1 to 25 of 28 Principal Developer Jobs in England

Principal Developer - Active SC Required £600 per day (Inside IR35) 6 Month Contract Remote Working | Occasional Travel to London We're looking for a Principal Developer to join a major engineering programme delivering large-scale, cloud-native systems within AWS. This is a hands-on technical … Gateway. Lambda Authorizer. Terraform. Helm. Kafka/AWS MSK. Secrets Management. Authentication and Authorisation. Certificate Management. Ideal Candidate You'll be an experienced Principal Developer with a strong background in Java and AWS, capable of leading complex technical delivery while remaining hands-on. You'll have experience working ...

Principal Software Developer, AI Integration, C#, £550 day rate, Outside IR35, Reading, COR7630 We’re looking for an experienced Principal Software Developer to join a long-term contract with an initial 3-month term and a strong likelihood of extension up to 18 months. This role … based in Reading, with three days per week onsite, and offers a day rate of up to £550, outside IR35. As a Principal Software Developer, you’ll play a key role in driving the adoption of AI within a software engineering team. Working closely with developers ...

Principal Developer - Active SC Required £600 per day (Inside IR35) 6 Month Contract Remote Working Occasional Travel to London We're looking for a Principal Developer to join a major engineering programme delivering large-scale, cloud-native systems within AWS click apply for full job details ...

Role Profile Job title: Principal Developer Reporting to: Abigail Howe Based at: Remote – UK Assigned office - York Road, London Purpose As a Principal Developer in the IP Development team, you will provide senior technical leadership and architectural direction across squads to ensure consistent, high‐quality ...

Principal-level engineering of modern C# cloud software enhancing sustainability Cambridge, hybrid working; to £80k+ DoE with top benefits This role will suit a principal software developer with expertise guiding and contributing directly to cloud software development with AWS or Azure. The data-oriented platform and pipeline … suite of applications with a positive impact on global sustainability, and this is a prominent role with responsibility and reward. You will have a principal engineer's ability to address the finer points of architecture, consider the ramifications of far-reaching decisions, collaborate with stakeholders, and cultivate and apply ...

Principal-level engineering of modern C# cloud software enhancing sustainability Cambridge, hybrid working; to £80k+ DoE with top benefits This role will suit a principal software developer with expertise guiding and contributing directly to cloud software development with AWS or Azure. The data-oriented platform and pipeline … suite of applications with a positive impact on global sustainability, and this is a prominent role with responsibility and reward. You will have a principal engineers ability to address the finer points of architecture, consider the ramifications of far-reaching decisions, collaborate with stakeholders, and cultivate and apply ...

meaningful change and build a rewarding career that makes a real difference to our organisation and the communities we serve. About the role As Principal Developer, you will play a pivotal role in shaping the future of digital policing, leading the design, configuration,developmentand continual evolution ...

Wiltshire Police is seeking a Principal Developer to shape the future of digital policing, leading design, configuration and evolution of technology solutions powering critical services. You will drive engineering excellence, champion security, and guide teams through AI-enabled and automation initiatives. The role emphasizes coaching, collaboration across multidisciplinary ...

Bell Integration in the United Kingdom is seeking a Principal Developer to provide senior technical leadership across the IP Development team and set architectural direction for scalable engineering delivery across squads. You will mentor Lead Developers and senior engineers, lead architectural reviews, and drive innovation with ...

Principal-level engineering of modern C# cloud software enhancing sustainability Cambridge, hybrid working; to £80k+ DoE with top benefits This role will suit a principal software developer with expertise guiding and contributing directly to cloud software development with AWS or Azure. The data-oriented platform and pipeline ...

Confidential Challenger Banking Client are looking for Principal Engineers to build new greenfield AI native digital banking products 0-1! They are using the latest AI Technology to ship fast. They can offer up to £150,000 basic + 20% bonus + double matched pension. They are based … London, and collaborate 2 days a week in the office. We are looking for strong Full Stack Principal Engineers to lead a squad of 8-10 with the following experience: Seniority: experience leading as a principal, staff level or tech lead. Ownership/Accountability: Have been responsible ...

Confidential Challenger Banking Client are looking for Principal Engineers to build new greenfield AI native digital banking products 0-1! They are using the latest AI Technology to ship fast. They can offer up to £150,000 basic + 20% bonus + double matched pension. They are based … London, and collaborate 2 days a week in the office. We are looking for strong Full Stack Principal Engineers to lead a squad of 8-10 with the following experience: Seniority: experience leading as a principal, staff level or tech lead. Ownership/Accountability: Have been responsible ...

