Principal Data Engineer

Location: Krakow, Poland; hybrid work with a blend of working from home and the Kraków office

Salary: 29,000–39,000 PLN gross per month on an employment contract

Company

hirify.global is a home improvement company operating brands including Castorama, B&Q, Screwfix, Brico Dépôt, and Koçtaş.

What you will do

• Define and drive data platform and data engineering strategy aligned with Group Technology objectives.
• Lead architecture decisions and establish scalable engineering standards across data pipelines, storage, and processing.
• Design and deliver resilient, high-performing, cost-efficient data platforms and production-ready pipelines.
• Drive CI/CD, automated testing, observability, DevOps, platform automation, data quality, governance, and security.
• Provide technical leadership across multiple squads and lead business-critical initiatives spanning teams, systems, and geographies.
• Mentor engineers, support hiring and capability development, and evaluate emerging technologies.

Requirements

• Ability to influence executive-level stakeholders and collaborate across multiple domains while leading through uncertainty and changing priorities.
• Track record of setting engineering standards, driving continuous improvement, coaching engineers, and developing high-performing teams.
• Strong expertise in distributed data processing systems, cloud-native and distributed systems design, and batch, streaming, and event-driven architectures.
• Deep knowledge of data modelling, storage, access, processing patterns, and production-grade data platforms and pipelines.
• Strong programming skills in Python and SQL; hands-on experience with Spark, PySpark, or Scala.
• Experience with DBT for data modelling and transformation, plus Databricks, BigQuery, and Azure Data Factory.
• Strong knowledge of GCP, Azure, and AWS cloud platforms.
• Experience with DevOps and DataOps practices, including CI/CD, Git, Terraform, Docker, Kubernetes, data quality tools, and testing frameworks such as Great Expectations.
• Experience designing resilient, scalable, observable systems and optimising platforms for performance and cost efficiency.
• Excellent command of English, written and spoken.

Culture & Benefits

• Inclusive environment supporting experimentation, new ideas, continuous learning, and engineering excellence.
• Flexible and agile hybrid working with home-office and Kraków-office options.
• 29,000–39,000 PLN gross monthly salary on an employment contract, with an opportunity for an annual bonus.
• Private medical healthcare with dental care, life insurance, child insurance, sports card, and pension-related benefits.
• Language and accounting courses, LinkedIn Learning, study and certification co-financing, and a training and buddy programme.
• Public transport co-financing in Krakow, parking benefits, and a 30-minute lunch break included in the 8-hour working day.