26 to 50 of 189 Java Software Engineer Jobs in London

Role: Contract Senior Java Engineer Location: London (Hybrid | 3 days onsite initially) Contract Length: 6-Month Contract | Inside IR35 | £600–£700/day We’re looking for an experienced Senior Java Engineer to join our consultancy delivery team, supporting a flagship project with one of the UK’s leading digital banks . You’ll be embedded … releasing multiple times per day is the norm. This is a hands-on engineering role with the opportunity to work on cutting-edge systems from day one. Tech Stack: Java 21 Spring Boot Kubernetes , AWS Grafana , GitHub Event-driven architecture, microservices CI/CD & rapid delivery tooling What You’ll Be Doing: Build scalable and secure microservices using Java … maintain production-grade reliability Work onsite 3 days/week in London for the first 4–6 weeks (hybrid flexibility beyond this) We’re Looking For: 5+ years of Java engineering experience (Java 11+; ideally Java 21) Strong background with Spring Boot , microservices, and cloud-native design Hands-on with Docker, Kubernetes , AWS , and containerised deployments CI More ❯

Java Developer (Full Stack) - Java, React & TypeScript – Up to £520/day (Outside IR35) – Hybrid (London Bridge) – 3 month contract We’re a mission-driven tech company that builds products to help people make confident decisions about their finances and everyday services. From switching energy providers to finding the right mortgage, we use data, design, and smart tech … to make complex choices simpler and more transparent for millions of users. Essential Skills: Strong commercial experience with Java, React and TypeScript. Experience configuring, deploying, and monitoring applications on Azure. TDD (Test-Driven Development) experience. API build experience is essential. Comfortable working with relational and NoSQL databases, including complex queries and performance optimization. Solid understanding of web design patterns More ❯

Java Developer (Full Stack) - Java, React & TypeScript – Up to £520/day (Outside IR35) – Hybrid (London Bridge) – 3 month contract We’re a mission-driven tech company that builds products to help people make confident decisions about their finances and everyday services. From switching energy providers to finding the right mortgage, we use data, design, and smart tech … to make complex choices simpler and more transparent for millions of users. Essential Skills: Strong commercial experience with Java, React and TypeScript. Experience configuring, deploying, and monitoring applications on Azure. TDD (Test-Driven Development) experience. API build experience is essential. Comfortable working with relational and NoSQL databases, including complex queries and performance optimization. Solid understanding of web design patterns More ❯

Lead Software Engineer Java- Fixed Income Get AI-powered advice on this job and more exclusive features. Job Description We have an opportunity to impact your career and provide an adventure where you can push the limits of what's possible. As a Lead Software Engineer at JPMorgan Chase within the Commercial and Investment Bank … contributor, you are responsible for conducting critical technology solutions across multiple technical areas within various business functions in support of the firm’s business objectives. Job Responsibilities Executes creative software solutions, design, development, and technical troubleshooting with ability to think beyond routine or conventional approaches to build solutions or break down technical problems Develops secure high-quality production code … and reviews and debugs code written by other Identifies opportunities to eliminate or automate remediation of recurring issues to improve overall operational stability of software applications and systems Leads evaluation sessions with business stakeholders, and internal teams to drive outcomes-oriented probing of architectural designs, technical credentials, and applicability for use within existing systems and information architecture Leads communities More ❯

a mission to find and work with leading banks all around the world who have the ambition to build rapid growth businesses on our technology. Engine is Starling's software-as-a-service (SaaS) business, the technology that was built to power Starling Bank, and a year ago we split out as a separate business. Starling Bank has seen … our offices so that we're able to interact and collaborate in person. About Engineering at Engine by Starling - https://www.enginebystarling.com/We’re looking for Backend Software Engineers to work on the Engine Platform and make our existing features work for banks all over the world, as well as building new features from scratch that Starling … primary tech stack may be. Hear more from the team in some case studies, below, and our work with Women In Tech . Day in the Life of a Software Engineer Running a Backend Team We are looking for engineers at all levels to join the team. We value people being engaged and caring about customers, caring about More ❯

Job Title: Java Developer (Electronic Trading Platform - FIC) Contract Type: Outside IR35 Location: London Day Rate: Up to £850 per day Flexible Hybrid working: 1-2 days a week in London City offices Client: Prestigious Investment Bank Industry: Investment Banking Duration: 12 months + Overview: We are seeking an experienced Java Developer to join a high-profile investment … to ensure real-time decision-making capabilities. Integrate with Instrumentation Platforms : Integrate the platform with Prometheus and Geneos for continuous monitoring, diagnostics, and system health checks. Desired technical Skills: Java Expertise: Extensive experience with Core Java , focusing on low-level performance tuning, multithreading , and garbage collection optimization . FIC or similar business knowledge: Strong understanding of FIC markets More ❯

