Senior/Lead Data Engineer

Summary

Senior/Lead Data Engineer responsible for end-to-end data architecture, cloud-native pipeline development (primarily Azure stack), and mentoring engineers, working 2 days in-office in Warsaw.

Required Qualifications to be successful for both roles (Senior/Lead profiles):

  • Technical Skills:
    • Strong experience in end-to-end data architecture and design, including ingestion, modeling, storage, and orchestration (e.g., Medallion).
    • Proficiency in cloud-native engineering, with a focus on Microsoft technologies (Fabric, Azure Data Factory, Synapse) but open to other cloud platforms (AWS, Google Cloud) with comparable tools.
    • Hands-on experience with data warehousing and data lake solutions (e.g., BigQuery, Azure Data Lake, Delta Lake, Amazon Redshift).
    • Proficiency in programming languages such as Python (with data-related libraries: e.g., Pandas, Boto3), SQL, or Spark.
    • Strong knowledge of RDBMS (e.g., Oracle, MS SQL Server) or NoSQL databases (e.g., MongoDB, ElasticSearch, GBQ).
    • Experience with DevOps/DataOps practices, including CI/CD pipelines.
    • Ability to implement data validation, lineage, documentation, and monitoring at scale.
    • Proven ability to optimize pipelines and storage solutions for performance, cost, and reliability.
  • Soft Skills:
    • Ability to evaluate trade-offs and make clear, defensible technical choices.
    • Translate complex engineering decisions into clear, accurate explanations for non-technical stakeholders.
    • Uplift and mentor mid/junior engineers, enforce standards, and foster a collaborative technical culture.
    • Break down ambiguous, complex problems into clear, actionable steps and drive them to resolution.
    • Take responsibility for outcomes, anticipate issues, and drive long‑term platform evolution.
  • Experience:
    • Minimum 5 years of experience in data engineering, with a focus on cloud-native solutions and data architecture.
  • English proficiency should be at least B2 level.

We want to remind you that it is crucial to validate the following points before sharing any candidate:

  • Work model: 2 days per week in the office and 3 days at home.

See also

Data Engineering jobs by country — openings, pay and top skills →

Tailor your CV for this role?

We couldn't check your fit for this role — add a CV to your profile to see it next time.

A new version of freehire is available