Database Developer with Oracle/SQL Server Expertise
Resume:
Darin Holloway
**********@********.***
Summary
Results-driven database developer with years of experience in database design, reporting, and ETL development using Oracle and SQL Server. Skilled in Agile/Scrum environments with a track record of supporting high-availability systems for clients including the U.S. Army, Department of Environmental Quality (DEQ), U.S. Postal Service, Amerisure, and Montana State Fund.
Work Experience
Database Developer Sapiens, Montana, United States Jan 2022 – May 2025
Maintained enterprise PowerBuilder applications for Amerisure Insurance
Coded in Powerbuilder, tested, debugged production issues
Utilized Scrum and Kanban boards in an Agile environment
Modified Oracle 12c/19c PL/SQL, complex queries, sub-queries, procedures, functions, and views
Coordinated with QA teams to conduct unit testing, integration testing, and documentation
Used Jira issue tracking, requirements, and deployment requests and Git for version control
Software Developer Battelle, Idaho, United States Jan 2019 – Nov 2021
Responsible for installing, configuring, and maintaining applications for the Idaho National Lab nuclear facility
Deployed and configured Hitachi ABB Asset Suite, ERSuite and eSOMS applications
Engineered ETL processes to migrate data daily from Oracle to MS SQL Server
Created Azure DevOps CI/CD pipelines to automate the deployment and update of database systems
Developed and maintained complex packages, views, and triggers in SQL Server 2012/2016 (T-SQL) and Oracle 12c–21c (PL/SQL)
Used Jira Kanban boards for issue tracking, user stories, and Git for code versioning
Software Engineer II Montana State Fund, Montana, United States Nov 2010 – Nov 2018
Supported workers compensation insurance policy applications for Montana State Fund
Maintained PowerBuilder applications and deployments, integrated with VB6 and Filenet applications
Collaborated with end users to define business requirements, QA testing, and documentation
Developed Oracle 11g / 12c PL/SQL, packages, procedures, views, and triggers
Researched production issues, production recovery, and provided help desk support
Created a C# application for IBM Datacap to index documents and interface with FileNet
Worked with PL/SQL Developer, Serena Dimensions, Jenkins, and MS Visual Studio
Consultant Deloitte, Montana, United States Sep 2008 – Oct 2010
Performed data extraction and data conversion for the FDIC and MT Department of Justice
Developed data conversion for Montana Department of Justice license and registration system
Created test cases and supervised testing of DOJ registration and title system
Extracted financial data to be archived in an FDIC data warehouse
Worked with a wide variety of databases including Oracle, SQL Server, Access, PostgreSQL,
FoxPro, and MySQL
Systems Analyst BearingPoint, Montana, United States Aug 2004 – Sep 2008
Developed ETL solutions and built web applications for the Montana Department of Justice
Worked with SQL Server 2005/2008, including backups, recovery, and performance monitoring
Built web applications using ASP (VBScript), JavaScript, HTML, CSS, and Dreamweaver
Developed ETL processes using TSQL stored procedures and SQL Server Integration Services (SSIS)
Created test cases and conducted integration testing to ensure system reliability
Supervised a small team of QA testers, providing guidance and oversight throughout the testing process
Education
Bachelor of Computer Science, University of Idaho, United States
Certifications
AZ-900: Azure Fundamentals, January 2025
DP-900: Azure Data Fundamentals, April 2025
Technical Skills
Databases: Oracle (9i–21c), SQL Server (2000–2016), PL/SQL, T-SQL, MySQL, PostgreSQL
Languages: PowerBuilder(9,12,19), C#, Visual Basic (VB), PowerShell
Web: JavaScript, ColdFusion, HTML, CSS, XML, ASP
Tools: Visual Studio, Git, Jira, Jenkins, Azure DevOps, PL/SQL Developer, TOAD, SQL Server Management Studio (SSMS), SQL Server Integration Services (SSIS), SQL Server Reporting Services (SSRS)
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