Your Mission

As our Data Architect (f/m/d), you will take ownership of the design, evolution, and governance of hallo theo’s data infrastructure. You will define the blueprint for how data flows through our systems, from ingestion to consumption, and ensure our platform is scalable, secure, and built for growth. Your work will directly impact our ability to make fast, data-driven decisions and deliver outstanding experiences for property managers, tenants, and internal teams alike.

Your Responsibilities

• Design and maintain the architectural roadmap for our data platform (e.g., BigQuery, Airbyte, dbt, etc.)
• Define best practices for data modeling, warehousing, data governance, and orchestration
• Ensure scalability, reliability, and cost-efficiency of our data infrastructure
• Collaborate closely with Data Engineers, Analysts, and Product teams to enable high-quality data products
• Define naming conventions, data catalog structures, and data lineage tracking
• Guide the transition from batch pipelines to event-based architectures
• Support compliance with GDPR and NIS2 regulations through architectural best practices
• Evaluate and integrate new technologies and tools as the data stack evolves
• Act as a mentor for Data Engineers and support technical decision-making

Preferred Background

• Min. 3+ years of experience in architecture roles (Engineering roles doesn’t apply for the experience duration)
• Solid understanding of modern data stacks (e.g., GCP, Snowflake, BigQuery, Airflow, Airbyte, dbt, Kafka, etc.)
• Proven experience designing scalable and secure data architectures in a production environment
• Strong SQL and data modeling skills (dimensional modeling, Data Vault, etc.)
• Hands-on experience with orchestration and transformation tools (Airflow, dbt, etc.)
• Experience with data classification at scale
• Knowledge of data governance, metadata management, and data cataloging
• Familiarity with infrastructure-as-code, version control (Terraform), CI/CD pipelines
• Fluent in English; German is a big plus

Nice to Have

• Experience with event-driven architectures (Kafka, Pub/Sub, etc.)
• Knowledge of real estate, proptech, or ERP systems (e.g., Impower, etg24, Domus, Haufe PowerHaus)
• Background in building self-service analytics environments
• Experience with compliance frameworks like GDPR, NIS2, or ISO 27001 Why Join Us

You’ll join a fast-growing organization shaping the future of property management in Germany. We value initiative, trust, and personal growth — and we’re building a culture where people take ownership and drive change.

About us

At hallo theo, we are revolutionizing the traditional residential property management industry. The global residential real estate market boasts a value of over $270 trillion, but still operates like in the 90s with outdated, non-digital, and inefficient practices employed by management companies. Especially in Germany, we have witnessed the issues firsthand. Whether you’re a tenant or a landlord, chances are you’ve encountered your fair share of frustrations with property managers.

That’s why we are building a cutting-edge platform that reimagines the role of traditional property managers, empowering them with digital tools and technology. Through our innovative software, data analytics, and artificial intelligence, we’re enhancing the property management experience by leaps and bounds—making it ten times better than what you’ve come to expect.