1 to 25 of 26 Permanent Next.js Jobs in the City of London

GenAI Full Stack Engineer - Consultant / Senior Consultant

Hiring Organisation
83zero Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£70,000
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 ...

Lead GenAI Full Stack Engineer / Managing Consultant

Hiring Organisation
83zero Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£85,000
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 ...

Senior Full Stack Engineer - Java Script

Hiring Organisation
Presight
Location
City of London, London, United Kingdom
ability to design APIs and distributed systems in JavaScript ecosystems Willing and able to relocate to Abu Dhabi, UAE Nice to Have Experience with Next.js or similar React frameworks Monitoring & observability in JavaScript services (Prometheus, Grafana, OpenTelemetry) Dynamic report generation or PDF rendering in JavaScript applications Exposure to WebGL ...

Software Engineer, Frontend

Hiring Organisation
Travelex
Location
City of London, London, United Kingdom
Must have: 3+ years of experience in frontend development, building dynamic and responsive web applications Demonstrated fluency with TypeScript, React and frameworks such as NextJS Familiarity with state management libraries (Zustand, Redux, MobX etc.) Experience working with GraphQL/REST APIs Knowledge of the web platform, including HTML ...

Software Engineering Manager

Hiring Organisation
La Fosse
Location
City of London, London, United Kingdom
relational and NoSQL technologies, including SQL Server and MongoDB Frontend applications built with contemporary JavaScript frameworks and languages such as React , Next.js , Angular , and TypeScript In-memory data grids and caching solutions leveraging technologies like Redis and Ignite If of interest, please apply with your updated ...

Full Stack Engineer

Hiring Organisation
Gravitas Recruitment Group (Global) Ltd
Location
City of London, London, United Kingdom
improvements as the platform scales Support code quality through testing, CI/CD, and peer review Key Skills & Experience Strong experience with React and Next.js Backend development experience with Node.js and API-driven architectures Experience working with PostgreSQL and ORMs (ideally Sequelize) Hands-on experience integrating AI or ML-powered ...

Founding Engineer

Hiring Organisation
Squirrel
Location
City of London, London, United Kingdom
fast-paced, and high-uncertainty environments Excellent communication and collaboration skills Demonstrated curiosity and drive to learn through experimentation Preferred: Familiarity with tech stack: Next.js, React, TypeScript, Python, FastAPI, Postgres, Redis Experience with cloud infrastructure (AWS, GCP) Exposure to or experience with foundation models or Generative AI (LLMs, RAG, fine ...

Product Engineer

Hiring Organisation
Dragonfly
Location
City of London, London, United Kingdom
entire stack, but an eagerness to learn and the ability to leverage AI tooling to get bootstrapped quickly is a must: 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 ...

Senior Full Stack Engineer (Backend leaning)

Hiring Organisation
Oliver Bernard
Location
City of London, London, United Kingdom
help build, define, and scale. 💰 Comp: Up to £100k + strong early stack equity package 🧑 💻 What you’ll do Full-stack engineering, backend-leaning (Next.js FE + BE, Node.js, TypeScript, legacy Python) Collaborate with product & CEO to shape the roadmap Help guide a small, senior team Work on AI/ ...

Full Stack Engineer

Hiring Organisation
Explore Group
Location
City of London, London, United Kingdom
understand their needs, scope problems, develop solutions, and continuously improve them. Responsibilities Work across the full stack, including cloud infrastructure, backend (Python), frontend (Next.js with TypeScript), and databases (PostgreSQL) Collaborate with users to understand workflows and requirements Architect and scale document ingestion and processing pipelines for fast, accurate data extraction ...

Senior Frontend Developer

Hiring Organisation
Formula Recruitment
Location
City of London, London, United Kingdom
accelerate the products ground-breaking advancements. As a Senior Frontend Developer, you will have the following: Strong expertise in React & Typescript - ideally also with Next.js Strong UI/UX intuition with a user-centric approach Experience working in a lean start-up environment is beneficial What's on offer: Salary ...

