176 to 200 of 244 Full Stack Engineer Jobs in Central London

Senior Software Engineer – Shopify/FinTech Integrations Full Stack ( Backend-leaning | TypeScript ) London/Hybrid – 1 day per week in-office Up to £90k DOE + MacBook Pro + £600 wellbeing allowance 🚫 Visa sponsorship not available Join a VC-backed, fast-growing startup that’s redefining how customers shop for luxury fashion online. Backed … systems, drive innovation, and support global retail partnerships with seamless integrations. What You’ll Do Build and enhance core systems that drive the customer experience Work across the stack, with a backend focus in TypeScript & AWS Lead API integration efforts, especially with Shopify Improve performance, reliability, and scalability of the platform Embrace AI tools to boost productivity and … automate wherever possible Tech Stack Languages : TypeScript (core), Python/Ruby (data flow) Frontend : React preferred; Angular, Vue, or Node.js welcome Infrastructure : AWS Databases : Neo4j (nice to have) Integrations : Shopify About You Strong experience with TypeScript on the backend Confident managing complex API integrations (Shopify a big plus) Comfortable with React , Python , or similar technologies Experienced in cloud More ❯

Senior Python Engineer – Data & Distributed Systems Location: London (Hybrid) Type: Full-time, Permanent Salary: £120,000+ Equity Options Sector: FinTech About The Role My client is a mission-driven company within the Fin-Tech industry who is looking for a Senior Python Engineer to join their space. What You’ll Do Architect and build … cross-functionally to align engineering with business goals Contribute to open-source and internal tooling What We’re Looking For 5+ years of professional experience in backend or full-stack engineering Strong Python skills with experience in data-heavy , distributed systems Proven success in startup or scale-up environments Experience with cloud platforms (AWS, GCP), containerisation … Join Us? Work with a team of curious, driven engineers solving meaningful problems Flexible working, generous holiday, and wellness benefits Opportunity to shape the future of our tech stack and engineering culture Support for learning, conferences, and open-source contributions More ❯

Staff Software Engineer – AI/ML (Business Systems Intelligence) London (Hybrid – 2 days per week in office) An opportunity to take on a high-impact, hands-on leadership role within a scaling global SaaS company that’s using AI to reinvent how internal business systems and data work together. As a Staff Software Engineer (AI/… with large language models — creating intelligent tools and insights that enhance the way teams operate. This is a role with real influence: you’ll own the internal AI stack, mentor other engineers, and help define how AI and automation are adopted across the company. What You’ll Do Lead the design, architecture, and implementation of internal AI/… and deliver high-value AI applications. Mentor engineers and shape the company’s approach to internal AI enablement. What You’ll Bring 7+ years’ experience in backend or full-stack engineering, ideally within a SaaS or data-driven business. Strong knowledge of LLMs , prompt engineering, and fine-tuning approaches. Hands-on experience with AI/ML More ❯

Staff Software Engineer – AI/ML (Business Systems Intelligence) London (Hybrid – 2 days per week in office) An opportunity to take on a high-impact, hands-on leadership role within a scaling global SaaS company that’s using AI to reinvent how internal business systems and data work together. As a Staff Software Engineer (AI/… with large language models — creating intelligent tools and insights that enhance the way teams operate. This is a role with real influence: you’ll own the internal AI stack, mentor other engineers, and help define how AI and automation are adopted across the company. What You’ll Do Lead the design, architecture, and implementation of internal AI/… and deliver high-value AI applications. Mentor engineers and shape the company’s approach to internal AI enablement. What You’ll Bring 7+ years’ experience in backend or full-stack engineering, ideally within a SaaS or data-driven business. Strong knowledge of LLMs , prompt engineering, and fine-tuning approaches. Hands-on experience with AI/ML More ❯

