Jakub Lasak

CEO

Warsaw, Mazowieckie, Poland1 yr 6 mos experience

Most Likely To Switch

Key Highlights

Expert in Databricks and Data Engineering.
Led major database migrations for multiple teams.
Created impactful BI dashboards for decision-making.

Stackforce AI infers this person is a Data Engineering expert in SaaS environments.

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Skills

Core Skills

DatabricksData EngineeringBusiness Intelligence (bi)

Other Skills

PySparkPythonSQL ServerAPIMicroStrategy APIFacebook APIGoogle APIMicroStrategyMicrosoft Power BIMicrosoft AzureGitHubAirflowTransact-SQL (T-SQL)Microsoft SQL ServerAzure Data Factory

About

Databricks Data Engineer (ex-Uber, 5+ years) helping you advance to senior level. 𝗛𝗼𝘄 𝗜 𝗛𝗲𝗹𝗽: I help Databricks data engineers become seniors: interview like seniors, execute like seniors, and think like seniors. 𝗪𝗵𝗮𝘁 𝗬𝗼𝘂'𝗹𝗹 𝗙𝗶𝗻𝗱: • Monday: Senior interview prep & strategies • Wednesday: Production-grade technical solutions • Friday: Career insights & community validation 𝗕𝗮𝗰𝗸𝗴𝗿𝗼𝘂𝗻𝗱: Technical Skills: • Languages: Python, PySpark, SQL (Advanced) • ETL Tools: Azure Data Factory, Microsoft Fabric • Databases/Data Lakes: Databricks, MS SQL Server • BI Tools: PowerBI, MicroStrategy • CI/CD: Azure DevOps, Github Certifications: • Databricks Certified Data Engineer Associate • Microsoft Certified: Azure Data Fundamentals I'm not affiliated or endorsed by Databricks, Inc. → DataEngineer.wiki for curated resources mapped to senior-level expectations

Experience

Dataengineer.wiki

Databricks Data Engineer Content Creator

May 2025 – Present · 10 mos

Jakub lasak consulting

Databricks Data Engineer

Sep 2024 – Present · 1 yr 6 mos · Warsaw · Remote

Databricks Data Engineer on B2B contracts for major companies.

DatabricksPySparkData Engineering

Microstrategy

Senior BI Consultant and Data Engineer

Aug 2021 – Aug 2024 · 3 yrs · Warsaw, Mazowieckie, Poland · Remote

Database Migration: Led Sybase-to-Databricks migration for 20+ teams (6 months)
Data Engineering: Developed many ETL solutions (Databricks, API, SQL Server, MicroStrategy API, Facebook API, Google API, etc)
Databricks Administration: Managed Unity Catalog and Delta Lake optimization
BI Developer: Created tens of dashboards to support business decisions

DatabricksPythonData EngineeringBusiness Intelligence (BI)

Uber eats (nyse:uber)

Data Analyst

Nov 2020 – Jul 2021 · 8 mos · Warsaw, Mazowieckie, Poland

Data Engineering: Built Python pipeline delivering market intelligence across multiple markets
Data Quality: Identified critical SQL error inflating key KPI by 400%
Automation: Created reporting tool reducing weekly manual workload
Analytics: Analyzed performance data across 9 cities for growth management

PythonBusiness Intelligence (BI)Data Engineering