26 to 50 of 55 Permanent Principal Software Engineer Jobs in the UK

We're looking for an experienced Principal Software Engineer to lead and manage a team of engineers, overseeing the design, development, and implementation of complex engineering projects. You will be supported by an experienced Head of Product as well as a Director of Engineering to ensure we are building the right experiences to delight our customers with … the right tech choices. You will be responsible for overseeing the entire software development lifecycle, from project initiation to delivery, and ensuring that our software solutions are robust, scalable, and meet the highest quality standards. We have big plans as a business and technology will be at the heart of it. If you are passionate about technology, possess … Provide technical guidance, mentorship, and support to a team of developers. Set coding standards and best practices, and ensure adherence to them. Project Management: Lead and manage the full software development lifecycle, including project planning, task assignment, and coordination among team members. Coding and Development: Write clean, efficient, and well-documented code. Participate in hands-on development as needed More ❯

the engineering of Disney Entertainment & ESPN digital and streaming products and platforms. This includes product engineering, media engineering, quality assurance, engineering behind personalization, commerce, lifecycle, and identity. As a Principal Software Engineer, you will be part of a diverse and talented organization focused on building and maintaining complex sports platform services and applications for ESPN. You will … Document architectural platform frameworks for shared solutions across teams. Lead code and architectural reviews. Conduct competitive backend industry research. Basic Qualifications Bachelor's degree in Computer Science, Information Systems, Software, Electrical or Electronics Engineering, or comparable field of study, and/or equivalent work experience. 10+ years relevant industry experience. Mastery of backend platform development technologies and principles. Mastery … of software architectural patterns. Extensive experience with Cloud-based architecture. Extensive experience with Java, Kotlin, Rust, Go or other system level languages. Experience with task Automation (GitLab Pipelines, GitHub Actions, TeamCity). Experience with multiple database technologies such as MySQL, Postgresql, RDS, Cassandra, Mongo, etc. Experience using enterprise-grade frameworks such as Spring Boot. Strong communication skills and attention More ❯

Overview As a Principal Software Engineer , you will work in one of our core platform teams, playing a key role in developing software that makes a real impact on people's lives, whether it's developing Covid Tests and vaccines, helping scientists detect cancer, ensuring food safety, or developing biodegradable plastics - our work delivers benefit! Responsibilities … and all applicable procedures. Contribute to the development and maintenance of all aspects of the applications and services owned by the team. Qualifications What will make you a successful Principal Software Engineer at Waters: Extensive knowledge and proven experience as a software developer, with exposure to back-end technology stacks (C#, .NET). Experience with Front … End JavaScript Frameworks, especially Angular. Good experience working with Amazon Web Services, Microservices, API development. Knowledge and application of software engineering practices (e.g., Unit testing, TDD, CI/CD, SOLID, BDD). Proven ability to work as part of a team. Ability to analyze and solve problems. Excellent communication and teamwork skills. The following criteria are desirable but not More ❯

Principal Embedded Software Engineer £70-90k Reading Remote, with occasional visits My client is an elite company providing media content solutions. Due to sustained success, they are expanding their R&D team. They're seeking a Principal Software Engineer with a strong background in embedded systems and a passion for solving complex technical … challenges in a high-performance environment. Key Responsibilities: Lead software architecture across the full stack, from UI and services to kernel-level development. Collaborate with hardware and FPGA teams to deliver tightly integrated, high-speed embedded systems. Mentor engineers, drive best practices, and contribute to recruitment and technical leadership. Essential Experience: 10+ years in C++ software development in … a Linux environment Experience building complex software for custom hardware, including device interfacing. Strong foundation in data structures, algorithms, and object-oriented design. Desirable Skills: Exposure to Qt, Yocto, Linux kernel, or device driver development. Knowledge of high-speed data, graphics processing, or networking (TCP/IP, multicast). Familiarity with Python, GitLab, or AWS What you'll get More ❯

