1 to 25 of 224 Permanent Next.js Jobs in London

using either Python with **FastAPI**, or TypeScript with **Express** or equivalent* **Frontend Development**: Experience in building React applications using TypeScript, leveraging frameworks such as **Next.js** or **Vite**.* **GenAI Frameworks**: Familiarity with tools like **LangChain**, **LangGraph**, **CrewAI**, or **Vercel AI** (in Python or JavaScript).* **LLM experience**: Practical experience with ...

writing maintainable Python and Typescript, including experience of working with relevant libraries for data processing and backend API development (i.e., FastAPI, Pydantic, expressJS, NodeJS, NextJS API Router, etc) Good understanding of cloud deployment Strong understanding and proven experience working with browsers and web APIs including HTML Canvas, Drag and Drop ...

from you: Technical Skills Strong knowledge of Typescript and Node.js. Knowledge of modern frontend development, including JavaScript/TypeScript with frameworks like React or Next.js, and experience building intuitive, user-focused interfaces Experience designing and implementing backend systems Prior experience with Azure (ideally), AWS or GCP. Comfortable working with Infrastructure ...

working collaboratively with technical and non-technical team members and stakeholders Hands-on experience and willingness to learn across frontend (TypeScript, React, Angular, Vue, Next.js, Tailwind), backend (Python, Node.js, Java/Spring, C#/.NET), and databases (SQL, NoSQL, vector databases, ETL) Experience with LLM frameworks, prompt orchestration, agent frameworks ...

quality, secure, and maintainable features for the client Digital Onboarding Service using Python on the backend in a serverless and containerized architecture with a NextJS/React client frontend. Design, develop, and maintain scalable RESTful APIs and microservices using Python frameworks such as FastAPI or Flask. Build and support cloud ...

working collaboratively with technical and non-technical team members and stakeholders Hands-on experience and willingness to learn across frontend (TypeScript, React, Angular, Vue, Next.js, Tailwind), backend (Python, Node.js, Java/Spring, C#/.NET), and databases (SQL, NoSQL, vector databases, ETL)Experience with LLM frameworks, prompt orchestration, agent frameworks ...

well as technical and non-technical people within software teams Hands-on experience and willingness to learn across frontend (TypeScript, React, Angular, Vue, Next.js, Tailwind), backend (Python, Node.js, Java/Spring, C#/.NET), and databases (SQL, NoSQL, vector databases, ETL) Experience with LLM frameworks, prompt orchestration, agent frameworks, MCPs ...

Expertise*** Backend Development: Deep experience building production microservices, ideally Python or TypeScript.* Frontend Development: Strong experience with React and TypeScript, using frameworks such as Next.js or Vite.* AI and Agentic Systems: Hands-on experience designing and deploying agentic architectures using frameworks such as LangChain, LangGraph, CrewAI, or the Anthropic Agent ...

software features. Strong problem-solving skills and the ability to collaborate effectively within a cross-functional team. Desirable Experience Modern web development frameworks, particularly Next.js, React and TypeScript. Google Cloud Platform services, especially BigQuery. Enterprise authentication and authorisation, including SSO, SAML, OAuth and role-based access control. Developing and optimising ...

Strong problem-solving skills and the ability to communicate technical decisions to both technical and non-technical stakeholders. Desirable Experience Modern web development using Next.js, React and TypeScript. Google Cloud Platform services, particularly BigQuery and Cloud Run. Enterprise authentication and authorisation, including SSO, SAML, OAuth and role-based access control. ...

Frontend & UI Engineering: Lead the architecture and implementation of responsive, accessible (WCAG 2.1 AA), and performant web applications using modern frameworks (e.g., React, TypeScript, Next.js/Angular) and enterprise design systems. Fullstack Integration & API Design: Lead end-to-end integration by designing, consuming, and optimizing RESTful APIs, GraphQL endpoints, Backend ...

