At thermondo, our mission is to decarbonize every home, and technology is our primary lever for change.

We are disrupting a massive industry bogged down by legacy systems and manual work. This is where you come in. We build the intelligent software and automation that gives us a decisive edge, allowing us to operate at a scale and efficiency our competitors can't match.

We are looking for a Staff Engineer - Full Stack (f/m/d) to serve as a strategic technical leader. In this role, you will not just solve the problems we hand you; you will identify the problems we should be solving. You will report to a Domain Lead and act as a technically-focused peer, helping to define the vision for our platform and the AI strategies that will differentiate us in the market.

• Drive cross-team technical strategy. You will architect the high-level systems that connect our customer apps, internal tools, and data backbone, ensuring we build for long-term scalability and resilience.
• Operate with high-level autonomy. You will translate vague business objectives into concrete technical roadmaps, proactively identifying opportunities for impact without needing a Product Manager to define every step.
• Lead our AI Engineering evolution. You will co-design the patterns for integrating LLMs into our code - handling reliability, cost, and evaluation - while demonstrating to the wider organization how to build AI-native software.
• Act as a force multiplier. You will elevate the entire department by removing developer bottlenecks, mentoring engineers, and championing AI-augmented workflows.
• Bridge the gap between Business and Tech. You will partner with leadership to navigate ambiguity, translating complex architectural trade-offs into business value and leading large-scale initiatives to delivery.

• Experienced: You have significant experience (10+ years) in software engineering, including operating at a Lead or Staff level in a modern product company.
• Full Stack: You have deep, T-shaped expertise. You are great in Python and Node.js/TypeScript. You understand backend and frontend. You can reason about data flows and architecture, and you can build them too.
• "Manager of One": You are self-directed. If dropped into ambiguity, you create clarity. You can effectively manage your time between coding, designing, and communicating without needing constant oversight.
• Pragmatic: You avoid over-engineering. You understand that "boring technology" is often best, but you know exactly when to spend innovation tokens (specifically on AI and Cloud scalability).
• Great Communicator: You write clear, persuasive technical documents (RFCs, ADRs). You can lead a room of engineers to a consensus even when opinions differ. You can articulate the business implications of technology in a room full of VPs.

• Production AI: Experience deploying LLMs in production (managing context windows, prompt engineering, vector databases, and evaluation frameworks).
• Event-Driven Systems: Deep experience with asynchronous architectural patterns and specific systems like RabbitMQ, Google Pub/Sub and Kafka.
• Legacy Migration: Experience strangling a monolith or migrating legacy systems to modern cloud-native architectures without downtime.
• Familiarity with Sales: Experience writing software that enables Sales teams (ex: CRM, scheduling).
• A passion for climate tech. You're motivated by our mission to decarbonize homes and are excited to apply your skills to a problem that matters.

• Join a team of Product Managers, Software Engineers, Designers, Data and Salesforce people who are excellent in their craft and are happy to share their knowledge and help you grow alongside them
• Our team is using the latest frameworks and is working with  a modern tech stack to build powerful products for our customers, craftspeople, and internal teams
• We offer a challenge with purpose - the better our tech, the more people will live climate-neutral and the better the world becomes for future generations
• We offer a fantastic culture in the tech team and beyond 
  • Modern office in the heart of Berlin
  • You can bring your dog one day/week
  • Work from home - up to 3 days a week
  • You can lease a job bike
  • You receive an Urban Sports Club membership
  • Corporate Benefits at more than 100 partners
  • nilo.health membership
  • 20% employer contribution to your pension and disability insurance

• An initial interview with your Talent Acquisition partner, Jenny 
• If we are both on the positive side, you will talk to our VP of Engineering Pedro
• Then, you will have the opportunity to meet with your to-be teammates. 
• Finally, Become a thermondino!