1 to 25 of 51 Principal Software Engineer Jobs in the UK excluding London

Principal Software Engineer page is loaded Principal Software Engineer Apply locations Woking, United Kingdom time type Full time posted on Posted 2 Days Ago job requisition id R IDBS helps BioPharma organizations unlock the potential of AI/ML to improve the lives of patients. As a trusted long-term partner to 80% of … the top 20 global BioPharma companies, IDBS delivers powerful cloud software and services specifically designed to meet the evolving needs of the BioPharma sector. IDBS, a Danaher company, leverages 35 years of scientific informatics expertise to help organizations design, execute and orchestrate processes, manage, contextualize and structure data and gain valuable insights throughout the product lifecycle, from R&D … through manufacturing. Known for its signature IDBS E-WorkBook software, IDBS has extended its flexible, scalable solutions to the IDBS Polar and PIMS cloud platforms to help scientists make smarter decisions with assured confidence in both GxP and non-GxP environments. Do you want to work in a dynamic, fast paced, high performing, safe to fail and fun environment More ❯

Principal Software Engineer | C++ | Python | Linux Oxfordshire | Hybrid £65,000pa plus benefits: Do you enjoy technically leading and mentoring a team of Software Engineers utilising C++ & Python on Linux, passing on your knowledge and experience to help nurture and develop future Engineers? If so, this Principal Software Engineer role will be perfect for … you. Our client has seen rapid growth over the last few years, and to help develop their talented team of Software Engineers, they now seek a Principal Software Engineer who can technically lead, mentor and develop during an exciting period of innovation.On a day-to-day basis you will develop and support software applications and … drivers for a range of products. You will be technically responsible for ensuring projects meet internal and external customer requirements and completing concept designs through to production. The successful Principal Software Engineer will need the following qualification, experience and skills: A degree in a Software Engineering, Mathematics or Science/Materials subject Experience in ARM based More ❯

Principal Software Engineer | C++ | Python | Linux Oxfordshire | Hybrid £65,000pa plus benefits: Do you enjoy technically leading and mentoring a team of Software Engineers utilising C++ & Python on Linux, passing on your knowledge and experience to help nurture and develop future Engineers? If so, this Principal Software Engineer role will be perfect for … you. Our client has seen rapid growth over the last few years, and to help develop their talented team of Software Engineers, they now seek a Principal Software Engineer who can technically lead, mentor and develop during an exciting period of innovation. On a day-to-day basis you will develop and support software applications … drivers for a range of products. You will be technically responsible for ensuring projects meet internal and external customer requirements and completing concept designs through to production. The successful Principal Software Engineer will need the following qualification, experience and skills: A degree in a Software Engineering, Mathematics or Science/Materials subject Experience in ARM based More ❯

Principal Software Engineer page is loaded Principal Software Engineer Apply locations Maidenhead (GBR) Gloucester, Gloucestershire, England, UK time type Full time posted on Posted Today job requisition id REQ-10596 Company: Ultra Intelligence & Communications Cyber (UK) Business Provide Decision Advantage to Mission Partners Around the World Join us in our mission to provide the … the highest security and trust worldwide. Job Description The Ultra Engineering function manages a portfolio of specialist capabilities, generating highly differentiated solutions and products by applying electronic, mechanical, and software technologies in demanding and critical environments to meet customer needs. The Software Engineering function in Ultra supports the software development lifecycle consisting of requirements analysis, design, implementation … test and verification in order to deliver software components into projects and products and supports the deployment and maintenance of software components. A professional at this grade applies technical/professional knowledge, making independent judgements based on practice and significant previous experience to support decision making. Often seen as a referral point or more senior team member to 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 Software Engineer (£100k + benefits) Great opportunity for a Principal Software Engineer with experience of .NET and AWS to join a fast-growing FinTech company in Manchester that have an award-winning culture built on collaboration. You'd join a large engineering department and would work with cross functional teams responsible for building … high-performance, cloud-native systems in a DevOps environment. As a Principal Software Engineer, you'll lead by example, writing production-grade code while shaping architecture, mentoring engineers, and driving technical excellence across teams. What You'll Be Doing: Designing and building scalable, distributed systems (60% hands-on coding) Leading technical strategy across multiple product teams Coaching … and mentoring Staff & Senior Software Engineers Owning non-functional requirements: scalability, security, performance Driving DevOps, CI/CD, and containerisation best practices Exploring and implementing AI-powered dev tools What We're Looking For: Strong hands-on skills in C#, .NET 9, Angular, NextJS and AWS Deep understanding of CI/CD, automation and modern DevOps practices Experience with More ❯

