1 to 25 of 46 Permanent Principal Java Developer Jobs in the UK

Principal Java Developer – Hybrid Working (Very flexible) – Scientific Sector REF 1042 A successful not-for-profit company and educational charity, with an enviable reputation for collaborative scientific development. They develop meaningful science and software that supports the delivery of life-enhancing solutions including the development of safe chemicals to market including drugs and cosmetics as well as … Ensuring that the software development life cycle is followed in accordance with best practices, standards and policies. Coaching and mentoring Software Delivery team members and actively contributing to the Developer community of practice. Having a strong focus on learning and continuous improvement, at both the micro and macro levels. Appropriately challenging existing practices. Identify future state opportunities and keeping … engineering, software design or database design and architecture. Good knowledge of software development life cycle in an Agile environment. Proven experience in web-application development using the technologies below: Java application frameworks such as Spring. Angular, JavaScript, CSS3 and HTML5. Relational database. Experience of working in continuous integration and continuous deployment. Experience of working with code repositories such as More ❯

MCS Group is proud to be working with an innovative, rapidly scaling technology organisation whose products are used globally across many industries in their search for a Principal Java Developer. The Principal Java Engineer will join an existing, scaling software engineering team to take on responsibility for the a specific function of their core software platform … in a fast-paced role which will encompass development, architecture and the mentoring and coaching of junior software engineers This is a fantastic opportunity for an experienced Principal Java Engineer to join a small, yet hugely successful team headed up an incredibly passionate Head of Engineering. You'll get the chance to work on a brilliant product and … great (fast-tracked) career growth potential in a business which has secured serious investment in the last 18 months to scale significantly in 2025 and beyond. The Role: The Principal Engineer will lead the design and architecture of complex, high-scale applications using Java and AWS . Yiu'll set engineering best practices and drive adoption of cloud More ❯

Social network you want to login/join with: Principal Java Developer, Newcastle-upon-Tyne, Tyne and Wear Location: Newcastle-upon-Tyne, Tyne and Wear, United Kingdom Job Category: Other EU work permit required: Yes Job Views: 2 Posted: 26.06.2025 Expiry Date: 10.08.2025 Job Description: Principal Java Developer/Engineer 45 days holiday Fully … to join an expanding development team for a global fintech client? There has been significant investment into growing the engineering team, and this is an amazing opportunity for a Principal Java Developer to be part of something special! About the Principal Java Developer role: Design and develop backend, service, and portal systems as a … Principal Java Developer . Engage with various languages, frameworks, libraries, and services, utilizing state-of-the-art techniques like Behavioural Driven Development and CI/CD. Work within a focused, empowered team that values outcomes over outputs, aiming for impactful results. Duties and Responsibilities Understand partner needs and deliver high-quality, innovative solutions that add value. Enhance More ❯

Social network you want to login/join with: Principal Java Developer, Kingston upon Hull, East Yorkshire Client: Location: Kingston upon Hull, East Yorkshire, United Kingdom Job Category: Other EU work permit required: Yes Job Views: 2 Posted: 26.06.2025 Expiry Date: 10.08.2025 Job Description: Principal Java Developer/Engineer 45 days holiday Fully Remote … to join an expanding development team for a global fintech client? There has been significant investment into growing the engineering team, and this is an amazing opportunity for a Principal Java Developer to be part of something special! About the Principal Java Developer role: As a Principal Java Developer, you will More ❯

Social network you want to login/join with: Principal Java Developer, Stoke-on-Trent Location: Stoke-on-Trent, United Kingdom Job Category: Other EU work permit required: Yes Job Views: 2 Posted: 26.06.2025 Expiry Date: 10.08.2025 Job Description: Principal Java Developer/Engineer 45 days holiday Fully Remote Are you looking to join … an expanding development team for a global fintech client? There has been significant investment into growing the engineering team, and this is an amazing opportunity for a Principal Java Developer to be part of something special! About the Principal Java Developer role: As a Principal Java Developer, you will be responsible More ❯

