1 to 25 of 147 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 ...

ExpertiseBackend DevelopmentExperience building microservices using Python with FastAPI, TypeScript with Express, or equivalent technologies.Frontend DevelopmentExperience developing React applications using TypeScript.Familiarity with frameworks such as Next.js, Vite, or similar.Generative AI TechnologiesExperience with Generative AI frameworks such as LangChain, LangGraph, CrewAI, Vercel AI, or equivalent tools.Practical experience working with Large Language Models ...

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 ...

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 ...

Strong understanding of software architecture and software engineering principles. Experience with one or more modern technology stacks such as: JavaScript/TypeScript React/Next.js Node.js PHP/Laravel .NET Java Good understanding of APIs and system integrations. Experience working with relational databases such as PostgreSQL or MySQL. Understanding ...

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 ...

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 with ...

e.g. Github Actions, Gitlab CI) for automating deployments· Other AWS Managed Services (RDS, Batch, Lambda, Fargate, Step Functions, SQS/SNS, etc.)· FastAPI and NextJS experience (if we’re still using the latter)· Websockets, Server-Side Events, Pub/Sub (RabbitMQ, Kafka, etc.)Who You'll Work With· Squad members ...

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 ...

Flask. We use FastAPI. Experience with Javascript/Typescript and a modern JS framework such as React, Angular or Vue.js. We generally use React & NextJS Strong engineering principles & practices: design patterns, testing, clean code and a good reviewer Previous experience working in a product-focused team A keen desire ...

particularly in building concurrent, memory-safe, and high-performance applications. Frontend Knowledge: Experience working with modern JavaScript/TypeScript frameworks (e.g., React, Vue, or Next.js) and a solid understanding of web fundamentals (HTML/CSS). Database Expertise: Deep knowledge of relational databases (PostgreSQL) and NoSQL stores (Redis, MongoDB), including ...

understanding of software architecture, security and engineering best practice. Comfortable working within an early-stage, fast-moving product environment. Nice-to-Have Experience with Next.js, FastAPI, PostgreSQL, AWS, Docker or infrastructure as code. Exposure to automated testing using Playwright or similar frameworks. Experience within healthcare, life sciences, regulated software ...

people today, growing fast. Based in East London (Shoreditch Exchange, Hoxton). Backed by cutting‐edge research and strong industry partnerships. Stack: TypeScript, React, Next.js, Express, Prisma, Python (PyTorch), PostgreSQL, Docker, Kubernetes, AWS, Terraform. What we’re building: At Polaron, we’re building the next generation of tools that enable ...

secure development practices Excellent problem-solving and communication skills Ability to work independently and manage multiple priorities Desirable Skills TypeScript, React and/or Next.js PostgreSQL Microsoft 365 and Microsoft Graph API AI, machine learning or Large Language Model (LLM) integrations CI/CD pipelines and Infrastructure as Code Experience ...

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 ...

Node.js Worked with GraphQL APIs Feature flagging/AB testing Appreciation/Exposure to React Native Knowledge of other JavaScript frameworks like Angular, Vue, Next.js, Gatsby. Familiarity with agile methodologies beyond Scrum. Delivery experience on cloud platforms and familiarity with AWS Experience with Design systems (UI Development, White-labelling) Commercial ...

need 8+ years of experience in full stack development, with expertise in JavaScript, HTML, and CSS.Expert in front-end frameworks such as React, Next.js, Tailwind.Experience in CMS platforms (such as Contentful and Sanity) and marketing tools (e.g. Google Tag Manager, Marketo) Experience in CI/CD tools (such as CircleCI ...

years of professional software engineering experience (or equivalent)Strong experience with Full-Stack development workflows/processes and front-end familiarity (JavaScript, React/Next.js)Able to utilise AI coding tools for increased velocityExperience with containerization (Docker) and version control (Git)Proven ability to integrate with CI/CD pipelines ...

from shipping features to debugging issues. Specific requirements : Backend experience with Node.js and/or Python (FastAPI, Flask) Experience with front end frameworks (React, Next.js, Typescript). Exposure to cross platform frameworks a plus (e.g. React Native). Experience deploying and operating systems on at least one major cloud platform ...

healthcare, particularly for women and families. Specific Requirements Backend experience with Node.js and/or Python (FastAPI, Flask) Experience with front end frameworks (React, Next.js, Vue). Exposure to cross platform frameworks a plus (e.g. React Native). Experience deploying and operating systems on at least one major cloud platform ...

auditable agentic systems that can be traced and observed Expertise in developing APIs and microservices Good understanding of frontend technologies such as React and Next.js Experience managing at least one cloud platform, such as Azure, AWS or GCP Experience working with AI development frameworks such as LangChain, foundation model platforms ...

DevOps, GitLab). Cloud and edge hosting: GCP , Vercel , AWS, Azure, Netlify and related deployment models. Front‐end integration literacy: HTML, CSS, JavaScript and Next.js + React ; mobile technologies (SwiftUI, Kotlin, Flutter or React Native) advantageous. CMS, DXPs, MarTech and SaaS integration in complex enterprise landscapes; including headless CMS platforms ...

Actions, Azure DevOps, GitLab).Cloud and edge hosting: GCP, Vercel, AWS, Azure, Netlify and related deployment models.Front-end integration literacy: HTML, CSS, JavaScript and Next.js + React; mobile technologies (SwiftUI, Kotlin, Flutter or React Native) advantageous.CMS, DXPs, MarTech and SaaS integration in complex enterprise landscapes; including headless CMS platforms such ...

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 ...