25 of 25 Remote Principal Software Engineer Jobs in the UK excluding London

We’re Hiring: Principal Software Engineer – Satellite Systems Location: Surrey-based (Hybrid) Sector: Satellite Communications | Embedded Systems | Space-tech GTS Space is partnering with a leading company in the space-tech sector, which is on the lookout for a Principal Embedded Software Engineer Our … successful space missions across the solar system, with clients like NASA and ESA. With teams on three continents, they’re looking for a Principal Software Engineer to join them in their Surrey office. This is a rare chance to work on mission-critical software for cutting … edge satellite communications and onboard processing systems. 💡 Your Mission: As Principal Software Engineer, you'll: Lead the design and optimization of software for advanced satellite communication systems Define architecture and drive the development of embedded, real-time solutions Collaborate closely with systems engineers to integrate hardware More ❯

Join us to co-create solutions for a better future! Job Details Software Engineer Principal Software Engineer Plymouth, MN Posted: 4/1/2025 Job ID#: 60084 Job Category: Software Engineer Position Type: Contract Duration: Long Term Stefanini Group is hiring! Stefanini … is looking for Principal Software Engineer for Plymouth, MN location (Hybrid work). For quick Apply, please reach out to Vipul Bhardwaj- call: -8630/email: Open for W2 candidates only! Join as a Principal Software Engineer - Embedded Systems and make a real difference … boundaries of what's possible. As a key member of our R&D team, you'll be responsible for developing and maintaining the embedded software architecture and design for our lifesaving CRRT devices. You'll work collaboratively with cross-functional teams to create the best solutions possible, and mentor More ❯

Sr Principal Software Engineer page is loaded Sr Principal Software Engineer Apply locations: CAMBRIDGE Time type: Full time Posted on: Posted Yesterday Job requisition id: R49763 At Cadence, we hire and develop leaders and innovators who want to make an impact on the world … of technology. Cadence is a pivotal leader in electronic design, building upon more than 30 years of computational software expertise. The company applies its underlying Intelligent System Design strategy to deliver software, hardware and IP that turn design concepts into reality. Cadence customers are the world's most … to boards to systems for the most dynamic market applications including consumer, hyperscale computing, 5G communications, automotive, aerospace industrial and health. Job Title: Sr Principal Software Engineer Location: Cambridge, United Kingdom OR Cork, Ireland Reports to: Software Engineering Group Director Job Overview: We are seeking a More ❯

Principal Software Engineer Note: The business are hiring for Senior-Principal Engineers Principal Engineer TypeScript, React, NextJS, NestJS, Python At Wave Talent, we don't want to consume any more of your time trying to decipher job descriptions to identify the information you need. … We’ve partnered with a high-growth AI technology company who are pushing the boundaries in industrial tech, and we’re hiring Senior to Principal Engineers to join their mission-critical platform team. This role is on-site 5 days a week and whilst this may change in the … driving technical excellence across the team. We'd love to chat with you about this position if: ✅ You’ve got extensive experience as a Principal Engineer, Staff Engineer, or in a senior full-stack engineering role, ideally within fast-paced, high-growth tech environments. ✅ You’re highly More ❯

Principal Software Development Engineer (C++) St. Neots, Cambridge, UK Software Engineering Full Time - Permanent Key information Full time - 40 hours a week St Neots, Cambridgeshire - hybrid working optional (2-3 days a week in the office) Your role As a Principal Software Development Engineer, you will work within a multi-disciplinary team, embracing agile methodologies while mentoring Engineers. You'll create high-quality software solutions that meet the needs of our internal and external customers, always delivered on time and to an exceptional standard. This role allows you to dive into resolving … the opportunity to lead key projects, contribute to feature design, and help shape the architectural direction of our products. Main Areas of Responsibility: The Principal Software Development Engineer will work to design and refine required features, proposing alternative solutions to improve both customer and developer experience. They More ❯

Principal Software Development Engineer (C++) St. Neots, Cambridge, UK Software Engineering Full Time - Permanent Key information Full time - 40 hours a week St Neots, Cambridgeshire - hybrid working optional (2-3 days a week in the office) Your role As a Principal Software Development Engineer, you will work within a multi-disciplinary team, embracing agile methodologies while mentoring Engineers. You'll create high-quality software solutions that meet the needs of our internal and external customers, always delivered on time and to an exceptional standard. This role allows you to dive into resolving … the opportunity to lead key projects, contribute to feature design, and help shape the architectural direction of our products. Main Areas of Responsibility: The Principal Software Development Engineer will work to design and refine required features, proposing alternative solutions to improve both customer and developer experience. They More ❯

