151 to 175 of 449 Java Jobs in London

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 ...

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 ...

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 ...

learn more, we do want to hear from you! You get things done You have experience working with large scale distributed systems You have Java knowledge You have experience working with relational and non-relational databases, query optimisation and designing schemas You have a strong product mindset and passion ...

transactional environments (payments, banking or similar). Experience designing and optimising databases and data models for high throughput and correctness. Experience with JVM platform (Java/Kotlin/Spring Boot). Additional Information For everyone, everywhere. We're people building money without borders — without judgement or prejudice, too. We believe ...

those listed below and are eager to learn more we do want to hear from you! Strong proficiency in backend programming languages like Java, Python or Go. Passion for building at scale – You've worked on high-throughput systems and know what it takes to keep services fast and reliable ...

both new and existing customers, making them fairer, more intuitive, attractive and more scalable. Qualifications What does it take: 5+ years of experience in Java or Kotlin (or other JVM based language) Strong experience with Spring framework, relational databases, distributed and concurrent systems (Kafka) Close collaboration with product managers, data ...

desire to build truly exceptional products, not just solve immediate challenges. You have a strong background working in either Python, Golang or Java, having used one of these programming languages to build production level software. You have experience working with Kubernetes or other container orchestration systems. You have experience with ...

implement, and maintain automated test suites for APIs and backend services using Karate, Cucumber with RestAssured. Write clean, maintainable, and reliable automated tests in Java that provide fast, accurate feedback to the team. Validate functional and non-functional behaviour of search and retrieval services, including error handling, reliability, and service ...

Description 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 ...

About The Role FDM is a global business and technology consultancy seeking a Full Stack Java Developer to work for our client within the Fintech sector. This is initially a 6 month contract with the potential to extend and will be a hybrid role that will be based in London. … client is seeking to onboard a Java engineer with predominantly full stack experience and a desire to join an established agile squad, to deliver new requirements and fixes for client projects. This individual will take on complex stories required for implementing the international Processing Engine (IPE) application to meet client ...

delivery, and scalable digital services that genuinely make a difference. Role Overview We are seeking an experienced Senior Backend Developer with strong expertise in Java and Spring Boot to design, develop, and maintain scalable Back End systems. The ideal candidate combines solid software engineering fundamentals with the ability to effectively … coding assistants to accelerate delivery, improve code quality, and enhance engineering productivity. Key Responsibilities Design, develop, and maintain scalable Back End services using Java (8/11/17+) and Spring Boot Build, optimize, and maintain RESTful APIs and microservices-based applications Collaborate with Front End, DevOps, product ...

delivery, and scalable digital services that genuinely make a difference. Role Overview We are seeking an experienced Senior Backend Developer with strong expertise in Java and Spring Boot to design, develop, and maintain scalable Back End systems. The ideal candidate combines solid software engineering fundamentals with the ability to effectively … coding assistants to accelerate delivery, improve code quality, and enhance engineering productivity. Key Responsibilities Design, develop, and maintain scalable Back End services using Java (8/11/17+) and Spring Boot Build, optimize, and maintain RESTful APIs and microservices-based applications Collaborate with Front End, DevOps, product ...

Description About The Role FDM is a global business and technology consultancy seeking a Full Stack Java Developer to work for our client within the Fintech sector. This is initially a 6 month contract with the potential to extend and will be a hybrid role that will be based … London. Our client is seeking to onboard a Java engineer with predominantly full stack experience and a desire to join an established agile squad, to deliver new requirements and fixes for client projects. This individual will take on complex stories required for implementing the international Processing Engine (IPE) application ...

data processing with highly responsive front-end interfaces, all hosted in a modern cloud environment. What You Will Do Build scalable applications using Core Java, multithreading, and ReactJS to handle heavy datasets efficiently. Engineer cloud-native solutions by designing, maintaining, and deploying applications leveraging Kubernetes and Amazon AWS. Design … business problems. What You Bring to the Table 5 to 7 years of experience in full-stack software engineering. Deep backend expertise in Core Java, specifically with multithreading, complex algorithms, and data structures. Frontend proficiency building responsive UIs with ReactJS, JavaScript/TypeScript, and state management tools (Redux or Context ...

pipelines for large-scale transactional or financial data. Fluency in Scala (Scio/Dataflow) and comfort with cloud-native development on GCP. (Experience with Java, Python, and BigQuery is a plus). Strong communication skills to collaborate with Finance, Product, and Engineering teams to ship auditable, reliable systems that meet ...

large-scale transactional or financial data. Fluency in Scala (Scio/Dataflow) and comfort with cloud-native development on GCP . (Experience with Java, Python , and BigQuery is a plus). Strong communication skills to collaborate with Finance, Product, and Engineering teams to ship auditable, reliable systems that meet regulatory ...

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 ...

integration Strong distributed systems and troubleshooting experience Experience in real-time/high-throughput environments Strong SQL and backend/scripting skills (C#, Python, Java, C++) Customer-facing delivery experience Capital markets experience is a bonus This is a high-impact integration role focused on ownership, solution design, and client ...

post‐trade analytics; Kafka and dbt exposure a plus. Hands‐on coding in Python, SQL, and PySpark for pipelines and production analytics/ML; Java/C++ or kdb+/q a bonus. MLOps in a controlled environment: MLflow, registry/versioning, CI/CD (GitLab/Jenkins), drift/ ...

. Familiarity with container orchestration, deployment models, modern CI/CD pipelines. BS/MS in Computer Science or a related field. Familiarity with Java, Golang, No‐SQL databases, Apache Kafka, Redis, and authN/authZ concepts. Proven experience applying AI technologies to enhance decision‐making, streamline workflows, and drive ...