101 to 125 of 136 Full Stack Engineer Jobs in Central London

Type : Full-time 📍 Location : Hybrid, London UK (Min 2 days a week in Chancery Lane office) 💰 Compensation : Competitive salary 25 days annual holiday About Rainforest Builder Rainforest Builder is Africa’s leading forest restoration company, on a mission to restore one million hectares of degraded land to natural … business, and, ultimately, delivers high-integrity data into the hands of stakeholders and other third parties. Role Overview As a Senior Product Engineer at Rainforest Builder, you will take full responsibility for an operational domain within our organisation. You’ll be the one clarifying the problem ...

team and will be responsible for building, maintaining, and scaling the infrastructure that powers Hive’s next generation of products. This Senior DevOps Engineer will roll up their sleeves and help us continually evolve the foundation of our platform, enabling faster delivery speed and greater scale, as well … Important Details · Location: Hybrid (3 days/week in office). Candidates must currently reside within commuting distance of London, UK. · Employment Type: Full-time · Work Authorization: Candidates must have existing right to work in the UK. Visa sponsorship is not available for this role. · To Apply: Submit ...

Technical Lead Engineer - React/AI We are: Wizeline, a global AI-native technology solutions provider, develops cutting-edge, AI-powered digital products and platforms. We partner with clients to leverage data and AI, accelerating market entry and driving business transformation. As a global community of innovators … Skills Experience leading teams and direct contact with client 8 years + working with React and TypeScript Demonstrated expertise in adapting to different full-stack environments. Strong Software Engineering fundamentals AI knowledge an experience. Nice-to-have: AI Tooling Proficiency : Leverage one or more AI tools ...

hiring a Founding Engineer to help us reimagine the future of hospitality . This is a high-impact, architect-level role where you will be the first engineering hire and design and build the core technical foundation of a new platform from the ground up. Expect a fast … with strong architecture/complex backend systems experience Deep hands-on experience with AWS/Azure/GCP , distributed systems, and backend/full-stack development Strong foundation in system design, APIs, secure infrastructure, and data flows Proven ability to build products or platforms from ...

Senior Software Engineer Hayes, London Hybrid We are looking for a Senior Web Application Developer with 5+ years of experience in building and maintaining scalable, high-quality applications to join our growing tech team. As a senior member, you’ll play a key role in driving technical decisions … professional experience building web applications using Ruby, Rails, React, and TypeScript. Strong backend development skills with a willingness to contribute across the full stack Proactive and self-driven, able to take ownership of tasks from conception to deployment. Excellent communication skills, capable of translating complex technical ...

Founding Engineer | Seed-stage AI SaaS (£100k + equity) We’re hiring for a seed-stage SaaS startup backed by Balderton (near £5m raised) that’s using AI to fundamentally redefine its product. The company is pre-PMF and mid-pivot , at a genuine inflection point, and looking … hands-on engineer (~80% coding) to help shape the product, architecture, and technical foundations from the ground up. 💰 Compensation Up to £100k + meaningful equity 🧑 💻 What you’ll be doing Full-stack engineering (backend-leaning): Next.js (FE + BE), Node.js, TypeScript , with some legacy ...

Founding Engineer/Developer (C# React AI) London/WFH to £140k Are you a technologist who enjoys building systems from scratch, looking for a new opportunity to get stuck into? You could be progressing your career in a Founding Engineer role at a scaling tech … start-up that is producing an AI enhanced smart workflow and orchestration platform for Private Equity firms. As the Founding Engineer you'll take the MVP, built in C# with React frontend, hosted on AWS, through design and development phases into pilots and launch, bringing development in-house ...

forward-deployed pre-sales engineer who partners with the strategy and sales teams to design, build, and present AI-powered proof of concepts for clients. You will own the full technical arc of each POC — from brief to build to client demo — and establish a reusable … scalable framework that compounds in value with every engagement. ### Who are they? They are looking for a **Pre-Sales Engineer** to be their forward-deployed technical force in the sales cycle. This is a **hands-on, client-facing role**: you will rapidly design and build proof ...