Principal Java Developer – Major Financial Institution London/Hybrid | Contract | £700-£800 inside IR35 (gross umbrella rate) We’re working with a major financial institution looking to scale out its engineering function with a Principal Java Developer to lead critical systems work. This is a hands-on Principal role requiring an experienced engineer … with a finance background to come in and stabilise an existing platform. This Java-based stabilisation/rescue project is expected to last at least a year, but the successful candidate will then be involved in the replatforming project. The replatforming project will be C#, and whilst you don't need C# experience to be successful, you should be … technical decisions across squads. What they’re looking for: Proven experience supporting large-scale, business-critical systems in the finance industry (all areas of finance considered) Strong background in Java and ideally C# Some front-end exposure in Angular - this is mandatory, but doesn't need to be recent or extensive Comfortable working with legacy systems and large enterprise More ❯

Principal Java Developer – Major Financial Institution London/Hybrid | Contract | £700-£800 inside IR35 (gross umbrella rate) We’re working with a major financial institution looking to scale out its engineering function with a Principal Java Developer to lead critical systems work. This is a hands-on Principal role requiring an experienced engineer … with a finance background to come in and stabilise an existing platform. This Java-based stabilisation/rescue project is expected to last at least a year, but the successful candidate will then be involved in the replatforming project. The replatforming project will be C#, and whilst you don't need C# experience to be successful, you should be … technical decisions across squads. What they’re looking for: Proven experience supporting large-scale, business-critical systems in the finance industry (all areas of finance considered) Strong background in Java and ideally C# Some front-end exposure in Angular - this is mandatory, but doesn't need to be recent or extensive Comfortable working with legacy systems and large enterprise More ❯

Social network you want to login/join with: Principal Java Developer, Swindon, Wiltshire Client: Location: Swindon, Wiltshire, United Kingdom Job Category: Other - EU work permit required: Yes Job Views: 2 Posted: 26.06.2025 Expiry Date: 10.08.2025 Job Description: Principal Java Developer/Engineer 45 days holiday Fully Remote Are you looking to join an … expanding development team for a global fintech client? There has been significant investment into growing the engineering team, and this is an amazing opportunity for a Principal Java Developer to be part of something special! About the Principal Java Developer role: As a Principal Java Developer, you will be responsible for More ❯

Social network you want to login/join with: Principal Java Developer, Warrington, Cheshire Client: Location: Job Category: Other - EU work permit required: Yes Job Views: 2 Posted: 26.06.2025 Expiry Date: 10.08.2025 Job Description: Principal Java Developer/Engineer 45 days holiday Fully Remote Are you looking to join an expanding development team for … a global fintech client? There has been significant investment into growing the engineering team, and this is an amazing opportunity for a Principal Java Developer to be a part of something special! About the Principal Java Developer role: As a Principal Java Developer, you will be responsible for designing and developing More ❯

Social network you want to login/join with: Principal Java Developer, Sheffield, South Yorkshire col-narrow-left Client: Location: Sheffield, South Yorkshire, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 2 Posted: 26.06.2025 Expiry Date: 10.08.2025 col-wide Job Description: Principal Java Developer/Engineer … to join an expanding development team for a global fintech client? There has been significant investment into growing the engineering team, and this is an amazing opportunity for a Principal Java Developer to be a part of something special! About the Principal Java Developer role: As a Principal Java Developer, you More ❯

Location: bolton, greater manchester, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 2 Posted: 26.06.2025 Expiry Date: 10.08.2025 col-wide Job Description: Principal Java Developer/Engineer 45 days holiday Fully Remote Are you looking to join an expanding development team for a global fintech client? There has been significant … investment into growing the engineering team and this is an amazing opportunity for a Principal Java Developer to be a part of something special! About the Principal Java Developer role: As a Principal Java Developer, you will be responsible for the design and development of backend, service, and portal systems. You More ❯

