1 to 25 of 110 Permanent Java Jobs in Central London

Tier Investment bank requires an experienced hands-on Java developer and technical architect with deep expertise in real-time third-party payments, high-throughput zero-downtime systems, and highly available, global-scale internet-facing APIs. This role is central to scaling the TFX technology platform for major retail clients … maintaining software solutions that support business needs. What You'll Do In The Role Act as a senior individual contributor who combines hands-on Java development with architectural leadership, remaining close to implementation and setting the technical standard through design, code-level guidance, and practical problem solving. Design, build ...

preferred supplier to one of our biggest clients, I am seeking a Senior Java Engineer for our retail client in London area. 36- 40 hours 2 - 3 year project Hybrid (2 days per week onsite) The project and responsibilities: To lead the design and development of highly scalable, resilient … tolerant, event-driven, and cloud-native backend architectures. Lead complex engineering initiatives spanning multiple teams, domains, or platforms. Provide deep hands-on expertise across Java, microservices, performance engineering, and distributed systems. Backend Engineering Build and optimize backend services using Java (Java 17+), Spring Boot/Micronaut Design RESTful APIs, asynchronous ...

technologies across the Food & International Food team and, as part of our modernization drive, will be introducing new ones. The sorts of technologies include: Java, Micronaut, PL/SQL ReactJS, Next.js Azure Cloud, Dynatrace (observability) Mule, Kafka, MQ Blue Yonder Dispatcher Essential Experience Significant track record of strategic and innovative ...

scripting. Ideally someone who has contributed to larger software projects or built maintainable platform/backend tooling in a language such as Python, Go, Java, TypeScript, or similar. Comfortable using modern AI-assisted engineering workflows, including agentic coding tools and LLM-based automation. Familiarity with concepts such as MCP servers ...

Java Software Engineer Location: London Working Model: Hybrid (2 days in-office) Base salary: £70,000 - £78,000 + Bonus We are seeking a highly skilled Full Stack Java Engineer to join a newly formed product engineering team focused on building AI-enabled workflow and automation solutions. This team … formed team, offering strong influence over engineering standards, product direction, and architecture Key Responsibilities Full Stack Development Design and build full-stack applications using Java and Angular Develop scalable REST APIs and microservices Build workflow-driven applications on top of existing platforms Write clean, maintainable, and production-ready code Contribute ...

Crossplane, Ansible). Proven ability to architect and deploy containerised systems (Docker, Kubernetes) at scale. Proficiency in one or more modern languages — Go, Python, Java, Ruby, TypeScript. Solid understanding of CI/CD , DevOps automation , and secure cloud operations . Strong communication and stakeholder management skills — able to influence ...

Senior Backend Developer (Java | Financial Markets Platform) Locatio n: London, UK Industr y: Investment Banking Work patter n: Hybrid (2/3 days onsite) About the Role We are looking for a Senior Backend Develop er to join a global engineering team building a cutting-edge financial mark et trading … continuous improvement of development processes and technical road map. Tech Stack & Requirements Core Skills 7+ years of experience in backend development. Strong expertise in Java (Core Java, Spring Framework, Spring Boot, RxJava). Experience building REST APIs & reactive Web services. Strong knowledge of microservices architecture. Cloud & DevOps Hands-on experience ...

Principal Java Developer/Consultant (Java Spring Boot AWS) London/WFH to £120k Are you an experienced Java Developer, with technical project leadership and client facing skills? You could be progressing your career at a global technology consultancy. What's in it for you: Salary to £120k Pension, Life … your family, including mental health Travel Insurance Charitable giving Gym membership for you and your family Flexible holiday scheme Your role: As a Principal Java Developer/Consultant you will lead client projects, often long term technical transformations, designing, developing and delivering a range of projects for clients, mainly within ...

depending on experience, plus bonus & benefits Clearance Eligibility for SC Clearance An experienced Senior Solution Architect with a strong software engineering background (Java/.NET) and eligibility for SC clearance, specialising in the design and delivery of scalable, cloud native solutions using microservices and API-driven architectures. Key Responsibilities ...

with Terraform, alongside CI/CD and Automation work Background in Software Engineering, comfortable coding with an OO language (ideally Python, Go or Java) Previous experience working in Finance or Regulated environments This position can offer £650-750 p/day, inside IR35, for an initial 6 month contract ...

collaboration. What You’ll Do as a Cloud Engineer: Designing and building modern platforms from prototype to production. Developing in languages like Python, Java, JavaScript or .NET. Using CI/CD tools (Jenkins, Bitbucket, Bamboo, TeamCity) to ship high‐quality software faster. Applying automated testing and code‐quality tools ...