Founding Engineer 📍 Central London 💸 Up to £200k + Founding Equity We’re partnering with an ambitious Generative AI startup building cutting-edge Voice AI products designed to redefine how humans interact with machines. The company is led by Oxford and Cambridge educated founders who have collectively achieved three … feels natural , and you want real influence over product and technical direction , you’ll feel very at home here! 💼 Requirements 4+ years building full-stack applications with Python/JavaScript/TypeScript Experience working in a fast-moving, high-agency engineering environment Computer Science, Engineering ...

clients. She will pick the best candidates from ivee's network. The next step is to create an ivee profile. Junior Back-end Engineer Company Description: Fast-growing scale-up This is a great opportunity to join a fast-moving engineering team as a Junior Backend Engineer … designing, integrating, and maintaining RESTful endpoints Support database design and optimisation (e.g. PostgreSQL, MongoDB) Collaborate with front-end and product teams to deliver full-stack features Write clean, testable, and maintainable code Help improve system performance, scalability, and security Participate in code reviews and learn from ...

career in coding. You will also have the reassurance of a job guarantee (£25K-£40K) upon completion. Whether you are working full-time, part-time or are unemployed, this package has the flexibility to be completed at a pace that suits you and can be completed … friendly advisors will be in touch. Keywords: Website, Web Developer, Business Development, Website, Web Design, Front End, Back End, Full Stack, Computer Programmer, Computer Systems Engineer, Systems Analyst, Programmer Analyst, Database Administrator, Front-end Developer, Mobile App Developer, Software Developer, Data Scientist, Cloud Engineer. ...

Founding Engineer 📍 London 💰 Very Competitive Salary + Up to 1% Equity! A technical founder behind one of Britain’s largest bootstrapped exits is building again. This is his third startup , following two successful exits, including one nine-figure acquisition. The mission is to create the AI operating layer … systems , shaping both the technical architecture and product direction in a true zero-to-one environment. 🛠 What You Bring 4+ years building full-stack applications with Python/JavaScript/TypeScript Experience working in a fast-moving, high-agency engineering environment Computer Science, Engineering, or STEM ...

prominent player working with a global leaders in high quality services. What you'll be doing: We are seeking a brilliant .Net Engineer to help create amazing experiences for their clients and their customers through their best in industry SaaS platform. You will be involved in challenging, complex … development for industry leading companies, as well as smaller start up projects Centered on a tech stack that includes C# .NET, React AWS, and event-driven microservices, this position is tailored for engineers ready to thrive in modern cloud-based ecosystems. As an Engineer you will ...

excited by complex, high-precision problems where quality truly matters? A fast-growing LegalTech AI scale-up is applying GenAI across the full intellectual property lifecycle. Their platform is used by IP teams globally to automate drafting, litigation workflows, and document analysis. With over £50m in funding from … technical corpora Own systems from prototype through to production Focus on robustness, evaluation, and reliability in precision-critical use cases Collaborate closely with full-stack engineers and domain experts What they’re looking for Strong AI research background with top publications or a strong software engineering ...

understanding layers. Team & Environment Small, high-calibre engineering team TypeScript monorepo Node.js services tRPC API layer Postgres + Prisma GCP infrastructure Strong product-engineer ownership model High autonomy, high accountability Engineers work directly with Risk, Finance, Operations, Sales, and Shawbrook stakeholders. Problems don’t arrive as neatly written … across multiple parallel initiatives Cross-functional coordination (Risk, Finance, Bank stakeholders) Maintaining high engineering standards Contributing technically to key projects Required Experience Strong full-stack engineering background (Node/TypeScript preferred) Experience leading projects end-to-end Experience mentoring or leading engineers Exposure to stakeholder management ...

Senior Software Engineer The Opportunity On behalf of a global powerhouse in FinTech Infrastructure , we are seeking a Senior Software Engineer . Our client operates one of the largest financial networks, serving as the digital backbone for thousands of global financial institutions. This is a senior … tier appointment for an engineer who excels at building resilient, high-concurrency systems and wants to lead the digitalization of global financial markets. The Technical Stack You will be working within a modern, engineering-first culture. The core stack includes: The Engine: Expert-level ...

