Senior Full-Stack Engineer (React/Node) — Lead & Grow SaaS

Company IconAtominvest Software Ltd
Location IconLondon

A leading fintech software start-up located in the City of London is seeking a full-stack software developer to optimize and build features across their award-winning web platform. The ideal candidate will bring 4-7 years of experience in web develop...Read More>>.

Posted: June 6th, 2026
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Senior Full-Stack Engineer: Build AI-Enabled Web Apps

Company IconAlphayotta
Location IconCity of Edinburgh

A leading financial technology firm in Scotland seeks a Full Stack Web Application Developer to design, build, and support web-based applications. This role involves collaborating with stakeholders to deliver high-quality solutions and mentoring team...Read More>>.

Posted: June 6th, 2026
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Full-Stack Engineer: Build Impactful Gov Tech (React/Java)

Company IconManchester Digital
Location IconManchester

A technology firm in the UK is seeking a Full-Stack Developer to work on innovative projects that enhance safety through technology. You will engage with government and law enforcement organizations, using technologies like React and Java. The candid...Read More>>.

Posted: June 6th, 2026
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Senior Real-Time Robotics Full-Stack Engineer (Hybrid UK)

Company IconAkkar
Location IconSt Albans

A fast-growing defense tech company in St Albans is seeking a Senior Full Stack Developer to design and deploy scalable software for real-time robotics systems. This hybrid role involves collaborating on advanced technologies while utilizing modern w...Read More>>.

Posted: June 6th, 2026
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Senior Full-Stack Engineer — Climate Tech, AI-Driven, Hybrid

Company IconNeutreeno
Location Icon

Neutreeno, a Cambridge-based emissions-to-performance platform, is seeking a Senior Full Stack Software Engineer to own and ship core features across the stack. You will craft responsive React UIs, build Node.js/Python services, and deploy to AWS,...Read More>>.

Posted: August 19th, 2026
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Full-Stack Engineer | TypeScript, Elite Team, Real-Time AI

Company IconOho Group
Location IconLondon

Oho Group in London is seeking a Software Engineer with TypeScript expertise to join an elite deep-tech team. You will build core product and architecture from the ground up, working alongside exceptional engineers, founders, AI specialists and sy...Read More>>.

Posted: September 24th, 2026
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AI-Driven Full Stack Engineer: Build Scalable Web Apps

Company IconHarnham
Location IconLondon

Harnham in Greater London is seeking a Full Stack Engineer to own key areas of a client-facing web application within an AI-first engineering environment. You will work in cross-functional teams and contribute across the software development lifec...Read More>>.

Posted: September 24th, 2026
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Senior Full-Stack Engineer - AI SaaS (Go/TS, AWS)

Company IconSwitch Tech Talent
Location IconLondon

Switch Tech Talent in London is hiring a Senior Full Stack Software Engineer to build AI-powered features in a fast-growing SaaS environment. The role offers hybrid working with Go and/or TypeScript, React & Next.js, and AWS cloud-native applicati...Read More>>.

Posted: September 24th, 2026
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Senior Full-Stack Engineer (Java/TypeScript) - AI-Driven Modernisation

Company IconAppvia
Location IconLondon

Appvia, a London-based cloud and platform engineering consultancy, seeks Senior Full Stack Engineers (Java/TypeScript) to join a growing Software Engineering practice supporting a major modernisation and AI-enabled transformation programme....Read More>>.

Posted: September 24th, 2026
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Senior Java Full-Stack Engineer: Lead, Architect & Scale Microservices

Company IconTPXimpact | B Corp™
Location Icon

TPXimpact is seeking a Senior Software Engineer to design, develop, and deploy high-quality software solutions. You will work on complex projects, contributing to architecture and improving systems, while mentoring junior engineers and promoting b...Read More>>.

Posted: September 24th, 2026
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Senior Full-Stack Engineer — AI-Driven Large-Scale Systems

Company IconAtos
Location IconLondon

Atos is seeking a Senior Full Stack Engineer to join our Gen AI team in the UK. You will design, build and deploy scalable software across multiple stacks, collaborating with clients and internal stakeholders to deliver end-to-end solutions....Read More>>.

Posted: September 24th, 2026
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Full-Stack Engineer (Python + TypeScript) — AI‑Driven Health Tech

Company IconFew&Far
Location IconLondon

Few&Far in the United Kingdom seeks a senior Full Stack Engineer with a frontend focus to build products at the intersection of healthcare, finance and AI. You will own problems from scoping to production, shipping customer-facing features using R...Read More>>.

Posted: September 24th, 2026
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Senior Full-Stack Engineer | Hybrid Role, Impactful Health Tech

Company IconCancer Research UK
Location IconLondon

Cancer Research UK in London is seeking a Senior Software Engineer to own a diverse portfolio of business-critical applications, services and integrations across the charity. You will develop full stack solutions with TypeScript, React, Next.js, N...Read More>>.

