Founding Software Engineer

🚀 Founding Software Engineer – Product & Platform | GreenTech 📍 UK-based | Remote-first 💰 £70-100k Want to build technology that has a visible impact on the world around us? We're working with a growing green-tech company using science, data and software to help make cities and land greener. They're looking for a Senior Software Engineer to take ownership of their platform end-to-end. This is a genuine founding engineering role. You'll work directly with the CEO and a Senior Data Scientist, shaping the architecture, roadmap and product rather than simply maintaining someone else's. 🔨 What you'll own Build and ship features for site analysis and planting designOwn the platform across security, reliability and usabilityHarden and launch the existing AWS environmentOwn infrastructure-as-code and the deployment pipelineBuild proper alerting, observability and disaster-recovery processesImprove performance, accessibility and overall product polishDevelop multi-tenant SaaS capabilitiesWork directly with users and the CEO to turn real requirements into product features 💻 What we're looking for Strong TypeScript across Node.js and modern ReactSolid AWS + Infrastructure as Code experienceStrong understanding of application security — authentication, sessions, secrets, TLS, headers, WAF and IAMExperience running production services: CI/CD, containers, observability and safe migrationsTest-first mindset and a preference for clean, reviewable changesStrong product mindset with experience shipping user-facing features ⭐ Nice to have tRPC, Drizzle or WorkOS/Auth0/Clerk/CognitoPostGIS or geospatial experienceMulti-tenant SaaSExperience selling technology into UK public sector or enterprise If you're a Senior Engineer who wants real ownership, technical influence and the chance to build something with a genuine environmental impact, apply to be considered!