14 of 14 Permanent Senior Java Developer Jobs in the City of London

Are you an experienced Java Developer looking for a new challenge and to work for an AI startup with an important mission? 🚀 Senior Java Developer – Revolutionising Data Security 🚀 Location : Hybrid working 1-3 days a week in central London (King’s Cross) Salary : £80-120,000 + bonus + equity We are thrilled to be … wholly protected in terms of data privacy and security, amidst the GenAI boom. This is an incredibly exciting time to join the team as they are growing with multiple Senior Java Developers as well as DevOps Engineers. As a Senior Java Developer, you will: Have 5+ years experience as a Software Engineer Experience developing with … Java, Spring Boot, Microservices, Kafka (or other messaging queues e.g. RabbitMQ), AWS, Docker, Kubernetes A desire to be part of an important mission Be adaptable to working in the buzzing, dynamic fast-paced environment of an early-stage scale-up They are avid promoters of a modern working environment, following agile methodologies with CI/CD. This is an More ❯

Are you an experienced Java Developer looking for a new challenge and to work for an AI startup with an important mission? 🚀 Senior Java Developer – Revolutionising Data Security 🚀 Location : Hybrid working 1-3 days a week in central London (King’s Cross) Salary : £80-120,000 + bonus + equity We are thrilled to be … wholly protected in terms of data privacy and security, amidst the GenAI boom. This is an incredibly exciting time to join the team as they are growing with multiple Senior Java Developers as well as DevOps Engineers. As a Senior Java Developer, you will: Have 5+ years experience as a Software Engineer Experience developing with … Java, Spring Boot, Microservices, Kafka (or other messaging queues e.g. RabbitMQ), AWS, Docker, Kubernetes A desire to be part of an important mission Be adaptable to working in the buzzing, dynamic fast-paced environment of an early-stage scale-up They are avid promoters of a modern working environment, following agile methodologies with CI/CD. This is an More ❯

Senior Full Stack Developer/Engineer (Java Angular) London/WFH to £90k Are you full stack technologist? You could be progressing your career in a hands-on, impactful, Senior Full Stack Developer role, working on a 'tech for good' product that is helping to drive efficiencies for the NHS, the core product is a … highly complex real-time shift rota application, hosted on AWS and available via the web or mobile device (iOS/Android). As a Senior Full Stack Developer you will play a crucial role in re-architecting and enhancing the scheduling platform to a Java and Angular codebase (from Ruby and TypeScript). You'll design and … develop scalable backend Java services and REST APIs and build responsive, user friendly interfaces using Angular (v15+) as well as writing and optimising SQL database queries. You'll input into technical discussions and decision making, as a senior member of a small team where you'll be able to influence best practice and technology choices. Location/WFH More ❯

Senior Java Analyst Developer/Technical Consultant £120,000 Plus Bens Quant Capital is urgently looking for a Java Analyst Developer/Technical Consultant to join our high profile client. Our client is a global trading platform software business. Its products are used globally by most asset managers and pension funds. They are well known … solution(s) for any gaps in functionality, and undertaking development to deliver functionalities (when required). Technical Consultants/Analyst Developers must have: 8+ years’ full-stack experience as Senior Developer around digital applications, software engineering, microservices and cloud. This could include Core Java, Spring Boot, Hibernate/JPA and UI using React, Ember, JavaScript or HTML. More ❯

Senior Java Analyst Developer/Technical Consultant £120,000 Plus Bens Quant Capital is urgently looking for a Java Analyst Developer/Technical Consultant to join our high profile client. Our client is a global trading platform software business. Its products are used globally by most asset managers and pension funds. They are well known … solution(s) for any gaps in functionality, and undertaking development to deliver functionalities (when required). Technical Consultants/Analyst Developers must have: 8+ years’ full-stack experience as Senior Developer around digital applications, software engineering, microservices and cloud. This could include Core Java, Spring Boot, Hibernate/JPA and UI using React, Ember, JavaScript or HTML. More ❯

