1,201 to 1,225 of 2,635 Permanent Full Stack Engineer Jobs

Principal JavaScript Engineer (TypeScript/React/Node.js) £150,000–£170,000 + Equity | Hybrid – 3 days in London We’re helping a VC-backed SaaS scaleup reinvent how organisations manage and approve spend, from software requests to supplier onboarding, and they’re gearing up for serious growth. With enterprise clients already on board and revenue climbing, they … re looking for an outstanding Principal Engineer to drive their platform forward. The company in a nutshell Funding : $25M Series A from top-tier investors Leadership : Founders with a track record of building one of Europe’s best-known B2B scale-ups Growth : Plans to 10× revenue and expand to 200+ enterprise customers within 3 years What’s … buzzwords Ship fast — multiple times a day — thanks to a rock-solid CI/CD setup Collaborate closely with product, design, and leadership to shape the roadmap Tech stack you’ll be working with : TypeScript, React, Node.js, AWS Serverless (Lambda, DynamoDB, EventBridge) What you’ll be doing: This isn’t just about writing code, it’s about owning More ❯

Principal JavaScript Engineer (TypeScript/React/Node.js) £150,000–£170,000 + Equity | Hybrid – 3 days in London We’re helping a VC-backed SaaS scaleup reinvent how organisations manage and approve spend, from software requests to supplier onboarding, and they’re gearing up for serious growth. With enterprise clients already on board and revenue climbing, they … re looking for an outstanding Principal Engineer to drive their platform forward. The company in a nutshell Funding : $25M Series A from top-tier investors Leadership : Founders with a track record of building one of Europe’s best-known B2B scale-ups Growth : Plans to 10× revenue and expand to 200+ enterprise customers within 3 years What’s … buzzwords Ship fast — multiple times a day — thanks to a rock-solid CI/CD setup Collaborate closely with product, design, and leadership to shape the roadmap Tech stack you’ll be working with : TypeScript, React, Node.js, AWS Serverless (Lambda, DynamoDB, EventBridge) What you’ll be doing: This isn’t just about writing code, it’s about owning More ❯

GraphQL Full Stack Engineer - TypeScript | Cloud-Native | Contract (Outside IR35) Location: West London (Hybrid - 2 days/week on site) Contract: 6 months initial (extensions highly likely) Start: ASAP Eligibility: UK-based candidates only Rate: Market rates GraphQL-focused Software Engineer who can design, implement, and evolve high-performing APIs that scale. More ❯

Senior Full Stack/Backend Developer (Contract – AI-First) We’re seeking an AI-first Senior Full Stack or Backend Developer to play a key role in shaping the backend of our next-generation B2C platform. You’ll work closely with our front-end team to design and deliver robust, scalable APIs … and security . Proven AI-assisted development workflow. Ability to work autonomously within established technical frameworks. Nice to Have: React/Next.js, Azure, Payload CMS, microservices architecture. Contract: Full-time, initial term 3–6 months Start: ASAP Location: Liverpool - Hybrid To apply, please send your CV, AI tool usage examples, day rate, and references. More ❯

Senior Full Stack/Backend Developer (Contract – AI-First) We’re seeking an AI-first Senior Full Stack or Backend Developer to play a key role in shaping the backend of our next-generation B2C platform. You’ll work closely with our front-end team to design and deliver robust, scalable APIs … and security . Proven AI-assisted development workflow. Ability to work autonomously within established technical frameworks. Nice to Have: React/Next.js, Azure, Payload CMS, microservices architecture. Contract: Full-time, initial term 3–6 months Start: ASAP Location: Liverpool - Hybrid To apply, please send your CV, AI tool usage examples, day rate, and references. More ❯

Senior Full Stack/Backend Developer (Contract – AI-First) We’re seeking an AI-first Senior Full Stack or Backend Developer to play a key role in shaping the backend of our next-generation B2C platform. You’ll work closely with our front-end team to design and deliver robust, scalable APIs … and security . Proven AI-assisted development workflow. Ability to work autonomously within established technical frameworks. Nice to Have: React/Next.js, Azure, Payload CMS, microservices architecture. Contract: Full-time, initial term 3–6 months Start: ASAP Location: Liverpool - Hybrid To apply, please send your CV, AI tool usage examples, day rate, and references. More ❯

