151 to 175 of 545 Java Jobs in London

their goals. The 3 G’s of RE: “Get Shit Done.” “Get Over Shit.” “Give a Shit.” We are seeking an experienced and opinionated Java Developer to join our high-performing engineering team, working on l ow latency , high-throughput systems in the payments processing domain. This hybrid role … offers the opportunity to build scalable, real-time services using modern technologies. If you’re passionate about performance, have strong Core Java and SpringBoot expertise, and thrive in a collaborative yet opinionated engineering culture, we want to hear from you. Key Responsibilities : Design, develop, and optimize low-latency, high-throughput ...

identity, sexual orientation, race, ethnicity, disabled or veteran status, or any other characteristic protected by law. Job Description: Are you a hands-on Senior Java Engineer with a passion for AI, high-performance systems, and large-scale data platforms? We’re looking for an experienced engineer to help build … while shaping the adoption of AI-powered capabilities across internal platforms and client-facing products. What you’ll do Design, build, and maintain complex Java and Python applications Develop and embed AI-powered features using LLMs, LangChain/LangGraph, and agentic AI frameworks Architect scalable, distributed services for performance-critical ...

Contract Role - Senior Java Full Stack Developer – London/Hybrid – 10 months initial – Inside IR35 Role Overview: Job Title: Senior Java Full Stack Developer Location: Hybrid – 3- 4 days onsite per week in London Contract Type: Contract Duration: 10 months initial Rate: £675.11 per day PAYE … Umbrella Sector: Banking We are looking for a Java Full Stack contractor with strong engineering experience across backend, frontend, and delivery automation, with a particular emphasis on CI/CD automation and system integration . This role suits someone who is hands-on in Java full stack development ...

Staff Engineer - Java 17 London, UK (Hybrid) Permanent Up to £85,000 + benefits About the Role This is a chance to join a global technology leader, working alongside one of the UK's most recognisable retail brand, on a large-scale transformation of its digital and engineering ecosystem. … technical authority, combining deep hands-on delivery with architecture ownership and engineering leadership. Build and evolve Back End services using Java 17 and Spring Boot Design and implement event-driven architectures using Kafka, including schema evolution, idempotent consumers, and resilient messaging patterns Contribute to system design and architectural decisions across ...

Backend Java Developer + 6 month initial contrac+t + Fully remote - occasional office visit + SC Cleared + £530 per day Inside IR35 Key Skills: + Spring Framework + Docker/Kubernetes + SC Cleared Java Software Engineer We are looking for a skilled Java Software Engineer to join … development team and help build high-quality, scalable applications. Key Skills & Experience: Strong commercial experience with Java development. Hands-on experience with the Spring Framework (or equivalent enterprise frameworks). Solid understanding of software design patterns and the ability to apply them appropriately. Excellent knowledge of modern software development processes ...

Windows Server 2k8/2k16/2k19. Infrastructure: VMWare ESX v6, Nginx, Apache Tomcat, Elasticsearch. Automation: Bash scripting, CI/CD pipelines. Desirable: Java SE 8, Python, Ansible, Terraform, AWS, IBM Initiate, GIS tools. Interested? Please apply with your updated CV and clearance details. ...

collaborate directly with traders and stakeholders to design and build AI-driven platforms, owning projects end-to-end from concept to production. Stack: Java OR C#, Kubernetes, Kafka, React, LLMs The role requires strong experience in a back-end language, solid SQL skills, and a good understanding of AI/ ...

track record leading across multiple engineering teams and specialties. Experience with Event-driven architectures. Strong technical breadth across C#, .NET, SQL, Kafka and Azure (Java is a plus). Agile Leadership Desirable The role has no direct reports, but established leadership skills are desirable Distributed systems and real-time data ...

track record leading across multiple engineering teams and specialties. Experience with Event-driven architectures. Strong technical breadth across C#, .NET, SQL, Kafka and Azure (Java is a plus). Agile Leadership Desirable The role has no direct reports, but established leadership skills are desirable Distributed systems and real-time data ...

driven products Focus on scalability, performance, and reliability Work closely with Product and Data Science Contribute to architecture and technical improvements Tech Stack:- Java, Python, AWS, MongoDB, MySQL, Kubernetes, Git What they're looking for: 5+ years' backend or server-side engineering experience Strong system design and production experience Autonomous ...

financial services Strong understanding of equities trading, including OMS/EMS and market connectivity Experience with system design and low-latency, high-performance applications (Java/C++) Familiarity with SDLC and CI/CD tools (e.g. JIRA, Confluence, Git, Jenkins) Strong analytical, problem-solving, and stakeholder management skills Excellent written ...