Job Title: Principal Software Engineer (Cloud Applications) Location: Hybrid/Remote (Hemel Hempstead) Salary: £100,000 per annum Job Type: Full Time, Permanent Eckoh is a market leader of Customer Engagement Security Solutions, supporting an international client base from our offices in the U.S. and the U.K. Eckoh is owned by Bridgepoint one of the world's … the risk of fraud and data breaches, become compliant with security regulations, as well as enhancing their brand and increasing customer satisfaction. The Role: We're looking for a Principal Software Engineer with deep expertise in cloud-native application development, large-scale data systems, and modern AI technologies. This role goes beyond traditional engineering-you'll architect … ownership of designing distributed systems, APIs, and event processing platforms in a cloud-first environment, primarily on AWS. You'll collaborate across engineering and product to deliver high-performance software, working hands-on across the stack with languages like Node.js, Python, Nuxt, Vue and the range of AWS systems. Key Functional Responsibilities: Application & System Design: Architect and implement backend More ❯

Job Title: Principal Software Engineer (Cloud Applications) Location: Hybrid/Remote (Hemel Hempstead) Salary: £100,000 per annum Job Type: Full Time, Permanent Eckoh is a market leader of Customer Engagement Security Solutions, supporting an international client base from our offices in the U.S. and the U.K. Eckoh is owned by Bridgepoint one of the world's … the risk of fraud and data breaches, become compliant with security regulations, as well as enhancing their brand and increasing customer satisfaction. The Role: We're looking for a Principal Software Engineer with deep expertise in cloud-native application development, large-scale data systems, and modern AI technologies. This role goes beyond traditional engineering-you'll architect … ownership of designing distributed systems, APIs, and event processing platforms in a cloud-first environment, primarily on AWS. You'll collaborate across engineering and product to deliver high-performance software, working hands-on across the stack with languages like Node.js, Python, Nuxt, Vue and the range of AWS systems. Key Functional Responsibilities: Application & System Design: Architect and implement backend 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 (£90k + 10% bonus) Great opportunity for a Principal Software Engineer to work for a retail company near Manchester at the beginning of a digital transformation. You'd report to the Head of Engineering and would work as part of a team of Principal Software Engineers responsible for collaborating More ❯

Social network you want to login/join with: Principal Software Engineer - Manchester, Manchester col-narrow-left Client: Accenture Location: Manchester, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Reference: 12f57f107922 Job Views: 4 Posted: 29.06.2025 Expiry Date: 13.08.2025 col-wide Job Description: Principal Software Engineer - Manchester Role … Principal Consultant - Software Engineering Locations: Manchester (must be willing to travel to client sites throughout the UK on an ad hoc basis) Level: Manager Salary:petitive salary and package (Depending on level of experience) Please Note: Any offer of employment is subject to satisfactory BPSS and SC security clearance which requires 5 years continuous UK address history at … doing so. The nature of our work varies from client to client so there will be lots of opportunities to experience new domains and new stacks. The role of Principal Consultant often involves leading client accounts holistically-people, delivery, quality, andmercials. As well as ensuring we're delivering great engineering, you'll also keep the big picture in mind More ❯