Full Stack Engineer

Hiring Organisation
Birl 🟣
Location
City of London, London, United Kingdom
Helping establish sensible engineering practices as the team and codebase grow. What we’re looking for Strong experience working full stack with JavaScript - React (Next.js) and Node.js . Solid experience in e-commerce , including platform integrations such as Shopify . Senior-level judgement and the ability to make pragmatic technical ...

Founding Engineer | VC Backed AI Startup | 3rd Time Founders with 3 Successful Exits

Hiring Organisation
Tech Talent Network
Location
City of London, London, United Kingdom
product, you’ll feel very at home here! 💼 Requirements: 4+ years building full-stack applications with Python/JS, or TypeScript (React, Next.js, Node, etc) Hands-on experience working with LLM and RAG High 2.1/First in Computer Science (or similar) from Top Tier University (Oxford, Cambridge, Imperial ...

Digital Solutions Architect (CMS)

Hiring Organisation
Method-Resourcing
Location
City of London, London, United Kingdom
Employment Type
Permanent
client-facing discussions Stay hands-on when needed: troubleshooting, prototyping, helping unblock complex builds What we're looking for Strong engineering background (Node.js, React, Next.js or adjacent tech) Experience designing digital solutions (CMS, content platforms, APIs, microservices) Comfort working in fast-paced, agency/consultancy-style environments Ability to communicate ...

Full Stack Engineer

Hiring Organisation
Durlston Partners
Location
City of London, London, United Kingdom
infrastructure, and critical safety assessments that currently waste billions due to manual processes. The role: Build full-stack features solving real enterprise problems (TypeScript, Next.js, NestJS) Own product decisions from user research to deployment Work directly with major TIC companies reshaping their operations Move fast - ship, iterate, and see immediate ...

Lead Front-End Engineer

Hiring Organisation
IT Search
Location
City of London, London, United Kingdom
large-scale web environments Experience leading or mentoring engineers and taking ownership of delivery and standards Solid experience with Node.js, TypeScript, React, and Next.js Good understanding of functional programming principles Comfortable in a role with real visibility and influence across the business Experience or interest in search, SEO, or subscription ...

Frontend React Developer

Hiring Organisation
Explore Group
Location
City of London, London, United Kingdom
Title: Frontend Engineer – React/TypeScript/Next.js Location: London (Hybrid – 2‐3 days in office) Salary: £70,000 – £75,000 + Equity About the Company You’ll join a fast‐scaling SaaS business that’s redefining how enterprise sales teams operate. Their platform uses advanced AI and deal‐intelligence … led. About the Role You will help shape the front end of a high‐impact product used by enterprise customers, using React , TypeScript , and Next.js . You’ll work across the full front‐end life cycle — from architecture and design collaboration, through to deployment and optimisation — delivering robust, performant ...

Full Stack Developer

Hiring Organisation
BioTalent
Location
City of London, London, United Kingdom
long-term growth opportunities Your Responsibilities Build and maintain backend services, APIs, and data-processing pipelines using Python Develop and extend frontend applications using Next.js and React Design and maintain RESTful APIs and client–server integrations Write and maintain unit and acceptance tests, integrating with CI workflows Collaborate using … professional experience as a software engineer Strong Python skills, including building production-ready services and APIs Experience developing frontend applications with React and Next.js Understanding of RESTful architectures and backend–frontend integration Familiarity with modern frontend tooling (TypeScript, CSS frameworks, component-based design) Experience writing tests and working with ...

Product Engineer

Hiring Organisation
Affinity Labs
Location
City of London, London, United Kingdom
Python (FastAPI preferred) and solid database skills (PostgreSQL/MongoDB). Proven experience building and shipping mobile apps with React Native. Strong React fundamentals (Next.js experience a plus). Solid API design and systems thinking. Familiarity with AWS serverless patterns and Docker; basic CI/CD concepts. Comfortable with Redis … privilege) and practical data-privacy basics. Planning & execution in Linear (or similar). Tools & Stack Backend/Runtime: Python (FastAPI), Node.js. Frontend : React/Next.js Mobile: React Native Datastores: PostgreSQL, MongoDB (as appropriate), Redis (caching/sessions). Vectors/Embeddings: Chroma (or similar). AI Models & APIs: Claude (Anthropic ...