Company Description Version 1 has celebrated 30 years in business and continues to be trusted by global brands to deliver technology and transformation solutions that drive customer success. Our deep expertise enables our customers to ...

Company Description Version 1 has celebrated30 yearsinbusinessand continues to be trusted by global brands to delivertechnology and transformationsolutions that drive customer success. Ourdeepexpertiseenables our customers to navigate the rapidlyevolving technology landscape. We foster strong partnerships ...

Company DescriptionVersion 1 has celebrated 30 years in business and continues to be trusted by global brands to deliver technology and transformation solutions that drive customer success. Our deep expertise enables our customers to navigate ...

predictive intelligence. Represent the AI engineering organisation in technical conversations and architectural reviews with outside teams. Your Qualifications Strong experience working within Software Engineering, Principal or Architect‐level role owning systems at scale. Deep expertise in Python and in designing and operating high‐availability, production ML services. Hands ...

Date Posted: 2026-09-18 Country: United Kingdom Location: Winnersh, Wokingham Position Role Type: Hybrid Principal Training Developer Permanent Benefits: £: Competitive salary Contributory Pension Scheme (up to 10.5% company contribution) 6 times salary Life Assurance with pension 25 days holiday (increasing with service) + statutory public holidays, plus … service men and women really are prepared for any situation. Role & Responsibilities Raytheon UKs Courseware and Media Development Capability (CMDC) is looking for Principal Training Developers to support development for our training materials. Responsibilities Effectively managing a team of Training Developers and/or Senior Training Developers. Efficiently delegating ...

Role Role : Principal/Senior Java Developer – Elite FinTech Rate: Up to£750 per day Location :London Working Pattern :Hybrid Contract :Contract They are looking for an exceptional Principal/Senior Java Developer to join a high-calibre engineering environment, working alongside some of the industry ...

Date Posted: 2026-09-18 Country: United Kingdom Location: Winnersh, Wokingham Position Role Type: Hybrid Principal Training Developer Permanent Benefits £: Competitive salary Contributory Pension Scheme (up to 10.5% company contribution) 6 times salary 'Life Assurance' with pension 25 days holiday (increasing with service) + statutory public holidays, plus … products remain of the highest quality and up to date with latest initiatives and advances in technology. Working closely with the rest of the Principal Training Developers to ensure alignment across quality, output and future direction. Coaching & mentoring training developers and aligning development opportunities where possible to help raise ...

Indra Group UK & Ireland is seeking a Principal IT Developer Lead on a 12-month FTC to steer design, development and ongoing improvement of enterprise applications for the TfL ticketing programme in London. The successful candidate will lead development teams, shape architectural designs, manage the full SDLC ...

seeking an experienced and opinionated Principal Java Engineer to join our high-performing engineering team, working on low latency, high-throughput systems in the payments processing domain. This hybrid role is based in the UK and offers the opportunity to build scalable, real-time services using modern technologies.If ...

their goals. The 3 G’s of RE: “Get Shit Done.” “Get Over Shit.” “Give a Shit.” We are seeking an experienced and opinionated Principal Java Engineer to join our high‐performing engineering team, working on low latency, high‐throughput systems in the payments processing domain. This hybrid role ...

Date Posted: 2026-09-18 Country: United Kingdom Location: Winnersh, Wokingham Position Role Type: Hybrid Principal Training Developer Permanent Benefits: £: Competitive salary Contributory Pension Scheme (up to 10 click apply for full job details ...

Company Description Version 1 has celebrated30 yearsinbusinessand continues to be trusted by global brands to delivertechnology and transformationsolutions that drive customer success. Ourdeepexpertiseenables our customers to navigate the rapidlyevolving technology landscape. We foster strong partnerships ...

team. All of these while having fun truly makes FlexTrade a wonderful place to work. The Team We are looking for an amazing developer to join our team building FlexTrade’s OEMS platform, FlexONE, which is our state-of-the-art, fully integrated Order Management System and Execution Management … customer or product requirements, through implementation, QA and delivery. Each team member works on every part of the system. About You As Senior Web Developer , be part of our FlexONE team and own critical product surfaces across our web and mobile applications. You’ll work end-to-end across ...