1,351 to 1,375 of 2,301 Java Jobs in London

Principal Full Stack Software Engineer

Hiring Organisation
Profile 29
Location
South East London, London, United Kingdom
Employment Type
Permanent
Salary
£90,000
successful candidate will be writing code as well as setting direction - this is not a purely architectural or management position. Current delivery is a Java/Spring Boot microservices platform on AWS EKS, with a Next.js frontend and Camunda-based process orchestration. Essential Experience level: 10+ years minimum, principal … staff grade equivalent. Backend and cloud: Java 17 or 21, at expert level - modern language features Spring Boot in depth: security, transaction management, async/reactive Microservices architecture design - has designed services from scratch Kubernetes and Docker in production (not local development use) AWS, hands-on: EKS, Lambda ...

Automation Test Engineer - Selenium Java Python- Wimbledon

Hiring Organisation
Quant Capital
Location
London, UK
Employment Type
Full-time
Automation Test Engineer – Selenium Java PythonUp to 55k + Large Pension, Bonus and Flex Home WorkingQuant Capital is urgently looking for an Automation Test Engineer to join our high profile client. Our client is well known Fintech50 client who produces software disrupting the wealth management market. Currently they stand … Tech DegreeREST APIExtensive experience in automated software test development using latest open-source tools. Excellent working knowledge on Selenium Webdriver with Python or Java (Ability to code)Experienced in developing test automation frameworks from scratch using frameworks like Pytest, TestNG or Junit. Experience in developing automated test scripts for Restful ...

Software Developer Backend (SFIA5)

Location
City Of London, England, United Kingdom
improvement environments doing multiple releases every week Team leadership and mentoring experience Integrity/honesty Coding and testing Demonstrable experience designing, coding and debugging Java based systems Good skills in web front end technologies such as HTML, CSS, Bootstrap Java 8 Spring Boot Docker Kubernetes Atlassian Build tools: Maven, Gradle ...

Automation Engineer – Back End, Security Cleared

Location
Greater London, England, United Kingdom
life cycle Hands-on experience building test automation frameworks from scratch 3+ years of experience with scripting and programming languages such as JavaScript and Java Experience with API testing, ideally using RestAssured or SoapUI Experience implementing Contract Testing solutions Familiarity with CI/CD pipeline configuration Expertise establishing and executing … cross-functional teams, including developers and QA team members Familiarity with Docker and Kubernetes for testing microservices in containerised environments Automated API testing with Java, such as RestAssured or SoapUI Experience with Contract Testing tools such as PACT Experience using Jira, Confluence, or similar collaborative tools in Agile/Scrum ...

Java Software Engineer

Hiring Organisation
Venture Up
Location
City of London, London, United Kingdom
Level Java Engineer | Sports Betting Startup | London Please note: this role cannot provide visa sponsorship. Please do not apply if you require sponsorship. I’m working on a great opportunity for a Mid-Level Java Backend Engineer to join a small, fast-moving engineering team building critical sports data services … that support high-frequency decision-making. This is a hands-on Java role where you’ll be working with live and historical sports data, third-party APIs, data modelling and downstream integrations — solving the messy, real-world problems that come with external data. What you’ll bring: Computer Science degree ...

Integration Architect - Java, AWS, FS - OutsideIR35

Hiring Organisation
Sanderson Recruitment
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£550 - £600 per day + Outside IR35
Integration Architect/Senior Integration Architect - JAVA/AWS (ESSENTIAL) £600 Pay - Outside IR35 - 4 Days per week on site in London Bridge 6 month initial contract We've partnered with a genuinely exciting organisation who are building a greenfield Bank, as part of this they are implementing a whole … across teams Design and deliver event-driven, API-first, and messaging solutions (NATS, REST) Lead end-to-end integration delivery, including hands-on development (Java/Spring) Ensure scalable, cloud-native solutions on AWS Produce architecture artefacts (blueprints, contracts, ADRs) Guide teams on best practices, API governance, and event design ...

