be doing: Developing high-quality backend services in Python (FastAPI, Django or Flask). Building and maintaining front-end components in TypeScript (React or Next.js). Designing RESTful and GraphQL APIs. Writing clean, testable code with CI/CD pipelines. Working in an agile, collaborative team environment. What we’re looking for: 2+ years’ experience with Python and TypeScript in More ❯
the development process Essential Technical Skills Language - JavaScript, NodeJS, Typescript Framework - NestJS/Express/Microservices Testing - Jest/Mocha/Cypress/React testing Library API – OpenAPI/GraphQL/GRPC Messaging - AMQP/RabbitMQ/Kafka Data Storage - MongoDB/Mongoose Web UI - Angular/ReactJS/Svelte/Webpack/HTML/CSS Security - Oauth2 Build Tools More ❯
Solid software engineering background with proficiency in Python, JavaScript/TypeScript, Java, or Go Experience with modern frameworks (React, Node.js, Django, FastAPI) Knowledge of microservices architecture, API design (REST, GraphQL) Experience with containerization (Docker, Kubernetes) and cloud-native development patterns DevOps & SRE Practices Experience implementing CI/CD pipelines and DevOps methodologies Knowledge of infrastructure monitoring (Datadog), log aggregation, and More ❯
City of London, London, United Kingdom Hybrid/Remote Options
Areti Group | B Corp™
tech. 🧠 What You’ll Be Working On: Designing and building scalable backend systems using Python Collaborating on full-stack features with TypeScript and JavaScript Creating and integrating RESTful and GraphQL APIs Working with Docker, Kubernetes, and cloud infrastructure (AWS) Developing within a microservices architecture Solving complex problems in data flow, latency, and scale Contributing to a culture of fast iteration More ❯
series) Proven ability to design and implement large-scale, modular, and maintainable architectures (Domain-Driven Design, Hexagonal/Clean Architecture preferred) Strong experience in API architecture and design (REST, GraphQL, OpenAPI) Deep knowledge of database architecture, query optimization, and performance tuning (SQL and NoSQL) Proven experience designing and maintaining CI/CD pipelines (TeamCity, GitHub Actions, or similar) Proficiency with More ❯
distributed technology stack, with exposure to SQL. Required Skills and Experience Proven experience as a Frontend Developer, with a strong portfolio showcasing React and TypeScript projects. Solid understanding of GraphQL and its implementation in frontend applications. Excellent proficiency in JavaScript (ES6+), HTML5, and CSS3. Experience with state management libraries (e.g., Redux, Context API). Familiarity with testing frameworks (e.g., Jest More ❯
professional software engineering experience, ideally working on backend systems, APIs, or AI-related products Proficiency in Python and JavaScript/TypeScript (Node.js) Strong understanding of backend architectures, REST/GraphQL APIs, and data modelling Experience with containerisation (Docker) and cloud platforms ( GCP , AWS , or similar) Familiarity with LLM or AI APIs Exposure to agentic frameworks (LangChain, LlamaIndex, Semantic Kernel, etc. More ❯
SR2 | Socially Responsible Recruitment | Certified B Corporation™
experience with AI tools or data driven product features Nice to have • Experience in regulated or compliance heavy environments • Knowledge of security and data privacy best practices • Familiarity with GraphQL, data visualisation or design systems • Experience collaborating with data or clinical teams 📍 London (Hybrid) 💰 Competitive salary and equity potential If you’re excited about building Full stack products that use More ❯
engineering team. What You’ll Do Design and build scalable backend and fullstack solutions in Node.js, TypeScript, React, AWS Collaborate closely on architecture, data models, and API design (REST, GraphQL, tRPC, WebSockets) Balance speed with long-term maintainability — quality and performance matter here Work on innovative challenges across document parsing, data visualisation, and ML integration Who You Are 5+ years More ❯
Design and develop backend services using Node.js/Nest.js and TypeScript . ->Architect and optimise data models and infrastructure within PostgreSQL . ->Build and maintain APIs and integrations (REST, GraphQL, tRPC, WebSockets). ->Collaborate with front-end teams using React to deliver complete features. ->DevOps best practices, including Docker , Kubernetes , and AWS for deployment & CI/CD. ->Support high engineering More ❯
City Of London, England, United Kingdom Hybrid/Remote Options
SGI
model with 3 days per week in the office. 💷Highly competitive package + bonus + benefits What You’ll Bring Strong experience with React, TypeScript, Redux, Apollo Client , and GraphQL/REST APIs . Experience working in a cloud-native environment ( AWS or Azure ). Familiarity with data streaming (WebSockets, chunked responses) and front-end performance optimisation . Strong understanding More ❯
City of London, London, United Kingdom Hybrid/Remote Options
Bounteous
back-end development - Solid experience with Angular (preferably Angular 15+) - Hands-on experience with Next.js and React ecosystem - Familiarity with MongoDB, PostgreSQL, or other databases - Knowledge of RESTful APIs, GraphQL, and WebSockets - Experience with Git, CI/CD pipelines, and cloud platforms (GCP) Nice to Have: - Experience with Docker and container orchestration (e.g., Kubernetes) - Familiarity with testing frameworks (Jest, Mocha More ❯
across product, backend, and infrastructure. The role They’re hiring Senior Full-Stack Engineers (backend-leaning, ~65/35) to help scale intelligent, high-performance systems across: Node.js, TypeScript, GraphQL AWS serverless architecture React (supporting product UI work) Postgres, Redis, and modern tooling You’ll have significant ownership, working directly with founders and product to design and ship features that More ❯
