Staff Software Engineer

Cloover is building an AI operating system for the energy transition, replacing spreadsheets and phone calls for installation companies. They are seeking a Staff Software Engineer to set technical direction, lead cross-functional initiatives, and shape systems across backend, frontend, and infrastructure.

• Set technical direction and lead complex, cross-functional initiatives end-to-end: architectural decisions across APIs, infrastructure, and data systems through to production and long-term ownership, bringing other engineers with you.
• Identify systemic weaknesses before they become incidents. Design systems that self-monitor, degrade gracefully, and recover fast. Establish the reliability practices that make that the norm across the team.
• Own and evolve our backend and frontend systems (Node.js, Next.js, React, TypeScript). Design APIs that are scalable, secure, and easy to build on.
• Model, optimise, and operate our PostgreSQL data layer: schema design, indexing, query optimisation, and migrations that ship safely.
• Architect and manage cloud infrastructure on Google Cloud Platform using Terraform, keeping environments consistent, auditable, and built for the scale we're heading toward.
• Integrate and harden authentication and authorisation flows on Auth0 (OAuth, SSO, session and token management) across the platform, balancing security with a frictionless user experience.
• Champion AI tooling across the engineering team: not just using it yourself, but defining how we build with it. Push the boundaries of what our AI operating system can do.
• Mentor junior engineers. Develop technical leads, run architecture reviews, and shape how we hire and evaluate engineering talent.
• Collaborate daily with Product, Ops, Finance, and Design, translating ambiguous cross-functional problems into well-scoped, reliably shipped solutions.

• 10+ years of professional software engineering experience, operating as a Staff or Senior engineer — leading initiatives, not just executing them.
• Deep experience building high-stakes systems where reliability and correctness matter more than raw scale.
• Strong JavaScript and TypeScript across frontend and backend. Comfortable across the full stack and opinionated about quality.
• Cloud infrastructure depth, ideally on Google Cloud Platform, with hands-on Terraform or equivalent IaC practice at production scale.
• Strong relational database expertise: schema design, indexing, query optimisation, and performance tuning at scale.
• Proven experience building well-designed APIs that others can rely on and build on top of.
• Works without waiting to be directed. Takes cross-functional ownership. Moves fast and brings others with them.
• Based in Berlin and energized by being in the room. We're intentionally office-first.
• Fully proficient in English (C2).

• Performance pay. Strong base, bonus tied to outcomes, and meaningful equity — recognised when it happens, not locked behind annual cycles.
• AI-first & unthrottled. Unlimited enterprise-grade AI — no caps, no approval process.
• Real ownership on a real mission. From day one you're shaping decisions that impact thousands of installers.
• Grow faster than anywhere else. You'll work directly alongside the founding team and world-class investors.
• Prenzlauer Berg office with the latest Apple hardware. Free breakfast and dinner, stocked kitchen, regular team events, 25 days vacation, Urban Sports Club (M), and company discounts.