Job Title: Java Developer (Electronic Trading Platform - FIC) Contract Type: Outside IR35 Location: London Day Rate: Up to £850 per day Flexible Hybrid working: 1-2 days a week in London City offices Client: Prestigious Investment Bank Industry: Investment Banking Duration: 12 months + Overview: We are seeking an experienced Java Developer to join a high-profile investment … to ensure real-time decision-making capabilities. Integrate with Instrumentation Platforms : Integrate the platform with Prometheus and Geneos for continuous monitoring, diagnostics, and system health checks. Desired technical Skills: Java Expertise: Extensive experience with Core Java , focusing on low-level performance tuning, multithreading , and garbage collection optimization . FIC or similar business knowledge: Strong understanding of FIC markets More ❯

financial lives of thousands of savers. We’re regulated by the Financial Conduct Authority in the UK. The role: We’re looking for an experienced and driven Senior Backend Engineer to join our growing fintech team. This is more than just a coding role - we want someone who is curious, self-motivated, and ready to bring fresh ideas to … always evolving - perfect for someone who thrives on solving complex problems and influencing technical direction. Requirements: What we expect of you: Strong object-oriented design and development experience in Java, ideally utilising Micronaut or Spring Boot frameworks Experience of designing and building service-oriented and event-driven architectures Demonstrable experience of leading others in application design and coding standards More ❯

Senior Java Developer - SC Cleared Looking for 1-2 Java Developers to work on a large government project. Java, AWS, TDD/XP, Spring Boot 2 days a week in London Candidates MUST have active SC Clearance £500 - £550 per day Inside IR35 12 month contract More ❯

Senior Java Developer - SC Cleared Looking for 1-2 Java Developers to work on a large government project. Java, AWS, TDD/XP, Spring Boot 2 days a week in London Candidates MUST have active SC Clearance £500 - £550 per day Inside IR35 12 month contract More ❯

Bentley Whitaker Search and Selection. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Base pay range Senior Full Stack Java Engineer - Java, TypeScript, AWS, MySQL, NoSql, Microservices, Machine Learning, Artificial intelligence (Hybrid - 3 days a week in the office near Notting Hill) Senior Full Stack Java Engineer :- You will be joining a fast-growing, research-driven company building an artificial intelligence using novel machine learning techniques. My client is revolutionising their industry with a track record of building things that others have ruled out as impossible. The senior Java Full Stack engineer will join a very bright, talented team of engineers with … of the best known technology companies today. You will have a great opportunity to work with a variety of languages, frameworks and tools. Applicants will need a background in Java and modern JS frameworks and likely to have good AWS and Microservices experience. Core skills for the Senior Full Stack Engineer : 5yrs+ in a commercial Development role - currently More ❯

based on your skills and experience — talk with your recruiter to learn more. Base pay range Direct message the job poster from Quant Capital High-Growth Fintech – Asset Management Software London (Hybrid – 2 days in office/week) Quant Capital is urgently looking for a Core Java Developer to join a innovative FinTech business developing next-generation asset … investors. The firm operates as a lean, high-performance engineering team focused on solving complex industry problems through clean, scalable code and modern infrastructure. We’re looking for a Java Developer who’s ready to work across the stack and get deeply involved in architectural design, backend performance, and infrastructure scaling. Role Overview This is a hands-on software … work directly with experienced engineers and stakeholders to enhance a cutting-edge platform used by institutional clients. Key Responsibilities Design, build, and maintain high-performance backend services using Core Java Collaborate closely with a compact, highly capable development team Optimize software performance and troubleshoot production issues across the stack Follow clean coding standards and lead on testing, CI More ❯

Social network you want to login/join with: Lead UI Software Engineer - Stack: React, Typescript, Java, Spring, London col-narrow-left Client: Location: London, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Reference: e6e0c604a725 Job Views: 7 Posted: 22.06.2025 Expiry Date: 06.08.2025 col-wide Job Description: As a Lead Software Engineer at JPMorgan Chase within the Corporate and Investment Banking Payments Technology, you play a crucial role in an agile team that is dedicated to improving, creating, and delivering trusted market-leading technology products in a secure, stable, and scalable manner. As a key technical contributor, you are tasked with implementing vital technology solutions across numerous technical areas … the firm's business goals. Job responsibilities Lead the strategy for our UI estate, driving best practices on UX, architecture and integration with our Back end components Execute creative software solutions, design, develop and innovate across a full stack suite of applications. Think beyond routine or conventional approaches to build solutions or break down technical problems Engage directly with More ❯