Integration Architect - Java, AWS, FS - OutsideIR35

Hiring Organisation
Sanderson
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£550.00 - £600.00 per day
Integration Architect/Senior Integration Architect - JAVA/AWS (ESSENTIAL) £600 Pay - Outside IR35 - 4 Days per week on site in London Bridge 6 month initial contract We've partnered with a genuinely exciting organisation who are building a greenfield Bank, as part of this they are implementing a whole … across teams Design and deliver event-driven, API-first, and messaging solutions (NATS, REST) Lead end-to-end integration delivery, including hands-on development (Java/Spring) Ensure scalable, cloud-native solutions on AWS Produce architecture artefacts (blueprints, contracts, ADRs) Guide teams on best practices, API governance, and event design ...

Global Banking Markets - Low-Latency Java Software Engineer - Vice President - London

Location
Greater London, England, United Kingdom
Global Banking Markets - Low-Latency Java Software Engineer - Vice President - London Job Description Goldman Sachs Electronic Trading (GSET) - Low-Latency Java Software Engineer - London OUR IMPACT At Goldman Sachs, our Engineers don’t just make things - we make things possible. Change the world by connecting people and capital with ideas. … systems that can be reused and leveraging work and experience from the other regions. SKILLS & EXPERIENCE WE’RE LOOKING FOR BASIC QUALIFICATIONS Strong Java programming skills, ideally in a real-time low latency/zero GC environment. High desire to produce organised, readable, and maintainable software. Proven problem-solving ability ...

Senior Software Engineer

Location
Greater London, England, United Kingdom
critical role in enabling millions of customers to redeem their Avios seamlessly. You'll design, build and evolve scalable, resilient cloud-native services using Java, Spring Boot and AWS, while having the opportunity to influence technical direction and how the team builds and operates software. This is a hands … millions of redemption requests across our global loyalty ecosystem. Working within a collaborative product engineering team, you'll: Build modern microservices and APIs using Java, Spring Boot and AWS Manage cloud infrastructure through Terraform and Infrastructure as Code Contribute to architecture and technical decision‐making as our platform evolves Champion ...

Lead Software Engineer

Location
Greater London, England, United Kingdom
design, development, and delivery of complex software systems and AI‐powered applications. Work across the full stack — frontend (React, TypeScript) and backend (Python, Java) — to build performant, maintainable solutions. Mentor and support a small team of engineers, conducting code reviews and fostering best practices. Collaborate closely with Data Engineers … industry trends. Required Skills & Experience Extensive experience building and deploying production‐grade web and software applications . Strong experience in React, TypeScript, and Python (Java optional). Hands‐on experience with cloud‐native development (AWS, GCP, or Azure). Understanding of CI/CD , infrastructure as code, and container orchestration. ...

Senior Software Engineer

Location
Greater London, England, United Kingdom
innovation, and impact to them through predictive analytics and visual storytelling. Role Details We are seeking a Senior Software Engineer with deep expertise in Java/Kotlin, cloud-native development, and distributed systems to design, build, and support scalable production banking and financial services systems. The ideal candidate will combine … assisted software development practices. Ensure engineering output meets stakeholder expectations, security, resiliency and compliance standards. Technical Skills Strong hands-on experience with Java and/or Kotlin. Expertise in REST APIs, microservices, and distributed systems. Experience with AWS/multi-cloud cloud-native environments. Hands-on experience with messaging frameworks ...

Software Development Engineer - Personalisation

Location
Greater London, England, United Kingdom
impact how millions of customers discover, shop, and savewith Tesco. You will be responsible for · Building low-latency, high-throughput services for personalisation · Developing Java/Spring Boot microservices with REST/gRPC APIs · Working with Kafka and event-driven architectures · Building pipelines using Apache Flink and Apache Beam · Integrating … Relic, Splunk, and metrics platforms · Supporting CI/CD pipelines and deployments · Contributing to experimentation (A/B testing You will need · Strong Java backend experience · Experience building microservices and APIs · Understanding of event-driven systems · Familiarity with stream processing concepts · Knowledge of distributed systems · Strong communication and teamwork skills ...

