Surrey, England, United Kingdom Hybrid / WFH Options
GTS Group Ltd
We’re Hiring: PrincipalSoftwareEngineer – 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 SoftwareEngineer Our … successful space missions across the solar system, with clients like NASA and ESA. With teams on three continents, they’re looking for a PrincipalSoftwareEngineer 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 PrincipalSoftwareEngineer, 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 ❯
Plymouth, Devon, United Kingdom Hybrid / WFH Options
Stefanini, Inc
Join us to co-create solutions for a better future! Job Details SoftwareEngineerPrincipalSoftwareEngineer Plymouth, MN Posted: 4/1/2025 Job ID#: 60084 Job Category: SoftwareEngineer Position Type: Contract Duration: Long Term Stefanini Group is hiring! Stefanini … is looking for PrincipalSoftwareEngineer 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 PrincipalSoftwareEngineer - 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 ❯
Cambridge, Cambridgeshire, United Kingdom Hybrid / WFH Options
Cadence Design Systems
Sr PrincipalSoftwareEngineer page is loaded Sr PrincipalSoftwareEngineer 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 PrincipalSoftwareEngineer Location: Cambridge, United Kingdom OR Cork, Ireland Reports to: Software Engineering Group Director Job Overview: We are seeking a More ❯
Reigate, England, United Kingdom Hybrid / WFH Options
Client Server
Principal Backend SoftwareEngineer/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 SoftwareEngineer 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 SoftwareEngineer/Developer you will earn a competitive salary package including: Salary to £95k Bonus (c20%) 25 days holiday (and More ❯
St. Neots, Cambridgeshire, United Kingdom Hybrid / WFH Options
Pico Technology Limited
PrincipalSoftware 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 PrincipalSoftware 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 PrincipalSoftware Development Engineer will work to design and refine required features, proposing alternative solutions to improve both customer and developer experience. They More ❯
Cambridge, Cambridgeshire, United Kingdom Hybrid / WFH Options
Pico Technology Limited
PrincipalSoftware 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 PrincipalSoftware 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 PrincipalSoftware Development Engineer will work to design and refine required features, proposing alternative solutions to improve both customer and developer experience. They More ❯
Nottingham, Nottinghamshire, East Midlands, United Kingdom Hybrid / WFH Options
Rebel Recruitment
Role: PrincipalSoftwareEngineer 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 PrincipalSoftwareEngineer, 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 : PrincipalSoftwareEngineer 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 : PrincipalSoftwareEngineer 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 ❯
Senior/PrincipalSoftwareEngineer - Kotlin £90,000-£150,000 basic salary Project at Tier One Investment Bank London - Hybrid working - flexible Are you a Senior/PrincipalEngineer 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 ❯
london, south east england, united kingdom Hybrid / WFH Options
Source Technology
Senior/PrincipalSoftwareEngineer - Kotlin £90,000-£150,000 basic salary Project at Tier One Investment Bank London - Hybrid working - flexible Are you a Senior/PrincipalEngineer 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 PrincipalEngineer 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 PrincipalEngineer, 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 ❯
Manchester, Lancashire, United Kingdom Hybrid / WFH Options
Manchester Digital
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 PrincipalEngineer 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 PrincipalEngineer, 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 ❯
Bristol, Gloucestershire, United Kingdom Hybrid / WFH Options
Manchester Digital
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 PrincipalEngineer 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 PrincipalEngineer, 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 ❯
St Neots, England, United Kingdom Hybrid / WFH Options
Pico Technology
Full time – 40 hours a week St Neots, Cambridgeshire – hybrid working optional (2-3 days a week in the office) Your role As a PrincipalSoftware 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 PrincipalSoftware Development Engineer will work to design and refine required features, proposing alternative solutions to improve both customer and developer experience. They More ❯
st neots, east anglia, United Kingdom Hybrid / WFH Options
Pico Technology
Full time – 40 hours a week St Neots, Cambridgeshire – hybrid working optional (2-3 days a week in the office) Your role As a PrincipalSoftware 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 PrincipalSoftware Development Engineer will work to design and refine required features, proposing alternative solutions to improve both customer and developer experience. They More ❯
saint neots, east anglia, United Kingdom Hybrid / WFH Options
Pico Technology
Full time – 40 hours a week St Neots, Cambridgeshire – hybrid working optional (2-3 days a week in the office) Your role As a PrincipalSoftware 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 PrincipalSoftware Development Engineer will work to design and refine required features, proposing alternative solutions to improve both customer and developer experience. They More ❯
Horsham, Sussex, United Kingdom Hybrid / WFH Options
Envitia Group
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 PrincipalEngineer will guide the technology strategy, collaborate with cross-functional teams and More ❯
Basildon, Essex, United Kingdom Hybrid / WFH Options
慨正橡扯
C# SoftwareEngineer (Senior/Principal) The Opportunity Are you a SoftwareEngineer 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: PrincipalSoftwareEngineer 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 ❯
Basildon, Essex, United Kingdom Hybrid / WFH Options
leonardo company
C# SoftwareEngineer (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 SoftwareEngineer 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 ❯
Basildon, Essex, United Kingdom Hybrid / WFH Options
Leonardo UK Ltd
Job Description: C# SoftwareEngineer (Senior/Principal) The Opportunity Are you a SoftwareEngineer 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 ❯
We are seeking a PrincipalSoftwareEngineer with deep expertise in Java and hands-on experience in leading the migration of legacy monolithic Java applications to the AWS cloud using Kubernetes (K8s). The ideal candidate will be responsible for driving technical decisions, mentoring engineers, and leading … the team in modernizing our application architecture. You will work on the full software development lifecycle, from design and development to deployment and support, ensuring seamless migration while maintaining high performance and scalability. Key Responsibilities: Evaluate existing architectural systems and propose an architecture roadmap to improve performance, scalability, and … of innovation. Analyze production incidents to find the most efficient way to address current architecture issues. Required Skills and Qualifications: 7+ years in development & software engineering with Java, Spring, Hibernate . Proven experience as a Software Architect with a strong portfolio of successful cloud migrations. Proficient understanding of More ❯
London, England, United Kingdom Hybrid / WFH Options
Investa
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 PrincipalSoftwareEngineer 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 ❯
london, south east england, United Kingdom Hybrid / WFH Options
Investa
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 PrincipalSoftwareEngineer 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 ❯
Luton, Bedfordshire, United Kingdom Hybrid / WFH Options
leonardo company
Job Description: Are you a Real Time Embedded SoftwareEngineer 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 PRINCIPALSOFTWAREENGINEER 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 ❯