Director Data Science Job at Peec AI GmbH (Berlin)

Job Description

A defining leadership role with real impact and ownership at one of Europe’s fastest-growing Series A startups.

Build, mentor, and lead an elite data science team as a trusted, empathetic player-coach
Clearly communicate complex technical ideas to executives, customers, and partners
Personally design, train, deploy, and own the models that power Peec AI’s AI Search recommendations
Develop and ship novel algorithms that reverse-engineer AI search and LLM behavior
Own the full ML lifecycle end-to-end — from first-principles research and rigorous experimentation to production deployment, monitoring, and continuous improvement
Architect and evolve scalable data and ML systems
Make high-leverage decisions across data pipelines, modeling approaches, evaluation frameworks, and model serving
Write and review production-grade code at an exceptional standard
Set the technical bar for the entire organization

8+ years of professional data science experience
At least 3+ years in a leadership or managerial role at a top-tier high growth startup, or FAANG level tech company (e.g., Tech Lead, EM, SDM)
World-class data science leader with deep technical mastery and proven leadership
Demonstrable history of personally owning and scaling complex ML systems from raw research ideas to reliable, high-impact production deployments
Exceptional command of Python and applied machine learning
Strong systems-level instincts spanning APIs, data pipelines, ML infrastructure, and production reliability
Deep, first-principles understanding of LLMs and AI search systems
Experience making consequential architectural and modeling decisions in cloud-native environments (preferably GCP)
Experience using tools like FastAPI, Docker, and modern data platforms
Outstanding judgment, communication, and problem-solving ability
Credibility to set direction, earn trust, and lead through extreme ambiguity

Widely recognized contributions to open-source projects or foundational ML tooling
Publicly visible side or research projects demonstrating exceptional technical depth
Publications or talks at top-tier ML or AI conferences
Founder experience or senior technical leadership in high-growth startups
Fluency in TypeScript