagements and plays a key part in delivering high-quality outcomes through strategic influence, hands-on support, and deep domain knowledge. You will collaborate closely with Principal Product and Delivery roles, as well as Technical and Delivery Leads, to ensure that technology choices align with both client goals and Red Badger's value propositions. You will More ❯
PrincipalSoftwareEngineer/Architect (C# .Net AWS) Remote/Bristol to £100k Are you a highly technical PrincipalSoftwareEngineer with strong architecture and design skills? You could be progressing your career at a financial services tech consultancy that specialise in solutions for Pensions and Investment Managers. As a PrincipalSoftwareEngineer/Architect you will lead the design and development of scalable, robust and secure software solutions, playing a critical role in shaping the technical direction of products balancing architectural design patterns with pragmatic solution design and guiding engineering teams through implementation. You'll ensure secure coding and best practices are being followed and create appropriate technical … collaborative with great communication skills and experience of coaching and mentoring You're comfortable working as part of a leadership team What's in it for you: As a PrincipalSoftwareEngineer/Architect you will earn a competitive package: Salary to £100k 25 days holiday plus an extra day off for your birthday and additional three More ❯
Oxfordshire, Milton Hill, United Kingdom Hybrid / WFH Options
Mars Recruitment
PrincipalSoftwareEngineer | C++ | Python | Linux Oxfordshire | Hybrid £65,000pa plus benefits: Do you enjoy technically leading and mentoring a team of Software Engineers utilising C++ & Python on Linux, passing on your knowledge and experience to help nurture and develop future Engineers? If so, this PrincipalSoftwareEngineer role will be perfect for … you. Our client has seen rapid growth over the last few years, and to help develop their talented team of Software Engineers, they now seek a PrincipalSoftwareEngineer who can technically lead, mentor and develop during an exciting period of innovation. On a day-to-day basis you will develop and support software applications … drivers for a range of products. You will be technically responsible for ensuring projects meet internal and external customer requirements and completing concept designs through to production. The successful PrincipalSoftwareEngineer will need the following qualification, experience and skills: A degree in a Software Engineering, Mathematics or Science/Materials subject Experience in ARM based More ❯
Overview PrincipalSoftwareEngineer - Manchester Manchester, UnitedKingdom Posted about 2 months ago This is a job posted by our partner Jooble Below is a snippet of the job description. To read the full text, please click on the "Apply Now" link. Related Roles Staff-Level Full-Stack SoftwareEngineer; PrincipalSoftwareEngineer, Nifty Gateway; SoftwareEngineer, Nifty Gateway (Fullstack). Location 108 E 16th Street, New York, NY 10003 Qualifications You have recent experience building, deploying, and running cloud-native applications on top of AWS. More ❯
Step into a world where innovation meets impact. This exciting opportunity as a PrincipalSoftwareEngineer offers you the chance to be part of a forward-thinking company that is revolutionising defence technology. Contributing to cutting-edge solutions, you will play a pivotal role in delivering advanced systems that redefine security and trust on a global scale. … and the chance to work on meaningful projects that truly make a difference. What You Will Do: - Lead the architecture, design, development, documentation, and testing of embedded and application software for multiple concurrent research, development, and production programmes. - Apply object-oriented design techniques to enable code re-use and seamless integration with testing frameworks. - Review system design artefacts and … derive software requirements and architecture to meet high-level system needs. - Design and maintain software using modelling tools, ensuring accurate code generation where required. - Contribute to the Software Community of Practice, proposing improvements to tools, processes, and techniques to enhance efficiency and innovation. - Mentor and coach junior engineers, sharing knowledge and expertise to foster growth and development. More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Computer Futures
PrincipalSoftwareEngineer - Lead the Future of UK GovTech Innovation Up to £100,000 + Premium Benefits Package Remote-First | Just 1 Day Onsite Every 2 Weeks SC Clearable | British Citizens Only Where Technology Meets Purpose Are you ready to lead engineering efforts that directly impact national security, public services, and digital transformation across the UK? This … is more than just a job-it's a chance to build technology that matters , in a space where innovation meets mission-critical delivery. We're looking for a PrincipalSoftwareEngineer to join a high-performing team at the forefront of UK GovTech. You'll architect secure, scalable platforms, mentor elite engineers, and shape technical strategy … across programmes that serve millions of citizens and protect national interests. Your Mission As a PrincipalEngineer, you'll be a technical leader, strategic thinker, and hands-on problem solver. You'll work closely with delivery teams, stakeholders, and government partners to ensure solutions are robust, secure, and future-proof. What You'll Be Doing: Architect cloud-native More ❯
