Open to opportunities

Puru Kumar

@purukumar

Data Analyst with 2+ years of experience in data quality, validation, SQL/Python analytics, and ML clustering monitoring.

Germany

Message

What I'm looking for

I’m looking for a role where I can own data quality and validation, build reliable ETL/ELT pipelines and dashboards, and grow into AI model operations and decision intelligence systems with real business impact.

I’m a Data Analyst with 2+ years of hands-on experience in data preparation, model output validation, and analytical pipeline development. I’ve built and validated workflows that structure complex datasets for decision-making, including 5+ million operational and financial records using SQL and Python.

In my roles, I’ve implemented automated data quality checks, improving output accuracy by 20%, and designed dimensional data models in Snowflake across 15+ datasets and 60+ tables. I also monitored KPI/reporting outputs to surface anomalies and recommendations, while automating reporting workflows to reduce cycle times from 5 hours to 30 minutes—I’m eager to deepen my expertise in AI model operations and decision intelligence systems.

Experience

Work history, roles, and key accomplishments

Data Analyst (Working Student)

Uniper Energy

May 2025 - Mar 2026 (10 months)

Prepared, structured, and validated 5+ million operational and financial records to ensure data accuracy and completeness for downstream analytics. Designed dimensional models (15+ datasets, 60+ tables), implemented automated data quality checks (+20% output accuracy), and automated Power BI/Power Query reporting to cut cycles from 5 hours to 30 minutes.

SQL Python Snowflake Data Modeling Data Quality Power BI Apache Airflow DBT

Data Analyst Trainee

Gemini Solutions Private Limited

Sep 2022 - Aug 2023 (11 months)

Developed and scheduled ETL pipelines with Apache Airflow, SQL, and Python, orchestrating 20+ data workflows with ongoing monitoring for integrity and performance. Built Power BI dashboards for 15+ KPIs, optimized SQL across 40+ tables to reduce execution time by 25%, and applied data quality validation frameworks to improve consistency and stakeholder trust.

SQL Python Apache Airflow Power BI Data Quality ETL KPI Reporting Query Optimization Data Validation Trend Analysis

Data Analyst Intern

Siemens Technology and Services Private Limited

Jul 2022 - Aug 2022 (1 month)

Assisted in developing automated data pipelines using SQL, Python, and Apache Airflow, supporting data cleaning, preparation, and transformation. Improved usability of 10+ datasets for reporting and analysis and contributed to Power BI reports and automated reporting workflows to enhance data reliability.

SQL Python Apache Airflow Data Cleaning data transformation Power BI Excel Report Automation Data Preparation Data Quality

Education

Degrees, certifications, and relevant coursework

FOM University of Applied Sciences

Master of Science, Big Data and Business Analytics

2024 - 2026

Activities and societies: Master’s project (Feb 2026): Data-Driven Player Profiling—evaluating temporal stability and interpretability of football performance clusters; also performed football performance, risk & data quality analysis (Dec 2024).

M.Sc. in Big Data and Business Analytics. Completed coursework and a master’s project analyzing football performance datasets using Python.