narrow-right Job Views: 2 Posted: 06.06.2025 Expiry Date: 21.07.2025 col-wide Job Description: London (5 days onsite, with some ad-hoc flexibility) TechHeads is currently seeking a Senior Software Engineer with strong Java backend experience, DevOps awareness, and proven technical leadership capabilities to join our Client’s London team. This is a high-impact role involving … systems at significant scale, leading both engineering efforts and mentoring team members, while collaborating with globally distributed teams in the US, Ireland and India. Responsibilities: Design, develop, and maintain Java-based backend services using Spring Boot , REST/GraphQL , Kafka , PostgreSQL , and RabbitMQ . Contribute to infrastructure modernisation efforts, working closely with DevOps teams on Kubernetes , CI/CD … including product and engineering groups in the US, Ireland and India, to ensure alignment and execution. Build and deploy secure, resilient APIs (REST/GraphQL) and optimise the full software development lifecycle through automation. Requirements: 7–10+ years of professional experience in software engineering, with a strong focus on Java backend development . Solid understanding of Spring More ❯

of robust systems that generate and manage automated documentation workflows for banks. While the broader tech stack includes Node.js, JavaScript, and various database technologies, this role focuses primarily on Java and backend architecture, especially for candidates without deep JavaScript experience. Key Responsibilities Develop, maintain, and scale backend services in Java Support and eventually contribute to Node.js components (with … and contribute to a high-quality engineering culture Engage with banking-focused client requirements in a structured, agile environment Key Skills and Experience 4–7 years' professional experience in Java development Solid understanding of Java frameworks (Spring Boot, Hibernate) Practical knowledge of database systems (e.g., PostgreSQL, MySQL, MongoDB) Strong grasp of software engineering fundamentals and clean coding More ❯

of robust systems that generate and manage automated documentation workflows for banks. While the broader tech stack includes Node.js, JavaScript, and various database technologies, this role focuses primarily on Java and backend architecture, especially for candidates without deep JavaScript experience. Key Responsibilities Develop, maintain, and scale backend services in Java Support and eventually contribute to Node.js components (with … and contribute to a high-quality engineering culture Engage with banking-focused client requirements in a structured, agile environment Key Skills and Experience 4–7 years' professional experience in Java development Solid understanding of Java frameworks (Spring Boot, Hibernate) Practical knowledge of database systems (e.g., PostgreSQL, MySQL, MongoDB) Strong grasp of software engineering fundamentals and clean coding More ❯

Job Description As a Lead Software Engineer at JPMorgan Chase within the Corporate and Investment Banking Payments Technology, you play a crucial role in an agile team that is dedicated to improving, creating, and delivering trusted market-leading technology products in a secure, stable, and scalable manner. As a key technical contributor, you are tasked with implementing vital … the firm's business goals. Job responsibilities Lead the strategy for our UI estate, driving best practices on UX, architecture and integration with our Back end components Execute creative software solutions, design, develop and innovate across a full stack suite of applications. Think beyond routine or conventional approaches to build solutions or break down technical problems Engage directly with … our Product Owners and stakeholders to drive the delivery of novel solutions Mentor and guide the next generation of software engineers Develop secure high-quality production code, and collaborate with peers to review and debug code Identify opportunities to eliminate or automate remediation of recurring issues to improve overall operational stability of software applications and systems Lead evaluation More ❯

Job Description Read on to find out what you will need to succeed in this position, including skills, qualifications, and experience. As a Lead Software Engineer at JPMorgan Chase within the Corporate and Investment Banking Payments Technology, you play a crucial role in an agile team that is dedicated to improving, creating, and delivering trusted market-leading technology … the firm's business goals. Job responsibilities Lead the strategy for our UI estate, driving best practices on UX, architecture and integration with our Back end components Execute creative software solutions, design, develop and innovate across a full stack suite of applications. Think beyond routine or conventional approaches to build solutions or break down technical problems Engage directly with … our Product Owners and stakeholders to drive the delivery of novel solutions Mentor and guide the next generation of software engineers Develop secure high-quality production code, and collaborate with peers to review and debug code Identify opportunities to eliminate or automate remediation of recurring issues to improve overall operational stability of software applications and systems Lead evaluation More ❯

related to this role. We have an opportunity to impact your career and provide an adventure where you can push the limits of what's possible. As a Lead Software Engineer at JPMorgan Chase within the Commercial and Investment Bank - Post Trade Technology Group, you are an integral part of an agile team that works to enhance, build … contributor, you are responsible for conducting critical technology solutions across multiple technical areas within various business functions in support of the firm's business objectives. Job responsibilities Executes creative software solutions, design, development, and technical troubleshooting with ability to think beyond routine or conventional approaches to build solutions or break down technical problems Develops secure high-quality production code … and reviews and debugs code written by other Identifies opportunities to eliminate or automate remediation of recurring issues to improve overall operational stability of software applications and systems Leads evaluation sessions with business stakeholders, and internal teams to drive outcomes-oriented probing of architectural designs, technical credentials, and applicability for use within existing systems and information architecture Leads communities More ❯

