Data Analyst

SNI; Wrocław; On-site; PLN 180,000 - 240,000; Full time

Job summary

SNI is seeking a senior BI professional in Wrocław to design, build, and optimize Power BI dashboards and data models. You will transform complex datasets into real-time insights for executive leadership and collaborate with cross-functional teams to ensure data integrity and scalable reporting.

Ideal candidates bring 4+ years in BI, deep Power BI and SQL expertise, and fluency in English. This role emphasizes delivering actionable analytics that align with enterprise objectives.

Qualifications

• Minimum 4 years of hands-on BI, data analytics, or data modeling experience.
• Strong Power BI mastery including dimensional modeling and DAX measures.
• Proficiency in writing high-performance SQL queries and optimizing data flows.
• Ability to translate data insights into clear, executive-ready narratives.
• Fluency in English (written and spoken).

Responsibilities

• Collaborate with leaders to analyze workflows and drive data-driven improvements.
• Architect and maintain production-grade Power BI dashboards and reports.
• Query, extract, sanitize, and transform large datasets for analytics models.
• Translate quantitative findings into narrative presentations for senior leadership.
• Audit and optimize SQL queries, Power BI data models, and DAX calculations for speed.
• Partner with data engineers and stakeholders to ensure data integrity.

Skills

Power BI expertise

SQL proficiency

Data modeling

Business analysis

Executive communication

Tools

Power BI

SQL

DAX

Power Query M

Job description

SNI is serving as a trusted IT Outsourcing partner in line with the needs of World's most prestigious firms and carried out successful projects worldwide.

Responsibilities:

• Collaborate closely with department leaders to analyze operational workflows, identify systemic inefficiencies, and implement data-driven process improvements.
• Architect, build, and maintain dynamic, production-grade Power BI dashboards and interactive reports delivering real-time performance tracking.
• Query, extract, sanitize, and transform massive, disparate datasets using advanced SQL to prepare optimized data structures for downstream analytical models.
• Translate complex quantitative findings into clear narrative presentations, visual summaries, and actionable recommendations for senior leadership.
• Continuously audit and optimize SQL queries, Power BI data models, Power Query M logic, and DAX calculations to ensure minimal latency, high scalability, and swift load times.
• Partner with data engineers, product owners, and business stakeholders to enforce data integrity, maintain unified metrics, and align reporting with enterprise objectives.

Skills:

• Minimum 4 years of proven hands-on experience in business intelligence, corporate data analytics, or data modeling delivering high-impact solutions.
• Deep technical mastery of the Power BI ecosystem, including star-schema dimensional modeling, row-level security (RLS), complex DAX measures, and report lifecycle management.
• Demonstrated expertise in writing high-performance SQL queries, window functions, CTEs, and stored procedures across large enterprise data warehouses.
• Strong background in analyzing end-to-end business operations, identifying KPI trends, and converting ambiguous business problems into structured analytical models.
• Exceptional capability to articulate technical concepts and nuanced data insights to non-technical executive stakeholders.
• Full professional fluency in English (written and verbal).

Nice to have:

• Certifications (e.g., PL-300: Microsoft Power BI Data Analyst).
• Experience with cloud data warehouse platforms (e.g., Snowflake, Azure Synapse, BigQuery, Databricks).
• Familiarity with version control (Git), CI/CD pipelines for Power BI deployment pipelines, or Fabric environments.
• Knowledge of scripting languages for data automation (e.g., Python, R).

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