Superdrug★3.3 (3k)· London

Design polished, accessible, development-ready digital experiences for Superdrug’s website and mobile app using Figma (including components, variants, and design system patterns). Own product-design projects from problem definition through wireframing, prototyping, and high-fidelity UI, collaborating with developers, product teams, and analytics.

You'll work with Python, FastAPI, Postgres, Docker, SQL, LLM tool-calling/agentic loops, RAG, and observability tooling like MLflow, building evaluation frameworks and test harnesses for LLM-as-judge and monitoring. The role owns inference quality for Orbital, an agentic LLM platform answering operational questions for energy and heavy-industry clients.

Geomiq★0.0· London

You'll build AI agents and automations using n8n, GPT, Claude, Gemini, and other LLMs, plus APIs, webhooks, SQL, Python, and JavaScript. As the first dedicated AI builder at Geomiq, you'll create internal tools to automate workflows across Sales, Operations, Supply Chain, Finance, and Product for their digital manufacturing platform.

Build and own the in-house automated testing platform at a leading global Hedge Fund, working across the full stack with React, JavaScript, and Python. Integrate with the toolchain for requirements management, source control, and transactions data, using GCP, Terraform, and CI/CD. Drive the platform toward agent-orchestrated, predictive testing, working autonomously within a small, efficient QA function.

RBC★3.9 (5.5k)· London

You will drive the BI team's transition from Power BI to custom Databricks Apps, using React/Vue/Angular, REST, GraphQL, MCP, and DevOps tools (Git, CI/CD, GitHub Actions/Azure DevOps). You will build user-facing data visualisations and interactive analytics. You will mentor engineers and set technical standards.

RBC★3.9 (5.5k)· London

You will design, build, and maintain REST and GraphQL APIs and MCP servers using Python (FastAPI, Flask) serving ML models from Databricks for internal apps, CRM platforms, AI agents, and LLM applications. You will build middleware, prototype applications, and mentor junior colleagues in a team reporting to the Director, Data Science.

You will work with Azure, CI/CD pipelines, and test automation to build component-oriented front ends. As a Lead Engineer on the Digital Product Team at Canada Life UK (a financial services firm), you will set UI/UX, accessibility, and front-end performance standards and coach engineers across the product lifecycle.

You will build a fully bespoke blockchain from scratch using Rust, C++, CUDA, Python, Shell for the protocol layer; Solidity, Foundry, Hardhat for smart contracts; and TypeScript with React, Next.js, Node.js for frontends. This greenfield project powers Arena Entertainment’s digital entertainment platforms, spanning gaming, DeFi and Web3.

Boston Consulting Group★4.2 (537)· London

You will work hands-on with Python (FastAPI), LLMs (OpenAI, Gemini, Anthropic), cloud-native development on AWS, and CI/CD pipelines. As a player-coach in an AI/ML squad at Boston Consulting Group, you will build and deliver GenAI products leveraging RAG, agentic workflows, and MCP servers. You will lead and mentor a team of engineers, acting as both a contributor and architect.

Zaizi★4.0 (5)· London

Building mission-critical web apps, APIs, and microservices (TypeScript, React, Node.js, Python) plus native Android/Kotlin tactical systems with AIDL IPC and CoT routers for MoD programmes. Working on edge platforms (TAK) with CI/CD (Docker, GitLab CI) and NCSC Secure by Design standards. Mentoring mid-level engineers.

Lush Cosmetics★3.9 (3.4k)· London

Backend QA Engineer at Lush's Digital team, part of a global platform transformation. You'll test GraphQL/REST APIs, microservices, and databases (PostgreSQL, MySQL, MongoDB) using TypeScript/Python, Docker, CI/CD, Kafka/RabbitMQ, k6/JMeter, and security standards like OWASP. The cross-functional team ensures server-side reliability and scalability.

Google★4.3 (6.2k)· London

You will work with C++, Java, Kotlin, TypeScript, front-end frameworks, API development, machine learning, agentic coding, and GCP. This role is in Google Labs Science, which partners with DeepMind to transform GenAI research (e.g., Co-Scientist, AlphaEvolve) into products that accelerate scientific discovery.

