1,801 to 1,825 of 2,845 Permanent Full Stack Engineer Jobs

Founding Software Engineer - AI Start-Up (Central London | On-Site | Equity + Salary)🧑‍🚀 One of London’s most promising AI start-ups are looking for their first few Founding Engineers! Backed by top-tier investors and led by an elite founding team from Oxford, Cambridge, and Imperial , this venture is already attracting serious attention within the AI space … Currently in stealth mode, they’re now searching for a Founding Software Engineer to join the core team - someone ambitious, technically exceptional, and ready to help build the company from the ground up! 💡 About the Company Founded by alumni of successful AI start-ups, this is a business led by people who’ve done it before - and done … well. With strong funding and a clear product vision, they're building cutting-edge technology that leverages the latest advances in AI to solve high-impact problems. 🛠️ Tech Stack: Python - core backend and ML integration TypeScript/Node.js/React - full-stack development AWS - scalable, production-grade infrastructure This is a hands-on role More ❯

Founding Software Engineer - AI Start-Up (Central London | On-Site | Equity + Salary)🧑‍🚀 One of London’s most promising AI start-ups are looking for their first few Founding Engineers! Backed by top-tier investors and led by an elite founding team from Oxford, Cambridge, and Imperial , this venture is already attracting serious attention within the AI space … Currently in stealth mode, they’re now searching for a Founding Software Engineer to join the core team - someone ambitious, technically exceptional, and ready to help build the company from the ground up! 💡 About the Company Founded by alumni of successful AI start-ups, this is a business led by people who’ve done it before - and done … well. With strong funding and a clear product vision, they're building cutting-edge technology that leverages the latest advances in AI to solve high-impact problems. 🛠️ Tech Stack: Python - core backend and ML integration TypeScript/Node.js/React - full-stack development AWS - scalable, production-grade infrastructure This is a hands-on role More ❯

Founding Software Engineer - AI Start-Up (Central London | On-Site | Equity + Salary)🧑‍🚀 One of London’s most promising AI start-ups are looking for their first few Founding Engineers! Backed by top-tier investors and led by an elite founding team from Oxford, Cambridge, and Imperial , this venture is already attracting serious attention within the AI space … Currently in stealth mode, they’re now searching for a Founding Software Engineer to join the core team - someone ambitious, technically exceptional, and ready to help build the company from the ground up! 💡 About the Company Founded by alumni of successful AI start-ups, this is a business led by people who’ve done it before - and done … well. With strong funding and a clear product vision, they're building cutting-edge technology that leverages the latest advances in AI to solve high-impact problems. 🛠️ Tech Stack: Python - core backend and ML integration TypeScript/Node.js/React - full-stack development AWS - scalable, production-grade infrastructure This is a hands-on role More ❯

Founding Software Engineer - AI Start-Up (Central London | On-Site | Equity + Salary)🧑‍🚀 One of London’s most promising AI start-ups are looking for their first few Founding Engineers! Backed by top-tier investors and led by an elite founding team from Oxford, Cambridge, and Imperial , this venture is already attracting serious attention within the AI space … Currently in stealth mode, they’re now searching for a Founding Software Engineer to join the core team - someone ambitious, technically exceptional, and ready to help build the company from the ground up! 💡 About the Company Founded by alumni of successful AI start-ups, this is a business led by people who’ve done it before - and done … well. With strong funding and a clear product vision, they're building cutting-edge technology that leverages the latest advances in AI to solve high-impact problems. 🛠️ Tech Stack: Python - core backend and ML integration TypeScript/Node.js/React - full-stack development AWS - scalable, production-grade infrastructure This is a hands-on role More ❯

Founding Software Engineer – AI (Python/Typescript) £150,000 – £175,000 + meaningful equity On-site in London (£10K relocation provided) Join a deeply technical AI-native startup founded by PhDs and researchers from Cambridge, Imperial, and other top European and US institutions . This is an opportunity to work directly with a team who’ve published at … leading AI conferences, built open-source tools used across the industry, and scaled high-performance systems from first principles. Now, they’re hiring a Founding Software Engineer to help build the next generation of reasoning tools powered by large language models. The product is already live with paying customers, and the company is well-funded with serious growth … ambitions. What you'll work on: Architecting and scaling LLM-powered applications Building efficient inference pipelines and backend infrastructure Working across the stack to ship production-grade code fast Collaborating directly with the founders and early technical hires What they’re looking for: A degree from a world-leading university (e.g. Cambridge, Oxford, EPFL, ETH Zurich, ENS, TUM More ❯