Role: Principal Software Engineer Location: Nottingham Working Arrangement: Hybrid, 3 days/week in office with flexibility around working hours Salary: Up to £90k Tech for Good Renewable Energy Are you ready to shape the future of a growing tech company in the renewable energy sector? With … a pivotal moment to join. Theyre embarking on an ambitious journey to enhance their product suite and launch cutting-edge greenfield projects. As a Principal Software Engineer, youll join the flagship product team with the core mission of making wind energy work for the world! Were looking … a high-impact engineer who can lead architectural design for new features and drive engineering standards across the department. Youll have the autonomy to influence technical direction while collaborating with some of the best engineers in the industry. Tech Stack: C#, .NET 9 React - open to Typescript & other SPA More ❯

Senior/Principal Software Engineer - Kotlin £90,000-£150,000 basic salary Project at Tier One Investment Bank London - Hybrid working - flexible Are you a Senior/Principal Engineer with commercial Kotlin experience who is ready to make an impact in one of the world … s leading financial institutions in the new year? We’re searching for a Senior/Principal Kotlin focused Engineer to join a critical project at a Tier 1 Investment Bank, working on mission-critical systems that power global investment strategies. This is a greenfield project where you'll … have a lot of autonomy and influence. Working for a developer-led software consultancy passionate about software craftsmanship and developer experience enables you to focus on the tech and not get bogged down in the politics. What you’ll do: Develop and maintain highly reliable backend systems using More ❯

We are a technology-driven company building high-performing, scalable, and resilient software solutions. Our teams work with a modern tech stack including .NET, MongoDB, AWS, Jenkins, SQL Server, and streaming technologies. We're looking for a hands-on Principal Engineer who can code, design scalable systems … This role is perfect for a technical leader who still enjoys writing code while shaping architecture and mentoring engineers. About the role As a Principal Engineer, you will play a critical role in: Architecting scalable, high-performance systems Coding and reviewing mission-critical features (at least 60% hands … on) Managing and mentoring Staff Engineers & Senior Developers Driving best practices in software development and AI-powered engineering Owning non-functional requirements (NFRs) such as security, scalability, and reliability Optimising cloud infrastructure and CI/CD pipelines If you thrive on solving complex technical challenges, leading by example, and More ❯

We are a technology-driven company building high-performing, scalable, and resilient software solutions. Our teams work with a modern tech stack including .NET, MongoDB, AWS, Jenkins, SQL Server, and streaming technologies. We're looking for a hands-on Principal Engineer who can code, design scalable systems … This role is perfect for a technical leader who still enjoys writing code while shaping architecture and mentoring engineers. About the role As a Principal Engineer, you will play a critical role in: Architecting scalable, high-performance systems Coding and reviewing mission-critical features (at least 60% hands … on) Managing and mentoring Staff Engineers & Senior Developers Driving best practices in software development and AI-powered engineering Owning non-functional requirements (NFRs) such as security, scalability, and reliability Optimising cloud infrastructure and CI/CD pipelines If you thrive on solving complex technical challenges, leading by example, and More ❯

often at the leading edge of technology. Our clients choose Instil because we are seen as a cut above. We are looking for a Principal Software Engineer to join our growing business and play a pivotal role in leading the development of next-generation products that shift … the dial for our global customers. As a Principal Engineer, you will care about your craft and the success of our customers and their users. Most of your time will be spent writing code and leading teams to deliver business-critical outcomes successfully. You will also be a … to a team culture that values quality, robustness, and knowledge sharing. Need to have: A minimum of 8 years post-graduate experience in the software industry. Expertise in Java, Kotlin, Typescript, or C#. Expertise in React or Angular. Experience developing cloud-native solutions and modern frontend applications. Experience developing More ❯

Full time – 40 hours a week St Neots, Cambridgeshire – hybrid working optional (2-3 days a week in the office) Your role As a Principal Software Development Engineer, you will work within a multi-disciplinary team, embracing agile methodologies while mentoring Engineers. You’ll create high-quality … software solutions that meet the needs of our internal and external customers, always delivered on time and to an exceptional standard. This role allows you to dive into resolving technical challenges, addressing technical debt, and continually improving your skills with dedicated “blue sky” time for professional development. You’ll … feature design, and help shape the architectural direction of our products. Join us and be part of something exciting! Main Areas of Responsibility: The Principal Software Development Engineer will work to design and refine required features, proposing alternative solutions to improve both customer and developer experience. They More ❯

