Wise★3.5 (42)· London

Lead a growing Solutions Engineering team in EMEA, providing technical consulting and product guidance to top-tier banks integrating Wise’s international finance products via REST API. Work with RESTful design, OpenAPI, OAuth2, and microservice architecture to architect integrations and influence the product roadmap.

Work with Java, Spring, event-driven systems (Solace, Kafka, Web Sockets), Domain-Driven Design, CI/CD, and cloud containerization. Lead hands-on development of high-performance core services for Citi’s FX technology platform, collaborating with traders, quants, and engineers to evolve global finance systems.

Reward Gateway★4.4 (11)· London

Define and champion the architecture vision for the Engagement Business Unit, working with global architecture and engineering leaders. The role involves leading architecture governance, establishing reusable patterns, and driving the adoption of AI-enabled engineering practices across APIs, microservices, event-driven systems, and data streaming platforms like Kafka. You'll partner with product and engineering teams to deliver scalable cloud-native applications and improve CI/CD pipelines and software delivery practices.

Insulet Corporation★3.1 (189)· London

Lead a globally distributed MuleSoft engineering team owning the AI Enablement Integration portfolio. The role works with MuleSoft Anypoint Platform, AI Gateway, Model Context Protocol (MCP), Agent Fabric, CloudHub 2.0, and Flex Gateway to make enterprise systems and APIs securely available to AI agents and automation platforms.

Insulet Corporation★3.1 (189)· London

You will lead a globally distributed MuleSoft engineering team, using MuleSoft Anypoint Platform, AI Gateway, MCP, Agent Fabric, API-led connectivity, CloudHub 2.0, and Flex Gateway to build secure, governed integration capabilities for enterprise AI agents, automation, and intelligent workflows. This role owns the AI Enablement Integration portfolio at Insulet, a company pioneering “Liveable Technology” to transform diabetes care.

Wise★3.5 (42)· London

Build backend

Work with C#, .NET 8+, Blazor, Azure (Service Bus, Container Apps, SQL), Terraform, and CI/CD to build event-driven microservices that integrate AI/LLM components at an AI and PropertyTech scale-up. You'll join a small, close-knit team collaborating directly with

FDM Group★2.9 (270)· London

Senior .NET developers use C#, .NET 8, ASP.NET Core MVC, CQRS, Domain-Driven Design, Azure DevOps, Git, and CI/CD to build secure web applications and services. The role leads design and delivery for a large-scale Investment Programme platform within the Public Sector, integrating with Dynamics 365 and CRM systems.

Netbuilder★3.0 (1)· London

Full-stack developers use Java, Spring Boot, React, TypeScript, Oracle, MySQL, Git, Jenkins, Spinnaker, Docker, and Kubernetes to build, enhance, and support scalable web applications, APIs, and enterprise platforms for NETbuilder, a digital solutions provider.

You will design and maintain automated UI, API, and service-level tests in TypeScript using Serenity/JS and Playwright, plus Python/pytest and C#/.NET. The role involves testing the ACE application and internal platform tooling for a decentralised AI platform optimising energy in data centres.

Lead Engineer using Vue (frontend), Django/Laravel (backend), AWS, Stripe/Salesforce/Netsuite integrations, SOAP, REST/OpenAPI, and project tools like JIRA, GitHub. Builds and maintains the user-facing commercial platform central to customer interaction. Manages and mentors junior developers, acting as project manager for releases.

You'll build and maintain core domain services using C#, .NET, Kafka, and AWS, employing Domain-Driven Design, hexagonal architecture, and AI tooling (Copilot, Claude Code, Codex). You'll help re-platform a legacy Django application to a service-based .NET platform for En>ACT, a RegTech SaaS solution enabling regulatory transaction reporting and reconciliation for financial firms.

Work with Java, Spring Boot, Kafka, and PostgreSQL to design and maintain highly scalable microservices. You will join the Partner Cash Management team, building infrastructure that lets banks fund, hold, and manage money within interbank payment networks.

Yapily★0.0· London

Lead a team building core microservices on Yapily's open banking platform, using Java, Spring Boot, and Kubernetes. Design REST APIs with OpenAPI/Swagger, oversee scalability and monitoring, and drive Agile delivery.

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.

Citi★3.9 (21k)· London

Lead architecture and hands-on development of a greenfield Agentic AI Platform on GCP using Vertex AI, ADK, LangChain, multi-agent architectures, and RAG with Python, Java/Spring Boot, and Kubernetes. The platform empowers Citi’s corporate and investment bankers with autonomous agents to streamline workflows and deepen client relationships.

Apple★4.1 (14k)· London

Work with TypeScript, React, Webpack, Jest, Java, Spring, and Swagger/OpenAPI. You will help develop next-generation cloud services for iCloud Platform, enabling new applications and scaling existing ones like FaceTime, PushNotifications, Photos, and Backup.

Visa★3.9 (1.2k)· London

You will work with Java 11+, Spring Boot, AWS, Kubernetes, Kafka, ElasticSearch, Datadog, Docker, Terraform, OpenAPI, SQL, PACT, and CI/CD pipelines. As part of cross-functional squads, you will build and maintain a high‑availability, cloud‑native payments platform that processes over 50 billion USD in cross‑border transactions. You will lead technical direction, shape architecture, and mentor junior engineers.

You will work with Java, Spring, PostgreSQL, Neo4j, Docker, and CI/CD pipelines to build APIs and scalable access control systems. The team develops GraphAware Hume, a graph-powered analytics platform that helps law enforcement and analysts gain data insight.

Wise★3.5 (42)· London

You'll work with Java, Spring Boot, Kafka, and PostgreSQL, building event-driven microservices on Wise's global payment network. You'll join the Partner Cash Management team, which builds infrastructure enabling banks to fund, hold, and manage liquidity in interbank payment systems.

Globant★4.1 (350)· London

Modern architecture patterns (microservices, DDD, cloud-native on AWS/Azure/GCP) and hands-on depth with principal architects. This VP Technical Evangelist bridges engineering and executive stakeholders (CTO, Directors) within Globant’s airline digital transformation programmes, defending architectural integrity across multi-vendor delivery.

Ebury★3.3 (13)· London

You will work with Python, Java, or Go, cloud platforms (AWS, GCP, Azure), Docker, Kubernetes, and CI/CD pipelines. As part of the Identity team, you’ll design and build IAM platforms, Fine-Grained Access Control systems, and authorization policies for Ebury’s global FinTech platform.

Wise★3.5 (42)· London

You'll use Java (Spring), Kubernetes, AWS, RESTful APIs, Swagger, OpenAPI, OAuth2, and relational/non-relational databases like MySQL, PostgreSQL, MongoDB, and Cassandra. On the Wise Platform team, you'll provide technical consulting and integration support to global financial institutions and tech companies embedding Wise's international money movement products via API.

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.

Ebury★3.3 (13)· London

You will use Python, Java, or Go with cloud platforms (AWS, GCP, Azure) and containerisation (Docker, Kubernetes). You will build and maintain mission-critical identity, access management (IAM), and fine-grained access control (FGAC) systems for Ebury’s global financial platform as part of the Identity team.