VANRATH are partnering with a global FinTech company to recruit for a Principal Software Engineer to join a high-performing technology team. This is a fantastic opportunity to work on business-critical platforms used by major players in the global market. As the Principal Software Engineer you will have the opportunity to work on … AWS, while shaping the engineering culture of a forward-thinking team. What You'll Do Mentor engineers and align development with project goals and timelines Design, build, and maintain software solutions Collaborate with BAs and PMs to shape and refine technical requirements Implement Infrastructure as Code (IaC) using AWS CDK (Python) Maintain CI/CD pipelines and drive code … cloud-based systems Participate in agile ceremonies and promote a strong agile culture Document technical designs, processes, and system architecture What We're Looking For Proven experience as a Principal .NET Engineer (finance sector a plus) Strong AWS knowledge with hands-on IaC (CDK + Python) Solid experience with unit testing, CI/CD, and agile methodologies Familiarity More ❯

Principal Software Engineer (Corp Functions) page is loaded Principal Software Engineer (Corp Functions) Apply locations Belfast time type Full time posted on Posted Yesterday job requisition id R4066 Role Responsibilities Mentor other engineers in the team, whilst ensuring alignment with project goals and timelines across the team. Design, develop, and maintain software, ensuring … through automated testing, particularly unit testing, and maintain a strong emphasis on code quality and complexity. Oversee the implementation and management of CI/CD pipelines to streamline the software development lifecycle. Monitor system performance, identify issues, and implement solutions to ensure high availability and performance. Ensure security best practices are followed and implement necessary measures to protect cloud … ceremonies and contribute to an agile mindset within the team. Maintain detailed documentation of code, processes, and system configurations. Experience/Competences Essential Proven experience as a Senior .Net Engineer, preferably in the finance sector. Strong understanding of AWS services and hands-on experience with Infrastructure as Code (IaC), particularly using AWS CDK in Python. Experience with Entity Framework More ❯

Principal Software Engineer/Tech Lead Department: Software Engineering Employment Type: Full Time Location: Leeds - Hybrid Reporting To: Tech Director Description We're hiring a Principal Software Engineer/Tech Lead to help shape the future of our most ambitious client projects. This is a senior, hands-on role focused on technical excellence … and problem solving. You'll play a key role in shaping the technical direction of projects-helping to design architecture, guide engineering teams, and ensure delivery of scalable, maintainable software solutions. You'll be a trusted technical lead for client work, collaborating closely with internal teams to define and deliver great outcomes. Comfortable in both code and conversation, you … Strong hands-on experience with modern JavaScript/TypeScript frameworks, especially Next.js, React and React Native. Demonstrable experience building or delivering AI-enabled features or products. Solid understanding of software architecture, design principles and systems integration. Experience building scalable APIs, distributed systems, or cloud-native applications. Practical knowledge of DevOps practices, CI/CD pipelines, infrastructure as code, and More ❯

with our customers. We are not only passionate about achieving the right outcome and making quality decisions but are dedicated to our collaborative culture. About the role. As a Principal Software Engineer, you will be responsible for designing, building and running front-end and/or back-end software solutions in an agile delivery squad. This … hands-on, you'll be actively involved in designing, implementing and running the products and services that your squad are responsible for. You'll help shape best practices in software engineering, then both work to and coach other Squad members into driving and ensuring high quality solutions. Our Principal Software Engineers will work as Tech Leads within … autonomous product teams delivering products that are part of the rebuild and in squads aligned to our other key business goals. Our Principal Software Engineers will take responsibility for the technical delivery of great software and they will lead the technical direction for the team. The ability to coach and mentor team members is essential to this More ❯

Principal Software Engineer Location: Manchester (Central) or Leeds (South) (Hybrid Up to 2 days in office) Salary: Up to £95,000 base + Car Allowance + Exceptional Bonus Scheme - Up to 30% Architect the Future of Cloud-Native SaaS at Enterprise Scale We are exclusively partnered with our client , a world-class, global SaaS enterprise, undergoing one … of the most ambitious digital transformations in the industry. As part of their UK & European technology organisation, Were looking for a Principal Software Engineer whos ready to take the next step into architecture. This is a rare opportunity to slowly transition into a Solution Architect role and play a key part in shaping next-generation platforms that … orchestration Microservices, RESTful APIs Event-driven architectures SQL and NoSQL technologies CI/CD, Infrastructure as Code Scalable, cloud-native, distributed systems What Were Looking For A background in software engineering with a deep understanding of scalable system architecture. Hands-on experience designing and delivering cloud-native platforms in complex, fast-moving environments. Strong knowledge of modern development practices More ❯