Junior Fullstack Engineer

Hiring Organisation
Medly AI
Location
City of London, London, United Kingdom
mobile products. You will play a pivotal role in high-impact projects across our entire stack, from crafting polished user interfaces in Next.js and React Native to building robust backend services in Python. This is a high-impact opportunity for someone eager to learn fast, take ownership, solve real problems … help power the next generation of educational technology. Role Responsibilities Build and maintain features across our web app (Next.js) and mobile app (React Native) Contribute to our Python backend and help improve API performance Collaborate on database design and write efficient queries in Postgres Work with AWS services to deploy ...

FS Engineer

Hiring Organisation
Bloc Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent
Founding FS Engineer (Python, NextJS, TypeScript) 👨🏽💻 (AI/LLMs) Salary up to £120k + Equity London - 2/3 days a week Can sponsor candidates already in the UK ✅ Opportunity to join a VC backed startup, building the future of LegalTech. 🧑🏻⚖️ With operations based in both … agents to handle complex legal processes. 🤖 What you'll do Contribute to the entire stack, from cloud infrastructure to prompting to UX (Python backend, Next.js with TypeScript frontend, PostgreSQL, SOTA LLMs. Deployed to Azure via IaC (Bicep) with CI/CD pipelines powered by GitHub Actions) Collaborate closely with users ...

Full-Stack Engineer (React / Python / AI)

Hiring Organisation
Explore Group
Location
City of London, London, United Kingdom
high-impact features. Key Responsibilities: Build and maintain end-to-end product features used by enterprise customers. Develop modern, responsive interfaces using React/Next.js . Design and optimize APIs, data pipelines, and integrations using Python (FastAPI/Django) . Collaborate with design, product, and AI teams to deliver … What We’re Looking For: Proven experience as a Full-Stack Engineer in a startup or fast-paced environment. Strong proficiency in React/Next.js and Python (FastAPI/Django) . Experience shipping scalable, production-grade software. Exposure to or interest in AI/ML-driven products . Startup experience ...

Full Stack Engineer Lead

Hiring Organisation
Square One Resources
Location
City of London, London, United Kingdom
stack. You will serve as the technical authority for the team, building and evolving a large-scale platform built on C#/.NET and Next.js, leveraging the full capabilities of Google Cloud Platform (GCP). This role requires a blend of hands-on coding (approximately 60-75%), strategic architectural thinking … within an Agile framework. Full Stack Development: Remain hands-on with development, implementing complex features and solving critical performance bottlenecks across the C# and Next.js stack. GCP Platform Strategy: Own the deployment, monitoring, and scaling strategy on Google Cloud Platform, ensuring the platform can handle large-scale traffic and data. ...

Product Engineer

Hiring Organisation
Wave Talent
Location
City of London, London, United Kingdom
Product/Software Engineer | £90,000–£115,000 + Equity | React/Next.js/Python | London | Hybrid (4 days in-office) Join a fast-growing, early-stage product company building advanced decision infrastructure powered by AI. The platform is already in the market and being used by real customers … Strong product-minded engineering experience in modern web environments Experience working across frontend and backend systems Commercial experience with stacks similar to React/Next.js/Python/SQL/cloud infrastructure Comfortable working in environments where problems are not fully specified Experience operating in start-up or high-growth ...

AI Engineer

Hiring Organisation
Ethiq
Location
City of London, London, United Kingdom
work in unpredictable environments. You can explain complex multi-step reasoning to a non-technical stakeholder clearly, then dive straight into the FastAPI or Next.js code to build it. This team thinks about the product at night. They are looking for a collaborator who is equally obsessed with the potential … agentic systems. The Technical Stack Backend: Python (FastAPI) Frontend: TypeScript (Next.js) AI: LLM Orchestration, Agentic Frameworks, Vector DBs Infrastructure: AWS The Interview Process Intro Call (30-min): A high-level alignment on vision and technical philosophy with the founders. Technical Deep Dive (60-min): A walkthrough of real systems ...