Senior Java Developer - Remote - up to £95K Halian is currently supporting a multi-national and award-winning organisation who are looking for a talented and experienced Java Developer to join their dynamic team on a permanent basis. This is a great opportunity to create exceptional customer experiences and work on cutting-edge technology! As a … Senior Engineer, you will be responsible for leading the design, development, and maintenance of high-performance core applications. Whilst overseeing multiple teams, you will play a pivotal role in shaping the development strategy, and collaborating with cross-functional teams to ensure the delivery of high-quality solutions. Location: South East/Remote. Salary: up to £95,000 + + … competitive benefits, depending on experience. Requirements: Experience building and shipping large scale applications Knowledge of Java AND OR Kotlin A solid understanding of AWS OR GCP Experience with TDD and pain programming. Experience with third-party libraries and APIs. Experience leading engineering decisions in a complex environment and influencing a wide range of stakeholders. Strong understanding of software architecture More ❯

Senior Java Developer - Remote - up to £95K Halian is currently supporting a multi-national and award-winning organisation who are looking for a talented and experienced Java Developer to join their dynamic team on a permanent basis. This is a great opportunity to create exceptional customer experiences and work on cutting-edge technology! As a … Senior Engineer, you will be responsible for leading the design, development, and maintenance of high-performance core applications. Whilst overseeing multiple teams, you will play a pivotal role in shaping the development strategy, and collaborating with cross-functional teams to ensure the delivery of high-quality solutions. Location: South East/Remote. Salary: up to £95,000 + + … competitive benefits, depending on experience. Requirements: Experience building and shipping large scale applications Knowledge of Java AND OR Kotlin A solid understanding of AWS OR GCP Experience with TDD and pain programming. Experience with third-party libraries and APIs. Experience leading engineering decisions in a complex environment and influencing a wide range of stakeholders. Strong understanding of software architecture More ❯

Social network you want to login/join with: Senior Java Analyst Developer/Technical Consultant, London (City of London) Quant Capital is urgently looking for a Java Analyst Developer/Technical Consultant to join our high-profile client. Our client is a global trading platform software business. Its products are used worldwide by most More ❯

Paragon Alpha are partnered with a well-established Financial Services Firm who are hiring a Senior Java Developer to lead the buildout of a greenfield execution platform for their Equities desk in London. You will be central to the planning and development of this new build. Using your capacity to create high-quality trading algorithms, this new … You will bring hands-on experience in Equities trading, being able to efficiently and effectively go face to face with professionals on the trading floor. Deploying your proficiency in Java for full-stack trading system development. Tech Stack: Java, Kubernetes, SQL This is an opportunity to take on a leading role on my client’s trading floor, working More ❯

Paragon Alpha are partnered with a well-established Financial Services Firm who are hiring a Senior Java Developer to lead the buildout of a greenfield execution platform for their Equities desk in London. You will be central to the planning and development of this new build. Using your capacity to create high-quality trading algorithms, this new … You will bring hands-on experience in Equities trading, being able to efficiently and effectively go face to face with professionals on the trading floor. Deploying your proficiency in Java for full-stack trading system development. Tech Stack: Java, Kubernetes, SQL This is an opportunity to take on a leading role on my client’s trading floor, working 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 to …/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 ❯

Social network you want to login/join with: Senior Java Developer, london (city of london) col-narrow-left Client: Maxwell Bond 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: Global Tech Giant Up to … 115k 2-3x a week in Shoreditch Are you a Senior Java Developer eager to lead the charge in innovation for one of Silicon Valley’s largest tech giants? This is a rare opportunity to join a true Tech Giant as they are building a brand new team at their hub based near Shoreditch as they … a next-gen platform, shaping the future of how the business operates globally. Backed by significant investment, this giant has expanded rapidly in the UK and is seeking multiple Senior Developers to lead new squads focused on greenfield projects. They have a strong engineering culture in the London office, and as their Senior Developer, you’ll work 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 happy to pick … 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 happy to pick … 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 ❯