Location: Fully Remote UK, Ireland, Portugal Package: £90k – £130k + High Equity + Benefits The Stack: Python (FastAPI), Go, TypeScript, Next.js, GCP, Temporal The Mission: Fixing the plumbing of healthcare! Healthcare data is a mess of fragmented lab results, wearable pings, and antiquated doctor-patient silos. This company … engine that estimates true out-of-pocket costs. Owning features from a "rough idea" on a call with a customer to a polished, full-stack deployment. Healthcare has real-world edge cases. You need to be pragmatic, not a purist. If the code is elegant ...

Principal Software Engineer About the Company: A publicly-traded fintech (NYSE-listed) operating one of the world's most-visited platforms for finance news and data, serving millions of users globally. The engineering team is responsible for infrastructure that handles high-volume real-time market data and powers … scale, designing infrastructure for performance and reliability, and modernizing legacy systems that underpin a platform millions depend on daily. The work spans the full technical stack from data ingestion and processing architecture to infrastructure optimization with the autonomy to make architectural decisions that directly impact system ...

systems that ship to real users, not just papers? Have you published at top AI venues and want to build in industry full time? Are you ready to join a small, elite team with a genuinely high technical bar? A fast-scaling, YC-backed LegalTech AI company … Improve retrieval quality (chunking, ranking, metadata strategies, failure analysis) Prototype and productionise applied research ideas into product workflows Collaborate closely with backend/full-stack engineers to deploy features end-to-end What they’re looking for New Grad/Early Career, ideally ...

exceptional research engineers and scientists taking a novel approach to accurate database reasoning. About the role This is a founding research engineer role, with the opportunity to set the research agenda and shape the architecture from day one. Drive foundational research and engineering for reasoning over complex tabular … optimize, and maintain scalable training and evaluation pipelines Fine-tune foundation model embeddings into high-value downstream tasks Work hands-on across the full stack, from research ideas to deployed systems Guide and mentor an exceptional team of research engineers Required experience Proven ability to lead ...

cases, failure modes, and product boundaries Help define what “AI-native products” should look like from first principles Required experience Strong experience shipping full-stack or product-focused systems in production Comfortable across frontend, backend, and data layers Experience working with APIs, databases, and complex data ...

Founding Engineer I am supporting a well funded early stage AI startup building real time coaching technology embedded directly into live sales calls. Their platform delivers instant, contextual guidance during conversations, surfacing the right prompts and discovery questions as the call unfolds. The company raised $1.6M in seed … fastest moving areas of enterprise software, with genuinely novel technology and strong early validation. They are now hiring their first Founding Engineer to work directly with the CTO. The Opportunity This is a true 0 to 1 role. You will design, ship and own product ...

Senior Data Engineer | £600 per day Outside IR35 | 6 Month Contract A PE-backed asset/wealth management firm managing multi-billion pounds in assets is seeking a Senior Data Engineer to design and deliver a new Azure-based data warehouse. The organisation is replacing … week) 6 month project Start: End of March One stage interview process This role requires someone comfortable making architectural decisions across the full data stack rather than operating within a single silo. You will work closely with the CTO and help shape the foundations ...

Squirrel is partnering with a pioneering team building real-time AI coaching technology for sales teams. As a Founding Engineer, you will work directly with technical leadership to design, build, and deploy core features that deliver instant, contextual guidance during live sales calls. As an early team member … impact on the company’s trajectory and growth. Key Responsibilities Build and deploy core features end-to-end across our React + NestJS stack Own the full product journey from ideation to production Make foundational architectural decisions and leave a mark on the codebase Gather ...

Quant Developer – Python/AWS - Full-time A quantitative trading firm is seeking a Quant Developer to join its engineering team. The role sits within the development function and works closely with the CTO, researchers, and trading teams to build and maintain the systems that support live trading … issues while improving system resilience and reliability Participate in post-incident reviews and help implement improvements to prevent future failures Work across the stack when required, including backend services, cloud infrastructure, and development tooling Required Experience Strong software engineering experience building and maintaining production systems Strong Python development ...