Java Developer Senior Software Engineer (Java, AWS, ideally React and frontend experience) Permanent Salary of £50/70,000 per annum Remote with occasional travel to London Must be eligible for SC Clearance Digital Skills are working with a niche consultancy, a specialist in providing AWS and technology services across the UK Government. The client are undegoing rapid … Central Government department. The team are responsibe for implementing software design, development and testing solutions based upon Java in to AWS private cloud infrastrucuture. You will join a full team of engineers and business focuse analysts, responsible for requirements analysis and specification; architecture design; implementation and delivery You will build applications using Java, deployed in highly secure AWS … cloud You will be responsible for full stack development, using Java and React The role is remote with travel up to twice per month About you Experienced Java Software Engineer React and Javascript experience Exposure to full stack software development (Ideally React) AWS or secure cloud experience Eligible for SC More ❯

AI Software Engineer Hybrid role in Soho £80-120k depending on experience We’re on a mission to reinvent how AI understands people — not through CVs or data points, but through story, reasoning, and curiosity. We’re building systems that listen, interpret, and understand why people say what they say. The goal? Create AI that perceives human … potential , not just human input. If you love working on ideas that feel impossible — keep reading. The Role We’re looking for an engineer who blends technical depth with creative instinct . You’ll work directly 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 already existed — this will feel familiar. What You’ll Be Building Core intelligence systems: LLM orchestration, semantic reasoning, and voice understanding Fast, intuitive interfaces that make human-AI interaction feel alive Rapid More ❯

AI Software Engineer Hybrid role in Soho £80-120k depending on experience We’re on a mission to reinvent how AI understands people — not through CVs or data points, but through story, reasoning, and curiosity. We’re building systems that listen, interpret, and understand why people say what they say. The goal? Create AI that perceives human … potential , not just human input. If you love working on ideas that feel impossible — keep reading. The Role We’re looking for an engineer who blends technical depth with creative instinct . You’ll work directly 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 already existed — this will feel familiar. What You’ll Be Building Core intelligence systems: LLM orchestration, semantic reasoning, and voice understanding Fast, intuitive interfaces that make human-AI interaction feel alive Rapid More ❯

AI Software Engineer Hybrid role in Soho £80-120k depending on experience We’re on a mission to reinvent how AI understands people — not through CVs or data points, but through story, reasoning, and curiosity. We’re building systems that listen, interpret, and understand why people say what they say. The goal? Create AI that perceives human … potential , not just human input. If you love working on ideas that feel impossible — keep reading. The Role We’re looking for an engineer who blends technical depth with creative instinct . You’ll work directly 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 already existed — this will feel familiar. What You’ll Be Building Core intelligence systems: LLM orchestration, semantic reasoning, and voice understanding Fast, intuitive interfaces that make human-AI interaction feel alive Rapid More ❯

Software Engineer (PHP/WordPress) Location: Fully Remote Type: Permanent Industry: Technology/Digital Solutions Are you an experienced Software Engineer with a passion for PHP and WordPress development? Would you like to join a forward-thinking team offering real opportunities to upskill into mobile and modern backend technologies? Our client is seeking a talented Software … Engineer to join their growing development team. You'll play a key role in maintaining and enhancing existing WordPress and PHP applications, while contributing to the design and build of new features and digital products. This is a fully remote position offering flexibility, career growth, and exposure to a wide range of modern technologies. Key Responsibilities Develop, maintain … MySQL or other relational databases. Experience with version control (e.g. Git ). Strong problem-solving and communication skills. Eagerness to learn new technologies and grow into mobile or full-stack development. Desirable Skills Experience with modern PHP frameworks (e.g. Laravel, Symfony). Exposure to React Native or other mobile development tools. Understanding of RESTful APIs and More ❯

Software Engineer (PHP/WordPress) Location: Fully Remote Type: Permanent Industry: Technology/Digital Solutions Are you an experienced Software Engineer with a passion for PHP and WordPress development? Would you like to join a forward-thinking team offering real opportunities to upskill into mobile and modern backend technologies? Our client is seeking a talented Software … Engineer to join their growing development team. You'll play a key role in maintaining and enhancing existing WordPress and PHP applications, while contributing to the design and build of new features and digital products. This is a fully remote position offering flexibility, career growth, and exposure to a wide range of modern technologies. Key Responsibilities Develop, maintain … MySQL or other relational databases. Experience with version control (e.g. Git ). Strong problem-solving and communication skills. Eagerness to learn new technologies and grow into mobile or full-stack development. Desirable Skills Experience with modern PHP frameworks (e.g. Laravel, Symfony). Exposure to React Native or other mobile development tools. Understanding of RESTful APIs and More ❯

