// Data Engineer
Balazs Arva
Building reliable pipelines and cloud data warehouses – with a growing pull toward full-stack engineering.
About
I am a dedicated data engineer currently seeking a data engineer role. The last couple of years have strengthened my discipline, adaptability, and problem-solving skills, while I remained excited about building reliable data systems through real-world projects and collaboration.
Skills
- Git/GitHub
- PostgreSQL
- Python
- REST API
- Webhook
- React
- DWH/DM
- ETL/ELT
- Power BI/DAX
- AWS/Azure
- AI Integration
- CI/CD
Experience
- 2025 – 2026
EPAM Academy – Data Engineering Training
Focused on PostgreSQL (DDL/DML/DCL/TCL) and advanced warehouse design, building a DWH project on the Inmon approach (3NF core + data marts). Covered indexing, VACUUM, MVCC, isolation levels, and stored procedures.
Hands-on with AWS: EC2, S3, Glue/Glue Catalog, Athena, Aurora, Redshift, and Bastion Host access. Automated ETL/ELT pipelines and built reporting in Power BI, with Python for scripting and data processing.
Version-controlled all work with Git, and used CI/CD pipelines (Jenkins) alongside Databricks for pipeline orchestration and testing.
- 2023 – 2025
Full-time Student
Studied Python development, software engineering, and data science full-time, while working as a courier – building time management, reliability, and problem-solving skills alongside it.
- 2019 – 2023
Self-employed
Developed strong organizational skills, resilience, and the ability to adapt quickly to changing situations.
- 2014 – 2017
Sales Manager – CNW Rendszerintegrációs Zrt.
Managed IT hardware and software sales for existing partners, building client relationships and negotiating contracts.