Principal Automation Test Engineer Next-Gen Medical Devices Location: Scotland | Team: R&D | Type: Full-Time Spacelabs Healthcare is seeking a hands-on Principal Automation Test Engineer to lead the strategy, design, and delivery of test automation for our next-generation networked patient monitoring platform. Youll work across systems, hardware, software, and verification teams to … automation backlog with cross-functional teams Mentor engineers and promote high-quality engineering practices Ensure timely delivery of automated test solutions and documentation What You Bring 10+ years in software engineering, including 4+ years in test automation leadership Deep expertise in Python, OOP principles, CI/CD workflows, and Agile methods Experience with automation tools and modern test practices More ❯

Principal Embedded Software Engineer | £70-90k | Reading | Remote, with occasional visits My client is an elite company providing media content solutions. Due to sustained success, they are expanding their R&D team. They're seeking a Principal Software Engineer with a strong background in embedded systems and a passion for solving complex technical … challenges in a high-performance environment. Key Responsibilities: Lead software architecture across the full stack, from UI and services to kernel-level development. Collaborate with hardware and FPGA teams to deliver tightly integrated, high-speed embedded systems. Mentor engineers, drive best practices, and contribute to recruitment and technical leadership. Essential Experience: 10+ years in C++ software development in … a Linux environment Experience building complex software for custom hardware, including device interfacing. Strong foundation in data structures, algorithms, and object-oriented design. Desirable Skills: Exposure to Qt, Yocto, Linux kernel, or device driver development. Knowledge of high-speed data, graphics processing, or networking (TCP/IP, multicast). Familiarity with Python, GitLab, or AWS What you'll get 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 … modern microservices You have experience 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 ability to buy more) Pension … Health Care, Life Assurance Enhanced maternity/paternity packages Professional training and career development Hybrid work from home (x2 days office) Apply now to find out more about this Principal Backend Software Engineer/Developer (C# .Net Core Azure) opportunity. At Client Server we believe in a diverse workplace that allows people to play to their strengths More ❯

Principal Software Engineer, Backend - Full or Part Time You've probably heard of Autotrader, but do you know what we're all about? We're the UK's leading automotive marketplace, a heritage brand, and a tech darling of the stock market. We bring together vehicle buyers and sellers to give them real choices. Cars may be … is a beautiful, surprising and vibrant place to work. We might not be for everyone, but we could be perfect for you. About the role We're looking for Principal Software Engineers to help us build a technology platform for more than just the needs of Autotrader.co.uk. Utilising our public-facing web services and additional external data sources … power businesses across the automotive industry. Spring Boot, Apache Solr, Cloud SQL and Apache Kafka power our platform and process millions of events per day. As a team, our software developers are responsible for ensuring service availability and responsiveness continue to improve. They work on systems that handle thousands of requests per second, with sub-100 millisecond response times More ❯

Job Requisition ID # 25WD89838 Position Overview As a Principal Software Engineer at Autodesk Research, you will work on new ML-powered product features that help our customers imagine, design, and make a better world. You are a software engineer passionate about solving problems and building solutions. You will collaborate with scientists, research engineers, and … platform engineers to build and deploy scalable data pipelines for machine learning. Your expertise spans data processing and distributed systems, with a focus on software engineering. You will work at the intersection of research and product, building generative AI features in Autodesk products. You will report to: Manager, Autodesk Research, Generative AI. Location: London or remote (within UK). … ambiguous, newly forming areas. Skilled in building prototypes, maintainable systems, and owning developed systems. Has a growth mindset and passion for learning. Learn More About Autodesk Autodesk creates innovative software used in various industries, helping turn ideas into reality and transforming how things are made. We pride ourselves on our culture, which guides our work, relationships, and global impact. More ❯

