Software Developer (.Net/C#)

Full-Visbility; Quantico (VA); Hybrid; USD 140,000 - 190,000; Full time

Job summary

Full Visibility LLC is seeking a Software Developer (.NET/C#) to design, develop, and support Windows-based applications in a hybrid role for a federal customer in Quantico, VA. Candidate must possess an active Top Secret/SCI clearance and maintain CI polygraph eligibility.

The role involves collaborating with cross-functional teams to implement modern design patterns, ensure data integrity, and integrate with backend systems in production environments.

Qualifications

• Bachelor’s degree in CS/SE/IT or 6+ years of equivalent experience.
• 2+ years of experience building Windows apps with C# and .NET Framework 4.0+
• Experience with Visual Studio 2012+ and distributed VCS (Git/Mercurial)

Responsibilities

• Design, develop, and support Windows-based applications using .NET/C# in a hybrid Quantico environment.
• Collaborate with cross-functional engineering teams to develop scalable, maintainable solutions.
• Integrate applications with backend systems and ensure efficient data management.
• Follow modern design patterns and contribute to collaborative code management workflows.

Skills

C# / .NET

Visual Studio

Git / Mercurial

MVVM pattern

Relational databases

OO programming

Cross-functional teamwork

Education

Bachelor’s degree in CS/SE/IT

Tools

Visual Studio 2012+

Git

Mercurial

Job description

Quantico, United States | Posted on 07/31/2026

Full Visibility LLC is a federally certified Small Business that delivers innovative technical solutions to address the nation’s most critical and sensitive missions. Founded in 2006, our extensive technical capabilities and expertise support federal and state government agencies with over 100 cleared technical experts specializing in mission solution areas of Digital, AI & Analytics, Cyber, and Engineering.

With offices in the National Capital Region, Quantico, VA, and Huntsville, AL -- we deliver critical technical solutions to various federal government agencies and departments.

Job Description

Full Visibilityisseeking aSoftware Developer (.Net/C#)to work inQuantico, VAto support ourFederalcustomer in aHybrid Role. Candidate must possessan active Top Secret/SCI Eligibility C learance. Individuals selected for this position will be subject to Counterintelligence (CI) Polygraph examinations based on their assignment after their start date and must be able to obtain andmaintainany required CI Polygraph eligibility throughout the duration of their employment.

The Software Engineer (.Net/C#) will design, develop, and support Windows-based applications using modern .NET and C# technologies while contributing to software projects supporting large production environments. The ideal candidate will collaborate with cross-functional engineering teams to develop scalable, maintainable solutions, integrate applications with backend systems, and ensure efficient data management. Experience working within structured software development environments, implementing modern design patterns, and contributing to collaborative code management workflows is essential.

Requirements

• Bachelor’s degree in Computer Science ,Software Engineering, Information Technology, or a related technical field (or 6+ years of equivalent experience).
  
• 2+ years of experience developing Windows applications using C# and .NET Framework 4.0 or later.
  
• Experience supporting software development projects in production environments.
  
• Proficiencywith Visual Studio 2012 or later.
  
• Experience using distributed version control systems, including Git and Mercurial.
  
• Familiarity with package management and repository-based development workflows.
  
• Experience collaborating with cross-functional engineering teams to design, develop, and integrate software solutions.
  
• Ability to develop applications that efficiently read from and write to relational databases.
  
• Experience integrating internal and external software components into enterprise applications.
  
• Knowledge of object-oriented programming principles, application architecture, and software design best practices.
  
• Experience implementing the MVVM design pattern or similar architectural patterns in production environments.
  
• Strong analytical, troubleshooting, and problem-solving skills.
  
• Excellent written and verbal communication skills with the ability to work effectively in a collaborative development environment.
  

This range is based on our market pay structures. However, individual salaries aredeterminedby a variety of factors including, but not limited to: local market conditions, and candidate qualifications, such as skills, education, and experience. A reasonable salary range for this position is $ 140-190 k . #CJ

About Full Visibility

Full Visibility LLC is a federally certified Small Business that delivers innovative technical solutions to address the nation’s most critical and sensitive missions. Founded in 2006, our extensive technical capabilities andexpertisesupport federal and state government agencies with over 100 cleared technical experts specializing in mission solution areas of Digital, AI & Analytics, Cyber, and Engineering.

Our technologists are recognized as industry leaders withdemonstratedexpertisein innovating and transforming our client environments in support of national security and law enforcement. Headquartered in Tysons, VA – with locations in Chantilly, VA, Quantico, VA, and Huntsville, AL – we have specialized experience supporting sensitive missions and an understanding of the niche skillsets required to overcome challenges in these environments. Our clientsbenefitfrom an enthusiastic and reliable team of talent with high employee morale and retention based on our FULL EMPLOYEE approach where each employee’s professional and personal well-being is considered. Our focus on employee development, success, and morale isdemonstratedby our consecutive top ranking as the Best Place to Work by the Washington Business Journal as a thirteen-time honoree. Full Visibility has also been included on the Inc. 5000 Fastest-Growing Private Companies in America list eight times since 2014.

Full Visibility currently has over 20 active contracts with 100 billable staff supporting 21 clients in the Intelligence and Law Enforcement communities. As part of our commitment to partnerships, we are teammates with 13 prime contract holders. Additionally, Full Visibility holds contracts on several vehicles, such as GSA Multiple Award Schedule (MAS), DISA SETI, DIA SITE III, HCaTS , as well as several classified vehicles. Our portfolio includes experience serving the Department of Defense, Department of Homeland Security, Department of Justice, and Department of Veterans Affairs, as well as commercial clients.

Full Visibility LLC is an Equal Opportunity Employer and does not discriminate on the basis of race or ethnicity, religion, sex, national origin, age, veteran status, disability or genetic information or any other reason prohibited by law in employment.