Posted: September 25th, 2026
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Senior Java Full-Stack Engineer - AI-Driven Platform Modernization

Company IconHackajob Ltd
Location IconManchester

Hackajob Ltd. in Manchester is seeking a Senior Java Full Stack Engineer with AI-driven development exposure to modernize enterprise platforms.You will influence both backend Java and frontend technologies, driving secure, scalable solution...Read More>>.

Posted: September 25th, 2026
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Senior Full-Stack Engineer – Java/C# | AI & Architecture, Manchester

Company IconFitch Group
Location IconManchester

Fitch Group in Manchester seeks a Senior Software Engineer to join Ratings Technology. You will shape architecture, drive high‑impact initiatives, and deliver robust, scalable full‑stack applications using Java/Springboot, C#/.NET, Python and...Read More>>.

Posted: September 25th, 2026
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Senior Full-Stack Engineer – Java/C#/React, AI-Driven

Company IconFitch
Location IconManchester

Fitch Ratings is seeking a Senior Software Engineer to join our Manchester Ratings Technology team. You will lead architectural decisions and deliver scalable full‑stack applications, shaping technology strategy for analysts worldwide.You...Read More>>.

Posted: September 25th, 2026
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Full-Stack Engineer III: Build Cloud Apps & AI Solutions

Company IconLexisNexis Risk Solutions
Location IconOxford

LexisNexis Risk Solutions in Oxford is seeking a Full-Stack Software Engineer III to design, develop, test, and deploy cloud-based web applications. You will contribute to a peer-review oriented Agile team, shaping architecture and delivering user...Read More>>.

Posted: September 25th, 2026
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Senior Full-Stack Engineer – AI-Driven Ratings Tech | Hybrid

Company IconFitch Group, Inc.
Location IconManchester

Fitch Ratings, a leading global credit ratings agency, seeks a Senior Software Engineer for Ratings Technology in Manchester. You will shape technical architecture, mentor engineers, and deliver mission‑critical, full‑stack applications using...Read More>>.

Posted: September 25th, 2026
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Senior Full Stack Engineer — AI & TS/React/Next.js | Equity

Company IconLa Fosse Associates
Location IconLondon

La Fosse Associates is seeking a Senior Full Stack Software Engineer to own a production SaaS platform and help shape product strategy in a London hybrid setting. You will design and scale full-stack apps using TypeScript, React, Next.js, Go and P...Read More>>.

Posted: September 25th, 2026
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AI-First Full-Stack Engineer (Claude/N8N) – Hybrid London

Company IconHarnham
Location IconLondon

Harnham in London is hiring for an AI-first backend role, blending Java or Kotlin on the Spring stack with modern AI-powered workflows. The role involves contributing across the full stack and collaborating in agile squads to deliver high-quality...Read More>>.

Posted: September 25th, 2026
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Senior AI-First Full-Stack Engineer (Azure/End-to-End)

Company IconYTL UK Group
Location IconBath

YTL UK is seeking a Senior Full Stack Engineer to drive end-to-end delivery from data and backend services to user interfaces. In an AI-first engineering team, you will design, build, test and maintain scalable software with production-grade quali...Read More>>.

Posted: September 27th, 2026
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Lead Full-Stack Engineer – JS/TS, AI-Driven SaaS

Company IconBe-IT Ltd
Location IconGlasgow

Be-IT Ltd is seeking a Lead Full Stack Software Developer in Scotland for a hybrid role with a £90-£100k package plus benefits. The position offers real ownership to shape products from first design conversations through to production code, with...Read More>>.

Posted: September 27th, 2026
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Senior Java Full-Stack Engineer - React + AWS/Azure | Hybrid

Company IconAnson McCade Pty
Location IconBath

Anson McCade Pty is seeking a Senior Software Engineer to join a leading UK tech consultancy in a hybrid, permanent role. You will work on full‑stack solutions using Java, TypeScript/JavaScript and React, delivering across the lifecycle with clo...Read More>>.

Posted: September 27th, 2026
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Azure Full-Stack Engineer: .NET Core, C#, React Automation

Company IconGazelle Global Consulting Limited
Location IconWokingham

Gazelle Global Consulting Limited seeks a skilled Azure .NET and React developer to design, build, and maintain scalable cloud applications on Azure. You will focus on automation, reliability, and data processing at scale, collaborating with archi...Read More>>.

Posted: September 27th, 2026
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Mid-Level Full-Stack Engineer - Build & Own Customer Apps

Company Iconanimaltrust
Location IconWarrington

Animal Trust, a UK-based veterinary CIC, is seeking a developer to join our digital team to build and maintain bespoke products for our customers and colleagues.You'll work on live applications, APIs, integrations, and our new native mobile...Read More>>.