Principal Software Engineer (Rates & FX) page is loaded Principal Software Engineer (Rates & FX) Apply locations Belfast time type Full time posted on Posted 4 Days Ago job requisition id R3782 Role Overview As a Principal Software Engineer at TP ICAP you will be part of a talented team delivering business critical … software for the internal broking division and their external customer base. You will work within an Agile environment, from design through to implementation, with a strong focus on continuous improvement whilst working collaboratively as part of self-organising, cross-functional team with a focus on continuous integration and deployment. Role Responsibilities Lead and manage a cross-functional team of … engineers working on innovative Front Office solutions for our Rates & FX business lines Work closely with principal engineers in other regions to set and implement standards for engineering excellence Work closely with Solution Architects and Enterprise Architecture to build solutions that align to the IT strategy/vision Take ownership of, and be accountable for, the delivery and quality More ❯

Summary: This position offers a roughly 80/20 split between hands-on embedded software development and leadership responsibilities, supporting a small team of 3-5 specialist software engineers. Projects are varied-ranging from short 2-day sprints to full-scale 2-year development programmes-across a wide range of industries. It's an excellent fit for someone … with solid embedded software experience and some exposure toleadership-whether direct orinformal-who's ready to take the next step. A broader understanding of cloud or application-level development is also useful, given the diversity of work. Location: Commute from Cambridge, Saffron Walden, Newmarket, Braintree, Hitchen, Harlow, St Neots, Bury St Edmunds, Chelmsford (Hybrid, 3 days onsite) Salary: Circa … 75k Type: Permanent | Hands-on Technical + Leadership Other: No Visa sponsorship available The Opportunity This is a hands-on role combining software development with team leadership. You'll lead a small, close-knit sub-team within a larger multidisciplinary software group, contributing to the design and delivery of embedded systems for a range of real-world applications More ❯

drive your career while contributing to the Linux upstream ecosystem and advancing open-source graphics DRM drivers? Arm is seeking highly skilled and motivated engineers to join our Agile Software development team working on the drivers for the next generation Mali GPU products. We work closely with the multi-disciplined engineering teams across Arm's European design centres, being … in constant collaboration with both Software and Hardware engineers as well as Architects. We have a strong track record of building up expertise in people, so this is a phenomenal opportunity for learning new things in a friendly and collaborative environment. Join a multinational, multifaceted and highly motivated software development group with great work ethics where you will … day responsibilities include: Being a member of GPU Linux Kernel team responsible for contributing and maintaining the upstream version of Mali GPU Driver (panthor) Participating in all phases of software development - including design, implementation, testing, code review and documentation. Working closely with other software teams to interface driver components. Maintaining the existing codebase: fixing bugs and other quality More ❯

Job Title: Principal Software Engineer-Core Java Location: Vaishnavi Tech Park, Bellandur, Bengaluru, KA About Us smartShift is an industry leader in providing automation solutions for the modernization of SAP custom ABAP code. We are a 300 person, Boston-based company with operations in Germany, UK, Nordics, and India, and are experiencing profitable growth of over More ❯

PRINCIPAL SOFTWARE ENGINEER CITY OF LONDON - 4/5 DAYS IN OFFICE £100,000 - £120,000 Our client, a leading investment management firm specialising in sports trading, is looking for a talented individual to join their expanding technical team. This is a unique opportunity to apply your expertise to real-world sporting events and contribute to a … and a genuine commitment to work-life balance and flexibility. Their high team retention speaks volumes about the supportive and engaging environment they've cultivated. THE ROLE: As a Principal Software Engineer, you'll be instrumental in developing sophisticated predictive models that forecast the outcomes of sporting events. You'll be working with strong quants coming from … ll be joining a collaborative environment where you have the opportunity to work cross-functionally and significantly impact the company's core operations. YOUR SKILLS AND EXPERIENCE: The ideal Principal Software Engineer will have: Strong mathematical and statistical expertise, ideally from a quantitative background. Proficiency in C# and the .NET platform. Experience with JavaScript front-end frameworks More ❯

