Sergey D.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 7, 2026.

I’m a Data Engineer with a strong background in modern data stack development, analytics engineering, and AI-powered automation. Over the past 5+ years, I’ve built scalable ETL/ELT pipelines, data warehouses, and analytics systems for Finance, Retail, SaaS, and Product teams - working with everything from raw event streams to executive-level BI reporting. Core expertise: • Snowflake, BigQuery, PostgreSQL • dbt, Airflow, Fivetran • Python, SQL, API integrations • Data modeling & warehouse architecture • ETL/ELT pipeline development • AI workflows & automation • Tableau, Power BI, Looker, DOMO But at this point I think I worked with nearly everything Highlights: ✔ Built pipelines processing millions of rows daily ✔ Reduced manual reporting work by 20+ hours/week through automation ✔ Designed scalable analytics layers for 5000+ dashboard users ✔ Experience across both engineering and business-facing analytics I focus on building reliable, maintainable systems that turn messy data into clean, trusted infrastructure teams can actually use. Let’s build things your team actually wants to use!