Full time – 40 hours a week St Neots, Cambridgeshire – hybrid working optional (2-3 days a week in the office) Your role As a Principal Software Development Engineer, you will work within a multi-disciplinary team, embracing agile methodologies while mentoring Engineers. You’ll create high-quality … software solutions that meet the needs of our internal and external customers, always delivered on time and to an exceptional standard. This role allows you to dive into resolving technical challenges, addressing technical debt, and continually improving your skills with dedicated “blue sky” time for professional development. You’ll … feature design, and help shape the architectural direction of our products. Join us and be part of something exciting! Main Areas of Responsibility: The Principal Software Development Engineer will work to design and refine required features, proposing alternative solutions to improve both customer and developer experience. They More ❯

Full time – 40 hours a week St Neots, Cambridgeshire – hybrid working optional (2-3 days a week in the office) Your role As a Principal Software Development Engineer, you will work within a multi-disciplinary team, embracing agile methodologies while mentoring Engineers. You’ll create high-quality … software solutions that meet the needs of our internal and external customers, always delivered on time and to an exceptional standard. This role allows you to dive into resolving technical challenges, addressing technical debt, and continually improving your skills with dedicated “blue sky” time for professional development. You’ll … feature design, and help shape the architectural direction of our products. Join us and be part of something exciting! Main Areas of Responsibility: The Principal Software Development Engineer will work to design and refine required features, proposing alternative solutions to improve both customer and developer experience. They More ❯

Join the Growth Story at Envitia Join Envitia, a leader in the UK's digital and software services landscape, where your work in cutting-edge technology empowers our customers to manage, share, and exploit data more effectively: Influence significant digital and data transformation projects within the UK public sector. … to make a real impact, grow with a supportive team, and help shape the future of data solutions in trusted sectors. The Role The Principal Java Engineer has a critical role within the Engineering function, tasked with setting technical standards and influencing the architectural decisions that shape the … company's software solutions. This position is suited for a seasoned expert who not only technically leads projects within their domain of expertise but also supports business development efforts through pre-sales engagements. The Principal Engineer will guide the technology strategy, collaborate with cross-functional teams and More ❯

C# Software Engineer (Senior/Principal) The Opportunity Are you a Software Engineer with C# experience looking for your next challenge? Here at Leonardo, we are on the hunt for talented software engineers to support our Integrated Sensors & Protection line of business, working on … a range of defence projects. Direct industry experience is not required, we are happy to explore all backgrounds and help develop all our software engineers. What you will do: We want to develop a new generation of features and capabilities using innovative software solutions and we need you … to create them. You will be a key part in a community of world-class software engineers who will continuously improve, collaborate and innovate with other engineers to create market-leading products within the defence industry. What we are looking for: Essential C# software development Machine-to-machine More ❯

Role: Principal Software Engineer Location: Nottingham Working Arrangement: Hybrid, 3 days/week in office with flexibility around working hours Salary: Up to £90k Tech for Good Renewable Energy Are you ready to shape the future of a growing tech company in the renewable energy sector? With More ❯

C# Software Engineer (Senior/Principal) Apply Locations: GB - Basildon Time Type: Full time Posted on: Posted Yesterday Job Requisition ID: R Job Description: The Opportunity Are you a Software Engineer with C# experience looking for your next challenge? Here at Leonardo, we are on … the hunt for talented software engineers to support our Integrated Sensors & Protection line of business, working on a range of defence projects. Direct industry experience is not required; we are happy to explore all backgrounds and help develop all our software engineers. What you will do: You will … be a key part in a community of world-class software engineers who will continuously improve, collaborate and innovate with other engineers to create market-leading products within the defence industry. What we are looking for: Essential: C# software development Machine-to-machine networking, working to third-party More ❯

Job Description: C# Software Engineer (Senior/Principal) The Opportunity Are you a Software Engineer with C# experience looking for your next challenge? Here at Leonardo, we are on the hunt for talented software engineers to support our Integrated Sensors & Protection line of business … working on a range of defence projects. Direct industry experience is not required; we are happy to explore all backgrounds and help develop our software engineers. What you will do: We want to develop a new generation of features and capabilities using innovative software solutions. You will be … a key part of a community of world-class software engineers who will continuously improve, collaborate, and innovate to create market-leading products within the defence industry. What we are looking for: Essential C# software development Machine-to-machine networking, working to third-party interface definitions Test frameworks More ❯

