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# Software Developer I (Junior)

- **Company:** 3SI Security Systems
- **Location:** Ashburn, VA, United States
- **Experience:** Starter
- **Contract:** Permanent contract
- **Skills:** .NET Framework, JIRA, C Sharp (Programming Language), Software Debugging, Programming Tools, Microsoft Visual Studio, Windows Presentation Foundation, Secure Coding, Software Engineering, Software Organization, Telerik, Enterprise Software Applications, Git, Information Technology, Restful APIs, ServiceStack
- **Published:** May 31, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=ab73e04cbae9199e

## About the Role

Do you have experience in Visual Studio?, Do you have a Associate's degree?, * Understanding of full-stack development practices

 * Proficiency in C# and the .NET framework

 * Experience with Windows Presentation Foundation (WPF)

 * Knowledge of software development best practices and secure coding techniques

 * Ability to work with RESTful APIs and HTTP network technologies

 * Skilled in using Visual Studio, Git, and Jira

 * Strong problem-solving and analytical abilities

 * Effective communication and collaboration skills

 * Ability to work independently or within a team environment, * Bachelor's degree in Computer Science, Information Technology, Software Engineering, or a related technical field

 * Equivalent professional experience may be considered in lieu of formal education

 * Associate degree in a technical discipline combined with relevant experience and/or industry certifications may also be considered

 * 1 year of related software development experience

 * 1 year of hands-on experience in C#/.NET development

 * Experience with reusable C# library development and version-controlled environments

Additional Comments

 * Position on-site in Ashburn, VA.

 * Successful candidates must pass a comprehensive background investigation

## Description

Join us-and be part of something that matters. The Junior Software Developer is responsible for participating in technical development, testing, debugging, and implementation of enhancements to enterprise-level applications. The developer is expected to work collaboratively with senior developers and members of the team, contributing to the mission-critical success of our organization. Additionally, you may be tasked with writing Jira tickets, technical user guides, and supporting documentation.

Primary Responsibilities

 * Participate in full software development lifecycle activities, including design, development, testing, debugging, and implementation

 * Design and develop scalable software solutions using C# and .NET

 * Collaborate with other developers and cross-functional teams to ensure technical alignment with project goals

 * Utilize development tools such as Visual Studio, Git, Jira, and

 * Work with technologies including REST/ServiceStack, WPF, Progress/Telerik UI Toolkit

 * Support and maintain client and server utilizing REST and HTTPS protocols

 * Perform other duties as needed to support the company's mission and project requirements


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