Client: Location: preston, lancashire, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 2 Posted: 26.06.2025 Expiry Date: 10.08.2025 col-wide Job Description: Principal Java Developer/Engineer 45 days holiday Fully Remote Are you looking to join an expanding development team for a global fintech client? There has been significant … investment into growing the engineering team, and this is an amazing opportunity for a Principal Java Developer to be a part of something special! About the Principal Java Developer role: As a Principal Java Developer, you will be responsible for the design and development of backend, service, and portal systems. You More ❯

Client: Location: oxford district, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 2 Posted: 26.06.2025 Expiry Date: 10.08.2025 col-wide Job Description: Principal Java Developer/Engineer 45 days holiday Fully Remote Are you looking to join an expanding development team for a global fintech client? There has been significant … investment into growing the engineering team, and this is an amazing opportunity for a Principal Java Developer to be a part of something special! About the Principal Java Developer role: As a Principal Java Developer, you will be responsible for the design and development of backend, service, and portal systems. You More ❯

Social network you want to login/join with: Contract - Senior/Principal Java Developer, london (city of london) col-narrow-left Client: Source Technology Location: london (city of london), United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 3 Posted: 16.06.2025 Expiry Date: 31.07.2025 col-wide Job Description: We’re … working with a major financial institution looking to scale out its engineering function with a Principal Java Developer to lead critical systems work. This is a hands-on role within a high-performing team modernising legacy platforms, improving availability, and delivering new functionality across the estate. You’ll be working closely with infrastructure, architecture, and infosec teams …/CD improvements, REST API design, and steering collaborative technical decisions across squads. What they’re looking for: Proven experience supporting large-scale, business-critical systems Strong background in Java and ideally C# Some front end exposure (Angular ideally but other frameworks considered). Note the role is back end focused. Comfortable working with legacy systems and large enterprise More ❯

Principal Java Developer/Engineer £80,000 - £88,000 45 days holiday Fully Remote Are you looking to join an expanding development team for a global fintech client? There has been significant investment into growing the engineering team and this an amazing opportunity for a Principal Java Developer to be a part of something … special! About the Principal Java Developer role: As a Principal Java Developer, you will be responsible for the design and development of backend, service, and portal systems. As part of a dynamic and exciting development centre, you will engage with a variety of languages, frameworks, libraries, and services, while utilising state-of-the-art … or Windows development, including database design and development, as well as strong web client programming skills, including HTML, JavaScript, and CSS. Experience in server-side product development. Expertise in Java Experience with Design Patterns, Refactoring, OO Design, and related areas. Experience with HTML, CSS, JavaScript, XML/XSLT, SQL, database design, message-oriented-middleware, caching, and systems integration. Proven More ❯

looking to join an expanding development team for a global fintech client? There has been significant investment into growing the engineering team and this an amazing opportunity for a Principal Java Developer to be a part of something special! About the Principal Java Developer role: As a Principal Java Developer, you … tasks - adjusting priorities when appropriate. Qualifications needed for the role 8-10 years in a Software Engineering position. BS or MS in Computer Science or related field. Expertise in Java Experience with Design Patterns, Refactoring, OO Design, and related areas. Proven experience translating Business Requirements into solutions. #J-18808-Ljbffr More ❯

looking to join an expanding development team for a global fintech client? There has been significant investment into growing the engineering team and this an amazing opportunity for a Principal Java Developer to be a part of something special! About the Principal Java Developer role: As a Principal Java Developer, you … tasks - adjusting priorities when appropriate. Qualifications needed for the role 8-10 years in a Software Engineering position. BS or MS in Computer Science or related field. Expertise in Java Experience with Design Patterns, Refactoring, OO Design, and related areas. Proven experience translating Business Requirements into solutions. #J-18808-Ljbffr More ❯

looking to join an expanding development team for a global fintech client? There has been significant investment into growing the engineering team and this an amazing opportunity for a Principal Java Developer to be a part of something special! About the Principal Java Developer role: As a Principal Java Developer, you … tasks - adjusting priorities when appropriate. Qualifications needed for the role 8-10 years in a Software Engineering position. BS or MS in Computer Science or related field. Expertise in Java Experience with Design Patterns, Refactoring, OO Design, and related areas. Proven experience translating Business Requirements into solutions. #J-18808-Ljbffr More ❯

