BNY★3.5 (5.5k)· London

You'll use Java 17/21 with Spring, Maven, Groovy, JavaScript/TypeScript (Angular), Docker, GitLab CI/CD, IntelliJ, Windsurf, Splunk, and AppDynamics to build secure backend services, batches, and APIs for a global financial services company.

Java 11+, Spring Boot, microservices, event-driven architecture, Terraform, and cloud platforms (Azure, AWS, or GCP). The team builds post-trade technology solutions including business-critical applications, APIs, client reporting platforms, and web portals for capital markets. You will mentor developers and contribute to architectural decisions.

Nuffield Health★3.2 (939)· London

You will work with Java 21, Spring Boot, Maven, RabbitMQ, Apache Camel, Git, GitHub Actions, Docker, Azure DevOps, Terraform, Ansible, and SQL databases. The Integration Squad designs, develops, and supports microservices and APIs for Nuffield Health's digital healthcare platforms, enabling secure connectivity across internal and third-party systems.

Senior Java developer working with Spring Boot, J2EE, RESTful APIs, Microservices, Kubernetes or OpenShift, Angular, JavaScript, Bootstrap, HTML5, CSS3, SQL, PL/SQL, JBoss or Oracle 10gAS, Git, Maven, Jenkins. You will design, develop and enhance enterprise BSS/OSS solutions, mentoring junior developers within an Agile team.

Work with Python/Go, Git, Jenkins, Maven, Kubernetes or OpenShift to design and enhance a GenAI prompt security platform that protects enterprise LLM applications from prompt injection and adversarial attacks.

You will work hands-on with Java, Kafka, Kubernetes/OpenShift, caching solutions, REST APIs, Spring Boot, SQL, Git, and Gradle/Maven within a high-volume message processing environment for a trading client in the financial services domain.

State Street★3.4 (3k)· London

You will work with ReactJS, NextJS, TypeScript, NodeJS, Java, Spring Boot, Docker, and AWS to build cloud-native microservices. The role involves modernizing legacy platforms and developing enterprise-scale applications for a financial services firm. You will also mentor junior developers.

You will work with Java 11+, Spring/Spring Boot, Microservices, TDD/BDD (JUnit, Spock, Mockito), Git, Maven, and CI/CD on a cloud platform (AWS, Azure, or GCP). The role involves building and evolving a post-trade technology platform — including in-house systems, APIs, and client portal — for a specialist post-trade clearing and prime brokerage firm. You will also manage and mentor a small team of Java developers.

Java, Spring Boot, React/Angular/Vue.js, PostgreSQL/MySQL, REST APIs, AWS/Azure/GCP, Docker/Kubernetes, Git, Maven/Gradle, and CI/CD. You will design, code, test, and maintain scalable Java applications for mission-critical systems as part of an agile squad.

Appvia★0.0· London

Principal Software Architect role using Domain Driven Design (strategic and tactical patterns), Event Storming, microservice-based architectures, C4 modelling, and AI-assisted development practices. You will own solution design and lead domain discovery across customer modernisation programmes in public and private sectors, working alongside a growing Software Engineering practice.

Java, Spring Boot, microservices, cloud, TDD/BDD (JUnit, Spock, Mockito), and CI/CD tools (GitHub, Azure DevOps, Jenkins). You will build and evolve a post-trade clearing and prime brokerage platform, including in-house systems, APIs, and a client web portal. The role includes managing a small Java team and has an explicit pathway to Head of Engineering within 24 months.

State Street★3.4 (3k)· London

You will work with Java, Spring Boot, Spring MVC, and RESTful APIs to build backend services and API integrations. Your team develops digital asset products that support financial services workflows, custody, tokenization, and blockchain-adjacent systems.

You will work with Java, Selenium WebDriver, Playwright, REST Assured, Cucumber BDD, Postman, Swagger, K6, AWS, Kafka, Git, Maven, and CI/CD tools. You will join Agile engineering teams building cloud-native applications to deliver secure digital services for major public sector transformation programmes.

Senior Java developer working with Java 11+, Spring Boot, microservices, cloud platforms (Azure/AWS/GCP), Terraform, CI/CD, and AI tools. The team builds post-trade technology solutions, APIs, client reporting platforms, and custom trading systems for capital markets.