Principal Robotics Software Engineer | AUV’s | ROV’s | Harwell – Hybrid | £70,000pa plus share scheme & benefits: A once in a lifetime opportunity has arisen for a passionate robotics Software Engineer to join a game changing company who has a pipeline of robotic AUV, ROV & UAV products which are going to be brought into existence and … robotics and the autonomous vehicle and unmanned vehicle industry, you honestly need to make contact with us, this one is not to be missed. MARS is recruiting an experienced Principal Software Engineer to lead the design, development, and integration of advanced software for next-generation underwater unmanned platforms. This role will play a pivotal part in … driving autonomy, perception, and mission-critical software for submersible robotic systems. Candidates must be British Citizens or lived in the UK for 10 years, due to needing SC clearance. Key Responsibilities: Lead the architecture, design, and development of software for autonomous underwater vehicles (AUVs) and remotely operated vehicles (ROVs), leveraging ROS/ROS 2 and other robotic middleware. More ❯

Job Title: Principal Software Engineer - x8 Location: Cowes - We offer flexible working arrangements - please speak to your recruiter about the options for this particular role Salary: Up to £68,000 (dependent on skills and experience) What you'll be doing: Derive and maintain a set of software requirements from a baseline set of systems requirements Produce … and maintain a software design to meet a set of software requirements Undertake peer reviews or checking/verification of peers' solutions across Maritime Services Undertake technical reviews, verify and authorise software engineering designs Act as an Engineering technical lead for a software solution at a sub-system level Maintain a software solution to address … reported defects and/or add new functionality Support the development of individuals and teams to enhance skills and competencies Produce or assist in the creation of software estimates for sub-systems Your skills and experiences: Good experience of using at least one high level programming language Considerable experience of using a high-level design methodology - knowledge of UML More ❯

A long-standing client is looking to backfill a Principal Systems Engineer/Architect position following the departure of their 20-year veteran architect, big shoes to fill, but an exceptional opportunity for a senior technical professional to take on a pivotal role. The company operates a bespoke, self-built platform that's central to its business operations … Contributing to future architecture planning and decision-making Skills/Must have: Strong experience in Java Strong Experience with Perl (reading and developing) 10+ years' experience in systems/software engineering roles Network Experience (nice to have) Kubernetes (Nice to Have) Understanding of KVM or broader system architecture Benefits: Overtime: Anything after 8pm is double pay, or time in More ❯

s IDMC platform. You'll play a crucial role in the evolution of our new Cloud Data Access Management (CDAM) service, which governs and enforces privacy within IDMC. Senior Software Engineer - Front End We are looking for a Senior Software Engineer to join our hybrid-work team in London (Victoria), Great Britain. This is hybrid model … with geographically dispersed teams in an Agile environment. Drive features in the platform that cut across multiple product groups. What We'd Like to See 8 years experience in Software Engineering. TypeScript and React experience whilst working on complex Web Applications with high scalability and availability requirements. Experience as a technical lead for impactful and complex projects and guiding More ❯

Job Description: Are you a Real Time Embedded Software Engineer ready to take the next step in your career? If you are looking for opportunities for progression, to learn and grow within a supportive environment, Leonardo has multiple roles available. Do you want to deliver solutions within multidisciplinary Agile teams working on the forefront of defence engineering projects … Do you 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 a guide to the list of skills and … Delivering high-quality, high-integrity 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 ability to influence the development More ❯

Job Overview This is a phenomenal opportunity to join as the Technical Lead for the Automotive and Industrial Solutions (AIS) team in our Software Engineering group. You will have the opportunity to build upon your existing background, knowledge and expertise and contribute to Arm technology deployed in the next generation of Arm Automotive Solutions: You will join a globally … distributed team of Software Developers who all share a passion for wanting to stamp their mark on the future of computing, wherever it may lead. Passionate about groundbreaking technologies? We want to hear from you. Job Requirements Responsibilities: As the overall technical lead of the team, you will provide technical direction and expertise to the team and ensure strong … tasks, and help implement project plans. You will collaborate closely with open source communities, technology managers, and IP development teams to deliver roadmap commitments. You will be actively driving software design and creation of stacks for Arm's reference platforms, and lead development practices for best-in-class software efficiency, quality, and predictability. Help develop, optimise and deliver More ❯

