Senior R&D Software Developer Jobs in Frederick, MD

About Chartis Federal

Chartis Federal is a premier systems engineering and integration firm specializing in mission-critical IT and communications solutions for law enforcement, homeland security, and defense. As a trusted prime contractor with over $160 million in task order awards, we operate across 22 states and support essential government missions worldwide.

Our commitment to excellence has fueled our year-over-year growth, earning us recognition twice as a Washington Technology FAST 50 company and securing a place on the Inc. 5000 list for five consecutive years. At Chartis Federal, our mission is clear: keeping heroes safe and connected—on the battlefield, on the border, and in our backyards.

Position Overview

We are hiring a Junior Software Developer / Associate .NET Application Developer to support an Agile team developing, enhancing, and maintaining an agency-wide automated Revenue Management System (RMS). This position will be remote with travel to customer meetings as needed in either Washington, D.C. or Alexandria, Virginia.

The Junior Software Developer will assist with C#/.NET development, testing, documentation, defect resolution, and deployment support activities under the guidance of senior developers, architects, and project leads.

This role is ideal for a recent graduate or early-career developer looking to grow within a structured federal Agile environment while gaining hands-on experience supporting mission-driven enterprise systems. Chartis Federal offers valuable mentorship opportunities, exposure to large-scale applications, and a collaborative team environment focused on professional development, continuous learning, and education assistance reimbursement programs to help employees build and advance their technical careers.

Responsibilities

• Participate in Agile ceremonies, including sprint planning, backlog refinement, daily scrums, sprint reviews, and retrospectives.
• Assist with documenting, clarifying, and translating assigned requirements into user stories, development tasks, or technical notes.
• Develop, modify, and test assigned C#/.NET application features, bug fixes, configuration changes, and enhancements under senior developer guidance.
• Use established source control, branching, code review, and issue-tracking processes.
• Follow established DevSecOps/SecDevOps practices, including secure coding standards, code review, automated testing, defect tracking, and configuration management.
• Assist with unit testing, integration testing, defect resolution, and documentation of test results.
• Help maintain requirements backlogs, development tasks, issues, and defects in the team’s Agile management tool.
• Prepare and update technical documentation, release notes, user support materials, and basic system documentation using approved templates and senior team input.
• Support preparation of user training materials, including screenshots, step-by-step instructions, basic application walkthroughs, and quick-reference content.
• Collaborate with developers, testers, business analysts, project managers, and government stakeholders in a professional team environment.
• Escalate technical issues, blockers, defects, and risks to senior team members in a timely manner.

• Must have or be able to obtain a Public Trust suitability determination.
• 0–2 years of software development experience, including internship, academic, bootcamp, project-based, military, or professional experience.
• Basic experience with C# and .NET or demonstrated ability to develop applications using an object-oriented programming language.
• Familiarity with Agile software development concepts, such as user stories, sprints, backlog items, sprint reviews, and retrospectives.
• Basic understanding of Git or a similar source control tool.
• Ability to write clear technical notes, user instructions, and development documentation.
• Strong analytical, troubleshooting, communication, and collaboration skills.
• Willingness to learn, receive feedback, follow established development standards, and work under senior technical direction.

Preferred Qualifications

• Exposure to C#, ASP.NET Core, .NET Core, SQL Server or PostgreSQL , REST APIs, JavaScript, HTML/CSS, Entity Framework Core and cloud-based development environments (AWS or Azure) .
• Experience using Jira, Azure DevOps, GitHub, GitLab, or similar Agile/project collaboration tools.
• Exposure to software testing practices, including unit testing, integration testing, regression testing, or defect tracking.
• Prior internship, federal project exposure, public-sector experience, or experience working in a structured software team.
• Interest in secure software development, DevSecOps/SecDevOps, accessibility, data quality, reporting, or business intelligence capabilities.

Why Join Chartis Federal?

At Chartis Federal, you’ll have the opportunity to make a meaningful impact while growing your career alongside a team of driven and collaborative professionals. We are committed to investing in our employees by offering competitive compensations, strong benefits, and opportunities for continuous professional growth.

Our benefits package includes:

• Comprehensive health coverage including medical, dental, and vision insurance
• Retirement savings plans with company contributions to help support your future
• Ongoing professional development, training, and career advancement opportunities reimbursed by the company
• A collaborative and mission-driven culture where innovation, teamwork, and employee contributions are genuinely valued
• The opportunity to work on impactful projects supporting critical national missions

Join us in shaping the future of government contracting and national security solutions.

Chartis Federal is an Equal Opportunity Employer and employs qualified individuals regardless of race, religion, color, sex, national origin, age, disability, or any other classification proscribed under applicable law. We participate in E-Verify.