Software Development Engineer II

Location
Greater London, England, United Kingdom
that power the Credit platform for our partners globally Write clean, well-tested, and maintainable code across the full software development lifecycle, primarily using Java/Kotlin Participate in architectural discussions and contribute to technical decisions that shape the direction of the platform Collaborate closely with product managers, designers … years of professional software engineering experience, with a strong background in designing and building scalable, distributed systems Experience with JVM-based languages such as Java, Kotlin Experience designing and building RESTful APIs and microservices architectures Solid understanding of software engineering fundamentals, including data structures, algorithms, and system design principles Experience ...

Principal Developer

Hiring Organisation
Version 1
Location
London, UK
Employment Type
Full-time
deeply embedded within our DNA. Invest in us and we'll invest in you!. Job DescriptionWe are seeking an experienced Full Stack Java Technical Lead to join our UK Digital & Cloud Practice. Our Digital Practice is expanding rapidly, offering opportunities to achieve medium and long-term career goals. … pipelines, and SOLID/DRY principles. Technical Skills: Hands-on experience with the following technologies: Frontend: JavaScript/TypeScript, Angular, React, Node. Backend: Java, Spring Boot, Hibernate. Desirable Kotlin. Estimation and Sizing: Experience in estimation and sizing. Integration and API Design: Experience in integration and API design. Cloud Experience: Proficiency ...

Principal Developer

Location
London, United Kingdom
foster them,itsdeeply embedded within our DNA. Invest in us andwellinvest in you!. Job Description We are seeking an experienced Full Stack Java Technical Lead to join our UK Digital & Cloud Practice. Our Digital Practice is expanding rapidly, offering opportunities to achieve medium and long-term career goals. … pipelines, and SOLID/DRY principles. Technical Skills: Hands-on experience with the following technologies: Frontend: JavaScript/TypeScript, Angular, React, Node. Backend: Java, Spring Boot, Hibernate. Desirable Kotlin. Estimation and Sizing: Experience in estimation and sizing. Integration and API Design: Experience in integration and API design. Cloud Experience: Proficiency ...

Principal Developer

Hiring Organisation
Hackajob Ltd
Location
South West London, London, United Kingdom
Employment Type
Permanent, Work From Home
foster them,itsdeeply embedded within our DNA. Invest in us andwellinvest in you!. Job Description We are seeking an experienced Full Stack Java Technical Lead to join our UK Digital & Cloud Practice. Our Digital Practice is expanding rapidly, offering opportunities to achieve medium and long-term career goals. … pipelines, and SOLID/DRY principles. Technical Skills: Hands-on experience with the following technologies: Frontend: JavaScript/TypeScript, Angular, React, Node. Backend: Java, Spring Boot, Hibernate. Desirable Kotlin. Estimation and Sizing: Experience in estimation and sizing. Integration and API Design: Experience in integration and API design. Cloud Experience: Proficiency ...

Java Application Developer

Hiring Organisation
Hays Technology
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£520/day £520 p/d Inside IR35
leading organisation within the Energy & Utilities sector is seeking an experienced Java Application Developer to support the delivery of business-critical applications within a modern cloud-native environment. £520 p/d Inside IR35 Mainly Remote (1 day a week in London, the rest is WFH) 6 month+ contract … role you will design, develop and support scalable backend services using Java, working within a microservices and event-driven architecture. Key responsibilities Develop backend services using Java. Build and support event-driven solutions using Apache Kafka. Deliver scalable microservices-based applications. Participate in design, development, testing and deployment activities. Collaborate ...

Senior Lead Software Engineer- Back End- Madrid

Location
Greater London, England, United Kingdom
escalability. Work with the Product team to understand user needs and follow an Agile SDLC to develop and deliver product features. Our stack is Java/Springboot with a bit of Kotlin, DynamoDB, Aurora/MySQL and AWS. Participate with the rest of the team in designing how our architecture … quality software that adjusts to business and product needs to provide a great user experience in a timely manner. Experience with a JVM language (Java/Scala/Kotlin) and Springboot. Experience designing systems from scratch as well as evolving existing architectures to achieve new goals, both serverless and managed ...

