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Data Engineer

EnergyHub
Kraków, Poland
TEMPORARY
Posted November 3, 2025
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Job Description

The Senior Data Engineer at EnergyHub will design, develop, and maintain large-scale data processing systems to support virtual power plant operations, collaborating with cross-functional teams to manage billions of data points and optimize energy management solutions.

Key Responsibilities

  • Design and manage data ingestion, processing, and storage processes for billions of data points with a focus on performance, security, and compliance
  • Manage access, roles, and security for Snowflake data platform
  • Architect data schemas and data flow collaboratively across teams
  • Collaborate with cross-functional teams to balance business priorities and technical reliability
  • Monitor and optimize cloud costs associated with data tools and infrastructure
  • Mentor and train team members and other stakeholders in data engineering best practices
  • Build and maintain scalable, high-performance data systems and pipelines
  • Ensure data quality, observability, and troubleshooting capabilities for data processes
  • Develop and implement strategies for data lifecycle management and security

Requirements

  • Proven proficiency with AWS, Snowflake, dbt, Airflow, Docker, Fivetran, Hightouch, Sigma, Jira, Confluence, Slack, or comparable counterparts, at least
  • A storied career in data engineering, with experience in scaling systems many times over and handling unexpected data scenarios
  • Experience designing processes for ingesting, processing, observing, and maintaining billions of data points with performance, accuracy, security, and compliance in mind
  • Ability to manage access, roles, and security for Snowflake instances
  • Experience architecting schema and data flow through a collaborative and inclusive process
  • Ability to collaborate with team and product to balance business-driven and team-driven priorities to maximize velocity and reliability
  • Experience monitoring cloud costs across the toolset to maintain efficiency and justify expenses
  • Mentoring and training team members and other business units
  • Building and maintaining relationships with diverse partner teams, including engineering, operations, and business development
  • A proven track record in data engineering, including solidly-architected systems and thorough analyses
  • Obsessive drive for quality and performance in all work
  • Excellent communication skills, including clarity in code, documentation, and verbal explanations
  • Warmth and inclusiveness in collaboration, with a desire to help colleagues succeed
  • Understanding of the difference between OLAP and OLTP RDBMS systems, with experience planning and implementing high-performance data processes using both
  • Proactive approach to observability, ensuring relevant details are logged for rapid troubleshooting
  • Proficiency in SQL and Python, with the ability to clarify and simplify complex syntax
  • Ability to bring clarity and sanity to syntactic complexity in code and documentation
  • Ability to work in a team environment with a collaborative attitude
  • Physical and mental capacity to work in an office environment, with occasional remote work flexibility
  • Long-term employment commitment based on a permanent employment contract

Benefits & Perks

Long-term employment based on a permanent employment contract
Attractive benefits package including medical care, life insurance, sports package, annual budget for professional development 2,000
Work fully from the office with the possibility to work remotely occasionally
Opportunity to work with the latest technologies in IoT, SaaS, and machine learning
Make an immediate impact with real responsibilities from day one
Gain well-rounded experience across multiple areas of the business
Collaborate with outstanding people and learn from each other

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