PrincipalSoftwareEngineer Location: London - 1x a month Salary: £95,000 - £120,000 + equity + benefits An established, global technology business within the hospitality-tech industry is seeking an accomplished PrincipalSoftwareEngineer to lead the design and delivery of next-generation digital solutions. This is an opportunity to shape greenfield projects from … reliability, and performance. Partner closely with engineering leadership to define best practices, coding standards, and long-term technical strategy. Design, develop, and oversee the delivery of robust, production-grade software built using Python, Django, Cloud Firestore, BigQuery, and Elasticsearch. Mentor and guide engineers at all levels, fostering a culture of technical excellence and continuous improvement. Collaborate with cross-functional … with business priorities to deliver scalable, maintainable solutions. What do I need to be successful? Degree in Computer Science or equivalent hands-on experience. 7+ years' experience in backend software development, including several years in a senior or principal-level engineering role. Expertise in Python (or a similar backend language), with proven experience designing distributed systems, APIs, and More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Computer Futures
PrincipalSoftwareEngineer - Shape the Future of UK GovTech Up to £95,000 + Premium Benefits Remote-First | Just 1 Day Onsite Every 2 Weeks SC Clearable | British Citizens Only Lead Innovation. Drive Transformation. Make an Impact. Ready to take the reins on projects that power national security and digital transformation This is your chance to lead … at the intersection of technology and purpose . As a PrincipalSoftwareEngineer , you'll architect cloud-native platforms , mentor elite engineering teams, and influence technical strategy across mission-critical government programmes . Your work won't just be code-it will shape the future of UK GovTech . Your Role in Action Architect secure, scalable, resilient More ❯
St. Albans, Hertfordshire, England, United Kingdom
Method Resourcing
PrincipalSoftwareEngineer£95,000 + Bonus + Benefits | Hybrid (UK) Method is partnering with a leading infrastructure technology company that's rebuilding its software architecture from the ground up. The mission is to create connected, secure, and scalable systems that enable smarter infrastructure, and deliver trusted connectivity across multiple sectors. They're looking for a … PrincipalSoftwareEngineer, a hands-on technical authority who will set engineering standards, solve complex challenges, and shape the next generation of event-driven microservices powering their global platform. The role You'll work at the top of the engineering track, designing and delivering high-performance, distributed systems while guiding others through implementation and problem-solving. This … and production reliability. What you'll bring Proven experience building and running distributed systems at scale. Deep fluency in modern programming languages and frameworks. Experience delivering secure, high-availability software into production. Strong understanding of architecture, design patterns, and microservice principles. Ability to balance hands-on coding with architectural oversight and mentorship. Curiosity to explore new tools, paradigms, and More ❯
St. Albans, Hertfordshire, South East, United Kingdom
Method-Resourcing
PrincipalSoftwareEngineer £95,000 + Bonus + Benefits | Hybrid (UK) Method is partnering with a leading infrastructure technology company that's rebuilding its software architecture from the ground up. The mission is to create connected, secure, and scalable systems that enable smarter infrastructure, and deliver trusted connectivity across multiple sectors. They're looking for a … PrincipalSoftwareEngineer, a hands-on technical authority who will set engineering standards, solve complex challenges, and shape the next generation of event-driven microservices powering their global platform. The role You'll work at the top of the engineering track, designing and delivering high-performance, distributed systems while guiding others through implementation and problem-solving. This … and production reliability. What you'll bring Proven experience building and running distributed systems at scale. Deep fluency in modern programming languages and frameworks. Experience delivering secure, high-availability software into production. Strong understanding of architecture, design patterns, and microservice principles. Ability to balance hands-on coding with architectural oversight and mentorship. Curiosity to explore new tools, paradigms, and More ❯
GL1 1DE, Gloucester, Gloucestershire, United Kingdom
Zenovo
Job Title: Lead/Principal Embedded SoftwareEngineer Location: Gloucester (On-Site Working) Salary: Up to £85,000 (Depending on Experience) Summary of Vacancy: We’re currently recruiting for a Principal Embedded SoftwareEngineer 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 PrincipalEngineer, 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 ❯
Bristol, Avon, South West, United Kingdom Hybrid / WFH Options
Platform Recruitment Limited
Bristol Principal Embedded SoftwareEngineer - £80k + great benefits! My client is a leading engineering firm, developing software and hardware for a range of regulated industries. They are looking for a Principal Embedded SoftwareEngineer to join their highly motivated team. This is a very interesting opportunity providing the right candidate the opportunity … Tech Stack/Skills required : -Embedded C -RTOS or MCU experience - Regulated industry experience - Team leadership experience you will be able to mentor and lead a team of embedded software engineers. The competitive salary is between £70-80k + great benefits! If youre interested please apply below More ❯