work on building the tooling that is used by our engineers on a daily basis. Requirements Ideally, you have at least 5-6 years of experience as a professional software engineer. We are very open about how we deliver software. For the most part we code in Java and we believe in clean coding, simple solutions, automated testing … The main part of our Tech Stack is listed below, we don't ask that you have experience in all of this, but if you do, that's great! Java, which makes up the majority of our backend codebase AWS & GCP - we're cloud-native Microservice based architecture Kubernetes (EKS) TeamCity for CI/CD (lots of team are … from you, so come with questions and be curious. In general you can expect the below, following a chat with one of our Talent Team: Initial interview with an Engineer - ~45 minutes Take home technical test to be discussed in the next interview Technical interview - ~1.5 hours Final Interview - ~40 minutes Benefits 25 days holiday (plus take your public More ❯

to work on building the tooling that is used by our engineers on a daily basis. Ideally, you have at least 5-6 years of experience as a professional software engineer. We are very open about how we deliver software. For the most part we code in Java and we believe in clean coding, simple solutions, automated testing … The main part of our Tech Stack is listed below, we don't ask that you have experience in all of this, but if you do, that's great! Java, which makes up the majority of our backend codebase AWS & GCP - we're cloud-native Microservice based architecture Kubernetes (EKS) TeamCity for CI/CD Terraform and Grafana Our More ❯

to work on building the tooling that is used by our engineers on a daily basis. Ideally, you have at least 5-6 years of experience as a professional software engineer. We have built our entire banking platform in-house and mostly in Java. We are looking for people who want to work on building the tooling that is … The main part of our Tech Stack is listed below; we don't ask that you have experience in all of this, but if you do, that's great! Java, which makes up the majority of our backend codebase AWS & GCP - we're cloud-native Microservice based architecture Kubernetes (EKS) TeamCity for CI/CD (lots of teams are More ❯

Software Engineer/Developer (Java 17 Kotlin AWS) London/WFH to £85k Are you a technologist Software Engineer with strong Java skills looking to progress your career, working with a modern cloud based infrastructure and a range of technology? You could be joining a hugely successful and growing commodities trading firm that specialise … in trading whiskey. As a Software Engineer you'll collaborate with the Lead Engineer on the core trading platform as the company looks to scale the platform and introduce new features. There's an emphasis on code quality; designing and developing highly complex web based trading platforms working across the full development lifecycle. The technology stack includes … Java 17, Kotlin, Spring Boot and AWS amongst others; you'll be encouraged to expand your skillset using the latest technologies and choosing the best tool for the job in a friendly Agile team environment. WFH Policy: You'll join the team in the West London office with flexibility to work from home twice a week. About you: You More ❯

Software Engineer/Developer (Java 17 Kotlin AWS) London/WFH to £85k Are you a technologist Software Engineer with strong Java skills looking to progress your career, working with a modern cloud based infrastructure and a range of technology? You could be joining a hugely successful and growing commodities trading firm that specialise … in trading whiskey. As a Software Engineer you'll collaborate with the Lead Engineer on the core trading platform as the company looks to scale the platform and introduce new features. There's an emphasis on code quality; designing and developing highly complex web based trading platforms working across the full development lifecycle. The technology stack includes … Java 17, Kotlin, Spring Boot and AWS amongst others; you'll be encouraged to expand your skillset using the latest technologies and choosing the best tool for the job in a friendly Agile team environment. WFH Policy: You'll join the team in the West London office with flexibility to work from home twice a week. About you: You More ❯

Cipher7 Hiring High profile positions across FinTech I RegTech I RiskTech I Capital Market I Front Office - Middle Office - Back Office I I LIBOR I IBOR I... Job Title: Java Developer (Outside IR35) Engagement: Long-term Location: Reading Overview: We are currently seeking a skilled Java Developer with 4–5 years of experience for a long-term Outside … in Reading or London. This is a fantastic opportunity for a motivated developer to join an enterprise-level project team and contribute to the delivery of high-performance, scalable Java applications. Key Responsibilities: Design and implement RESTful APIs and scalable Java applications. Develop enterprise-grade services using Spring Boot, Spring Security, Spring Data, and Spring MVC. Conduct unit … management platforms (e.g., ForgeRock). Handle Kafka-based data streaming and understand Kafka architecture. Utilize enterprise-level Elastic solutions. Required Skills & Experience: 4–5 years of professional experience in Java development. Strong knowledge of Java, Spring ecosystem, and RESTful API architecture. Proven experience with web standards (HTML5, CSS3) and frontend tools. Experience with enterprise integration and microservices architecture. More ❯