SOFTWARE DEVELOPER (.NET/C#)

About the role

VSolvit is seeking a Software Developer to join our team supporting the development, modernization, and sustainment of mission-critical analysis applications for the U.S. Navy. The selected candidate will work within a collaborative Agile SAFe environment, contributing to the design, development, testing, and maintenance of desktop software applications. This position is ideal for software developers with experience in C#, .NET, and desktop application development who enjoy solving complex technical challenges and working in a team-oriented environment. The successful candidate will contribute to both new feature development and the modernization of legacy systems while supporting critical mission requirements. We are seeking candidates ranging from mid-level to senior-level experience who demonstrate strong technical aptitude, sound engineering principles, and the ability to work effectively both independently and within a collaborative team environment.

Responsibilities

• Collaborate within an Agile Scrum team to design, develop, test, and maintain desktop analysis applications.
• Develop and maintain software solutions using C#, .NET, and related technologies.
• Support and modernize legacy software systems, including applications developed in Delphi.
• Develop desktop user interfaces and application functionality using modern software engineering practices.
• Apply object-oriented programming principles, multi-threading, concurrency, and task-based asynchronous programming (TPL).
• Troubleshoot, debug, and resolve software defects and performance issues.
• Participate in software design discussions, code reviews, and technical planning activities.
• Develop and maintain technical documentation as required.
• Participate in sprint planning, daily standups, retrospectives, and other Agile ceremonies.
• Collaborate with software engineers, systems engineers, testers, and government stakeholders to deliver mission-focused solutions.

Required Skills and Qualifications

• 3–10+ years of professional software development experience
• Strong proficiency in C# and .NET with a focus on desktop application development
• Experience developing, maintaining, and enhancing desktop applications
• Strong understanding of object-oriented programming principles and software design patterns
• Experience with multi-threading, concurrency, and task-based asynchronous programming (TPL)
• Experience troubleshooting and resolving software defects in complex software systems
• Working knowledge of Git source control and common development workflows
• Strong written and verbal communication skills
• Ability to work effectively in a collaborative team environment
• U.S. Citizenship required
• Ability to obtain and maintain a U.S. Government Security Clearance

Preferred Skills and Qualifications

• Experience with Unity development
• Experience with Agile methodologies, particularly Scrum and SAFe
• Experience using Atlassian tools such as Jira and Confluence
• Experience developing desktop applications within government, defense, or regulated environments
• Experience modernizing and maintaining legacy software systems
• Familiarity with Delphi applications and codebases
• Experience with Avalonia UI or other XAML-based desktop application frameworks (WPF, WinUI, MAUI) is highly desirable
• Active Secret or Top Secret Security Clearance is a plus
• CompTIA Security+ Certification is a plus

Education and Certifications

• Bachelor's degree in Computer Science, Software Engineering, Computer Engineering, or a related technical discipline, or equivalent experience.
• Relevant technical certifications are a plus.
• Ability to obtain required DoD Cyber Workforce certifications as required by the program.