Founding Software Engineer – AI (Python/Typescript) £150,000 – £175,000 + meaningful equity On-site in London (£10K relocation provided) Join a deeply technical AI-native startup founded by PhDs and researchers from Cambridge, Imperial, and other top European and US institutions . This is an opportunity to work directly with a team who’ve published at … leading AI conferences, built open-source tools used across the industry, and scaled high-performance systems from first principles. Now, they’re hiring a Founding Software Engineer to help build the next generation of reasoning tools powered by large language models. The product is already live with paying customers, and the company is well-funded with serious growth … ambitions. What you'll work on: Architecting and scaling LLM-powered applications Building efficient inference pipelines and backend infrastructure Working across the stack to ship production-grade code fast Collaborating directly with the founders and early technical hires What they’re looking for: A degree from a world-leading university (e.g. Cambridge, Oxford, EPFL, ETH Zurich, ENS, TUM More ❯

Founding Software Engineer - AI (Python/Typescript) £150,000 - £175,000 + meaningful equity On-site in London (£10K relocation provided) Join a deeply technical AI-native startup founded by PhDs and researchers from Cambridge, Imperial, and other top European and US institutions . This is an opportunity to work directly with a team who've published at … leading AI conferences, built open-source tools used across the industry, and scaled high-performance systems from first principles. Now, they're hiring a Founding Software Engineer to help build the next generation of reasoning tools powered by large language models. The product is already live with paying customers, and the company is well-funded with serious growth … ambitions. What you'll work on: Architecting and scaling LLM-powered applications Building efficient inference pipelines and backend infrastructure Working across the stack to ship production-grade code fast Collaborating directly with the founders and early technical hires What they're looking for: A degree from a world-leading university (e.g. Cambridge, Oxford, EPFL, ETH Zurich, ENS, TUM More ❯

Founding Software Engineer – AI (Python/Typescript) £150,000 – £175,000 + meaningful equity On-site in London (£10K relocation provided) Join a deeply technical AI-native startup founded by PhDs and researchers from Cambridge, Imperial, and other top European and US institutions . This is an opportunity to work directly with a team who’ve published at … leading AI conferences, built open-source tools used across the industry, and scaled high-performance systems from first principles. Now, they’re hiring a Founding Software Engineer to help build the next generation of reasoning tools powered by large language models. The product is already live with paying customers, and the company is well-funded with serious growth … ambitions. What you'll work on: Architecting and scaling LLM-powered applications Building efficient inference pipelines and backend infrastructure Working across the stack to ship production-grade code fast Collaborating directly with the founders and early technical hires What they’re looking for: A degree from a world-leading university (e.g. Cambridge, Oxford, EPFL, ETH Zurich, ENS, TUM More ❯

Founding Software Engineer – AI (Python/Typescript) £150,000 – £175,000 + meaningful equity On-site in London (£10K relocation provided) Join a deeply technical AI-native startup founded by PhDs and researchers from Cambridge, Imperial, and other top European and US institutions . This is an opportunity to work directly with a team who’ve published at … leading AI conferences, built open-source tools used across the industry, and scaled high-performance systems from first principles. Now, they’re hiring a Founding Software Engineer to help build the next generation of reasoning tools powered by large language models. The product is already live with paying customers, and the company is well-funded with serious growth … ambitions. What you'll work on: Architecting and scaling LLM-powered applications Building efficient inference pipelines and backend infrastructure Working across the stack to ship production-grade code fast Collaborating directly with the founders and early technical hires What they’re looking for: A degree from a world-leading university (e.g. Cambridge, Oxford, EPFL, ETH Zurich, ENS, TUM More ❯

Job Title: Junior Application Software Engineer - Java + TypeScript + React Location: Manchester (Hybrid - 3 days in office) Salary: £35,000 - £42,000 per year About the Role: We're looking for a motivated Junior Application Software Engineer to join a collaborative software team in Manchester. This role is perfect for someone with a solid foundation … in Java, TypeScript, and React , looking to grow their career and gain exposure to full-stack development, cloud technologies, and agile delivery. Key Responsibilities: Develop and maintain web applications using Java, TypeScript, and React Assist in the design and implementation of software solutions in a collaborative team environment Write clean, efficient, and well-tested code Participate More ❯

robust APIs and web applications using .NET and React Collaborate with cross-functional teams to deliver modern, Azure-hosted solutions Develop clean, testable, and maintainable code across the full stack Integrate with complex healthcare data systems and APIs Support continuous improvement across architecture, tooling, and CI/CD pipelines Participate in design reviews and mentoring within More ❯

robust APIs and web applications using .NET and React Collaborate with cross-functional teams to deliver modern, Azure-hosted solutions Develop clean, testable, and maintainable code across the full stack Integrate with complex healthcare data systems and APIs Support continuous improvement across architecture, tooling, and CI/CD pipelines Participate in design reviews and mentoring within More ❯