Posted: September 29th, 2026
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Senior Full-Stack Engineer — AI-Native, High-Traffic Web

Company IconBullish, Inc.
Location Icon

CoinDesk is seeking a senior software engineer to lead the Media Engineering team. You will own end-to-end features across web, mobile apps, and services using Next.js, React, Node.js, and TypeScript, with a focus on performance, reliability, and...Read More>>.

Posted: September 29th, 2026
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Senior Full-Stack Engineer: Java/Node, AI Workflows (Hybrid)

Company IconGrid Dynamics
Location IconLondon

Grid Dynamics is seeking a versatile engineer to join a high-performing team building workflow automation platforms for a global investment banking environment. You will design, develop and deploy Java-based services, REST APIs and React frontends...Read More>>.

Posted: August 10th, 2026
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Senior Full-Stack Engineer: AI-Driven, API-First Platform

Company IconIFS
Location IconLondon

IFS in London is seeking a seasoned software engineer to lead the design and rollout of scalable APIs and AI-enabled features across front-end and back-end. You will steer architectural decisions, uphold reliability, and drive DevOps practices wit...Read More>>.

Posted: August 17th, 2026
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Senior Full Stack Engineer (Realtime & Voice) Customer Experience Platform

Company IconHopper Inc.
Location IconLondon

About the Role HTS Assist is Hopper's agentic AI assistant for travel, resolving flight changes, cancellations, refunds, and bookings over chat and voice for some of the world's largest travel brands. We're looking for a senior full st...Read More>>.

Posted: August 28th, 2026
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Senior Full-Stack Engineer: Real-Time Voice & AI APIs

Company IconHopper Inc.
Location IconLondon

Hopper Inc. is seeking a senior full stack engineer to anchor HTS Assist, owning realtime and voice end-to-end.You will build across React/TypeScript front ends, Scala and Python services, and cloud infra, with a focus on multi-tenant, scal...Read More>>.

Posted: August 28th, 2026
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Senior Full Stack Engineer (Realtime & Voice) Customer Experience Platform

Company IconApply
Location IconLondon

About the Role HTS Assist is Hopper's agentic AI assistant for travel, resolving flight changes, cancellations, refunds, and bookings over chat and voice for some of the world's largest travel brands. We're looking for a senior full st...Read More>>.

Posted: August 29th, 2026
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Senior Full-Stack Engineer (TS/React/Node) - Hybrid London

Company Iconmoney.co.uk
Location IconLondon

money.co.uk is seeking a Staff Software Engineer in London with a hybrid working model. You will shape technical direction for Financial Services, working across frontend and backend systems, and lead initiatives involving AI tooling to deliver me...Read More>>.

Posted: September 14th, 2026
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Full-Stack Engineer — Turn Tax Data into Clear Interfaces

Company IconUnited States Digital Space LLC
Location IconLondon

United States Digital Space LLC is hiring a frontend-focused engineer to transform dense transfer-pricing data into clear, actionable interfaces. You will own the product look, feel and interactions, collaborating with our CTO, Lead Engineer and t...Read More>>.

Posted: September 14th, 2026
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London-based Full-Stack Engineer: AI-Driven Revenue Automation

Company IconMLabs Ltd
Location IconLondon

MLabs Ltd in London is seeking a highly capable software engineer to join a fast-growing AI startup. You will own end-to-end systems, build autonomous AI workflows, and scale data pipelines that drive revenue.You’ll work with TypeScript,...Read More>>.

Posted: September 14th, 2026
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Mid‑Senior Full‑Stack Engineer: Build Scalable Web Apps

Company IconKi Insurance
Location IconLondon

Ki Insurance is seeking a Full‑stack Engineer to build robust, scalable software for web‑based applications and enhance the Ki platform. You will design, implement and maintain APIs, collaborate with Product and UX, and drive quality through a...Read More>>.

Posted: September 14th, 2026
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Mid-Level Full-Stack Engineer - Fast-Paced, High Ownership

Company IconWayfindi
Location IconLondon

Emma is looking for a capable full-stack engineer with at least 2 years of experience to help build our backend and mobile/web apps.You will work with libraries and frameworks such as gRPC, Redux, React Native, React and Next.js on an ambit...Read More>>.

Posted: September 14th, 2026
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Full-Stack Engineer: Build AI-Driven Insurance Core Systems

Company IconCorgi
Location IconLondon

Corgi in Greater London is seeking a Full Stack Software Engineer to build and maintain systems that power our insurance operations. In this role, you will design and ship software across multiple essential functions, including underwriting and fi...Read More>>.

