Marathon TS is seeking an experienced Mod Oracle PL SQL/Web Developer to support our work with the DEA's Diversion Division.
Responsibilities
- Design, develop, and maintain web applications served through Oracle mod_plsql
- Write and optimize complex PL/SQL packages and SQL queries against large datasets
- Build interactive, AJAX-driven front-end interfaces backed by PL/SQL procedures
- Troubleshoot performance issues across the database, gateway, and browser layers
- Participate in code reviews, deployments, and production support
Required Technical Skills
Oracle mod_plsql / Web Toolkit
- Extensive experience building web applications using Oracle's mod_plsql gateway (PL/SQL Web Toolkit, OWA packages such as HTP, HTF, OWA_UTIL, OWA_COOKIE, WPG_DOCLOAD)
- Configuring and maintaining mod_plsql Database Access Descriptors (DADs) under Oracle HTTP Server (OHS) / Apache
- Generating dynamic HTML output directly from PL/SQL stored procedures
- Session and state management in stateless mod_plsql architectures
- Array parameter passing between pages
- URL parameter passing
- Proper understanding of the various locking strategies to maintain data integrity
- File upload/download functionality
PL/SQL
- Expert-level development of stored procedures, functions, packages, and triggers
- Cursors (explicit, implicit, ref cursors), bulk operations (BULK COLLECT, FORALL), collections, and dynamic SQL
- Exception handling, autonomous transactions, and performance tuning of PL/SQL code
- Building and maintaining reusable PL/SQL APIs and business logic layers
- Dynamic SQL
SQL
- Advanced query writing, complex joins, analytic/window functions, subqueries, and set operations
- Query optimization using execution plans, hints, indexing strategies, and partitioning
- Data modeling, normalization, and writing DDL/DML for Oracle databases (19c and above)
Front-End: HTML, CSS, JavaScript, AJAX
- Hand-coding semantic HTML and responsive CSS layouts
- JavaScript for client-side validation, DOM manipulation, and interactivity
- AJAX integration with mod_plsql endpoints for asynchronous, partial-page updates (XMLHttpRequest / Fetch, JSON or XML payloads returned from PL/SQL procedures)
- Cross-browser compatibility and debugging
Education/Experience:
- A BS/BA in Engineering, Physics, Computer Science, Information Technology, Mathematics or equivalent, and at least 5 years' experience in the field. Nine (9) years of related experience is equivalent to a BS/BA in Engineering, Physics, Computer Science,
- 4+ years of hands-on Oracle development, with significant time spent specifically on mod_PLSQL web applications
Preferred / Nice-to-Have
- Familiarity with Oracle HTTP Server / WebLogic configuration
- Experienced with tools like TOAD, SQL Developer, SQL Plus, VSS
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Marathon TS is committed to the development of a creative, diverse and inclusive work environment. In order to provide equal employment and advancement opportunities to all individuals, employment decisions at Marathon TS will be based on merit, qualifications, and abilities. Marathon TS does not discriminate against any person because of race, color, creed, religion, sex, national origin, disability, age or any other characteristic protected by law (referred to as "protected status ").