Scrum teams across both manual testing and automation. Exposure to CI/CD pipelines, DevOps delivery practices, and Azure Test Plans. Strong experience using Java or Groovy in a QA capacity. Experience with Pega, including scenario testing preferred but not required. Strong analytical thinking, clear communication, collaboration skills ...

Kinesis Data Streams API Gateway DynamoDB and S3 Experience testing event-driven and serverless architectures Test Automation & Tools Experience with: Automation frameworks (Jest framework, Java/Springboot, or similar) API testing tools (Postman, REST clients) Ability to: Create automated test suites Validate JSON-based inputs/outputs for APIs ...

Developer Associate, or DevOps Engineer are highly desirable Desirable Experience Any exposure to the following would be advantageous: React or modern front-end frameworks Java, Go, C#, Rust, or other strongly typed languages Internal platform engineering or developer platform ownership Event-driven architectures using EventBridge, Kinesis, Kafka ...

security control Security & Resilience: Deep understanding of threat modelling, authentication patterns, and observability Modern Development: Familiarity with languages such as Ruby, Python, or Java, alongside CI/CD, TDD, and containerisation Communication: Exceptional ability to simplify complex topics and build consensus across diverse groups Desirable Attributes Experience with enterprise ...

software engineering standard methodologies, Promoter of DevOps: you build it, you run it. Tech Stack M&S uses a variety of technologies including; Java, Spring, SpringBOOT, Micronaut React, Next.js, Typescript, Angular Azure Cloud, Kubernetes, Dynatrace (observability) SQL Server, MongoDB Ignite, Redis Everyone’s Welcome We are ambitious about the future ...

role - forward deployed engineering, technical consulting, solutions architecture, or engineering leadership with external stakeholders Strong proficiency in modern software engineering stacks - Python, TypeScript, or Java - with comfort across cloud platforms (AWS, Azure, GCP) Experience driving engineering process change or transformation within organisations - you have helped teams adopt new tools, practices ...

/or multi-cloud set up is essential. Demonstrable basic development or scripting experience in one or more of the following languages: Bash, Python, Java, C#, Rust, Excel VBA Solid Linux/network stack knowledge, as well as optimization/tuning Nice to haves Containerization (Docker/Kubernetes ...

automated testing. You'll also bring: Proven hands-on experience in manual testing, supported by automation testing experience. Experience testing large enterprise systems, including Java and Oracle web applications. Experience testing Windows 11 and associated applications within an Evergreen environment. Knowledge of cloud and infrastructure environments (Azure ...

microservices, event-driven architecture Cloud & Infrastructure Expertise in AWS, Azure, or GCP Infrastructure as Code (Terraform, ARM, CloudFormation) Programming & Development Strong coding background (e.g., Java, C#, Python, Node.js) Understanding of software development lifecycle (SDLC) Data & Storage SQL and NoSQL databases (e.g., PostgreSQL, MongoDB) Desirable skills: BPSS/NPPV ...

The ideal candidate will be responsible for developing high-quality applications. They will also be responsible for designing and implementing testable and scalable code. Responsibilities Develop quality software and web applications Analyze and maintain existing ...

role of Java Software Engineer involves designing, developing, and maintaining robust Java-based applications. This position is ideal for those with a strong technical background and a passion for delivering high-quality solutions within the business services industry. Client Details The hiring organisation is a well-established and respected entity … medium-sized company, they focus on delivering innovative technology solutions to their clients, ensuring efficiency and excellence in every project. Description Develop and maintain Java-based software applications to meet client requirements. Collaborate with cross-functional teams to design and implement efficient technical solutions. Perform code reviews to ensure high ...

skills in Python , Bash, or PowerShell Familiarity with observability tooling and SRE principles SQL and database knowledge (MySQL, Oracle, or similar) Experience supporting .NET, Java, or microservices applications It would be great if you had: ITIL v3/v4 certification or ServiceNow experience Knowledge of Swift payment flows or financial ...

Client: Largest American Credit Card Company Location: Burgess Hill 3 days/week Years of Exp: 6-9 years Skills: Go, Java, Git, REST, Jenkins, NoSQL, Postgres/ql £40-£50/hr Inside IR35 Visa sponsorship is not available. We're looking for an enthusiastic, diligent Golang Software Engineer ...

Market data and financial instruments Experience supporting Front Office or trading desks (highly desirable) 🛠️ Technical Skills Advanced programming skills in: Python (essential) C++/Java/C# (strongly preferred) Experience with: Object-oriented design and software engineering best practices Numerical methods (Monte Carlo, PDEs, stochastic calculus) Data structures, algorithms ...