1 to 25 of 50 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 Large ...

need experience with everything listed, but you should be comfortable learning new tools and working across a varied stack. Frontend and web React, Next.js, TypeScript Backend and services Node.js, Python, serverless architectures Datastores SQL and NoSQL technologies including Postgres and DynamoDB Cloud and infrastructure AWS including Lambda, CloudWatch, API Gateway ...

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 ...

patterns. Ability and willingness to learn new languages, frameworks and tools. Experience building modern user interfaces and single page applications using the React/NextJS ecosystem. Experience developing APIs and other back-end components using Node.js and PHP. Experience in acting as a technical lead in a team, starting ...

full‐stack applications, paired with a deep focus and passion for backend engineering on Cloud Services, system stability, and modern frontend tools like React, Next.js, and CSS Modules. A Growth Mindset for Legacy Systems: You are energized by a complex backlog, finding genuine satisfaction in driving platform‐wide improvements ...

full-stack applications, paired with a deep focus and passion for backend engineering on Cloud Services, system stability, and modern frontend tools like React, Next.js, and CSS Modules. A Growth Mindset for Legacy Systems: You are energized by a complex backlog, finding genuine satisfaction in driving platform-wide improvements ...

full-stack applications, paired with a deep focus and passion for backend engineering on Cloud Services, system stability, and modern frontend tools like React, Next.js, and CSS Modules. A Growth Mindset for Legacy Systems: You are energized by a complex backlog, finding genuine satisfaction in driving platform-wide improvements ...

continually improve our engineering processes, tools, and ways of working. Our Tech Stack You’ll work across our modern, TypeScript-based stack: Frontend : React (Next.js), GraphQL (Apollo), TypeScript Backend : Node.js (AWS Lambda), Prisma & PostgreSQL Testing : Cypress + Jest Infrastructure : AWS, Terraform, CI/CD pipelines Practices : Agile, Kanban, pair programming ...

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 ...

more junior engineers What we're looking for The highest level of proficiency using most of the following: Frontend: TypeScript, Astro and/or Next.js, React, HTML, CSS Backend: Node.js, Go, RESTful APIs, OpenAPI Cloud: AWS, Lambda, DynamoDB, S3, CloudFront Infrastructure as Code: SST, Terraform, CDK, Pulumi or similar Testing ...

services. Own API and event-driven architectures (REST/gRPC/FastAPI; Kafka/PubSub), microservices, and front-end integration (React/TypeScript/Next.js) for internal users (RMs, analysts) and operational teams. Ensure non-functional excellence: performance, cost, resiliency, observability, and operability (SLOs, error budgets). E2E Productionization ...

modern platform that leverages large language models (LLMs) and advanced AI capabilities. Key Responsibilities * Build, enhance and maintain a full-stack application using Next.js, React and TypeScript.* Develop and optimise backend services and data models using PostgreSQL and Prisma.* Work closely with AI engineers and evaluation teams to translate data ...

Cancer Research UK is seeking a Senior Software Engineer to join their team in Stratford. The role involves delivering software applications, mentoring junior engineers, and applying Agile principles. You will work flexibly, either in the ...

implement robust backend services primarily using Python and PostgreSQL. Develop and maintain responsive, performant front-end applications with TypeScript and modern frameworks (e.g., NextJS, NodeJS). Collaborate with product owners, UX/UI designers, and other stakeholders to translate requirements into technical solutions. Champion agile ways of working, driving continuous … least 3 years in a senior or technical lead role. Proven expertise in full-stack development using: TypeScript (and JavaScript frameworks such as NextJS, Node, or Tailwind) Python (including frameworks like Django, Flask, or FastAPI) PostgreSQL and relational database design, optimization, and maintenance. AI Development Tools such as Windsurf, Aider ...

ETRM exposure. Experience with AI/LLM tooling including LangChain, Langfuse or Claude Code. Experience modernising legacy systems and workflows. Experience with React, Next.js, PostgreSQL, MongoDB or Kafka. #J-18808-Ljbffr ...

Agile Environment Nice to haves Strong engineering principles Excellent communication skills – written and verbal Experience in security‐first technical architecture Experience in React and NextJS Our Benefits Join a scaling fintech building the next generation of investment banking. You’ll work at the intersection of capital markets and cutting‐edge ...

facing tools, and strong ability to connect technical design to covenant outcomes. Experience with Python-based services (e.g., FastAPI) and modern web stacks (e.g., Next.js/React.js) in real-world delivery. Practical experience delivering GenAI/agentic solutions (prompt engineering, RAG, governance patterns) in production or controlled enterprise environments. Worked ...

afraid to operate across disciplines Is delivery focused Takes ownership of problems Is proactive Is not a perfectionist Our Stack Frontend TypeScript Next.js + React - App Router with React Server Components Shadcn UI, Radix UI & Tailwind CSS - Utility‐first CSS framework Data BigQuery - Cloud data warehouse Dataform - SQL transformation framework ...

tools, and platforms. Quality Assurance and Maintenance: Establish and enforce quality standards, ensuring software products meet performance, reliability, and usability requirements. Tech Stack React, Next.js, Typescript Java Kotlin Swift GraphQL Federation Azure (cloud) Observability: Dynatrace Qualifications Previous polyglot hands‐on senior software engineer Experience working on highly scalable software solutions ...

Promoter of DevOps: you build it, you run it. Tech Stack M&S uses a variety of technologies including; Java, Spring, SpringBOOT, Micronaut React, Next.js, Typescript, Angular Azure Cloud, Kubernetes, Dynatrace (observability) SQL Server, MongoDB Ignite, Redis What’s In It For You Working at M&S means being part ...

performance, reliability, and usability requirements. Oversee the maintenance and support of existing software systems, ensuring prompt resolution of issues and bugs. Tech Stack React, Next.js, Typescript Java Kotlin Swift GraphQL Federation Cloud: Azure Observability: Dynatrace Who You Are Previous polyglot hands‐on senior software engineer Experience working on highly scalable ...

Promoter of DevOps: you build it, you run it. Tech Stack M&S uses a variety of technologies including; Java, Spring, SpringBOOT, Micronaut React, Next.js, Typescript, Angular Azure Cloud, Kubernetes, Dynatrace (observability) SQL Server, MongoDB Ignite, Redis What’s In It For You Working at M&S means being part ...

high‐scale growth‐focused web environment. A track record of technical leadership and influencing technical direction across multiple teams or departments. Deep expertise in Next.js and the React ecosystem. Experience with headless CMS platforms such as Contentful or Sanity — including content modelling, migration, and multi‐site architecture. Experience with infrastructure ...

security, and complex integrations (Videos & Payments). Key Responsibilities: Rapid Prototyping: Use AI generative tools to build and iterate on the frontend (React/Next.js) and backend logic.Video Infrastructure: Implement high-performance video streaming for candidate "shorts" using APIs like Mux, Cloudinary, or AWS MediaConvert.AI Integration: Connect the platform ...

Java Script Works is looking for a Lead Engineer based in Greater London, United Kingdom. The ideal candidate will have experience with Git, GitHub, and a strong focus on front-end development using technologies like ...