As our Revenue Analytic & AI Data Engineer, you will be the architect of our data ecosystem. You’ll take full ownership of making customer and revenue data accessible, building our data infrastructure from the ground up, and deploying AI to supercharge our growth. Please note that for this role, C2 English proficiency is required. This is a full-time, on-site position based in Berlin. What You’ll Do Build the Foundation: Architect and build our data warehouse from square one, ensuring a scalable and "single source of truth" environment. Data Accessibility: Design and maintain robust pipelines to make data from our customers, HubSpot, and Aircall fully usable and accessible across the organization. AI Integration: Implement AI-driven workflows and predictive models to automate insights, lead scoring, and trend forecasting. Hands-on Engineering: Work directly in Python (or TypeScript) to integrate diverse data sources yourself Strategic Impact: Collaborate with Sales, Marketing, and Success teams to transform complex datasets into powerful BI dashboards that drive faster, smarter decisions. What Makes You a Great Fit Startup Veteran : You have proven experience working in a Seed, Series A, or Series B startup. You thrive in ambiguity and know how to build lean, effective systems. Data Architect : You have at least 3 years of experience in BI/Data Engineering, with a track record of building data warehouses and integrating SaaS tools (HubSpot and Aircall experience is a huge plus). Technically Fluent : You are an expert in Python (TypeScript is a bonus) and have a deep understanding of modern BI tools and SQL. AI-Forward : You are passionate about how AI can optimize revenue processes and have the skills to implement it. Proactive & Structured : You don’t wait for a ticket; you identify bottlenecks in our data flow and fix them. Linguistic Skills : You speak fluent English. Why Join Us? Be part of one of the fastest growing VC-backed startup in Germany with 2000 satisfied B2B customers. A vibrant, collaborative office culture where great ideas happen face-to-face — we're a full in-person team (5 days/week) in a beautiful Berlin office near Hackescher Markt. Enjoy opportunities for personal and professional growth. Embrace the freedom to innovate and make quick changes in a dynamic team. Perks include gym membership, coffee, regular team events, MacBook and more. Receive competitive pay. Even if you don’t meet every requirement, we encourage you to apply! Imposter syndrome shouldn't hold you back—we value talent and passion above all. About Reonic At Reonic, we’re on a mission to simplify renewable technology with our B2B SaaS solutions for solar, storage, and heat pumps. Backed by top-tier investors and trusted by 2000 business customers, we’re growing fast—and we need YOU to help us accommodate our new and existing customers.