Agile environment You will have an extensive background in front-end development with significant experience working with ReactJS. Any further experience with Next.js/Angular/Vue.js is beneficial You will have some exposure to Python, contributing to the design, build, and support of scalable and secure full-stack ...

might thrive in this role if: You have strong full-stack experience - you’re comfortable building APIs, writing database queries, and shipping React/Next.js UIs You’ve built production services with FastAPI or similar frameworks You understand dependency management and packaging - you’re comfortable with uv , pyproject.toml , editable installs ...

software services using languages such as Java, JavaScript, TypeScript, Python or C++ Building full‐stack applications using frameworks such as React, Node.js, Spring Boot, Next.js or similar Designing and developing APIs, microservices and backend services for secure mission systems Integrating applications with cloud, data, analytics and streaming platforms Supporting ...

platform health and strategic directionExperience using developer productivity tools such as GitHub Copilot and Claude Code (or similar)Front-end development experience using: TypeScript, Next.js, ReactWhat you'll be like: Practical and delivery-focused, with a bias for making progress and learning quicklyCalm, resilient and positive during high-pressure periods ...

workflows, and data-processing solutions. FastAPI – Architecting asynchronous APIs and event-driven microservices. TypeScript/JavaScript – Delivering robust, maintainable frontend and full-stack applications. Next.js/React – Building high-quality production applications with a focus on performance and user experience. PostgreSQL/Redis – Implementing efficient data models, optimised queries, caching ...

other engineers, championing code quality through thoughtful reviews and shared best practices Design and implement responsive, user friendly web interfaces using modern JavaScript frameworks (Next.js, React) Partner with UX/UI designers to bring designs to life as functional, intuitive experiences About You Strong expertise in JavaScript frameworks such ...

within your team Collaborate with your peers on technical direction within your team Requirements/knowledge (you don't need everything) JavaScript frameworks (React, NextJS) TypeScript Python Java REST API development OpenAPI/Swagger Cloud services (AWS or Azure) Containerisation & Orchestration (Docker, Kubernetes, OpenShift) Infrastructure as Code (Terraform, Ansible) Relational ...

appreciate you may not be an expert in every area above - we can support with training and development in some areas! JavaScript frameworks (React, NextJS) TypeScript Python Java REST API development OpenAPI/Swagger Cloud services (AWS or Azure) Containerisation & Orchestration (Docker, Kubernetes, OpenShift) Infrastructure as Code (Terraform, Ansible) Relational ...

Computer Science or a related quantitative field 5+ years of post‐graduation, full‐stack engineering experience with demonstrated proficiency in React (required), TypeScript, Next.js, Python, Node.js, PostgreSQL or MongoDB plus hands‐on experience with Docker, Kubernetes, and Azure/AWS/GCP. Proven ability to architect scalable, production‐grade applications ...

highly scalable serverless and/or microservice architecture that is deployed via Terraform into AWS. Key technologies in this framework include React, Typescript, Next.js, Python, C#, SQL, Docker, Terraform and AWS. You will be expected to take ownership of projects and find gaps in design with Blackstone product managers. ...

along with the adaptability and curiosity to learn new tools as projects demand.* Languages & Frameworks: Python (3.10+), TypeScript, JavaScript (ES6+), SQL, Bash · Frontend: React.js, Next.js (App Router & Server Components), Tailwind CSS, ShadCN UI, Redux, Zustand, Jest, Cypress.* Build AI product UX patterns (streaming, review loops, provenance/citations, long-running ...

even better. The work is a mixture of green-field and legacy projects (much like any other mature organisation) mostly using C#, SQL Server, Next.js, React & TypeScript, with a combination of monolithic and microservices architectures. Key Responsibilities We are looking for technically strong and organised senior developers to join ...

development tools such as Claude Experience developing REST API-driven mobile first web applications Experience of frontend application development, with a focus on React.js, Next.js and TypeScript Jira, Bitbucket, Git Flow, Confluence, Azure Devops, Azure App Centre, Service Bus Explorer, SSMS and agile software development process/practices and other ...

workflows. Enhance the availability of our main services Strengthen the security and reliability of our entire system Our stack Infrastructure: AWS, Terraform Frontend: Vercel, NextJS, React/Redux, Testcafe (or similar, Cypress, Playwright) Backend: TypeScript, Vitest, TypeORM, Python, FastAPI, SQLAlchemy, pytest, Docker Compose Experience and Skills Experience as a full ...