1 to 25 of 34 Remote Principal Software Engineer Jobs in the UK

Principal Engineer/Staff Engineer - Principal Software Engineer (Full Stack Engineer) £180k + Share/Equity Scheme (EMI) We are looking for a Principal Software Engineer/Staff Software Engineer to join a FinTech company at the Scale … Up phase of their journey. (£200m+ Investment Series Funding) They're looking for an engineer that has experience working across several tech stacks including TypeScript, Java, Node, React, AWS, Python, Go. You do not need experience in all of these but must be able to showcase ability to lead … are best fit for purpose. 💷 £150k-£180k basic 🏡 Hybrid Working 🚀 Share/Equity Scheme (EMI) 🏝️ 25 days + 8 PH 💰 Bonus Scheme As a Principal Engineer/Staff Engineer you will work closely with the CTO and lead a team of Software Engineers & Full Stack Developers More ❯

Principal Engineer/Staff Engineer - Principal Software Engineer (Full Stack Engineer) £180k + Share/Equity Scheme (EMI) We are looking for a Principal Software Engineer/Staff Software Engineer to join a FinTech company at the Scale … Up phase of their journey. (£200m+ Investment Series Funding) They're looking for an engineer that has experience working across several tech stacks including TypeScript, Java, Node, React, AWS, Python, Go. You do not need experience in all of these but must be able to showcase ability to lead … are best fit for purpose. 💷 £150k-£180k basic 🏡 Hybrid Working 🚀 Share/Equity Scheme (EMI) 🏝️ 25 days + 8 PH 💰 Bonus Scheme As a Principal Engineer/Staff Engineer you will work closely with the CTO and lead a team of Software Engineers & Full Stack Developers More ❯

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 Backend Software Engineer/Developer (C# .Net Core Azure) Reigate/WFH to £95k Are you a backend focussed .Net technologist looking for an opportunity to work on cutting edge SaaS technology? You could be progressing your career in a senior hands-on role at a … global InsurTech. As a Principal Backend Software Engineer you will take a lead role in the team responsible for their flagship SaaS insurance platform that handles 4 billion requests per month. The work is challenging and complex, you'll focus on delivering the evolution of backend services … of leading technical projects and promoting best practices You have excellent written and verbal communication skills What's in it for you: As a Principal Backend Software Engineer/Developer you will earn a competitive salary package including: Salary to £95k Bonus (c20%) 25 days holiday (and 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 ❯

Principal Software Engineer Location : Glasgow (Hybrid, 2 days in-office per week) Salary : £70,000 - £82,000 + 10% Corporate Bonus We are seeking a versatile and skilled professional Principal Software Engineer to join our clients' team in Glasgow, focusing on cybersecurity and mobile … application security. Responsibilities: Design, develop, and optimise software for multiple product areas. Conduct reverse engineering and debugging to assess vulnerabilities. Implement robust security measures such as encryption and code hardening. Mentor junior engineers and contribute to the technical roadmap. Collaborate with architects and other teams to deliver scalable solutions. 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 ❯

Title : Principal Software Engineer Company : HPC R&D Location : London (Hybrid) Pay : Up to £150,000 Company : An advanced HPC R&D firm, looking to expand the UK compiler team. Most of the team are ex-Big-Tech, ex-FAANG or ex-Chip firms. They joined because … technical leadership. If you want to work alongside some of the brightest, most enthusiastic people in the industry, this may be worth exploring. Role : Principal Software Engineer position with an emphasis on GPU compiler development in the context of AI. You will be working with Triton, but … edge compiler development project. Significant hires have already been made in the team to support this role. About you: 6 years+ as a compiler engineer Strong C++ programming skills Experience with Triton, LLVM, MLIR or other compilers Experience with GPU architectures Full details are available. Please don't hesitate 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 ❯

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: Hybrid in London Salary: £90,000 - £110,000 You will support in accelerating a new digital platform capability, transforming and modernising our digital estate to build a market-leading digital offering with customer experience at its heart. This is an exciting and 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 ❯