.NET / C# Developer
Charles F Day & Associates LLCRole Overview
Charles F Day & Associates LLC is hiring a senior-level .NET / C# Developer. This is a contract role in Arlington. Full responsibilities, required qualifications, and the apply link are listed in the description below.
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Job Description
CONTINGENT UPON CONTRACT AWARD
Location: Fort Belvoir, VA
Minimum Qualifications:
- 8 years of experience in .NET development including:
- MS .NET
- C#
- MVC 4+
- Internet Information Services (IIS) for Windows Server web development
- 5 years of experience with Software Development Life Cycle (SDLC) processes
- 5 years of experience with development testing, including:
- Unit Testing
- System Testing
- Functional Testing
- User Acceptance Testing
- 5 years of experience in SQL database development including stored procedures
- 5 years of experience mentoring junior personnel on best practices and procedures
- 5 years of experience documenting software defects using a bug tracking system and reporting defects to developers and project managers
Certifications / Clearance:
- TS/SCI clearance with SBI
- Ability to attain SI, TK, G, HCS, and NATO Secret clearances
- DoD 8140.03 IAT Level II / Intermediate certification
Equal Employment Opportunity Statement
CFDay is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, protected veteran status, or any other characteristic protected by law.
HUBZone Preference
As a HUBZone-certified company, CFDay encourages applications from HUBZone residents. HUBZone candidates are strongly preferred in accordance with program requirements.
Frequently Asked Questions
How do I apply for the .NET / C# Developer position at Charles F Day & Associates LLC?
Use the Apply button above to submit your application directly to Charles F Day & Associates LLC. Most applications take less than 5 minutes if your resume and contact details are ready, and you'll be routed to the employer's official application system to finish.
Where is the .NET / C# Developer position at Charles F Day & Associates LLC located?
This position is based in Arlington. Charles F Day & Associates LLC has not indicated remote or hybrid options for this role, so candidates should plan for on-site work.
What does a .NET / C# Developer at Charles F Day & Associates LLC earn?
Charles F Day & Associates LLC has not disclosed a salary range in this posting. Many employers share specifics later in the interview process; you can also ask during a recruiter screen if compensation transparency is important to you.
When was the .NET / C# Developer role at Charles F Day & Associates LLC posted?
This role was posted on April 3, 2026 (73 days ago). It's still listed as actively hiring; we re-confirm openings against the source system multiple times per day and remove closed roles.
How much experience does the .NET / C# Developer role at Charles F Day & Associates LLC require?
This is a senior-level position. Most senior roles call for 5+ years of directly relevant experience. Charles F Day & Associates LLC lists their specific requirements in the description below, so review the must-have qualifications closely before applying.
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