BNY★3.5 (5.5k)· London

Lead a Build Engineering team building BNY’s central build automation platform, optimizing CI/CD pipelines and developer workflows. Use Java, Go, JavaScript, Python; GitHub Actions, GitLab CI/CD, Jenkins, Bazel, Gradle, Maven; Artifactory, Nexus; and AI/ML-driven build tooling.

FDM Group★2.9 (270)· London

Design, build and operationalise enterprise-scale Agentic SDLC platforms using LLMs, AI Agent frameworks, Java, Spring Boot, GitHub Enterprise, Copilot, Actions, Kubernetes, Docker and GCP. The role leads the transformation of software engineering through Generative AI and AI-native delivery, automating activities across the full software development lifecycle for a financial services client.

Version 1★3.9 (39)· London

You will work with Java, Kafka, Kubernetes/OpenShift, caching solutions, REST APIs, Spring Boot, SQL, Redis, Gradle/Maven, Git/Bitbucket, and AI coding assistants. You will join a UK Digital Data & Cloud Practice team supporting a high-volume message processing environment for a global financial services client.

JPMorgan★3.9 (20k)· London

Uses Java, Spring, Springboot, React, Kafka, Python, Databricks, Spark, AWS, and AI development tools to build real-time trade processing applications for financial markets, Futures & Options, and Trade Execution/Clearing. Leads engineering teams, defining the technology roadmap for next-generation data, analytics, and automation platforms.

Senior Backend Java Engineer role building scalable, secure backend systems with modern Java, Spring Boot, Spring Data JPA/Hibernate, Spring Security, REST APIs, microservices, SQL/NoSQL databases, Kafka/RabbitMQ, Docker, AWS/Azure/GCP, CI/CD tools, Maven/Gradle, and observability tooling. The role works on client-facing projects for an AI-native consulting partner.

Lead Backend Java Engineer role using modern Java, Spring Boot ecosystem (Security, Data JPA, Cloud), REST APIs, microservices, Docker, Kubernetes, and cloud platforms (AWS, Azure, GCP). CreateFuture is an AI-native consulting partner building digital products for clients like PayPal and adidas, with the lead defining technical strategy, architecture, and standards across multiple client engagements and engineering teams.

Navan★2.8 (19)· London

Senior Site Reliability Engineer at Navan in London. Build and operate cloud infrastructure using AWS, Terraform, Java, Python, and monitoring tools like DataDog. Automate and operate microservices and AI/ML workloads, define SLO/SLI frameworks, and drive reliability standards across the team.

Elsevier★3.8 (769)· London

You'll build and maintain API platforms using Java, JavaScript, Groovy, JSP, HTML, XML, SQL, and bash, with Maven/Gradle, PostgreSQL, AWS services via Terraform, Docker/Kubernetes, and observability tools like New Relic and Kibana. The team supports Elsevier's healthcare education products, including electronic health records systems for clinical training. You'll design scalable solutions, implement best practices, and improve developer experience for internal and external users.

TP ICAP★3.1 (34)· London

You'll work with Java, FIX connectivity, distributed messaging (Solace/Kafka), Maven/Gradle, and cloud platforms (AWS, Kubernetes) to design and optimize low-latency, fault-tolerant trading system components. TP ICAP is a global financial market infrastructure provider and the world's largest interdealer broker, serving electronic trading across multiple asset classes. This is a senior role mentoring engineers on a distributed team.

JPMorgan★3.9 (20k)· London

You'll develop and maintain production systems for Equity Derivatives front-office workflows at JPMorgan, using Python, Java, JavaScript/TypeScript, Spring Boot, Hibernate, and JUnit within large-scale enterprise environments. You'll own critical system reliability, architect complex applications, drive user acceptance testing for pricing and risk workflows, and lead team adoption of AI-assisted development practices while collaborating across front office, operations, and technology functions.

JPMorgan★3.9 (20k)· London

You'll design and maintain Spring Boot-based backend frameworks and libraries for JPMorgan Personal Investing's platform team, using Java and the Spring ecosystem to support product engineering teams building asynchronous investment systems. The role combines hands-on backend development with technical leadership, mentoring, and driving standardization of development practices, tooling, and AI-assisted engineering workflows across the Investments technology organization. You'll work closely with SDLC, Infrastructure, and product teams to establish best practices, champion security and compliance controls, and foster continuous improvement across distributed teams.