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.

Cato Networks seeks a Senior Full Stack Engineer for their secured access team to design and build web security solutions and internal infrastructure platforms using Java, Go, Spring Boot, GraphQL, PostgreSQL, MySQL, MongoDB, and Redis. The role involves end-to-end development from large-scale data processing to web interfaces, working on enterprise SaaS microservices at scale across security products and infrastructure. Requires 6+ years backend development experience, SaaS microservices expertise, and familiarity with relational/non-relational databases in CI/CD environments.

G-Research★3.6 (18)· London

You will build automation frameworks and tooling using Python, Ansible, Terraform, and Jinja2, integrating them into CI/CD pipelines. This hands-on role sits at the intersection of networking and software engineering, developing APIs and self-service tools to power large-scale compute and research environments at a quantitative finance firm.

JPMorgan★3.9 (20k)· London

You will work with Java 17+, Spring/Spring Boot, REST APIs, AWS, Terraform, Infrastructure as Code, CICD, TypeScript, and React in a cloud platform engineering team that improves reliability, resilience, and observability of customer-facing digital banking services for Chase UK.

You will work with Java 11+, Spring Framework, Hibernate, REST microservices, AWS (Lambda, ECS, EKS), Terraform, and Kubernetes (deployments, ingress, autoscaling, monitoring). This role is with LA International Computer Consultants Ltd, an IT consultancy. No specific team or project scope is listed.

LogicMonitor★4.1 (33)· London

LogicMonitor’s Senior Solutions Engineer works with Python, Go, Java, JavaScript, REST APIs, Docker, AWS and automation tools (Ansible, Chef, Puppet) to design, code and test custom integrations. The Professional Services team delivers complex technical solutions for enterprise customers, leading large-scale deployments.

Design, build, and optimise enterprise-scale ETD middle office clearing platforms using Java, Spring Core, Spring Boot, and Python within Azure and Kubernetes environments. The role focuses on clearing solutions integrated with FIS CD Trade Clearing for critical trading operations.

Visa★3.9 (1.2k)· London

Work with Kong API gateway (Lua plugins), Java/Spring Boot, Datadog, Kubernetes, and GenAI tools on Visa’s Edge team, which owns the API Gateway and authentication layer—the critical path for all external API calls. This is a small, high-leverage team designing and operating systems to keep the platform available, secure, and easy for partners to integrate with.

State Street★3.4 (3k)· London

Build Java REST APIs with Spring Boot, deploy containerized microservices on Kubernetes (AKS), and use Oracle databases. You will join the Digital Asset development team to build secure, resilient API services supporting institutional digital custody, tokenization, transfer agency, and digital cash/settlement workflows.

Lead a hands-on engineering team building a greenfield Agentic AI Platform for banking workflows using Python, Java/Spring Boot, and Go, with LLM/agentic frameworks (Google ADK, LangChain), GCP, Vertex AI, Elastic, Pinecone, Databricks, Kafka, Kubernetes, and Terraform. You will drive architecture, code, and mentor a new team of software and ML engineers.

You will work with Java 17+, JVM, Kotlin, Vert.x, Spring WebFlux, Kafka Streams, Apache Flink, gRPC, FlatBuffers, Avro, Protobuf, AWS (EKS), Docker, Kubernetes, Helm, Kustomize, Terraform, Redis, CDN, GitLab CI, Elasticsearch, Solr, GraphQL, WebSocket, and AI/ML tools. The Prepurchase Platform team owns backend services powering fans' path to tickets—event discovery, real-time seat availability, and interactive venue experiences at massive scale, processing billions of API calls during peak on-sales. This is a hands-on coding role with no direct reports.

Citi★3.9 (21k)· London

This role architects Citi's strategic Release on Demand platform, using event-driven architecture and AI, while establishing its observability and end-to-end testing strategies. The Developer Enablement team builds internal SDLC automation tools for the bank's 30,000 engineers. As SVP and technical authority, this role leads a small, agile team and owns the technical roadmap.

Rightmove★3.7 (31)· London

Java, Spring Boot, Elasticsearch, Kafka, Gradle, Hibernate, Couchbase, SQL, and Docker. You will build and improve microservices that power Rightmove’s iOS and Android apps, working in a cross-functional team.

Rightmove★3.7 (31)· London

NodeJS and Java (Spring Boot) on Google Cloud Platform. This role leads cross-functional product development teams building the technology customers use to list properties on Rightmove.

JPMorgan★3.9 (20k)· London

Java 17+, Spring/Spring Boot, microservices, Kubernetes, Linux, messaging (MQ/Kafka, FIX, Solace), and CI/CD tooling. The team builds and delivers high-performance, latency-sensitive trading systems and platform services for JPMorgan’s Digital Markets Execution Technology.

As a Staff Engineer, you'll build APIs, workflow orchestration, and tool integration using Java, Spring Boot, JOOQ, SNS+SQS, Kafka, MySQL, PostgreSQL (RDS/Aurora) on AWS. You'll join the team building Tide's agentic platform to bridge backend systems with Generative AI for SME banking services.

Lead architecture of Tide's agentic platform, working with Java, Spring Boot, JOOQ, Kafka, AWS (RDS, Aurora, EKS), Docker, Terraform, DataDog, and GitHub CI/CD. You'll design shared services (context APIs, tool layers, policy controls, auditability) and build evaluation pipelines for AI reasoning and safety. Tide provides business accounts and administrative solutions for SMEs.

CrowdStrike★3.8 (54)· London

You'll design and develop highly scalable streaming microservices using Apache Kafka, Apache Flink, Apache Spark, and Apache Storm in Java, Python, and Go, deploying on Kubernetes across AWS, GCP, OCI, and on-premises infrastructure. CrowdStrike's Real-Time Streaming Platform team processes trillions of security events daily, enabling threat detection and incident response at petabyte scale. The role requires 8+ years of software engineering experience with deep distributed systems and stream processing expertise.

Rightmove★3.7 (31)· London

You'll work with Java 17+, Spring Boot, Kafka, Elasticsearch, Hibernate, Couchbase, SQL, Gradle, and Docker, building backend services and microservices for Rightmove's property platform. The role involves designing features, owning technical decisions end-to-end, and mentoring junior engineers within a cross-functional team supporting millions of users and thousands of agents.

Rightmove★3.7 (31)· London

You'll work primarily in Java and Spring Boot, operating across frontend, mobile, data, and infrastructure to lead architectural design and standards across Rightmove's consumer product domain—property search, listings, saved searches, maps, and valuations serving millions of users. This principal role involves mentoring senior engineers and tech leads, guiding large cross-team initiatives, and shaping long-term platform direction across approximately 60 engineers in the consumer domain.

JPMorgan★3.9 (20k)· London

You'll work with Java, Python, Spring, Go, Terraform, and Kubernetes on AWS, Azure, or GCP to build and operate cloud-native platform services and infrastructure. The Cloud Engineering Acceleration team delivers strategic public cloud solutions across JPMorgan's Public Cloud Engineering organization, partnering with component teams to help customers deliver reliably and securely. As a Lead Software Engineer, you'll contribute to system design, lead architecture discussions, and drive engineering excellence across the platform.