1 to 25 of 236 Permanent Next.js Jobs in London

GenAI Full Stack Engineer - Consultant / Senior Consultant - Digital Excellence

Location
Greater London, England, United Kingdom
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 ...

Senior Software Engineer (Full-Stack - TypeScript/Node)

Location
City Of London, England, United Kingdom
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 ...

Senior Python Developer/ Engineer

Location
City of Westminster, England, United Kingdom
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 ...

Front End (UI) Software Engineer (Fullstack)

Location
Greater London, England, United Kingdom
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 ...

Software Project Manager

Hiring Organisation
PEN Group
Location
London Area, United Kingdom
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 ...

Senior Full Stack Engineer, Agentic Security

Location
Greater London, England, United Kingdom
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 Engineer – Security & Intelligence

Location
Greater London, England, United Kingdom
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 ...

Software Engineer - C# .Net, Asset Management

Location
Greater London, England, United Kingdom
Azure Snowflake Data engineering and integration platforms CI/CD and DevOps Infrastructure as Code Automated testing Agile delivery Desirable Python, Node.js TypeScript, React, Next.js TDD/BDD AI-assisted development tools (GitHub Copilot, Claude Code) Financial services experience We believe in equal opportunity for all and actively encourage applications ...

Senior Full Stack Engineer

Location
Greater London, England, United Kingdom
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 ...

Principal Software Engineer

Hiring Organisation
Raytheon
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
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 ...

Principal Software Engineer

Location
Greater London, England, United Kingdom
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 ...

Senior Full-Stack Software Engineer, (Forward Deployed), GPS

Location
Greater London, England, United Kingdom
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 ...

Senior Software Engineer - Commercial Trading

Location
City of Westminster, England, United Kingdom
advantageous but is not essential. Tech Stack The team uses a variety of modern technologies, including: Backend: Java, Spring, Spring Boot, Micronaut Frontend: React, Next.js, TypeScript, Angular Cloud & Infrastructure: Azure Cloud, Kubernetes Observability: Dynatrace Databases: SQL Server, MongoDB Caching & Performance: Ignite, Redis What’s in it for you? Working ...

Agentic / GenAI Consultant / Senior Consultant

Location
Greater London, England, United Kingdom
skills, 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 tasks ...

Senior Full Stack Developer (C#/React/TypeScript) - REMOTE working

Location
Greater London, England, United Kingdom
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 ...

Lead Full Stack Engineer

Location
Greater London, England, United Kingdom
5+ years’ commercial software development experience, with at least 2 years in a senior, lead or technical leadership position. Excellent knowledge of React/Next.js and .NET Core. Proven experience working with Microsoft Azure and cloud-native technologies. Experience with Infrastructure as Code, ideally using Terraform or Pulumi. Good understanding ...

IT Development Team Lead (Full Stack)

Hiring Organisation
Euro Car Parks
Location
Central London, London, United Kingdom
Employment Type
Permanent
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 ...

Senior FullStack Engineer - TypeScript - Python

Location
Greater London, England, United Kingdom
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 ...

Senior Full Stack Engineer

Location
Greater London, England, United Kingdom
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 ...

Senior Software Engineer - Food (Distributed Systems)

Location
Greater London, England, United Kingdom
engineering communities, standards and best practices. Tech Stack M&S uses a variety of technologies, including: Backend: Java, Spring, Spring Boot, Micronaut Frontend: React, Next.js, TypeScript, Angular Cloud & Infrastructure: Azure Cloud, Kubernetes Observability: Dynatrace Databases: SQL Server, MongoDB Caching & Performance: Ignite, Redis What's in it for you? Working ...

Principal Engineer (Gen AI and MACH Architecture)

Location
Greater London, England, United Kingdom
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 ...

Principal Engineer (Gen AI and MACH Architecture)

Hiring Organisation
Akqa
Location
London, United Kingdom
Salary
£ 70 K
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 ...

Fullstack Developer

Hiring Organisation
Randstad Digital
Location
London, United Kingdom
Employment Type
Permanent
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 ...

Agentic AI / GenAI Consultant | From PoC to Production

Location
City Of London, England, United Kingdom
services and APIs using Python, FastAPI, Django or Flask, supported by strong SQL Create engaging, responsive AI products using TypeScript, JavaScript, React and Next.js Ground LLM applications in trusted business data through RAG, MCP and model integration Design multi-agent solutions using frameworks such as LangChain, CrewAI, AutoGen, OpenAI Agents ...

Full Stack Engineer

Hiring Organisation
Oscar Technology
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £80,000 per annum
reliability and security What we're looking for You'll need: The fundamentals to build on the client's tech stack - TypeScript, React/Next.js, Node, PostgreSQL and AWS Strong coding fundamentals - data structures, API design, testing, version control, and the judgement to know when to be rigorous and when ...