Ivan S.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 5, 2026.

Data-focused engineer with 8+ years of experience designing and operating high-throughput, distributed systems, transitioning from blockchain engineering into data engineering and analytics platforms. Solid background in Python, SQL, system architecture, ETL-style workflows, data integrity, and production reliability, combined with hands-on project leadership. Expanding expertise in modern data stacks, AI-assisted development, and analytics automation.