Role Summary

Core sustainment and enhancement developer for a portfolio of public-facing and internal web applications running on ASP.NET / .NET 8 with an IBM DB2 back end, alongside Drupal-based websites. Delivers corrective, adaptive, and perfective maintenance in two-week sprints while contributing to the incremental modernization of the same portfolio.
Key Responsibilities
• Develop, debug, and maintain ASP.NET / .NET 8 Core MVC and Razor applications, Entity Framework data access, and Bootstrap-based responsive front ends.
• Write and optimize SQL and stored procedures against IBM DB2; support schema changes, performance tuning, and data integrity.
• Build and consume REST APIs integrating with enterprise case management, document management, and identity services.
• Implement and maintain single sign-on and federated identity integrations (e.g., Login.gov, SAML/OIDC, enterprise SSO).
• Remediate security findings from STIGs, SRRs, SCA scans, and vulnerability reports within required timelines.
• Ensure all delivered UI meets Section 508 / WCAG 2.1 AA and responsive/mobile requirements.
• Participate in CI/CD pipeline execution (GitLab), code review, unit testing, and controlled promotion through dev, staging, and production.
• Provide Tier 2/3 production support, root cause analysis, and post-release validation.
• Contribute to modernization: API enablement of legacy functions, data migration support, and decommissioning documentation.
• Support DOL release management by producing required unit-test, code-review, Section 508, mobile/browser, performance, security, release-note, and deployment evidence for each release.
• Maintain code, configuration, database scripts, and deployment artifacts in DOL-controlled Git repositories; support ServiceNow incident/change records for production changes and promotions.
• Coordinate integrations with Appian/WISE/PWRS, SharePoint, Login.gov, Kafka, and other DOL enterprise services as assigned.
Required Skills & Experience
• 5+ years professional web application development, including 3+ years with ASP.NET / C# / .NET Core (.NET 6/8 preferred).
• Hands-on experience with Entity Framework, MVC/Razor Pages, and Bootstrap or a comparable responsive framework.
• Strong relational database skills; direct experience with IBM DB2 strongly preferred, otherwise Oracle/SQL Server/PostgreSQL with willingness to cross-train.
• REST API design and integration experience; JSON payload handling and error/retry patterns.
• Front-end proficiency: HTML5, CSS3, JavaScript; familiarity with AngularJS or a modern SPA framework.
• Git-based source control and CI/CD pipeline experience (GitLab CI preferred).
• Demonstrated Section 508 / WCAG accessible development practice.
• Agile/Scrum delivery experience with sprint-based commitments.
• Working proficiency with AI-assisted development tooling (e.g., Microsoft Copilot and other DOL-approved secure AI tools) in a governed enterprise environment.
• Experience troubleshooting and remediating production issues under defined SLAs, including RCA, monitoring, secure configuration, and controlled change management.
• Ability to use only DOL-approved secure AI coding tools and to validate, review, test, and document machine-generated code before use.
Preferred Qualifications
• Drupal theming or module development exposure.
• AWS experience (EKS, S3, CloudFront, Secrets Manager).
• Experience supporting federal systems with formal ATO and configuration management requirements.
Education

Bachelor's degree in Computer Science, Engineering, or a related field; equivalent experience considered.