Senior Full-Stack Engineer Location : Remote Start : ASAP Hours : 40 Hours/Week Initial Term : 6 months (extendable) About The Company Our client is building a digital healthcare platform which supports video consultations, AI-assisted care records, and automated triage and product recommendations within CQC-compliant workflows. The Role You’ll help build an … end-to-end TypeScript platform (frontend + backend) for telemedicine and clinical operations. Tech Stack (Required) Frontend: React Backend: Node.js (TypeScript) Nice-to-haves Healthcare experience More ❯

Junior-Mid Full Stack Java Developer £40,000–£45,000 + Benefits Considering candidates based in either Bristol/Cheltenham/Manchester Hybrid (fortnightly London visits) Are you a Full Stack Java Developer with around 2+ years of experience looking for your next challenge? This is a rare opportunity to join a … central UK Government. You’ll be developing secure, high-impact software that helps protect UK data, while gaining valuable client-facing experience and working across a modern tech stack in an Agile environment. On top of all that, you'll be assigned a personal career coach and given on-going development and progression opportunities. 🌟 What’s on offer More ❯

Junior-Mid Full Stack Java Developer £40,000–£45,000 + Benefits Considering candidates based in either Bristol/Cheltenham/Manchester Hybrid (fortnightly London visits) Are you a Full Stack Java Developer with around 2+ years of experience looking for your next challenge? This is a rare opportunity to join a … central UK Government. You’ll be developing secure, high-impact software that helps protect UK data, while gaining valuable client-facing experience and working across a modern tech stack in an Agile environment. On top of all that, you'll be assigned a personal career coach and given on-going development and progression opportunities. 🌟 What’s on offer More ❯

Junior-Mid Full Stack Java Developer £40,000–£45,000 + Benefits Considering candidates based in either Bristol/Cheltenham/Manchester Hybrid (fortnightly London visits) Are you a Full Stack Java Developer with around 2+ years of experience looking for your next challenge? This is a rare opportunity to join a … central UK Government. You’ll be developing secure, high-impact software that helps protect UK data, while gaining valuable client-facing experience and working across a modern tech stack in an Agile environment. On top of all that, you'll be assigned a personal career coach and given on-going development and progression opportunities. 🌟 What’s on offer More ❯

Junior-Mid Full Stack Java Developer £40,000–£45,000 + Benefits Considering candidates based in either Bristol/Cheltenham/Manchester Hybrid (fortnightly London visits) Are you a Full Stack Java Developer with around 2+ years of experience looking for your next challenge? This is a rare opportunity to join a … central UK Government. You’ll be developing secure, high-impact software that helps protect UK data, while gaining valuable client-facing experience and working across a modern tech stack in an Agile environment. On top of all that, you'll be assigned a personal career coach and given on-going development and progression opportunities. 🌟 What’s on offer More ❯

Senior Software Engineer Full Stack - Ruby on Rails, React Up to £85k Fully Remote - must be UK based A fast-growing sports tech company building high-performance, data-driven products for a rapidly expanding global user base are searching for a Senior Fullstack Engineer. As part of a cross-functional Product Team , you'll … the platform —not just build it. You’ll have a real voice in technical decisions , mentor others , and engage directly with customers to build tools they love. Tech Stack: Ruby on Rails, React, React Native, GraphQL 💼 What You’ll Be Doing: Build and maintain fullstack features using Rails and React Native Collaborate across teams to deliver customer-centric More ❯

Senior Software Engineer Full Stack - Ruby on Rails, React Up to £85k DOE. Fully Remote - must be UK based A fast-growing sports tech company building high-performance, data-driven products for a rapidly expanding global user base are searching for a Senior Fullstack Engineer. As part of a cross-functional Product Team , you … the platform -not just build it. You'll have a real voice in technical decisions , mentor others , and engage directly with customers to build tools they love. Tech Stack: Ruby on Rails, React, React Native, GraphQL ?? What You'll Be Doing: Build and maintain fullstack features using Rails and React Native Collaborate across teams to deliver customer-centric More ❯

Senior Full Stack/Backend Developer (Contract AI-First) We re seeking an AI-first Senior Full Stack or Backend Developer to play a key role in shaping the backend of our next-generation B2C platform. You ll work closely with our front-end team to design and deliver robust, scalable APIs … Strong understanding of RESTful API design, database optimization, and security . Proven AI-assisted development workflow. Nice to Have: React/Next.js, Azure, Payload CMS, microservices architecture. Contract: Full-time, initial term 3 6 months Start: ASAP Liverpool - Hybrid To apply, please send your CV, AI tool usage examples, day rate, and references. More ❯

