Looking for a job

Natalia Balla

@nataliaballa

Message

I build reliable financial data pipelines across Oracle, PostgreSQL, and Python.

Poland

Message

What I'm looking for

I'm looking for remote roles across the EU or hybrid/on-site opportunities in Wrocław where I can build and support reliable data pipelines, database solutions, and automation for complex production environments.

I've built and supported financial data solutions for Santander CIB, UBS, and Credit Suisse, using Python, Oracle, PL/SQL, Azure SQL, and Databricks. My work spans ETL pipelines, high-volume market data, risk analytics, reporting, and production support.

I've reduced report generation time by about 40% and cut ETL runtime from hours to minutes through query optimization and parallelization. I also build practical Python projects, including a FastAPI budget-tracker API and a CSV-to-SQLite ETL workflow.

Experience

Work history, roles, and key accomplishments

Senior Data Engineer / Python Developer

Qaracter

Nov 2025 - May 2026 (6 months)

Built Python-based ETL pipelines for financial data integration across multiple Oracle environments. Developed and optimized SQL/PL/SQL on Oracle Exadata for high-volume market datasets.

Python ETL Oracle Pl SQL SQL Control M Unix Linux Root Cause Analysis

Software Engineer / Data Engineer

UBS

Nov 2024 - Aug 2025 (9 months)

Built ETL workflows loading enterprise data into Azure SQL and Databricks. Developed Python automation and ETL scripts that reduced manual processing.

ETL Azure SQL Databricks Python SQL Performance Optimization Production Monitoring

Database Programmer / Senior ETL Developer

Credit Suisse

Oct 2019 - Oct 2024 (5 years)

Developed and supported Informatica PowerCenter mappings, sessions, and workflows for daily and intraday processing. Built PL/SQL packages, procedures, and SQL scripts for Oracle-based risk analytics and reporting data flows.

Informatica PowerCenter Pl SQL SQL Oracle Data Quality Reconciliations Performance Optimization

Senior Oracle DBA / Aligned DBA

Luxo

Jul 2016 - Sep 2019 (3 years 2 months)

Supported high-availability Oracle databases for trading systems, including monitoring, performance tuning, and incident response. Built Liquibase and Python deployment workflows and automated repeatable database changes.

Oracle DBA Performance Optimization Liquibase Python Automation Incident Response

Database Administrator

SKB Kontur

Jul 2015 - Nov 2016 (1 year 4 months)

Maintained PostgreSQL clusters and tuned Oracle workloads in production environments. Managed patches and Oracle Data Guard and automated operational tasks with shell and SQL scripts.

PostgreSQL Oracle Dataguard Shell Scripting SQL Automation