LLM Engineer - 120k - Hybrid Do you want to work for a business thats set to become the UKs next unicorn? We're looking for engineers who can take existing LLMs and shape their outputs into polished, user-facing features. You'll collaborate closely with product and design, and make AI experiences that feel seamless, intelligent, and trustworthy. The … between Senior and Staff level, so you'll be working alongside some of the best minds in the field. What we're looking for: Experience with LLM APIs Full-stack experience, including Python Bonus: start-up experience What's on offer: 120,000 Equity Flexible hybrid working If you're passionate about AI, we'd love More ❯

LLM Engineer - 120k - Hybrid Do you want to work for a business thats set to become the UKs next unicorn? We're looking for engineers who can take existing LLMs and shape their outputs into polished, user-facing features. You'll collaborate closely with product and design, and make AI experiences that feel seamless, intelligent, and trustworthy. The … between Senior and Staff level, so you'll be working alongside some of the best minds in the field. What we're looking for: Experience with LLM APIs Full-stack experience, including Python Bonus: start-up experience What's on offer: 120,000 Equity Flexible hybrid working If you're passionate about AI, we'd love More ❯

LLM Engineer - £120k - Hybrid Do you want to work for a business that’s set to become the UK’s next unicorn?🦄✨ We're looking for engineers who can take existing LLMs and shape their outputs into polished, user-facing features. You'll collaborate closely with product and design, and make AI experiences that feel seamless, intelligent, and … between Senior and Staff level, so you'll be working alongside some of the best minds in the field. What we're looking for: Experience with LLM APIs Full-stack experience, including Python Bonus: start-up experience👀 What's on offer: £120,000 Equity Flexible hybrid working If you're passionate about AI, we'd love More ❯

LLM Engineer - £120k - Hybrid Do you want to work for a business that’s set to become the UK’s next unicorn?🦄✨ We're looking for engineers who can take existing LLMs and shape their outputs into polished, user-facing features. You'll collaborate closely with product and design, and make AI experiences that feel seamless, intelligent, and … between Senior and Staff level, so you'll be working alongside some of the best minds in the field. What we're looking for: Experience with LLM APIs Full-stack experience, including Python Bonus: start-up experience👀 What's on offer: £120,000 Equity Flexible hybrid working If you're passionate about AI, we'd love More ❯

LLM Engineer - £120k - Hybrid Do you want to work for a business that's set to become the UK's next unicorn? We're looking for engineers who can take existing LLMs and shape their outputs into polished, user-facing features. You'll collaborate closely with product and design, and make AI experiences that feel seamless, intelligent, and … between Senior and Staff level, so you'll be working alongside some of the best minds in the field. What we're looking for: Experience with LLM APIs Full-stack experience, including Python Bonus: start-up experience What's on offer: £120,000 Equity Flexible hybrid working If you're passionate about AI, we'd love More ❯

LLM Engineer - £120k - Hybrid Do you want to work for a business that’s set to become the UK’s next unicorn?🦄✨ We're looking for engineers who can take existing LLMs and shape their outputs into polished, user-facing features. You'll collaborate closely with product and design, and make AI experiences that feel seamless, intelligent, and … between Senior and Staff level, so you'll be working alongside some of the best minds in the field. What we're looking for: Experience with LLM APIs Full-stack experience, including Python Bonus: start-up experience👀 What's on offer: £120,000 Equity Flexible hybrid working If you're passionate about AI, we'd love More ❯

through national programmes and grants, helping everyone find the tools to overcome challenges and thrive.We’re now looking for a Back End Developer to join us on a full-time, permanent basis, working 37 hours per week. The Benefits - Salary of £43,042 per annum (inclusive of £1,044 market supplement and £480 home working allowance)- An annual … flu jabs vouchers- Cycle to work scheme- Investing in your professional development with ongoing quality training and career development opportunitiesThis is a brilliant opportunity for a talented software engineer who’s confident working with Node.js, TypeScript, and PostgreSQL to join a team that values creativity and growth.You’ll be enabled to keep learning, experiment with new ideas, and … and data models- Experience managing PostgreSQL databases including, schema design and optimisationThe closing date for this role is Sunday 9th November 2025.Other organisations may call this role Software Engineer, Software Developer, Back End Software Engineer, Server-Side Developer, Full Stack Developer, or API Developer.Our commitment to Equality, Diversity & Inclusion:We are happy More ❯

through national programmes and grants, helping everyone find the tools to overcome challenges and thrive. Were now looking for a Back End Developer to join us on a full-time, permanent basis, working 37 hours per week. The Benefits - Salary of £43,042 per annum (inclusive of £1,044 market supplement and £480 home working allowance) - An annual … jabs vouchers - Cycle to work scheme - Investing in your professional development with ongoing quality training and career development opportunities This is a brilliant opportunity for a talented software engineer whos confident working with Node.js, TypeScript, and PostgreSQL to join a team that values creativity and growth. Youll be enabled to keep learning, experiment with new ideas, and use … models - Experience managing PostgreSQL databases including, schema design and optimisation The closing date for this role is Sunday 9th November 2025. Other organisations may call this role Software Engineer, Software Developer, Back End Software Engineer, Server-Side Developer, Full Stack Developer, or API Developer. Our commitment to Equality, Diversity & Inclusion: We are More ❯