Java Principal & Senior Software Engineers - Global Fintech (Remote/UK-Based) We are working with an established global fintech , renowned for delivering world-class payments-related software and technology, to help them grow their UK engineering team. They're on a mission to power the next generation of merchant-first capabilities, and are looking for both Principal and Senior Software Engineers to join them on that journey. This is a fantastic opportunity to work with a high-performing, autonomous team at the heart of a global payments ecosystem. You will solve real-world challenges at scale, with a strong emphasis on quality, modern engineering practices, and building software that delivers real value. Why Join … career here. ? Real-world purpose Everything built here is designed to solve actual problems for merchants around the world, not vanity projects or endless rewrites. The Opportunity As a Principal or Senior Software Engineer, you will: Design and develop backend services, APIs, and platform features within a modern, cloud-based payments architecture. Lead or contribute to projects 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 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 ❯

Great opportunity for a Principal Software Engineer with experience of .NET and AWS to join a fast-growing FinTech company in Manchester that have an award-winning culture built on collaboration. You'd join a large engineering department and would work with cross functional teams responsible for building high-performance, cloud-native systems in a DevOps environment. … As a Principal Software Engineer, you'll lead by example, writing production-grade code while shaping architecture, mentoring engineers, and driving technical excellence across teams. What You'll Be Doing: Designing and building scalable, distributed systems (60% hands-on coding) Leading technical strategy across multiple product teams Coaching and mentoring Staff & Senior Software Engineers Owning non More ❯

Principal Software Engineer Security Cleared (High Level of UK Government Security Clearance Required) Salary: up to £100k + Benefits Copello Global is supporting a confidential client within the defence/technology sector in their search for an experienced Software Engineer to join them in Cheltenham. This is an exciting opportunity to work with a global … leader on highly impactful mission-critical programmes. The Role Design, build, and maintain secure, scalable software Write, review code, and support CI/CD pipelines Break down complex features and manage them within Agile workflows Deliver technical demos to internal and external stakeholders Skills Required Proficiency in Java, Python, or JavaScript Experience with AWS or Azure Familiarity with Jenkins 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, manage Staff Engineers, and drive technical excellence across multiple teams. … 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 empowering teams, this is the role for you! Key responsibilities Hands-on coding (at least 60% of the time), working More ❯

Principal Software Engineer (Java) London – 1 day a week onsite 🚀 Join a FinTech Powering the Future of Payments Are you a seasoned individual contributor looking for a step up into a senior position within a high-performing team within the world of Banking/Payments? Are you passionate about high-throughput, real-time systems? This is your … or more if you’d like!) 🌍 Opportunity to collaborate with major global banks 🚀 Fast-paced, product-led environment where your voice matters If you're a motivated Senior/Principal/Staff Java Software Engineer ready to tackle complex challenges and deliver meaningful change, hit apply – and shape the future of payments with us. More ❯

Principal Software Engineer (Java) London – 1 day a week onsite 🚀 Join a FinTech Powering the Future of Payments Are you a seasoned individual contributor looking for a step up into a senior position within a high-performing team within the world of Banking/Payments? Are you passionate about high-throughput, real-time systems? This is your … or more if you’d like!) 🌍 Opportunity to collaborate with major global banks 🚀 Fast-paced, product-led environment where your voice matters If you're a motivated Senior/Principal/Staff Java Software Engineer ready to tackle complex challenges and deliver meaningful change, hit apply – and shape the future of payments with us. More ❯

Principal Software Engineer (Java) London – 1 day a week onsite 🚀 Join a FinTech Powering the Future of Payments Are you a seasoned individual contributor looking for a step up into a senior position within a high-performing team within the world of Banking/Payments? Are you passionate about high-throughput, real-time systems? This is your … or more if you’d like!) 🌍 Opportunity to collaborate with major global banks 🚀 Fast-paced, product-led environment where your voice matters If you're a motivated Senior/Principal/Staff Java Software Engineer ready to tackle complex challenges and deliver meaningful change, hit apply – and shape the future of payments with us. More ❯