Lead Software Engineer - Solution & Data Architecture - B2B SaaS Fintech

Location
Greater London, England, United Kingdom
stop writing code. What we're looking for 8+ years building backend systems in production, with real depth in Kotlin and/or Java (17+) and the Spring ecosystem (Boot, Web, Security, Data). A track record of architecting systems, not just services : you've owned significant design decisions … come from finance. You do need to be curious about it, because the domain is half the job. Our stack Core backend: Kotlin, Java 17+, Spring Boot & Co, JPA/Hibernate, SQL and NoSQL, Elasticsearch, Gradle, JUnit/AssertJ/MockK Metrics, analytics and AI: Python, FastAPI, Polars, LangChain Frontend ...

Java Technical Software Engineering Lead - Vice President

Location
Greater London, England, United Kingdom
title: Java Technical Software Engineering Lead Role type: Permanent Corporate Title: Vice President Department: Wholesale Data Technology Location: London (Hybrid) Company overview Nomura is a financial services group with an integrated global network. By connecting markets East & West, we service the needs of individuals, institutions, corporates and governments through … Overview This position is for a technical lead for data acquisition within the AI Labs/Data Lake team. We are seeking a Lead Java Software Engineer to join our Wholesale Data and Operations Technology team. This position will serve as the technical leader for data acquisition processes and will ...

Senior Java Developer - Post-Trade Market Data (London)

Location
City Of London, England, United Kingdom
Morson Edge (Financial Services) in London is seeking a Senior Java Developer to join the post-trade engineering team on a contract basis. You will design and develop market data and reference data feeds, building robust Java/SpringBoot microservices and REST APIs. The role focuses on auditing and leveraging ...

Java SDE II: Lead Features & Cloud-Driven Systems

Location
Greater London, England, United Kingdom
Software Development Engineer II - Java Job Description As an SDE2 at Tesco, you are a mid-level individual contributor whose impact reaches across your team. You provide technical leadership for medium to large features, participate in their design, and take accountability for delivery. You are expected to implement and ship … responsibilities will evolve with Tesco’s business needs, the role’s key areas of impact include: Developing high-quality software solutions, with proficiency in Java (Spring Boot or other frameworks). Working with Microsoft Azure and Terraform (Infrastructure as Code) or demonstrating a willingness to learn. Implementing and advocating ...

Full-Stack Java/React Engineer II — AI-Driven Innovation

Location
Greater London, England, United Kingdom
JPMorganChase in London seeks a Software Engineer II to ship secure, full-stack features using Java, Spring Boot, and microservices. You will work on scalable architectures, CI/CD pipelines, and AI-assisted development tools from day one, contributing to a culture focused on quality and continuous improvement. The role ...

Global Banking Markets - Low-Latency Java/C++ Software Engineer - Vice President - London

Location
Greater London, England, United Kingdom
Goldman Sachs Electronic Trading (GSET) - Low-Latency Java/C++ Software Engineer - London OUR IMPACT At Goldman Sachs, our Engineers don’t just make things - we make things possible. Change the world by connecting people and capital with ideas. Solve the most challenging and pressing engineering problems for our clients. … systems that can be reused and leveraging work and experience from the other regions SKILLS & EXPERIENCE WE’RE LOOKING FOR BASIC QUALIFICATIONS Strong Java or C++ programming skills, ideally in a real-time low latency/zero GC environment High desire to produce organised, readable, and maintainable software Proven problem ...

Senior Java Platform Engineer | Spring Boot, K8s, Cloud

Location
Greater London, England, United Kingdom
Software Engineer in the UK with hybrid work options. The successful candidate will lead the development of a scalable Data Fabric platform, focusing on Java and Spring Boot microservices while mentoring team members. Required skills include hands-on experience in CI/CD, Kubernetes, and cloud technologies (GCP preferred). ...