101 to 125 of 133 Full-Stack Development Jobs in the City of London

Senior Fullstack Engineer (Backend-Leaning | TypeScript/NodeJS/AWS) London (Paddington) | 3 days onsite £70k–£85k We’re working with a fast-growing, VC-backed data platform helping global brands understand and monetise user ...

Startup in London – Hiring Junior-Mid Level Full-Stack Engineers (Senior) – 5 days a week on-site – up to £110k I am working with a rapidly growing AI startup based in London, building next-generation products that transform how businesses use technology. They are looking … highly talented engineers who are ambitious, driven, and eager to make an impact. Roles Available: 🔹 Full-Stack Engineer – Strong expertise in TypeScript, React, Python and Golang. They can consider someone who its more frontend, or backend leaning, but the expectations is to work across the stack ...

Data Modelling: Design and manage data models to create logical data structures that enhance accessibility and usability. Application Development: Build full-stack applications using tools such as Python, SQL, and relevant frameworks, delivering intuitive user interfaces and interactive workflows. Data Governance: Implement data lineage … practices for effective adoption and utilisation of data platforms. Continuous Improvement: Contribute to internal capability building by improving frameworks, delivery processes, and team development across the consultancy. What We're Looking For SC, DV or eDV Cleared : In this position, you will already be security cleared ...

ownership of what ships. What you’ll do Build and ship features in a Ruby on Rails monolith. Contribute towards both new feature development and green-field rebuilds of core parts of our platform. Deliver work end-to-end: from business problem → solution design → development → release. … review code, while maintaining high quality. Must haves Strong Ruby and Ruby on Rails experience with evidence of shipping production work. Full-stack mindset; backend leaning. Comfortable working with ambiguity and making pragmatic decisions. Practical experience with AI-assisted development tools. Nice to haves ...

engineering foundations - security, tooling, CI/CD, documentation - that the team will scale from What We're Looking For: Practical full-stack experience - whether through work, a bootcamp, side projects, or open source Genuine curiosity about AI-native development: you've played with LLMs ...

.NET Developer, Graduate/Junior - Computer Gaming Company - London (Tech stack: Graduate/Junior .NET Developer, .NET 10.0, ASP.NET Core, C# 14, Azure, Angular 21, Vue.js, TypeScript, Multithreading, RESTful, ASP.NET Core Web API ...

Senior Data Engineer Build the engine behind next-generation trading analytics This is an opportunity to work on a high-impact data platform that turns complex trading data into powerful, actionable insight. You’ll be ...

SENIOR FULLSTACK ENGINEER Mission-led Tech | Real-World Impact 📍 Holborn, London (3 days onsite) 💼 Permanent Why this role is interesting Build and scale platforms used by millions, with tangible real-world impact Work in a ...

ambitious: a highly configurable, high-performance system supporting large-scale user activity, complex business logic, and seamless integrations, while leveraging modern AI-assisted development tools to accelerate delivery. Why This Role is Great This role is designed for engineers who want more than just tickets and sprint cycles. … platform architecture from first principles Shape technical direction Influence system design across multi-tenant architecture, global configurations, and scalability Master modern full-stack development Work across backend services, frontend applications, and infrastructure Solve complex, real-world challenges Develop systems handling multiple currencies, jurisdictions ...

🚀 Forward Deployed Engineer | YC Backed Startup ($15M+ Funding) We are partnering with a YC-backed, seed-stage startup founded by experienced second-time founders, with over $15m in funding from top-tier VCs, on a ...

You sweat the details. You open a SaaS app and immediately notice the component that shouldn't be a modal, the auth flow nobody thought through, the table that takes half a second too long ...

Fullstack Engineer - Up to £60k - 2 Days onsite - Fulham I am currently working with an excting SaaS client who has built out a Risk management solutions platform. Their primary focus is to provide businesses with ...

Senior Full Stack Engineer Role (Typescript)- Up to £100k A fast growing scale up that are making a positive social impact are growing their engineering team! This is a really great ...

with on short notice or on a rolling basis. Core Responsibilities: Collaborate with clients to define product roadmaps and technical specifications. Lead the development and implementation of bespoke software … tech solutions. Ensure technical architecture is scalable, secure, and future-proof. Bridge the gap between business requirements and technical feasibility. Required qualifications: Full-stack understanding or experience in Product Management. Knowledge of modern tech stacks (e.g., AWS/GCP, React, Python, or similar). Experience ...

Role: AI Engineer We are looking for top tier engineers to support us in building AI products. You will lead the development of algorithms that push the limirs of what is possible with LLMs. What You’ll Own Production-Ready AI: Develop and deploy proprietary algorithms that significantly … steer the direction of our R&D. Advanced Prompt Engineering: Research and implement cutting-edge prompting methods to maximize model efficacy. Full-Stack Impact: While focused on AI, you’ll work across the stack (Python, Postgres, React) to ensure our research translates into ...

view: what we believe, what we can do, and what the solution could become. - Maintain a high output velocity using AI-assisted development tooling — you are the 10× engineer. ### 2. **Own the client-facing technical narrative** - Prepare and support all technical resources for sales calls: demos, slide … looking for **Must have** - Senior or lead-level engineering experience, with a proven track record of shipping production-quality work independently. - Full-stack capability: strong React/TypeScript frontend fundamentals with solid backend experience (language is not a constraint). - Practical, hands-on knowledge ...

with founders to shape the intelligence layer behind a new generation of human-aware AI — from LLM reasoning and semantic understanding to full-stack experiences that feel emotionally intelligent. If you’ve worked in a disruptive industry and built something brand new — not just improved what … TypeScript and modern frameworks Experience with vector databases and embeddings Strength in LLM fine-tuning or multimodal reasoning Proven ability to ship full-stack products fast Strong Python skills Experience using Gemini would be preferred The Culture Just a small, ambitious team that debates hard, builds ...

Backend Engineer, London, £55,000 - £65,000 + Benefits (including share options) A Backend Software Engineer ( Typescript, Node.js ) is needed to join an ambitious and fast-scaling technology company operating within a regulated market. This ...

Marsh is hiring a full-stack engineer to join our Innovation & Applied AI team within the DCX initiative, focused on building a competitive digital platform. The team is 20 people, primarily based in London, and were looking for someone who can significantly increase productivity while adapting ...

Development Team Lead (Full Stack), Central London An exciting Development Team Lead (Full Stack) role with a salary of £100,000 plus commission and career progression opportunities for a permanent role based in our Marylebone, London office. … offering a fantastic opportunity for an experienced Development Team Lead (Full Stack) with an immediate start at a market leading, dynamic and reno click apply for full job details ...

Senior Product Engineer, Full Stack - Energy £70,000 to £95,000 Permanent London, hybrid The opportunity Our client is hiring a Senior Product Engineer, Full Stack, to ...

Senior Frontend Engineer/Full Stack Product Engineer - Energy About the Role Our client is hiring a Frontend Engineer/Full Stack Product Engineer to help build ...

GenAI Full Stack Engineer - Managing Consultant Salary: £77,000 - £88,000 pa + £8,000 Bonus plus benefits, perks and healthcare options Job Type: Permanent - Hybrid/2 x days per ...

We are working with a high-growth AI company building a widely used consumer platform with millions of users globally. This is a product-focused environment where engineering decisions have direct impact at scale. The ...

Forward Deployment Engineer UK (Hybrid) Salary: £70,000 £100,000 + Benefits Permanent Hiring 10 Engineers About the Role: We are hiring Forward Deployment Engineers to deliver and deploy cutting-edge technology solutions for our ...