Jon O.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.

24 years in the IT field, specifically custom software design, development, and implementation for business. Database systems a primary strength - including MS SQL Server, MySQL, Oracle, DB2, PostGreSQL and a few other legacy products. ** Masters Degree in Computer Science with concentration in Database Management Systems (DBMS) and related concepts, including Analytical Data Mining algorithms (Thesis). I have a full understanding of the technical side of database operations such as query optimization, query execution plans, clustered and non-clustered indexing for performance and RAM caching. Hands on work includes optimizing and organizing large scale DB's with tables having millions of records. I worked as a consultant for software and database development since 1995 with a couple of different companies, and now I own my own business (since 2009). During my consulting years, I served as project lead/manager (as well as staff manager) with 3 years experience as a VP of Operations. I ran projects from both a conceptual and technical standpoint. Worked in many industries and developed the following enterprise level software applications: * Pediatric/Adult rehab application for large Hospital * Complete Membership Database for Travel Agency * Web site and related applications for Oil Company (first purchaser) * Time & Attendance System (TAS) for Coal/Mine Industry * Purchasing and Inventory System (with Receiving) - I have many years of hands-on experience with Data Conversions and Migrations, including countless data imports/exports across many different platforms. - I have experience with Web Services to interconnect systems (across various platforms). Web Service experience includes XML/SOAP and JSON REST API formats. 20 years knowledge of IBM AS400 I-Series (and DB2) platform. Development (RPG) and database tuning, plus interfaces to other software and platforms.