Senior Software Support Engineer Hybrid – London £85,000 - £100,000 An innovative eCommerce SaaS company in London who have a global customer base and extremely innovative product suite are in need of an experienced Support Engineer (Software & Infrastructure). This will be a hugely impactful role, working with Ruby on rails & JavaScript SaaS applications, AWS cloud … environments and Linux-based systems. The new Senior Software Support Engineer will be part of a senior team and focus on identifying software issues across a broad range of software products, focusing on fixing bugs and the route cause analysis of these issues. If you have a full stack software engineering background (JavaScript and … previous Ruby on Rails) and really see the importance of ensuring a positive user experience through maintaining and improving software applications, this could be the Senior Software Support Engineer opportunity for you! What You’ll Do Own product stability end-to-end: investigate, reproduce, and resolve issues across the stack. Define and optimise our bug fixing and resolution More ❯

Senior Software Support Engineer Hybrid – London £85,000 - £100,000 An innovative eCommerce SaaS company in London who have a global customer base and extremely innovative product suite are in need of an experienced Support Engineer (Software & Infrastructure). This will be a hugely impactful role, working with Ruby on rails & JavaScript SaaS applications, AWS cloud … environments and Linux-based systems. The new Senior Software Support Engineer will be part of a senior team and focus on identifying software issues across a broad range of software products, focusing on fixing bugs and the route cause analysis of these issues. If you have a full stack software engineering background (JavaScript and … previous Ruby on Rails) and really see the importance of ensuring a positive user experience through maintaining and improving software applications, this could be the Senior Software Support Engineer opportunity for you! What You’ll Do Own product stability end-to-end: investigate, reproduce, and resolve issues across the stack. Define and optimise our bug fixing and resolution More ❯

We want our engineers to work hand-in-hand with AI-powered coding tools to ship quickly without compromising technical excellence or data protection. As a Senior Software Engineer, you will play a crucial role in ensuring technology becomes a key pillar of our next phase of growth, whilst helping define how we apply this framework. You’ll … Be a champion for technology across Go Swag, helping non-technical teams embrace new tools and ways of working. Who we’re looking for You’re an experienced engineer who’s excited about the seismic changes happening in software development. You don’t see AI tools as a replacement for good engineering practices, but as an opportunity to … of the following requirements: Proven experience in a senior or lead engineering role, ideally at a high-growth company or startup. Demonstrable expertise in either back-end or full-stack positions. Strong experience with modern web technologies (e.g. Pyhton, React, Next.js, Vercel, TypeScript, AWS). Familiarity with code-generation LLMs such as Claude Code, GitHub Copilot More ❯

We want our engineers to work hand-in-hand with AI-powered coding tools to ship quickly without compromising technical excellence or data protection. As a Senior Software Engineer, you will play a crucial role in ensuring technology becomes a key pillar of our next phase of growth, whilst helping define how we apply this framework. You’ll … Be a champion for technology across Go Swag, helping non-technical teams embrace new tools and ways of working. Who we’re looking for You’re an experienced engineer who’s excited about the seismic changes happening in software development. You don’t see AI tools as a replacement for good engineering practices, but as an opportunity to … of the following requirements: Proven experience in a senior or lead engineering role, ideally at a high-growth company or startup. Demonstrable expertise in either back-end or full-stack positions. Strong experience with modern web technologies (e.g. Pyhton, React, Next.js, Vercel, TypeScript, AWS). Familiarity with code-generation LLMs such as Claude Code, GitHub Copilot More ❯

We want our engineers to work hand-in-hand with AI-powered coding tools to ship quickly without compromising technical excellence or data protection. As a Senior Software Engineer, you will play a crucial role in ensuring technology becomes a key pillar of our next phase of growth, whilst helping define how we apply this framework. You’ll … Be a champion for technology across Go Swag, helping non-technical teams embrace new tools and ways of working. Who we’re looking for You’re an experienced engineer who’s excited about the seismic changes happening in software development. You don’t see AI tools as a replacement for good engineering practices, but as an opportunity to … of the following requirements: Proven experience in a senior or lead engineering role, ideally at a high-growth company or startup. Demonstrable expertise in either back-end or full-stack positions. Strong experience with modern web technologies (e.g. Pyhton, React, Next.js, Vercel, TypeScript, AWS). Familiarity with code-generation LLMs such as Claude Code, GitHub Copilot More ❯