that emphasises simplicity, efficiency, and rapid execution. Our goal is to remove obstacles, enabling you to achieve success faster and more effectively. Role Overview As a Senior Software Engineer, you will play a pivotal role in architecting and developing our next-generation web application and API. This role requires technical leadership, hands-on development, and mentoring of junior … API endpoints using NodeJS and Express, including detailed API documentation. Database Management: Design, optimize, and maintain complex SQL data models, ensuring efficient data structures, query performance, and reliability. Full-Stack Development: Develop responsive and performant front-end applications using ReactJS, focusing on UX/UI best practices. Integration & Automation: Architect and maintain integrations with external APIs … to enhance development efficiency. Qualifications and Key Skills Education: Bachelor’s in Computer Science or related field from a Tier 1 university. Experience: Minimum of 4 years of full-time professional experience in software development, with strong expertise in TypeScript, ReactJS, and Next.JS. Solid experience in building RESTful APIs Leadership: Proven track record of leading development teams and More ❯

that emphasises simplicity, efficiency, and rapid execution. Our goal is to remove obstacles, enabling you to achieve success faster and more effectively. Role Overview As a Senior Software Engineer, you will play a pivotal role in architecting and developing our next-generation web application and API. This role requires technical leadership, hands-on development, and mentoring of junior … API endpoints using NodeJS and Express, including detailed API documentation. Database Management: Design, optimize, and maintain complex SQL data models, ensuring efficient data structures, query performance, and reliability. Full-Stack Development: Develop responsive and performant front-end applications using ReactJS, focusing on UX/UI best practices. Integration & Automation: Architect and maintain integrations with external APIs … to enhance development efficiency. Qualifications and Key Skills Education: Bachelor’s in Computer Science or related field from a Tier 1 university. Experience: Minimum of 4 years of full-time professional experience in software development, with strong expertise in TypeScript, ReactJS, and Next.JS. Solid experience in building RESTful APIs Leadership: Proven track record of leading development teams and More ❯

Founding Software Engineer - AI Startup - Up to £150k 📍 London, Hybrid, 3 days in office 💰 £100–150k + generous equity 💻 Python, TypeScript, React + AI/ML toolings I'm working with a high-calibre, VC-backed startup that's building the infrastructure layer for intelligent human-AI collaboration, especially within regulated and high-complexity industries. They’ve assembled … a world-class founding team and are now looking for an exceptional Founding Engineer to help build their core platform. ✅ Ideal profile: 5+ years engineering experience (startup background preferred) Strong backend & full-stack skills (Python, Django, TypeScript, React) Hands on builder with high autonomy and bias to action Bonus: experience with LLMs, cloud infra … role: Huge ownership in a truly technical founding environment Exceptional team, high trust, fast execution Real-world impact building the operating system for next-gen work Founding Software Engineer - AI Startup - Up to £150k 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 ❯

Are you an AI engineer with strong software engineering fundamentals? Have you deployed AI models into production—not just trained them? Want to work on agentic systems, RAG pipelines, and LLM-powered tools? We're working with a high-growth GenAI consultancy building real-world, production-grade AI applications. With a team of 50+, the company partners with … and technically challenging. With strong client demand and deep partnerships (including OpenAI), the team is scaling fast across the UK, Singapore, and Australia. As a Senior Applied AI Engineer, you’ll take ownership of designing and deploying AI-powered applications that solve real client problems. You’ll work across full-stack delivery, from architecture … Lead and guide junior engineers within project teams Key Details Salary : £100,000–£130,000 + benefits Working model : Hybrid (3 days/week in London office) Tech stack : Python, LLMs (OpenAI/Claude), Docker, CI/CD, microservices, AWS If you're a strong backend or platform engineer passionate about GenAI and excited to ship More ❯

Are you an AI engineer with strong software engineering fundamentals? Have you deployed AI models into production—not just trained them? Want to work on agentic systems, RAG pipelines, and LLM-powered tools? We're working with a high-growth GenAI consultancy building real-world, production-grade AI applications. With a team of 50+, the company partners with … and technically challenging. With strong client demand and deep partnerships (including OpenAI), the team is scaling fast across the UK, Singapore, and Australia. As a Senior Applied AI Engineer, you’ll take ownership of designing and deploying AI-powered applications that solve real client problems. You’ll work across full-stack delivery, from architecture … Lead and guide junior engineers within project teams Key Details Salary : £100,000–£130,000 + benefits Working model : Hybrid (3 days/week in London office) Tech stack : Python, LLMs (OpenAI/Claude), Docker, CI/CD, microservices, AWS If you're a strong backend or platform engineer passionate about GenAI and excited to ship More ❯

