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 will work with Java microservices, Spring Boot, Python, SQL, Snowflake, dbt, Airflow, LangChain, Sagemaker, and MLflow. The data science team builds ML solutions for risk-based decisioning, pricing, and operational automation in insurtech/fintech. This is a hands-on leadership role—you will lead and develop the team while setting technical standards.

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.

You will build a bespoke blockchain from scratch using Rust, C++, CUDA, Solidity, TypeScript, React, and Node.js. Arena Entertainment builds digital entertainment platforms including MetaWin and WOW Vegas, and is creating a new blockchain for gaming and DeFi.

Work with Java Spring, Web3J, Web3JS, Solidity, Git, Jira, Jenkins, Helm Charts, and DevSecOps tooling. You will build the backend of enterprise-grade web applications for Citi’s Integrated Digital Assets Platform (CIDAP), leveraging blockchain technology.

Build backend services for Citi’s Integrated Digital Assets Platform using Java, Spring, Web3J/Web3JS, and Solidity. Work on blockchain integrations, node connectivity, smart contracts, and microservices. This is a lead engineering role on the core team.

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.

Build Web3 components and smart contracts in Solidity for Citi’s Digital Assets Platform, integrating with Ethereum, Hyperledger Besu, Solana, or Canton using Java/Spring, Node.js, and Web3 libraries like Web3J, Ethers.js, or Viem. The team develops tokenization, on-chain settlement, and blockchain protocol connectors for institutional digital finance.

FDM Group★2.9 (270)· London

Java, Spring Boot, React/React Native, AWS, microservices, RESTful APIs, CI/CD, SQL, TDD/BDD. The role is within a key engineering team delivering strategic lending and banking technology initiatives for a financial-services client.

National Gas★0.0 (10)· London

Develop and maintain backend services using ASP.NET Core, REST APIs, SignalR, and WebRTC, with SQL Server/MariaDB, Entity Framework Core, and Dapper. Deploy on Azure (App Services, SignalR Service) with Docker and CI/CD pipelines. This role owns the backend architecture for existing web platforms and a new real-time operational system.

You’ll build cloud-native apps with C#/.NET and Azure, design Microsoft Fabric and Medallion data pipelines, handle ETL/ELT, SRE, and integrate LLMs via OpenAI/Azure OpenAI. Based at startup Lineten Ltd., you’ll join a small team enabling internal and external data self-service analytics.

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 will work with C#, .NET (.NET Core/8+), SQL

You will work with C#, .NET, Azure, GitHub Actions, Octopus Deploy, CI/CD pipelines, front-end frameworks, and observability tools like Azure Monitor, Datadog, or Grafana. As part of a cross-functional digital product team at Canada Life, you will build and run product features across the full stack, living a "you build it, you run it" philosophy.

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.

Work with Kotlin, SQL/noSQL, TensorFlow Lite, Coroutines, Flow, and REST/gRPC to build a production Android app for an AI-powered proactive smart assistant that handles multi-step workflows and real-world task completion.

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.

Lead Software Engineer role: leads a hands-on engineering team building greenfield applications using C#, .NET, Angular 16+ within a global energy trading company.

Build AI-enabled products using Python, TypeScript, Java or Go at a YC-backed AI start-up. Work directly alongside founders to ship customer-facing solutions and shape both product and engineering culture from day one.

You will work with Azure, CI/CD pipelines, test automation, and modern front-end frameworks/libraries, applying WCAG 2.2 AA and Core Web Vitals. As a Lead Engineer on Canada Life UK’s Digital technical leadership team, you will specialise in UI/UX, accessibility, and front-end performance for customer-facing digital products serving retirement, investment, and protection needs.

Junior Frontend Engineer role at Fortex, within Valton Sport Agency, working with HTML, CSS, JavaScript, and modern frameworks like React or Next.js. The team of designers, engineers, and strategists builds digital products, interfaces, and brand identities for clients. The role includes mentorship from senior engineers and work on real client projects.

VueJS 3, JavaScript (ES6), HTML5, CSS3 (SASS), RESTful APIs, GIT, Azure DevOps (CI/CD), Jest, Cypress/Playwright. Build and maintain modern web applications, developing reusable UI components and ensuring responsive, accessible, performant frontends.