/CD experience using Jenkins, Concourse or GitHub Actions Experience building API integrations between enterprise systems Strong scripting or software development skills in Python, Java/Groovy, JavaScript or Node.js Experience working with AWS services and cloud-based media platforms Desirable Experience with serverless architectures including AWS Lambda ...

Linux/Unix knowledge and troubleshooting capabilities Experience working with modern cloud technologies and data platforms Programming experience with languages such as Python, C#, Java, or similar Previous exposure to Front Office environments within financial services, trading, or capital markets Strong stakeholder management and communication skills Ability to operate effectively ...

modern software architecture and cloud platforms Hands-on experience with Generative AI, LLMs, AI agents, or agentic workflows Strong coding skills in Python, TypeScript, Java, or similar languages Experience leading technical delivery and mentoring engineers A passion for applying AI to solve complex business problems Technical Environment Examples of technologies ...

8+ years in Solution Architecture, with a strong focus on e-commerce platforms or API/middleware ecosystems. Technical Stack: Advanced knowledge of Node.js, Java (Spring Boot), and PostgreSQL, with the ability to review and assess vendor code in detail. Integration Expertise: Strong understanding of API management patterns, webhook-based ...

deep application support experience. Beyond that, we're not looking for a checklist of tools: working knowledge of Docker, Terraform, MongoDB, Java, or SQL Server is a bonus, not a requirement, and general comfort with a scripting/OOP language plus Agile/DevOps ways of working will serve ...

Partner closely with Product to challenge and sharpen requirements before they hit the backlog What we're looking for Strong TypeScript/JavaScript and Java/Kotlin NestJS, React, PostgreSQL or MongoDB (Not all required) Hands-on with AWS, Docker, Terraform, and modern CI/CD A genuine, practical understanding ...

focus on speed, scalability, and reliability. Strong product-oriented mindset, with end-to-end ownership of features and close collaboration across teams. Proficiency in Java (preferred) or solid experience with similar backend programming languages. Familiarity with messaging systems such as Kafka or RabbitMQ, and strong knowledge of relational databases ...

Skills Experience: Solution Architecture with a clear focus on E-commerce platforms or API/Middleware ecosystems. Technical Stack: Expert-level knowledge of Node.js, Java (Spring Boot), and PostgreSQL - able to read and critique vendor code, not just high-level diagrams. Integration Expert: Deep proficiency in API management patterns, Webhook ...

Skills Experience: Solution Architecture with a clear focus on E-commerce platforms or API/Middleware ecosystems. Technical Stack: Expert-level knowledge of Node.js, Java (Spring Boot), and PostgreSQL - able to read and critique vendor code, not just high-level diagrams. Integration Expert: Deep proficiency in API management patterns, Webhook ...

data manipulation, querying, and optimizatio n.Expertise in at least one programming language commonly used in data engineering, preferably Python. Scala or Java is a plu s.Solid understanding of data warehousing concepts, data modeling techniques (dimensional modeling, Kimball, Inmon), and ETL/ELT processe s.Experience with version control systems (e.g. ...

optimisation. Writing clean, maintainable and well-tested code. Nice to have Experience in any of the following would be beneficial, but isn't essential: Java development. Docker or Kubernetes. GraphQL. CI/CD tooling such as GitHub Actions. Test-Driven Development (TDD). Experience working with distributed or cloud-based ...

optimisation. Writing clean, maintainable and well-tested code. Nice to have Experience in any of the following would be beneficial, but isn't essential: Java development. Docker or Kubernetes. GraphQL. CI/CD tooling such as GitHub Actions. Test-Driven Development (TDD). Experience working with distributed or cloud-based ...

Technical Leadership : Mentor and guide a team of UI engineers, ensuring best practices in coding, testing, and performance optimization. · Integration : Ensure smooth integration with Java-based backend services and real-time data streams. · Performance Scalability : Optimize UI for low-latency, high-frequency trading environments. · Innovation : Stay ahead of emerging technologies ...

proposition, identify customers’ pain points and explain business value to develop a trusted advisor skillset. Proficiency in a core programming language such as Python, Java, or Scala. Knowledgeable in a core Big Data Analytics domain with exposure to advanced proofs‐of‐concept and understanding of a major public cloud platform ...