Our client, a leader in the defence and security sector, is seeking a PrincipalSoftwareEngineer to join their team in Berkshire. This is a permanent role where you will provide technical leadership within their Cyber Unit. Key Responsibilities: Architect, specify requirements, design, implement, and test embedded and/or application software to ensure high quality … and timely deliverables. Apply object-oriented design techniques for code re-use and integration with testing frameworks. Review system design artefacts to derive software requirements and architecture. Use modelling tools to design, document, review, and maintain the software design. Develop knowledge of best practice development processes and standards. Estimate time and effort for software activities and deliver … according to these estimates. Contribute to the Software Community of Practice to support quality and innovation. Generate and review technical proposals, and mentor less experienced engineers. Job Requirements: Willing and able to obtain and maintain SC and DV security clearance. Qualifications/Skills Required: Degree in engineering, mathematics or science-based subject, or equivalent experience. Significant experience in one More ❯
Our client, a leader in the defence and security sector, is seeking a PrincipalSoftwareEngineer to join their team in Berkshire. This is a permanent role where you will provide technical leadership within their Cyber Unit. Key Responsibilities: Architect, specify requirements, design, implement, and test embedded and/or application software to ensure high quality … and timely deliverables. Apply object-oriented design techniques for code re-use and integration with testing frameworks. Review system design artefacts to derive software requirements and architecture. Use modelling tools to design, document, review, and maintain the software design. Develop knowledge of best practice development processes and standards. Estimate time and effort for software activities and deliver … according to these estimates. Contribute to the Software Community of Practice to support quality and innovation. Generate and review technical proposals, and mentor less experienced engineers. Job Requirements: Willing and able to obtain and maintain SC and DV security clearance. Qualifications/Skills Required: Degree in engineering, mathematics or science-based subject, or equivalent experience. Significant experience in one More ❯
About The Role Deadline for applications: 11:59pm on 31st October 2025 Were looking for a PrincipalSoftwareEngineer to shape the technical direction of high-profile projects and lead the delivery of modern, scalable software. We use technology to create impactful, human-centred solutions that make a difference to users and organisations. We believe great engineering … provide hands-on technical leadership, working closely with senior stakeholders, mentoring engineers across multiple teams, and line managing a small group of engineers while helping shape our approach to software delivery, architecture, and engineering culture. Responsibilities Lead the design and development of advanced software solutions, ensuring high standards of quality, security and scalability. Set the technical direction for … function in strategic discussions, influencing our technology roadmap. Anticipate and manage project risks, helping teams navigate complex technical challenges. About You Professional knowledge and experience Essential Extensive experience in software engineering, with a focus on large-scale, complex systems. Polyglot engineer comfortable working across multiple languages and frameworks (weve used Python, Java, Kotlin, Node.js, C#, JavaScript, Express, React More ❯
Birmingham, West Midlands, United Kingdom Hybrid / WFH Options
TAE Power Solutions Engineering Ltd
Principal Control SoftwareEngineer Hybrid/Onsite to Birmingham About Us At TAE Power Solutions, we design power management systems that use less but do more. From, electric vehicle, drivetrains, ultrafast charging, stationary energy storage and grid efficiencies. We develop a clean energy ecosystem of proprietary technology designed to go faster, perform stronger, travel farther, and last … clean energy to the grid. Job Overview As a member of the Control Systems team, you will be working on the development of BMS, DCDC, OBC and Inverter application software for a range of demonstrator and production projects. You will be involved in all stages of the software development process, guide, and mentor other more junior engineers within … projects, and liaise directly with customers, suppliers, and other engineering teams within TAE Power Solutions (TPS). Key Aspects of the role Provide technical delivery and leadership of application software activities Support and mentor other more junior engineers within the team Creation and management of software requirements Take active part in the architectural design of the softwareMore ❯
Bicester, Oxfordshire, South East, United Kingdom Hybrid / WFH Options
Gerrell & Hard
