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mark_shloss

Mark Shloss

@mark_shloss

Data Engineer ETL Developer

Kazakhstan
Russian, English
About me
I am a Data Engineer specializing in ETL process development and data processing automation using Python. I have experience designing internal data processing systems, building pipelines, and automating reporting to significantly reduce manual work. I am proficient in Python, SQL, and PostgreSQL, with a focus on building scalable data processing workflows.... Read more

Skills

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mark_shloss
Mark Shloss
Offline • 
Average response time: 1 hour

See my services

Data Engineering
I will build a python etl pipeline for data reconciliation and automation
From$50 / projectMore details

Portfolio

Work experience

Financial Controller (Python Data Automation Engeneer)

Air Astana • Full-time

Jun 2026 - Present • 4 mos

• Data preprocessing, cleaning, and preparation for further analysis. • Extracted data from databases, data warehouses, data marts, and other sources. • Gathered, analyzed, and developed requirements for database systems and data warehouses. • Implemented and configured automated systems, services, and tools to optimize financial management processes. • Developed and implemented 6+ internal automation systems and ETL processes for the finance department. • Designed Python-based data pipelines integrating multiple internal sources and generating final reports. • Automated reconciliation, aggregation, and analysis processes, cutting operation time from several business days to 15–30 minutes. • Built solutions for data quality checks, exception handling, logging, and automated Excel reporting. • Analyzed existing business processes, identified automation opportunities, and implemented solutions that significantly reduced manual work.