Global Technology company that specialise in ensuring Software Security are looking for a Principal Software Engineer (C++) to join their Glasgow base. You'll have the opportunity to wok on a series of world-class products and gain experience with some really interesting development led security … practices. Their software ensures security with data, communications, payments and protects content. The company have been operating successfully in Glasgow for over 20 years now, and they are well respected in the tech community. They have a global client base and build trusted securities software for billions of … of C/C++ ** Deep understanding of Design processes and Architectural patterns ** Low-level programming ** Knowledge of mobile development The following is highly desirable; ** Software Security experience (Cybersecurity certifications would really help set you apart here) ** Experience in mentoring Junior members of the team Their office is based in More ❯

Equity options: 0.25% - 0.5% Hybrid working policy: Minimum three days a week in our Holborn office Experience level: At least seven years in commercial software engineering If you're looking to join an exceptional, fast-paced, and growing team building innovative products in FinTech, check out the full job … product that may not be suitable for every investor. The role As we approach the launch of our product, we are looking for a Principal Software Engineer to strengthen our engineering team. You will have extensive commercial experience designing, building and maintaining systems used in critical services … Ensure best practice through example and continual team feedback Root causing real-time production issues in a timely manner Taking a pragmatic approach to software development Your background Extensive experience in software engineering, with a focus on designing, building, and maintaining large-scale systems Proven track record of More ❯

Job Description: Are you a Real Time Embedded Software Engineer ready to take the next step on your career journey? If you are looking at opportunities for progression, to learn and grow within a supportive environment, Leonardo has multiple roles available. Do you want to deliver solutions within … value job security and flexible working with great benefits and an emphasis on work life balance? Then you should apply for one of our PRINCIPAL SOFTWARE ENGINEER roles as we are looking for engineers to join our team working on a variety of exciting projects. Below is … code (e.g., RTCA-DO178C) using object-oriented C++ Hands-on integration working within a lab environment on target hardware Implementation of real-time embedded software applications built upon Linux or VxWorks RTOS (Desirable) An understanding of the Software Engineering lifecycle from requirements elicitation to delivery and release. The More ❯

We are seeking a highly skilled and experienced Principal Software Engineer to join our team full time. This is a hands-on role where you will be deeply involved in the development of drone related backend systems, contributing across the entire stack. You will also have the … for building a data lake/warehouse and the foundation of business intelligence. Support the creation of a Network Operating Center (NOC) on the software & system side and other strategic initiatives such as design and development of digital twin infrastructure. Own the definition of done, performance, security, and usability. … and guide external consultants and freelancers to deliver high-quality results. Requirements Required Qualifications and Skills At minimum 10 years of work experience in software development roles Strong programming skills in Go, React and JavaScript Great understanding of PostgreSQL, MongoDB and data streaming pipelines Proven experience designing and implementing More ❯

Position: Lead Software Engineer Location: Manchester (Hybrid – 2 days per week in office) Salary Range: £85,000 – £140,000 Our client is shaping the next chapter of digital banking with one of the biggest and most innovative banking software projects in Europe. We’re looking for innovative … minds to help lead the way. If you're a hands-on Java engineer with a passion for scalable architecture and modern cloud-native development, this is your chance to work on something big. You’ll take a key role in a strategic engineering team that’s focused on … support innovative financial products. What You’ll Do Lead engineering efforts on backend services in Java, built for cloud deployment and aligned with modern software architecture principles. Design and maintain integration layers and orchestration services that connect Vault with various internal banking systems. Establish coding standards, enforce clean code More ❯

Principal SDET (Software Development Engineer in Test) Location: Belfast (Hybrid) Are you a senior test automation expert ready to shape the future of quality engineering at a global scale? Join our client’s fast-growing engineering hub in Belfast , where innovation meets impact. Our client is seeking … a Principal SDET to lead the design, development, and implementation of world-class test automation frameworks and strategies. You will act as a technical authority, collaborating with cross-functional teams and leading an offshore SDET team , driving quality across a modern, cloud-based stack. What You’ll Do: Architect … engineering principles and advocate for testability, CI/CD, and observability in our platform. What You’ll Bring: Extensive experience as a senior or principal-level SDET, QA architect, or similar role. Deep expertise in test automation frameworks (preferably Playwright ) and programming in Java and Python . Strong background More ❯