Lead, coach, and mentor engineers using Java and JavaScript frameworks. The client is a healthcare provider building modern, scalable products to deliver world-class patient experiences across the UK as part of a digital transformation.

Build features with React, TypeScript, and Python or Node.js, designing data pipelines and analytics for a database of 9M+ clinician profiles. G LNK is an AI-powered healthcare commercial intelligence platform using LLMs, vector search, and semantic retrieval to connect pharma with medical experts. You'll work directly with the CTO and CEO.

This Junior Software Engineer role uses Python, Node.js, PostgreSQL, MongoDB, React, and AWS to build backend services, APIs, and frontend applications while supporting commercial machine learning model deployment.

Use Java 17+, Spring Boot, Oracle SQL, document-store databases, Kubernetes, Jenkins, and GitHub Copilot to build high-performance, mission-critical systems that provide end-to-end visibility into payment lifecycles for an investment bank. You will also mentor junior engineers, conduct code reviews, and design scalable back-end solutions.

You'll work with Java (8, 17, 21), React/TypeScript (or Angular/Vue), and REST APIs to sustain current environments and deliver new capabilities across full-stack development. You will also mentor less experienced engineers through code reviews and technical guidance.

Tech Lead role using Java, Kotlin, Python, JavaScript/TypeScript, Spring, and Node.js to build cloud-based digital banking solutions. The consultancy helps clients build, launch, and run digital banks. You lead a team of engineers, contributing to system architecture, coding, and strategic decisions.

You will work with ReactJS, NodeJS, MongoDB, and AWS. The team builds a web-based SaaS platform for private equity, venture capital, and alternative investment firms to manage investing, fundraising, and operations. This senior role includes leading and mentoring junior engineers.

KPMG★3.8 (9.9k)· London

Develop web applications using C#, ASP.NET Core, TypeScript, React or Angular, and deploy on Azure Kubernetes Service with containers. You'll work on modernising tax and legal services for KPMG, building cloud-first microservices and client-facing portals for a team of 300+ technologists.

GUARDIAN NEWS & MEDIA★4.6 (7)· London

Build the Guardian Android app using Kotlin, Java, Jetpack Compose, Coroutines & Flow, MVVM, Jetpack libraries, and modular architectures. As a Staff Engineer on the Apps Experience team, you will shape technical direction, architecture, and engineering standards across multiple teams for an app used by millions.

Work with Kotlin, Java, Python, TypeScript, Kafka, Flink, Redis, and clustered Postgres on AWS/GCP to design, build, and maintain backend services for a real-time, data-driven commodity trading platform. You will own features end-to-end, optimizing pipelines for low latency and high throughput.

You will build scalable backend services using Go, Python, Rust, React, Kubernetes, Docker, and cloud platforms (AWS, GCP, Azure). The Core Platform team develops foundational services like authentication, APIs, and multi-tenancy that power Lightning AI Studio and support AI application development.

You will use React, front-end technologies, iOS/Android, Java with Spring Boot, REST APIs, Kafka, IBM MQ, and apply TDD and automated testing within Agile and DevOps practices. As part of a permanent feature team, you will design, produce, and test software for a platform, collaborating with engineers and stakeholders to support business objectives.

Senior engineers at Great Yellow design and own data pipelines (ETL, dbt, SQL) and write production code in a Cloudflare-native TypeScript/React monorepo. The team builds the data and software platform that powers a system for making regenerative land-use investable and scalable.

Build production AI products using LLMs, Agentic AI, RAG, and retrieval systems with Python or TypeScript on AWS, Azure, or GCP. You will design cloud-native architectures, evaluation pipelines, and work directly with customers to solve operational problems for industrial manufacturing, energy, and construction companies. The small engineering team ships products from 0 to 1.

You will work with Python 3.11, PostgreSQL, Django, mypy, GraphQL, Docker, Redis, Typescript, React and Apollo. The team builds a software engine that automatically generates complete circuit board designs from requirements, aiming to automate hardware design. You’ll own back-end development and collaborate with other lead engineers.

Zuora★3.6 (33)· London

You'll develop Zephr, Zuora's AI-powered subscription experience platform for digital publishers, using Java (JDK 21+), Kotlin, JavaScript/TypeScript, React, and a microservices stack including Vert.x, Spring, Kafka, MySQL, AWS, and Kubernetes. The role spans frontend, backend, and API design (REST, gRPC, GraphQL) for a high-throughput, multi-tenant public application, requiring strong testing practices, security knowledge (OAuth2, SAML, JWT), and production observability skills.

You will work with TypeScript, React, Node.js, Python, and Google Cloud/AWS, building LLM-powered workflows, intelligent pipelines, and agentic systems. As the most senior individual contributor at Steven.com, you own the architecture of the company’s highest-stakes, complex systems for its creator-economy operating system. This founding-team role sets the technical bar for the whole engineering organization.

Senior Software Engineer role at Bauer Media Outdoor, working with React, Next.js, TypeScript, Node.js, Python, serverless architectures, Postgres, DynamoDB, AWS (Lambda, CloudWatch, API Gateway, S3), and Terraform. The engineer will build ad tech and programmatic buying platforms for outdoor advertising, guide system design, and mentor engineers.

You'll work with Python, TypeScript, React, AWS, and DevOps tools to build scalable software for Abtrace's primary-care platform, which helps 500+ UK practices proactively manage care for 4.5M patients. You'll own technical planning and delivery in a cross-functional squad.

You'll work with TypeScript, React, Node.js, Python, JavaScript, SQL/NoSQL databases, and AI/ML tools including LLM-based APIs. Steven.com builds an operating system for the creator economy, and you'll ship end-to-end features across internal and external products.

Work with React/Next.js/TypeScript, Python, LangChain/LangGraph, vector and graph databases, embeddings, RAG pipelines, and coding agents (Codex/Claude Code) to build an agentic AI platform for sustainability decision-making. The platform ingests fragmented environmental data, runs scenario analysis, and recommends actions while building a knowledge graph.

You'll work with TypeScript, React, Next.js, Node.js, Express, and PostgreSQL. The team builds financial products for African businesses, including automated payouts, payment automation, and invoice processing. You'll join a small, high-performing team shaping the product vision and technical architecture.

Staff Full Stack Engineer at Capi, working with Typescript, React, NextJS, NodeJS, Express, and PostgreSQL. The role involves building and scaling a platform for African businesses, contributing end-to-end from UI to backend logic, and working closely with the founding team in London and Paris.

You'll work with Java 21, Spring Boot 3, event-driven microservices on AWS (EC2, RDS, SQS, SNS, SES, Cognito), PostgreSQL, Docker, and GitHub Actions CI/CD, using AI tools like Claude Code. Aslan builds the back-end systems that power payroll and payments for companies and their employees.

You'll use Go, gRPC, HTTP, Docker, and observability tools like Prometheus and Grafana on a modern containerised AWS stack with MySQL, DynamoDB, Redis, and Elasticsearch. The backend team designs, builds, and supports high-traffic APIs and internal tools for a community safety platform, processing tens of millions of analytic events daily with event-driven architecture and machine learning.