clear vision. Our mission is to bring the intelligence of modern machine learning directly to the in-store shopping experience. Role: We’re looking for an experienced Backend Engineer to work closely with product, design, mobile, and machine learning team members to design & build experiences that re-define in-store shopping. You'll help help build engaging & intuitive … web experiences and the event-driven & real-time backend services that power them. You’ll work across the backend stack, real-time data flows and APIs on a backend designed for scale & flexibility. Responsibilities: Contribute to distributed, event-driven backend services connecting our web experience with information from remote devices and external data sources. Build and document APIs … layers Integrate AI-driven personalisation and real-time insights into user flows Contribute to overall system design: service boundaries, data ownership, scaling, and observability Essential Qualifications: Built modern full-stack applications w/focus on backend (Python/Java/Go) Worked with a variety of storage technologies (eg. Postgres, Mongo, Redis, Object) Experience with async More ❯

clear vision. Our mission is to bring the intelligence of modern machine learning directly to the in-store shopping experience. Role: We’re looking for an experienced Backend Engineer to work closely with product, design, mobile, and machine learning team members to design & build experiences that re-define in-store shopping. You'll help help build engaging & intuitive … web experiences and the event-driven & real-time backend services that power them. You’ll work across the backend stack, real-time data flows and APIs on a backend designed for scale & flexibility. Responsibilities: Contribute to distributed, event-driven backend services connecting our web experience with information from remote devices and external data sources. Build and document APIs … layers Integrate AI-driven personalisation and real-time insights into user flows Contribute to overall system design: service boundaries, data ownership, scaling, and observability Essential Qualifications: Built modern full-stack applications w/focus on backend (Python/Java/Go) Worked with a variety of storage technologies (eg. Postgres, Mongo, Redis, Object) Experience with async More ❯

Founding Engineer/Future CTO - Build the Future of Software Development Location: 4x a week in London office Salary: £80,000 - £100,000 + Stock Options (2% minimum) with increase in salary post-seed funding Stage: Pre-Seed Funded We’re partnering with an ambitious start-up that’s on a mission to completely rethink how software is … to join a small, high-impact team and help shape the next wave of software creation tools. The Opportunity Our client is looking for a talented, driven Founding Engineer to join a team of passionate innovators as they set out to change how software is made. With a vision to make software creation as seamless and natural as … in developing both the core product and features that will empower users to understand and build software at scale. What They’re Looking For Experience as a founding engineer, with an ambition to move into a CTO position within the next year Strong coder, ideally with experience in TypeScript and React alongside, back-end, and infrastructure development. Strong More ❯

Founding Engineer/Future CTO - Build the Future of Software Development Location: 4x a week in London office Salary: £80,000 - £100,000 + Stock Options (2% minimum) with increase in salary post-seed funding Stage: Pre-Seed Funded We’re partnering with an ambitious start-up that’s on a mission to completely rethink how software is … to join a small, high-impact team and help shape the next wave of software creation tools. The Opportunity Our client is looking for a talented, driven Founding Engineer to join a team of passionate innovators as they set out to change how software is made. With a vision to make software creation as seamless and natural as … in developing both the core product and features that will empower users to understand and build software at scale. What They’re Looking For Experience as a founding engineer, with an ambition to move into a CTO position within the next year Strong coder, ideally with experience in TypeScript and React alongside, back-end, and infrastructure development. Strong More ❯

top candidates to our partners working with the world’s leading AI research labs and fast-growing startups to help build cutting-edge technology. Role: LLM - Sr. Software Engineer – LLM Evaluation & Repository Validation Type of Role: Short-term Contract Engagement Duration: 1 month (with possible extensions) Commitment: 10–40 hrs/week (flexible, partial PST overlap required) Start … experience , including 1 + continuous years at top-tier product companies (e.g., Google, Stripe, Amazon, Apple, Meta, Microsoft, Datadog, Dropbox, Shopify, PayPal, IBM Research). Strong expertise in full-stack application development and deploying scalable, production-grade software. Deep understanding of software architecture, debugging, and code quality assessment . Proven ability to review code diffs and More ❯

