Senior AI Data Expert (f/m/x)

Location: Hamburg, Germany; full-time, permanent employee

Company

hirify.global builds consumer products in mobile gaming and operates a rewarded user engagement and acquisition platform for publishers.

What you will do

• Design, develop, and maintain scalable ETL pipelines on Databricks for app, web, and marketing partner data.
• Build and manage the Databricks data lakehouse, migrate legacy data products, and implement transformations with PySpark.
• Monitor nightly and near-real-time tracking pipelines, troubleshoot issues, and optimize data quality and integrity.
• Turn open business questions into decision-ready analysis across data engineering, machine learning, data science, and analytics.
• Use Claude and similar AI tools daily for planning, development, debugging, documentation, communication, and parallel agent-assisted work.
• Maintain structured AI project context, integrate AI into version-control workflows, and collaborate across functional areas.

Requirements

• At least 4 years of professional experience across data engineering, machine learning, data science, or analytics.
• Experience in at least two of these data disciplines and a degree in a related field or bootcamp experience.
• At least one year of current, hands-on Databricks experience designing, implementing, and optimizing ETL processes.
• Hands-on experience with Databricks and AWS services such as S3, Kinesis, and Lambda or similar technologies.
• High proficiency in Python, SQL, and PySpark, with experience writing production-ready code.
• Fluent English is required. Daily hands-on use of AI tools, structured context and memory management, and AI-assisted Git worktree workflows are core requirements.

Nice to have

• Experience with GitLab CI/CD pipelines.
• Familiarity with PostgreSQL.

Culture & Benefits

• Fast-paced, impact-oriented environment focused on essential work and rapid iteration.
• Strong ownership culture with direct communication and cross-functional problem solving.
• Transport subsidy and learning budget.
• Wellness and gym benefits, workation options, and bi-weekly team lunches.