Ann Dunbar
@anndunbar
Senior mainframe application developer delivering reliable enterprise banking software with 35+ years expertise.
United StatesWhat I'm looking for
I’m a Senior Mainframe Application Developer with more than 35 years of information technology experience delivering enterprise solutions for banking, financial services, and government organizations. About 20 years of hands-on COBOL/mainframe development and more than a decade of SQL, database, and Business Intelligence development shape how I modernize critical systems without breaking trust.
My core strength is solving complex production issues in highly regulated environments. I’ve built and maintained mission-critical COBOL batch and online applications using enterprise mainframe technologies like IDMS, DB2, CICS, and JCL, and I’m comfortable bridging legacy mainframe systems with modern SQL and analytics.
I’ve supported enterprise banking and government systems across nearly four decades, including financial platforms exceeding $23 billion in managed assets. At the World Bank Group (IFC), I completed more than 300 documented projects in one year, and I led Year 2000 remediation efforts for COBOL, ADS/O, and JCL applications.
In recent roles, I’ve developed SQL-based enterprise reporting and analytics solutions supporting mortgage servicing operations. I automate manual reporting, validate data quality, and partner with business, audit, and technology teams—bringing enterprise banking knowledge into SQL Server, Oracle, Tableau, and MicroStrategy to deliver dependable outcomes.
Experience
Work history, roles, and key accomplishments
Developed SQL-based enterprise reporting and analytics solutions for mortgage servicing operations, automating manual reports and validating data quality with SQL Server, Oracle, Tableau, and MicroStrategy. Partnered with business, audit, and technology teams to support mission-critical banking systems.
Database Developer and Reporting Analyst
Fannie Mae, Defense Contract Management Agency & Modis
Jan 2005 - Jan 2012 (7 years)
Designed Oracle and DB2 reporting solutions, creating complex SQL scripts to automate reporting, compliance metrics, and database analysis. Maintained DB2 financial databases, production reporting, and SOX-related operational processes with ongoing production support.
Senior Database Programmer
World Bank Group (IFC)
Jan 2000 - Jan 2004 (4 years)
Supported the ICAS-L $23B multi-currency loan accounting system by developing and enhancing COBOL, IDMS, ADS/O, CICS, and JCL applications. Delivered production support, month-end/year-end processing, and database recovery while automating reporting and completing 300+ documented projects in one year.
Database Administrator
Military Sealift Command
Jan 1998 - Jan 1999 (1 year)
Administered IDMS databases and led production migrations, building COBOL applications supporting electronic data interchange (EDI). Performed Y2K remediation across COBOL, ADS/O, and JCL applications.
Programmer Analyst
U.S. Treasury – Office of the Comptroller of the Currency
Jan 1987 - Jan 1997 (10 years)
Developed, tested, enhanced, and maintained enterprise COBOL and IDMS applications for banking regulatory systems. Provided requirements analysis, coding, debugging, production support, and customer consultation in mission-critical environments.
Programmer Intern
Freddie Mac
Jan 1987 - Present (39 years 5 months)
Converted SAS applications into IMS COBOL programs supporting mortgage processing and tested/debugged COBOL batch jobs.
Education
Degrees, certifications, and relevant coursework
Computer Learning Center
Associate of Applied Science, Computer Information Systems
Completed an A.A.S. in Computer Information Systems at the Computer Learning Center.
Tech stack
Software and tools used professionally
Availability
Location
United StatesAuthorized to work in
Job categories
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