Morgan Stanley★3.8 (5.4k)· London

You'll work with core Java on UNIX/Linux, Git/Stash, Jenkins, JUnit, REST, TypeScript/Angular, low-latency messaging middleware, KDB/q, and FIX protocol. The role builds, deploys, and supports algorithmic trading strategies, analytical tools, and scalable trading engine infrastructure for automated systems in Equities. As a VP-level Lead, you'll manage multiple functions and guide junior staff.

You will work with Java, Spring Boot, Hibernate, REST APIs, microservices, Spring MVC, Spring Data JPA, Spring Security, and SQL databases (MySQL/PostgreSQL). You will design, develop, and maintain scalable Java-based applications and microservices for enterprise clients as part of a UK-based IT consultancy serving Fortune 500 and FTSE 100 companies.

Lead a ~132-person engineering org (5 direct reports) building financial services for Africa on Python/GraphQL, Postgres/Redis, Kotlin, Swift, TypeScript/React, GCP, Kubernetes, and Terraform—including AI-powered voice and digital agents handling 10M+ monthly interactions.

You'll work with JavaScript, ElasticSearch, OpenSearch, MongoDB, Apache Kafka, EKS and Kubernetes on Ripjar's Labyrinth Screening SaaS platform, which automates detection of financial crime for banks and governments. This role leads technical decisions and architecture for scaling the platform.

Build features across Svelte/TypeScript front end and Python (FastAPI/Django) back end. Tab is a profitable YC-backed travel fintech processing thousands of hourly payments for 100,000+ global tourism businesses.

Design multi-agent systems and LLM pipelines using LangGraph, Strands, Python, AWS Bedrock, ECS Fargate, Lambda, and Step Functions. Build agent topologies, evaluation frameworks, and MCP integrations for AMPLIFYR.ai’s production brand analytics platform that leverages GPT, Claude, and Perplexity.

Work with Java, Spring Boot, Docker, Kubernetes, and message brokers to design cloud-native microservices and event-driven systems. You will lead development of Chip Financial Ltd’s unique Lombard lending platform for its proprietary brand and SaaS clients. Mentor junior engineers in a high-impact fintech environment.

Work with Java, Spring Boot, Hibernate, microservices, REST APIs, PostgreSQL/Oracle, and testing tools (JUnit, Cucumber, Wiremock, Mockito) in an agile, DevOps environment. You will build and improve the prepaid payment platform for Edenred PayTech, delivering features across the full development lifecycle.

Samsara★3.6 (32)· London

Work with Golang, TypeScript, React, GraphQL, and React Native. As a new grad, you’ll build backend infrastructure for an IoT platform, full-stack web features, mobile app infrastructure, or embedded software that runs on Samsara hardware.

Build and ship end-to-end features using TypeScript, Vue.js/Nuxt.js, Node.js, Docker, AWS, MySQL, and AI-assisted tools like Claude. You’ll own infrastructure and deployment for &Dine’s online food marketplace connecting independent makers with customers. Join a lean engineering team of four.

You will build Venmark’s AI-platform from scratch using NextJS, Java, TypeScript, and AI-powered workflow automations. The company is an AI-native certification firm transforming the testing, inspection, and certification market by acquiring and integrating traditional providers onto a modern platform. As the first tech hire, you will embed with acquired SMEs across the UK.

FDM Group★2.9 (270)· London

Lead multiple cross-functional engineering teams for a banking/lending technology programme at a financial services client. Oversee ~20 engineers across 3-4 feature teams using Java, Spring Boot, React/React Native, and cloud-based solutions. Drive DevOps, CI/CD, secure coding, and platform modernisation.

You will work with Cisco Contact Centre, Cisco Finesse, Microsoft Teams Calling, IVR, Verint, NICE WFM, eGain Webchat, Call Miner, Dubber, Qualtrics and test automation frameworks, driving AI-enabled testing. You lead end-to-end test delivery, governance and automation for a Contact Centre and Telephony Transformation programme.

Build and scale core APIs using Java, Kotlin, or Go, and build internal tooling with React and TypeScript for a leading audio streaming platform. You'll work on Trust & Safety platforms that handle content policy enforcement, compliance, and data pipelines feeding machine learning models.

Founding Product Platform Engineer working full-stack with Python, FastAPI, React, TypeScript, and SQL (BigQuery/Snowflake). Build the platform layer for a decision platform that helps high-stakes teams explore outcomes and understand uncertainty, translating complex AI workflows into repeatable B2B products. As the first dedicated product engineering hire, you will architect platform foundations including auth, permissions, and APIs.

Optimize ML inference for edge accelerators and GPUs using TensorRT, CUDA, Qualcomm QNN, Triton, OpenCL, MLIR, ONNX, Python, and C++. You will run large transformer-based models efficiently on low-power edge devices to enable Wayve’s first driving product.

Little Dot Studios★4.0 (2)· London

You'll use G-Suite including Sheets, and Asana or equivalent project-management software. You'll research and fact-check scripts for a new YouTube channel launching in 2026 on the history of business and money, sourcing archive materials and briefing graphics.

This role uses PyTorch and optimisation toolchains like TensorRT, CUDA, Qualcomm QNN, Triton, or OpenCL. You will deliver production-ready model releases for Wayve’s Embodied AI products that enable automated driving.

Deloitte★3.9 (14k)· London

You will work with Azure (ADF, Synapse, Fabric, ADLS Gen2, Cosmos DB, AI Search), Python, SQL, and CI/CD/DevOps. You join Deloitte's Digital Innovation team to build end-to-end data pipelines and enable AI/GenAI use cases for Tax & Legal stakeholders.

You'll work with React, TypeScript, Node.js, Next.js, GraphQL, Postgres, and AWS on an AI-native platform that empowers private investors to manage their portfolios.

Senior Full Stack Engineer working with Python (Django, FastAPI), TypeScript, React, Astro, Svelte, PostgreSQL, AWS, Terraform, and frontier AI models via Amazon Bedrock. Build and scale AI products within small cross-functional teams, owning everything from infrastructure and APIs to user-facing interfaces. Hands-on role with significant ownership, including mentoring and shaping technical direction from discovery to deployment.

You will work with Svelte, TypeScript, Python, FastAPI, Django, PostgreSQL, and AWS. Tab is a YC-backed London startup building a payments and discovery platform for independent tourism businesses. You will join a lean team of nine as one of the first developers.

Lead projects developing scalable web apps for global financial clients using React, TypeScript, modern CSS (Flexbox/Grid, SASS, Material UI), Redux, Webpack, and Jest/Mocha. You will mentor engineers, drive front-end strategy, and work with DevOps/CI/CD and containerisation (Docker/Kubernetes).

You will work with C#, .NET, Angular, Python, REST APIs, SQL/NoSQL, Docker, Kubernetes, Git, and CI/CD. The company develops highly secure software for mission-critical environments within defence, government, or national security. You will join a small, collaborative engineering team.

You will work with Python, FastAPI, PostgreSQL, ClickHouse, OpenAI, Anthropic, and production APIs. The team builds the Bloomberg of Private Markets, providing AI-powered discovery of investment opportunities for 300+ VC and PE firms. You will build backend infrastructure powering new AI features.