🚀 Senior Software Engineer – Product & Platform | GreenTech

📍 UK-based | Remote-first

💰 £70-90k

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 design
• Own the platform across security, reliability and usability
• Harden and launch the existing AWS environment
• Own infrastructure-as-code and the deployment pipeline
• Build proper alerting, observability and disaster-recovery processes
• Improve performance, accessibility and overall product polish
• Develop multi-tenant SaaS capabilities
• Work 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 React
• Solid AWS + Infrastructure as Code experience
• Strong understanding of application security — authentication, sessions, secrets, TLS, headers, WAF and IAM
• Experience running production services: CI/CD, containers, observability and safe migrations
• Test-first mindset and a preference for clean, reviewable changes
• Strong product mindset with experience shipping user-facing features

⭐ Nice to have

• tRPC, Drizzle or WorkOS/Auth0/Clerk/Cognito
• PostGIS or geospatial experience
• Multi-tenant SaaS
• Experience 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!