looking to join an expanding development team for a global fintech client? There has been significant investment into growing the engineering team and this an amazing opportunity for a Principal Java Developer to be a part of something special! About the Principal Java Developer role: As a Principal Java Developer, you … tasks - adjusting priorities when appropriate. Qualifications needed for the role 8-10 years in a Software Engineering position. BS or MS in Computer Science or related field. Expertise in Java Experience with Design Patterns, Refactoring, OO Design, and related areas. Proven experience translating Business Requirements into solutions. #J-18808-Ljbffr More ❯

looking to join an expanding development team for a global fintech client? There has been significant investment into growing the engineering team and this an amazing opportunity for a Principal Java Developer to be a part of something special! About the Principal Java Developer role: As a Principal Java Developer, you … tasks - adjusting priorities when appropriate. Qualifications needed for the role 8-10 years in a Software Engineering position. BS or MS in Computer Science or related field. Expertise in Java Experience with Design Patterns, Refactoring, OO Design, and related areas. Proven experience translating Business Requirements into solutions. #J-18808-Ljbffr More ❯

looking to join an expanding development team for a global fintech client? There has been significant investment into growing the engineering team and this an amazing opportunity for a Principal Java Developer to be a part of something special! About the Principal Java Developer role: As a Principal Java Developer, you … tasks - adjusting priorities when appropriate. Qualifications needed for the role 8-10 years in a Software Engineering position. BS or MS in Computer Science or related field. Expertise in Java Experience with Design Patterns, Refactoring, OO Design, and related areas. Proven experience translating Business Requirements into solutions. #J-18808-Ljbffr More ❯

looking to join an expanding development team for a global fintech client? There has been significant investment into growing the engineering team and this an amazing opportunity for a Principal Java Developer to be a part of something special! About the Principal Java Developer role: As a Principal Java Developer, you … tasks - adjusting priorities when appropriate. Qualifications needed for the role 8-10 years in a Software Engineering position. BS or MS in Computer Science or related field. Expertise in Java Experience with Design Patterns, Refactoring, OO Design, and related areas. Proven experience translating Business Requirements into solutions. #J-18808-Ljbffr More ❯

looking to join an expanding development team for a global fintech client? There has been significant investment into growing the engineering team and this an amazing opportunity for a Principal Java Developer to be a part of something special! About the Principal Java Developer role: As a Principal Java Developer, you … tasks - adjusting priorities when appropriate. Qualifications needed for the role 8-10 years in a Software Engineering position. BS or MS in Computer Science or related field. Expertise in Java Experience with Design Patterns, Refactoring, OO Design, and related areas. Proven experience translating Business Requirements into solutions. #J-18808-Ljbffr More ❯

looking to join an expanding development team for a global fintech client? There has been significant investment into growing the engineering team and this an amazing opportunity for a Principal Java Developer to be a part of something special! About the Principal Java Developer role: As a Principal Java Developer, you … tasks - adjusting priorities when appropriate. Qualifications needed for the role 8-10 years in a Software Engineering position. BS or MS in Computer Science or related field. Expertise in Java Experience with Design Patterns, Refactoring, OO Design, and related areas. Proven experience translating Business Requirements into solutions. #J-18808-Ljbffr More ❯

looking to join an expanding development team for a global fintech client? There has been significant investment into growing the engineering team and this an amazing opportunity for a Principal Java Developer to be a part of something special! About the Principal Java Developer role: As a Principal Java Developer, you … tasks - adjusting priorities when appropriate. Qualifications needed for the role 8-10 years in a Software Engineering position. BS or MS in Computer Science or related field. Expertise in Java Experience with Design Patterns, Refactoring, OO Design, and related areas. Proven experience translating Business Requirements into solutions. #J-18808-Ljbffr More ❯