.Net Developer

Location: Onsite at Portsmouth Naval Shipyard (Kittery, Maine). Employment Type: Full‑Time, 40 hours per week, US Citizens Only. Clearance Requirement: Secret Clearance.

Position Summary

Portsmouth Naval Shipyard (PNS) maintains an on‑premises SharePoint 2016 farm hosting several custom C# .NET solutions accessible as web parts. The .NET Developer will migrate existing ColdFusion applications into this environment, develop new C# .NET web parts and user controls, and ensure all solutions comply with Department of Defense cybersecurity requirements and Microsoft’s best practices for development.

Key Responsibilities

• Assess existing ColdFusion applications and develop a migration strategy into the SharePoint environment; migrate ColdFusion applications to C# .NET user controls (ASCX) and web parts using Visual Studio 2017 or newer.
• Design, develop, and maintain C# .NET database‑driven web applications running as user controls within SharePoint; implement timer jobs and custom workflows for both on‑premises and cloud‑based SharePoint solutions.
• Apply security fixes based on Fortify vulnerability scan results; ensure all solutions meet DoD cybersecurity requirements and adhere to Microsoft’s .NET and SharePoint development best practices.
• Serve as backup support for critical application troubleshooting and functional enhancements when primary support staff are unavailable; collaborate with software developers and SharePoint administrators to integrate services and develop custom plug‑ins.

Qualifications

• Minimum four years of web application and .NET development experience, including custom database‑driven web parts and timer jobs for SharePoint on‑premise and cloud environments.
• Proficiency in C# .NET Framework and ASCX user control development in Visual Studio 2017 or newer.
• At least one year of ColdFusion experience, with strong skills in HTML, JavaScript, jQuery, and XML.
• Hands‑on experience with Microsoft SQL Server and Oracle (TOAD) databases.
• Must possess one of the following certifications prior to onboarding: Certified Information Systems Security Professional (CISSP), CompTIA Advanced Security Practitioner (CASP), EC‑Council Network Security Administrator (ENSA), or CompTIA Security+ CE.
• Department of the Navy‑approved graduate degree from an accredited university.
• After onboarding, will receive a Cyber IT/Cybersecurity Workforce (CSWF) designation and must adhere to the Information Systems (IS) Privileged Access Agreement and Acknowledgement of Responsibilities.

Skills and Competencies

• Strong C# .NET programming and SharePoint web part development abilities.
• Knowledge of ColdFusion‑to‑.NET migration methodologies and best practices.
• Proficiency in SQL Server and Oracle database management and optimization.
• Familiarity with Fortify vulnerability scanning and implementing security remediations.
• Excellent problem‑solving, communication, and team collaboration skills.