Job description
Staff Software Engineer
Company Overview
At Cloover, we're building the AI operating system for the energy transition — a platform that helps thousands of installation companies across Germany and Austria sell more, plan faster, and deliver better. We've secured $1.22B in total financing — including $1.2B in committed debt financing and a $22M Series A — and are just getting started on our European expansion.
Job Summary
We're looking for a Staff Software Engineer to join our Berlin team: someone who helps set technical direction, raises the bar across the engineering org, and solves the problems that others escalate. You'll report to our CTO and operate across squads.
Key Responsibilities
- 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.
- Identify systemic weaknesses before they become incidents. Design systems that self-monitor, degrade gracefully, and recover fast.
- 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.
- Architect and manage cloud infrastructure on Google Cloud Platform using Terraform.
- Integrate and harden authentication and authorisation flows on Auth0 (OAuth, SSO, session and token management).
- Champion AI tooling across the engineering team.
- 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.
Requirements / Qualifications
- 10+ years of professional software engineering experience, operating as a Staff or Senior engineer.
- Deep experience building high-stakes systems where reliability and correctness matter.
- Strong JavaScript and TypeScript across frontend and backend.
- Cloud infrastructure depth, ideally on Google Cloud Platform, with hands-on Terraform or equivalent IaC practice.
- Strong relational database expertise: schema design, indexing, query optimisation, and performance tuning at scale.
- Proven experience building well-designed APIs.
- Based in Berlin and energized by being in the room (office-first culture).
- Fully proficient in English (C2).
Preferred Qualifications
- Deep knowledge of auth protocols: OAuth, OpenID Connect, SSO, session management.
- German language skills.
Location
Berlin, Germany (On-site)
Employment Type
Full Time
Salary & Benefits
- Performance pay: Strong base, bonus tied to outcomes, and meaningful equity.
- Unlimited enterprise-grade AI.
- Prenzlauer Berg office with the latest Apple hardware.
- Free breakfast and dinner, stocked kitchen.
- 25 days vacation.
- Urban Sports Club (M) and company discounts.
Application Process
1. Intro call (30 min)
2. Hiring manager interview (45 min)
3. Case study (1 hour)
4. Offer & signed contract