Forward Deployed Engineer – London – Up to £100,000 per annum Are you a data-driven professional with a passion for delivering impactful solutions using Palantir Foundry? Do you excel in translating complex data challenges into actionable insights? If so, Morela has an exciting opportunity for you. Morela is proud to partner one of the fasted growing consultancies in … Europe, renowned for their innovative approach to data integration and analytics. As they continue to expand, they're seeking a skilled Forward Deployed Engineer to join their dynamic team. This role is perfect for someone who combines technical expertise with a consultative mindset, aiming to drive value across diverse projects. You'll be part of a forward-thinking … technology and real-world impact. Serving both public and private sectors, their services encompass strategic advisory, digital transformation, and end-to-end data engineering. As a Forward Deployed Engineer, you'll play a crucial role in designing and implementing data solutions that empower clients to make informed decisions. Core Responsibilities Data Integration : Connect and harmonise data from multiple More ❯

Forward Deployed Engineer – London – Up to £100,000 per annum Are you a data-driven professional with a passion for delivering impactful solutions using Palantir Foundry? Do you excel in translating complex data challenges into actionable insights? If so, Morela has an exciting opportunity for you. Morela is proud to partner one of the fasted growing consultancies in … Europe, renowned for their innovative approach to data integration and analytics. As they continue to expand, they're seeking a skilled Forward Deployed Engineer to join their dynamic team. This role is perfect for someone who combines technical expertise with a consultative mindset, aiming to drive value across diverse projects. You'll be part of a forward-thinking … technology and real-world impact. Serving both public and private sectors, their services encompass strategic advisory, digital transformation, and end-to-end data engineering. As a Forward Deployed Engineer, you'll play a crucial role in designing and implementing data solutions that empower clients to make informed decisions. Core Responsibilities Data Integration : Connect and harmonise data from multiple More ❯

Founding Software Engineer – AI Agents Start-Up 🚀 One of London’s most promising AI start-ups are looking for their first few Founding Engineers! 💡 About the Company Backed by world-class investors and built by Oxford, Cambridge, and Imperial educated founders with several startup acquisitions under their belt ! 🛠️ Tech Stack Python, TypeScript, Next.js, React, and many … more! Ideally looking for dynamic, backend leaning full-stack engineers 🎯 What do you need? 5+ years of experience in early stage or high growth companies 0-1 experience 🚀 AI environments are a huge plus! BSc (Or MSc/PhD) from a highly ranked university 💸 What’s on Offer: Highly competitive salary - all salaries are over £150k … chance to help shape company culture, technology, and trajectory The energy, speed, and ownership of an early-stage start-up - with real backing!! If you’re an ambitious engineer ready for your next big challenge, and want to be part of something truly special, this could be the opportunity that defines your career! Let’s talk More ❯

Founding Software Engineer – AI Agents Start-Up 🚀 One of London’s most promising AI start-ups are looking for their first few Founding Engineers! 💡 About the Company Backed by world-class investors and built by Oxford, Cambridge, and Imperial educated founders with several startup acquisitions under their belt ! 🛠️ Tech Stack Python, TypeScript, Next.js, React, and many … more! Ideally looking for dynamic, backend leaning full-stack engineers 🎯 What do you need? 5+ years of experience in early stage or high growth companies 0-1 experience 🚀 AI environments are a huge plus! BSc (Or MSc/PhD) from a highly ranked university 💸 What’s on Offer: Highly competitive salary - all salaries are over £150k … chance to help shape company culture, technology, and trajectory The energy, speed, and ownership of an early-stage start-up - with real backing!! If you’re an ambitious engineer ready for your next big challenge, and want to be part of something truly special, this could be the opportunity that defines your career! Let’s talk More ❯

