Data Analyst

Vention; Warszawa; Hybrid; PLN 81,000 - 97,000; Full time

Benefits offered by this job

Private medical care

MyBenefit credits

Multisport membership

Glasses reimbursement

Referral bonuses

Job summary

Vention in Warsaw, Poland is hiring a Data Analyst to ensure data quality and reliability in our data warehouse. You will work on ETL profiling, tracing anomalies to their root cause, and documenting business rules to keep data consistent across our systems.

You’ll collaborate with data engineers and analysts using Python, SQL, and PostgreSQL in a hybrid full-time setup, supporting a data-driven culture at a global tech company.

Qualifications

• 2+ years of experience as a Data Analyst.
• Experience with Python and SQL.
• Experience working with data warehouses, ideally PostgreSQL.
• Understanding of ETL processes and data quality profiling.
• Strong analytical and problem-solving skills with attention to detail.
• B2 English level, both written and spoken.

Responsibilities

• Check data accuracy and consistency across the data warehouse.
• Work through ETL processes to profile data and identify quality issues.
• Trace anomalies back to root cause.
• Document the business rules that govern the data.
• Collaborate with data engineers and analysts to keep the data warehouse reliable and well understood.

Skills

Python

SQL

PostgreSQL

ETL

Data quality

Analytical thinking

English (B2)

Tools

PostgreSQL

GitHub Copilot

Job description

Salary: from 8 000 PLN gross Hybrid Full-time Warsaw, Poland (67 Prosta St, 00-838)

Vention is a global engineering partner to tech leaders and fast-growing startups, combining 20+ years of product development expertise with an AI-first approach and a reputation for reliable delivery.

With 150+ data engineers and over 20 years of experience, we help startups and enterprises turn data into smart decisions and better user experiences. Our teams work with Python, Java, Scala, and R to build scalable data pipelines and infrastructure that power real results.

What you’ll do

• Check data accuracy and consistency across our data warehouse (PostgreSQL)
• Work through ETL processes to profile data and identify quality issues
• Trace anomalies back to their root cause
• Document the business rules that govern the data
• Collaborate with data engineers and analysts to keep the data warehouse reliable and well understood

What you bring

• 2 years of experience as a Data Analyst
• Experience with Python and SQL
• Experience working with data warehouses, ideally PostgreSQL
• Understanding of ETL processes and data quality profiling
• Strong analytical and problem-solving skills, with attention to detail
• B2 English level, both written and spoken

What you’ll get

• EDU corporate community (300+ members): tech communities, interest clubs, events, a small R&D lab, a knowledge base, and a dedicated AI track
• Licenses for AI tools: GitHub Copilot, Cursor, and others
• Private medical care with LuxMed
• Kafeteria MyBenefit credits for stores, restaurants, and cafés
• Access to a Multisport membership to stay active
• Glasses reimbursement program
• Referral bonuses for bringing in new talent