Backend Developer role using Java/Spring Boot, REST/GraphQL APIs, PostgreSQL, MongoDB, Kafka, AWS/Azure, Docker/Kubernetes, and CI/CD tools, plus Agentic AI frameworks like LangChain and LLM APIs. The company is a digital consultancy delivering technology solutions for UK government departments, working in Agile/Scrum teams. The role involves building scalable services and integrating AI agents into backend systems.

Guiding Reset Health's Live Platforms team, this role combines hands-on development in React Native and Kotlin with scrum master duties. The team delivers production releases in two-week sprints, handling customer setups, enhancements, bug fixes, and 2nd line support using Mongo, Git, CI/CD, Jira, and REST APIs.

Design product experiences across Superdrug’s website and mobile app using Figma, wireframing, prototyping, and design-system components. You will own UI/UX projects from problem definition through implementation, collaborating with developers, analysts, and product teams.

You will work with n8n, GPT, Claude, Gemini, and other LLMs, using APIs, webhooks, SQL, Python, and JavaScript to build production-ready AI agents and automations. Geomiq operates a digital manufacturing platform connecting engineers with global partners, and you will automate workflows across Sales, Operations, Supply Chain, Finance, and Product teams as their first dedicated AI builder.

You’ll work hands-on with React, JavaScript, Python, GCP, Terraform, Git, and AI/ML tooling. As part of ace, you’ll own the build-out and enterprise adoption of a leading global hedge fund’s in-house automated testing platform, with full-stack development, CI/CD, and governance. You’ll mentor a small QA function transitioning from manual testing.

Build Python (FastAPI/Flask) features for the NHS Digital Onboarding Service (DOS) within a serverless architecture, paired with a NextJS/React client frontend. The service is part of the NHS API Platform.

Development Team Lead role balancing hands-on coding with scrum master duties, using React Native, Kotlin, React Web, Java, Mongo, Jira, Git, CI/CD, and REST APIs. The team handles customer customisations, enhancements, bug fixes, and 2nd-line support for Reset Health's Live Platforms, releasing every two weeks. Mentorship and agile ceremony facilitation are core to the position.

Backend QA Engineer role at Lush Digital, testing GraphQL/REST APIs, databases (SQL/NoSQL), and microservices using TypeScript or Python, with tools like Postman, k6/JMeter, Kafka/RabbitMQ, Docker, and CI/CD pipelines. The team ensures backend reliability, security, and performance across Lush's global digital platform transformation.

Senior UI Software Engineer role at Citi building trading GUIs for the Foreign Exchange business, covering full development lifecycle with technical leadership. You will use TypeScript, React, JavaScript, HTML5/CSS, FDC3, REST/WebSocket APIs, Kafka/Solace/Tibco, and CI/CD tools like Jenkins, with desktop container experience in Chromium/Electron/OpenFin.

You will use Python, JavaScript, Microsoft 365, Power Platform (Power Apps, Power Automate), and APIs to design, build, and enhance internal applications, automations, and AI-powered solutions. This role supports a technology-led company investing in AI and automation by developing internal tools that improve business efficiency and productivity.

You'll work with Azure-hosted solutions, automated CI/CD pipelines, and test automation, building accessible, component-oriented front ends meeting WCAG 2.2 AA standards. You'll help lead Canada Life's Digital Product Team, modernizing its IT estate by delivering customer-centric digital products across the full lifecycle. You'll be one of several Lead Engineers, but team size isn't stated.

You will work hands-on with React Native, Kotlin, MongoDB, Jira, Git, CI/CD, and RESTful APIs, acting as scrum master for Reset Health’s Live Platforms team. The team delivers production releases every two weeks, handling customer customisations, enhancements, bug fixes, security patches, and 2nd-line technical support.

You will work with LLMs, chain-of-thought prompting, RAG architectures, multi-agent tool use, Python, and FastAPI to build cognitive systems. The Science team designs memory and decision-making frameworks to create synthetic populations for behavioral prediction.