Lead SoftwareEngineer IoT & Full-Stack Location: Hybrid/Bicester Type: Permanent Salary: Competitive, market-based TUAL Technology is an innovative, VC-backed start-up based in Bicester, developing PowerUp a high-power EV charging solution designed for grid-constrained sites. By integrating battery storage, smart energy management, and ultra-fast DC charging, TUAL delivers seamless electrification where … traditional grid capacity falls short. Working with enterprise customers across Europe, TUAL is transforming the productivity and profitability of electric commercial vehicle fleets through a portfolio of intelligent, software-defined, cloud and IoT-enabled charging solutions. The Role Were looking for a hands-on Lead SoftwareEngineer to own the design and delivery of our IoT and … cloud software platform. Youll connect our ultra-fast chargers, manage data and remote control functions, and ensure security and scalability across our systems. Youll work directly with the VP Product and VP Power Electronics, shaping architecture, integrations and performance turning ideas into real, working solutions. ________________________________________ What Youll Do Build IoT and cloud software for charger connectivity and monitoring More ❯
Overview Mesh-AI are seeking an exceptional PrincipalSoftwareEngineer to lead delivery of exciting engagements within our Energy & Commodities Trading sector. This role demands a unique combination of hands-on technical excellence and deep domain expertise in trading environments. You will architect and implement critical solutions that power real-time trading decisions, while mentoring teams and … trading operations across multiple asset classes Architect solutions which are able to integrate market data feeds, position management systems, market fundamentals, P&L Risk and Back Office solutions. Establish software engineering best practices and coding standards for trading applications, upskilling more junior members of our delivery teams Partner with client CTOs, Heads of Data, and Engineering Leads to align More ❯
on a mission to change lives through better sight and hearing, and our retail platforms are a core part of how we achieve this. We're looking for a PrincipalSoftwareEngineer to help shape the future of our digital experiences, both in-store and online. You'll lead from the front, defining the strategic technology vision … architecture, and delivery teams to bring it to life. This role involves integrating tools like CommerceTools, Algolia, and Contentful, mentoring senior engineers, and delivering scalable, secure, and high quality software that powers millions of customer interactions across our global business. Responsibilities Define and lead the engineering capability and technology direction for Specsavers' retail platforms. Collaborate with product, architecture, and More ❯
on a mission to change lives through better sight and hearing, and our retail platforms are a core part of how we achieve this. We're looking for a PrincipalSoftwareEngineer to help shape the future of our digital experiences, both in-store and online. You'll lead from the front, defining the strategic technology vision … architecture, and delivery teams to bring it to life. This role involves integrating tools like CommerceTools, Algolia, and Contentful, mentoring senior engineers, and delivering scalable, secure, and high quality software that powers millions of customer interactions across our global business. Responsibilities Define and lead the engineering capability and technology direction for Specsavers' retail platforms. Collaborate with product, architecture, and More ❯
on a mission to change lives through better sight and hearing, and our retail platforms are a core part of how we achieve this. We're looking for a PrincipalSoftwareEngineer to help shape the future of our digital experiences, both in-store and online. You'll lead from the front, defining the strategic technology vision … architecture, and delivery teams to bring it to life. This role involves integrating tools like CommerceTools, Algolia, and Contentful, mentoring senior engineers, and delivering scalable, secure, and high quality software that powers millions of customer interactions across our global business. Responsibilities Define and lead the engineering capability and technology direction for Specsavers' retail platforms. Collaborate with product, architecture, and More ❯
on a mission to change lives through better sight and hearing, and our retail platforms are a core part of how we achieve this. We're looking for a PrincipalSoftwareEngineer to help shape the future of our digital experiences, both in-store and online. You'll lead from the front, defining the strategic technology vision … architecture, and delivery teams to bring it to life. This role involves integrating tools like CommerceTools, Algolia, and Contentful, mentoring senior engineers, and delivering scalable, secure, and high quality software that powers millions of customer interactions across our global business. Responsibilities Define and lead the engineering capability and technology direction for Specsavers' retail platforms. Collaborate with product, architecture, and More ❯
Principal Control SoftwareEngineer Hybrid/Onsite to Birmingham About Us At TAE Power Solutions, we design power management systems that use less but do more. From, electric vehicle, drivetrains, ultrafast charging, stationary energy storage and grid efficiencies. We develop a clean energy ecosystem of proprietary technology designed to go faster, perform stronger, travel farther, and last More ❯
Bristol City Centre - BS1, Bristol, United Kingdom
Zenovo
Job Title : Principal Embedded SoftwareEngineer 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 ❯
Employment Type: Permanent
Salary: £65000 - £72000/annum Up to £72,000 (Depending on Experie
Job Title : Principal Embedded SoftwareEngineer 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 ❯