Technical Lead Engineer/Director Key Technologies: C#, .NET, .NET Core, Azure, SQL Location: London Perm Role | Hybrid Working Structure Harrington Starr has partnered with a global Investment Bank, seeking to hire a Director level Engineer with extensive .NET development experience within investment banking. This person must be confident translating complex business needs into functional solutions … learning and development opportunities and career progression programs. Inclusive and diverse work environment promoting collaboration and engagement. Competitive remuneration package and employee benefits. Key Skills and Experience Advanced full-stack development skills (.NET, .NET Core, C#, Python, SQL) and cloud technology experience. Strong leadership experience managing high-performing development teams. Knowledge of banking products, financial analysis … and regulatory requirements. Experience delivering Agile projects, CI/CD, and DevSecOps solutions. Excellent problem-solving, analytical, and communication skills with global stakeholder engagement. Full, unrestricted right to work in the UK is a must. No sponsorship will be provided. Please apply via the link provided or reach out to me directly to book in a confidential phone More ❯

Technical Lead Engineer/Director Key Technologies: C#, .NET, .NET Core, Azure, SQL Location: London Perm Role | Hybrid Working Structure Harrington Starr has partnered with a global Investment Bank, seeking to hire a Director level Engineer with extensive .NET development experience within investment banking. This person must be confident translating complex business needs into functional solutions … learning and development opportunities and career progression programs. Inclusive and diverse work environment promoting collaboration and engagement. Competitive remuneration package and employee benefits. Key Skills and Experience Advanced full-stack development skills (.NET, .NET Core, C#, Python, SQL) and cloud technology experience. Strong leadership experience managing high-performing development teams. Knowledge of banking products, financial analysis … and regulatory requirements. Experience delivering Agile projects, CI/CD, and DevSecOps solutions. Excellent problem-solving, analytical, and communication skills with global stakeholder engagement. Full, unrestricted right to work in the UK is a must. No sponsorship will be provided. Please apply via the link provided or reach out to me directly to book in a confidential phone More ❯

London Market Underwriting & Reinsurance Performance team, consisting of Actuaries, Reinsurance Specialists, and Engineers, is focused on transforming the underwriting business with cutting-edge technology. As a Senior Software Engineer, you will play a pivotal role in researching, designing, testing, developing, and supporting software solutions that drive the future of Property & Casualty underwriting. This is an exciting opportunity to … be part of a dynamic, cross-functional team working on full-stack solutions such as Underwriting Dashboards and Actuarial Model Management platforms. Core Responsibilities: Collaborate with software engineers, data engineers, and underwriters to shape the future of underwriting. Improve workflows and maintain focus on the underwriting experience. Deliver software in small, incremental releases. Drive technical excellence More ❯

to Ki's success – allowing us to evolve underwriting intelligently and unlock massive scale. We're a multi-disciplined team, bringing together expertise in software and data engineering, full stack development, platform operations, algorithm research, and data science. Our squads focus on delivering high-impact features – we favour a highly iterative, analytical approach. We're looking … for a Staff Software Engineer to join our Engineering team. You will provide technical leadership for both delivery squads and the wider engineering organisation. Along with our engineering leadership, you’ll champion engineering excellence and high standards of quality through an environment of continuous improvement. You will be hands-on, directly delivering new impactful software. You will be … Opinionated regarding system architecture, able to suggest improvements and changes required to support delivery of new functionality, where required Required Skills and Experience: - Experience as a senior level engineer working across a modern web stack - Strong software engineering principles (SOLID, DRY, ER modelling) - Professional experience with a server-side language, ideally JVM based - Comfortable working with More ❯

to Ki's success – allowing us to evolve underwriting intelligently and unlock massive scale. We're a multi-disciplined team, bringing together expertise in software and data engineering, full stack development, platform operations, algorithm research, and data science. Our squads focus on delivering high-impact features – we favour a highly iterative, analytical approach. We're looking … for a Staff Software Engineer to join our Engineering team. You will provide technical leadership for both delivery squads and the wider engineering organisation. Along with our engineering leadership, you’ll champion engineering excellence and high standards of quality through an environment of continuous improvement. You will be hands-on, directly delivering new impactful software. You will be … Opinionated regarding system architecture, able to suggest improvements and changes required to support delivery of new functionality, where required Required Skills and Experience: - Experience as a senior level engineer working across a modern web stack - Strong software engineering principles (SOLID, DRY, ER modelling) - Professional experience with a server-side language, ideally JVM based - Comfortable working with More ❯