City of London, London, United Kingdom Hybrid/Remote Options
Tenth Revolution Group
/web development Strong with React, Vue, or similar Back-end skills in Node.js, PHP, Python, or JavaScript Experience with headless CMS (Sanity, Contentful, etc.) API design (REST/GraphQL) and Git workflows Knowledge of SEO, accessibility, responsive design Experience with tracking, MarTech tools, and automation platforms (n8n/Zapier/Make/AI) What’s Offered Competitive salary Fully More ❯
City of London, London, United Kingdom Hybrid/Remote Options
Bounce Digital
Title: Software Engineer (Fullstack) Salary/Package: £70k-£90k + Equity Company Sector: Fintech (Sustainability) Tech: TypeScript, Node, React, Next, GraphQL Location: Central London (London Bridge/Bank) WFH/Hybrid: 3 days a week on site Bounce are partnering with a customer who we've already placed x 3 software engineers with. We've known the CTO for years More ❯
City of London, London, United Kingdom Hybrid/Remote Options
Harrington Starr
Required Skills & Experience: Proven E2E test automation experience using Playwright, Cypress, or Selenium. Expertise in UI testing (visual regression, responsive design, cross-browser). Strong API testing (REST/GraphQL) – automated and manual. Proficiency in JavaScript/TypeScript; Python experience is a plus. Solid understanding of Unix/Linux, SQL, and relational databases. Prior exposure to financial markets, ideally in More ❯
SQL Server, or PostgreSQL. Knowledge of CI/CD principles and Agile/Scrum development practices. Excellent communication skills and a proactive, solution-focused mindset. Desirable extras: Experience with GraphQL , gRPC , Kafka , or Reactive Extensions (RX) . Exposure to the energy, commodities, or financial services sectors. This is an opportunity to contribute to an ambitious, data-driven organisation where your More ❯
infrastructure, APIs, complex database queries, ML models. Learn, use, and improve best practices and processes for high-quality software development. Our technology stack includes Python 3.11, PostgreSQL, Django, mypy, GraphQL, Docker, Redis, Typescript, React. Qualifications We’re only considering exceptional candidates, with the following pre-requisites: 5+ years of professional software development experience. 2+ years of professional experience in Python. More ❯
City of London, London, United Kingdom Hybrid/Remote Options
Formula Recruitment
software engineering with a strong grasp of API design, cloud architecture, and scalable system design. Hands-on coding experience with modern technologies including Typescript (Node.js/React), AWS, Kubernetes, GraphQL, Kafka. Track record of working directly with clients on technical solutions, RFPs, and complex integrations. Ability to build prototypes and proof-of-concepts that validate ideas and showcase value. Expertise More ❯
City of London, London, United Kingdom Hybrid/Remote Options
CLIQ
as we grow user adoption. What We’re Looking For Strong full-stack background with Node.js, TypeScript, React, and ideally React Native. Experience with frameworks/tooling like Express, GraphQL, Vite, React Query, Context API, and modern CSS frameworks. Solid understanding of API design, databases, and cloud deployments. Experience taking products from zero to one, ideally in a startup environment. More ❯
Hiring: GraphQL Full Stack Engineer - TypeScript | Cloud-Native | Contract (Outside IR35) 🚀 Expert level in GraphQL 📍 West London HQ | Hybrid (1–2 days on site) | Outside IR35 | 6-month initial contract (extensions likely) GraphQL-focused Software Engineer who can design, implement, and evolve high-performing APIs that scale. If crafting elegant GraphQL schemas, building robust TypeScript/Node.js services, and deploying … to cloud-native environments is your idea of fun, this is your next project. Deliverables Design & develop GraphQL API services from schema, supergraph, subgraph design to production integration, ensuring performance, flexibility, and maintainability. Build scalable TypeScript, Node.js services that integrate seamlessly with modern frontends and data sources. Apply DevOps best practices to deliver through CI/CD pipelines (Jenkins, Concourse … Kubernetes. Collaborate in Agile teams, driving API strategy, reviewing pull requests, and improving delivery processes. Ensure APIs are secure, observable, and performant at scale. Experience Strong production experience with GraphQL - from designing graph, supergraphs, subgraphs resolvers to versioning and evolving APIs. Proven skills in TypeScript and Node.js Back End development. Familiarity with testing frameworks (Vitest, Playwright) for both API and More ❯
one of OB's clients in the retail space. Proven experience in end-to-end ML deployments, including GenAI models, into scaled production systems. Skilled in building RESTful and GraphQL APIs for integrating GenAI systems with front-end and back-end platforms (UI, order systems, data stores). Strong problem-solving skills; capable of delivering scalable, maintainable software. Effective communicator More ❯
analytical and problem-solving skills. Good communication skills and ability to work collaboratively. Desirable: Experience with BDD/TDD methodologies. Familiarity with API testing and tools such as Postman. GraphQL Knowledge of testing frameworks like Jest or Mocha. What We Offer: A collaborative and supportive work environment. Flexible working arrangements (remote or hybrid). Career development opportunities and training support. More ❯
and its architecture, ensuring performance, usability, and resilience. Bring strong views on frontend patterns, API design, and how the frontend and backend fit together (they currently use Python, REST, GraphQL, microservices). What They Are Looking For: Proven expertise in JavaScript and React, including modern practices and shadcn experience. A track record of building products from scratch or pivoting products More ❯