Principal Software Engineer -C#/.Net,React Introduction: Are you searching for an opportunity to play a key role in driving the dramatic growth of a highly successful software company? At Poppulo, we're working on what's next in communications and workplace technology. As a pioneer in this industry, we understand that meaningfully reaching every … the requirements. We believe in fostering an environment where there is a diversity of perspectives, in hopes that we can all thrive. The Opportunity We are seeking a skilled Principal Software Development Engineer to join our Extensions & Adapters team within Data Integrations. In this role, you'll build and enhance plugins that expand the functionality of our … adapters and integration components (Listeners, Actions, Endpoints). Identify and implement performance improvements and optimization strategies for high data throughput. Mentor team members, ensuring adherence to best practices in software development and architecture. Participate actively in agile processes and foster a collaborative and innovative team culture. Integrate and experiment with AI technologies, leveraging generative AI and Large Language Models More ❯

belief that crypto networks and theblockchain have the power to fundamentally change the art world by creating greater choice,independence, and opportunity for artists, creators, and collectors. The Role: Principal Software Engineer At the Principal level, engineers are expected to master their immediate domain and have broad impactacross other engineering teams. This person will define technical … direction, unblock and mentorteammates, and tackle the most complex system and architectural challenges. Principal engineers aredistinguished by their organization-level impact and focus on high-leverage activity, in addition to directcode contribution. Beyond pure technical focus, Principals bridge the gap between management and engineering - they obsess over not only the how, but also what and why, and are able … to disseminate thiscontext to both audiences, up-leveling the entire organization in depth and delivery. Responsibilities: Influence leadership/CTO organization and collaborate with other Principal Engineers across the organization to build the right software architecture for Nifty Gateway. Design, implement, deploy, and maintain services supporting multiple engineering teams. Advocate and model technical and operational excellence. Drive large More ❯

bean scopes and when to use them. Able to identify and fix defective, poor performing or non-scalable code. Knows how to develop and debug AOP injected code. Understands software security practices including user authentication and authorization, data validation and an understanding of common DOS and SQL injection techniques. Is familiar with profiling, code coverage, logging, common IDE's More ❯

Ramon.Space is a leader in space-resilient computing infrastructure. Powered by its unique AI/ML processors, Ramon.Space's software-empowered systems enable the realization of Earth-like space-resilient computing capabilities in space. Ramon.Space has a proven track record in space since 2014, the company's proven technology has already been deployed in space and used in over … global start-up with 70 + employees based out of the U.S., Israel and are now expanding in the U.K. We are looking for a highly skilled and experienced Principal Software Engineer to join our innovative team. This role is critical for developing the software components that drive our state-of-the-art satellite communication and … processing systems. The ideal candidate will have a strong background in software development for embedded systems and experience in digital communication and IP routing. As a Principal Software Engineer, you will lead the design, development, and implementation of advanced software solutions, collaborating with our multidisciplinary team to ensure the deployment of cutting-edge, reliable, and More ❯

This role is pivotal in leading the development of user-facing Ground Control Station (GCS) software designed to enable operators to remotely control and monitor autonomous vehicles beyond visual line-of-sight. This involves creating robust, intuitive interfaces using C++, Qt, QML, and JavaScript, alongside incorporating modern UX principles and rigorous testing methodologies. Key Responsibilities: Lead the design and … development of user-facing GCS software for autonomous vehicle monitoring and control. Build and maintain user interface software using C++ and Qt - QML and JavaScript experience would be useful here too. Engage with operators to gather requirements, validate usability, and refine user experience. Develop prototypes and storyboards to capture user requirements and iterate on design concepts. Ensure software robustness through rigorous testing, validation, and performance optimisation. Collaborate with cross-functional teams, including autonomy and hardware engineers, to integrate software solutions. Document and maintain codebases with a focus on readability, scalability, and maintainability. Provide technical leadership and mentorship to junior developers. Job Requirements: Extensive experience in C++ and Qt, ideally including QML and JavaScript. Strong understanding of More ❯