Senior .NET​/Application Developer; On-Site

Excluded Locations

AK, CA, CO, CT, DC, HI, LA, MA, MN, MO, NE, NV, NH, NJ, NM, NY, ND, OR, PR, RI, VT, WA, WY

Join us as a Senior .NET/Application Developer supporting mission-critical systems at the Joint Pathology Center. In this high-impact role, you'll develop and modernize enterprise applications, integrate AI-enabled capabilities, and help ensure secure, reliable healthcare technology solutions.

Joint Pathology Center, 606 Stephen Sitter Ave, Silver Spring, MD 20910

The Senior .NET/Application Developer provides enterprise-level software engineering, application support, and Operations and Maintenance (O&M) services for Joint Pathology Center (JPC) software systems.

• Provides software engineering and technical support to ensure full operational capability of JPC application systems
• Maintains and supports LIS software and other mission-critical applications across all environments (e.g., development, testing, staging, and production)
• Monitors application health, logs, and performance metrics to identify errors, performance degradation, and anomalous or suspicious activity
• Implements corrective actions, patches, and defect resolutions to maintain system stability and performance
• Designs, develops, enhances, and sustains applications using industry best practices and approved development frameworks
• Implements future system enhancements based on evolving mission requirements and stakeholder input
• Provides objective evidence that software design outputs meet specified requirements at each phase of the Software Development Life Cycle (SDLC)
• Integrates machine learning models, analytics engines, or AI services into existing applications in accordance with Government-approved architectures
• Ensures AI components are transparent, auditable, and compliant with DoD cybersecurity, data governance, and ethical use guidelines
• Supports AI model lifecycle activities, including training data integration, testing, validation, deployment, and performance monitoring
• Collaborates with stakeholders to identify appropriate use cases for AI within LIS and other JPC systems
• Monitors and maintains system interfaces to ensure reliable data exchange and interoperability
• Supports database interactions and coordinates with database administrators to ensure data integrity and performance
• Tracks, manages, and documents all software Change Requests (CRs) using robust configuration management practices
• Plans, coordinates, and executes software releases, patches, and updates across environments
• Supports release validation and rollback procedures as required
• Embeds security controls within software applications to meet DoD cybersecurity requirements
• Conducts application security testing using approved tools and methodologies (e.g., OWASP, Fortify, static and dynamic code analysis
• Performs and supports verification and validation activities, including unit testing, functional testing, code inspections, walkthroughs, and static/dynamic analysis
• Ensures software meets functional, security, and performance requirements prior to deployment
• Documents test plans, results, and remediation actions
• Generates reports and status updates to communicate system changes, configuration updates, risks, and operational status to JPC stakeholders

The annual projected pay range for this position is $116,405 - $130,190 with consideration given to various factors including qualifications, experience, job responsibilities, and geographic location.

Benefits include:

• Medical, dental, vision and prescription drug coverage for you and your family.
• Life Insurance, short-term disability and long-term disability paid for by the Company.
• Supplemental coverages including Accident, Critical Illness, and Hospital.
• Additional Life insurance coverage for you and your dependents.
• 401k plan with various options to select based on your retirement goals.

All qualified applicants will receive consideration for employment without regard to any status protected by applicable federal, state, or local law.

• 5 years of application development experience

• Bachelor’s Degree in information technology, computer science, cybersecurity, engineering, or related field.
• Active certification meeting Cyber IT/Cybersecurity Workforce (CSWF)/Information Assurance Technician (IAT) Level II requirements (e.g., Security+ CE, CySA+, CND, GSEC, GICSP, SSCP) or a certification for DCWF 621 - Software Developer (e.g., CSSLP, CISSP, CISSP-ISSAP, CISSP-ISSEP, Security
  
  X/CASP+, SSCP).

• Excellent experience providing support for web-based and Windows-based applications developed using the Microsoft .NET stack (e.g., ASP.NET, C#, MVC, IIS).
• Excellent experience supporting a Laboratory Information System (LIS) and other Commercial-Off-The-Shelf (COTS) and Government-Off-The-Shelf (GOTS) software products.
• Excellent experience supporting development,…