Mark 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 Engineer and SQL Developer with 20+ years turning business questions into reliable data, reporting, and automation, for Fortune 100 companies (Verizon) and academic institutions (Rutgers University). WHAT I BRING - SQL: 20+ years across Oracle (SQL and PL/SQL), SQL Server, PostgreSQL, and Teradata - Python: 6+ years solving ETL, data ingestion, integration, and data integrity problems - Dashboards and reporting: Tableau, Power BI, Excel, and Crystal Reports - Automation: Power Automate, Smartsheet, and REST API integrations (3+ years) - Data warehousing and data modeling for enterprise reporting - Agile/Scrum delivery - Instructor of Object-Oriented Programming with Python at Rutgers University School of Communication and Information DOMAIN EXPERIENCE Customer care and call center KPIs · HR analytics · Finance reporting · Healthcare and higher-ed data (HIPAA/FERPA-aware) · Trending and executive KPI reporting WHAT CLIENTS SAY "Mark delivers... Not only with the quality of his work (Teradata, SQL Server, Tableau and other data visualization efforts), but with his understanding of the business needs and requirements. He always added the why, how and variables in the product he delivers back to the business." - Jim Boxwell, Marketing, Synchronoss Technologies WHY CHOOSE ME My mission is to deliver actionable insights. - You come first. If I miss your expectations, I'll make it right. - I'm a seasoned business professional. Twenty years in corporate environments taught me how to communicate, set expectations, and deliver. - I learn your business, not just your data. Good results need both domain knowledge and technical skill. - I'm friendly, eager to work, and here to help you succeed. Send me your data problem and what the finished report or workflow should look like, and I'll reply with a clear approach.