Senior Software Engineer to help lead the technical evolution of this critical platform. The Opportunity You’ll join a growing team building scalable, secure systems using React , Python , and AWS , helping to drive our mission to cut the impact of flooding in half.This is more than just building products — it’s about delivering real-world impact through technology. … What You’ll Do Design, build, and deploy full-stack features across a modern cloud-native architecture Architect performant, secure systems that scale to meet growing demand Lead technical projects with high business impact, from concept to delivery Collaborate cross-functionally with Product, Data Science, and Operations teams Mentor developers, promote best practices, and improve engineering … workflows Shape technical strategy and contribute to long-term system improvements Drive code quality, observability, and resiliency across services Tech Stack Frontend : React, JavaScript/TypeScript Backend : Python (FastAPI, Flask, or Django), ideally with geospatial data processing Cloud : AWS (Lambda, ECS, RDS, S3, API Gateway, etc.) DevOps : Docker, CI/CD pipelines, Git Orchestration : Airflow or similar tools More ❯

Junior-Mid Full Stack Java Developer You could be just the right applicant for this job Read all associated information and make sure to apply. £40,000 £45,000 + Benefits Considering candidates based in either Bristol/Cheltenham/Manchester Hybrid (fortnightly London visits) Are you a Full Stack … central UK Government. You ll be developing secure, high-impact software that helps protect UK data, while gaining valuable client-facing experience and working across a modern tech stack in an Agile environment. On top of all that, you'll be assigned a personal career coach and given on-going development and progression opportunities. What s on offer More ❯

Founding Engineer – London – AI Start-up Location: London (Hybrid) Compensation: Up to £150K Atarus have partnered with a rapidly growing YC-backed AI start-up looking to hire a Full Stack Engineer . This is an opportunity to join at the ground floor of a company that’s already secured a strong … seeing major traction with customers ranging from Series A startups to decacorns. 🔍 What You’ll Be Doing Building and shipping features end-to-end across a modern tech stack Working directly with the founders on architecture, product, and scaling decisions Experimenting rapidly and contributing to a culture of innovation and ownership Helping shape the technical direction and engineering … culture of the company 🛠️ Tech Stack Golang/Python | TypeScript | Next.js | AWS | FastAPI | LangChain You don’t need to know every tool, they’re looking for curious builders who love to learn fast. 💰 Compensation & Equity There are no preset limits on salary or equity. If you believe you’re top-tier, they’ll match it. ✅ What They’re More ❯

Founding Engineer – London – AI Start-up Location: London (Hybrid) Compensation: Up to £150K Atarus have partnered with a rapidly growing YC-backed AI start-up looking to hire a Full Stack Engineer . This is an opportunity to join at the ground floor of a company that’s already secured a strong … seeing major traction with customers ranging from Series A startups to decacorns. 🔍 What You’ll Be Doing Building and shipping features end-to-end across a modern tech stack Working directly with the founders on architecture, product, and scaling decisions Experimenting rapidly and contributing to a culture of innovation and ownership Helping shape the technical direction and engineering … culture of the company 🛠️ Tech Stack Golang/Python | TypeScript | Next.js | AWS | FastAPI | LangChain You don’t need to know every tool, they’re looking for curious builders who love to learn fast. 💰 Compensation & Equity There are no preset limits on salary or equity. If you believe you’re top-tier, they’ll match it. ✅ What They’re More ❯

Founding Engineer – London – AI Start-up Location: London (Hybrid) Compensation: Up to £150K Atarus have partnered with a rapidly growing YC-backed AI start-up looking to hire a Full Stack Engineer . This is an opportunity to join at the ground floor of a company that’s already secured a strong … seeing major traction with customers ranging from Series A startups to decacorns. 🔍 What You’ll Be Doing Building and shipping features end-to-end across a modern tech stack Working directly with the founders on architecture, product, and scaling decisions Experimenting rapidly and contributing to a culture of innovation and ownership Helping shape the technical direction and engineering … culture of the company 🛠️ Tech Stack Golang/Python | TypeScript | Next.js | AWS | FastAPI | LangChain You don’t need to know every tool, they’re looking for curious builders who love to learn fast. 💰 Compensation & Equity There are no preset limits on salary or equity. If you believe you’re top-tier, they’ll match it. ✅ What They’re More ❯