Posted: September 14th, 2026
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Senior Full-Stack Engineer – AI/ML Data Platforms (Hybrid)

Company Iconyour Jared
Location IconLondon

Gibson Jones is seeking a Full Stack Developer in London to join a high-performance compute team supporting AI and machine learning applications. The role is hybrid for 6 months with potential transition to remote work as the team integrates globa...Read More>>.

Posted: September 14th, 2026
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Senior .NET Full-Stack Engineer - AI-Driven, Secure Clearing

Company IconMarex Group
Location IconLondon

Marex Group is looking for a Software Developer specializing in C# .NET to enhance clearing technology with an AI-first approach. This role in London focuses on creating modern web-based platforms that prioritize security and compliance.The...Read More>>.

Posted: September 14th, 2026
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Senior Full-Stack Engineer (TS/React) - Hybrid, Event Platform

Company IconPULL UP LTD
Location IconLondon

PULL UP LTD in Greater London is looking for a senior software engineer to join our core engineering team. Your role will involve designing scalable backend services and building user interfaces using TypeScript, React, and Node.js. You will also...Read More>>.

Posted: September 21st, 2026
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Full-Stack Engineer (Java/React): Build Secure, Scalable Apps

Company IconJPMorgan Chase & Co.
Location IconLondon

JPMorgan Chase & Co. in Greater London is seeking a Software Engineer II to build secure, scalable full-stack applications within Global Technology Asset Management.You will work in a cross-functional agile team to design, develop, and oper...Read More>>.

Posted: September 21st, 2026
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Senior Full-Stack Engineer: Build Scalable Real-World Apps

Company IconOpenRent Ltd.
Location IconLondon

OpenRent Ltd. is seeking a Senior Full-stack Engineer to design and deliver scalable software solutions for the rental market. You will turn real-world problems into intuitive features used by millions.Your role will involve collaborating w...Read More>>.

Posted: September 21st, 2026
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Senior Full-Stack Engineer (Java + React) — AI-Driven Apps

Company IconGrid Dynamics
Location IconLondon

We are looking for a Senior Full-Stack Engineer to join our global Investment Banking client. You will be responsible for the development and overall implementation of AI-enabled web applications in a complex, critical and large cross-departmental...Read More>>.

Posted: September 21st, 2026
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Founding AI Full-Stack Engineer — Build Production-Ready AI

Company IconOho Group
Location IconLondon

Oho Group in London is looking for a Founding Full Stack Engineer to help turn a bold AI product into reality. You will build across the stack, from backend to user-facing interfaces, and shape early architecture as the platform scales.Join...Read More>>.

Posted: September 22nd, 2026
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Senior TS/React Full-Stack Engineer — London, Onsite + Bonus

Company IconClient Server
Location IconLondon

Client Server is hiring a Senior Full Stack Engineer for London onsite to £120k. You will join early in the UK operation, owning architecture, design decisions, and building products from ground up in a hands-on start-up environment.This r...Read More>>.

Posted: September 22nd, 2026
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Azure Cosmos DB Full-Stack Engineer | Cloud Data & Apps

Company IconGazelle Global Consulting Limited
Location IconLondon

Gazelle Global Consulting Limited invites an Azure Full Stack Engineer to join a major cloud and data engineering programme in London. The role is a 6-month contract with a hybrid model, requiring 1-3 days onsite.You will blend full stack d...Read More>>.

Posted: September 22nd, 2026
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Senior .NET/C# Full-Stack Engineer – Secure Identity on Azure

Company IconHCLTech
Location IconLondon

HCLTech is seeking a developer in Greater London to build secure, identity-aware applications using .NET Core and Azure. The role involves implementing authentication and authorisation solutions to modern identity standards, across cloud and on-pr...Read More>>.

Posted: September 22nd, 2026
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Senior Full-Stack Engineer — AI Startup (London, 4 Days)

Company IconInfused Solutions Ltd
Location IconLondon

Infused Solutions Ltd in London is seeking a Senior Full-Stack Engineer to join an early-stage AI startup building an agentic platform for institutional finance. You'll contribute across the stack and own features end-to-end.You will work c...Read More>>.

Posted: September 26th, 2026
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Python Full-Stack Engineer — Azure & AI Tools, London Onsite

Company IconAkkodis
Location IconLondon

Akkodis is seeking a Python Full Stack Developer for a London-based role with 3 days on site per week. The contract is initially for 6 months, with a daily rate between £700 and £800 and Inside IR35 status.You will join a high-performing...Read More>>.

Posted: September 27th, 2026
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Founding Full-Stack Engineer (£180k-£210k + Equity) at Kiki Club

Company IconJack & Jill
Location IconLondon

Job TitleFounding Full-Stack EngineerSalary£90k-£120k + £90k EquityCompany DescriptionKiki Club is a London-based, invite-only sublet marketplace that has raised $5.5M from Blackbird and executives fr...Read More>>.

Posted: September 27th, 2026
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