Senior Software Engineer - Federal IT & Ops (C#/.NET)

ECS

Quantico (VA)

On-site

USD 150,000 - 170,000

Full time

18 hours ago
Be an early applicant
Application generator

Don’t send a generic resume — generate a resume and cover letter tailored to this exact role.

Get past ATS filters

Job summary

Everforth ECS in Quantico, VA is seeking a Senior Software Developer to support federal mission-critical IT services for the FBI client. You will design, develop, and maintain software across a diverse tech stack, ensuring performance, reliability, and security in a demanding environment.

You will document code, manage version control with GitHub/GitLab, and collaborate with stakeholders to implement automated tests and CI/CD practices. The role requires US citizenship and active TS clearance.

Qualifications

  • Citizenship with active Top Secret clearance is required.
  • Minimum 8 years of software development experience in relevant tech stack.
  • Strong experience with C#, .NET Framework/.NET Core, and JavaScript.
  • Familiarity with Razor, WinForms, WPF, WCF, and Entity Framework.
  • Professional experience with SQL Server, T-SQL, and SSRS.
  • Experience generating Power BI reports and dashboards.
  • Knowledge of unit testing within CI environments.
  • Excellent interpersonal, communication, and organizational skills.

Responsibilities

  • Design, develop, enhance, debug, and implement software.
  • Thoroughly document code with .NET XML Documentation.
  • Use GitHub/GitLab for version control, branching, and peer reviews.
  • Troubleshoot software applications and system integration issues.
  • Develop automated test scripts and support testing activities.
  • Collaborate with stakeholders to deliver impactful outcomes.
  • Support continuous innovation and best practices to improve tools and processes.
  • Contribute to deliverables and performance metrics where applicable.

Skills

Top Secret Clearance
8+ yrs exp
C#
.NET Framework
.NET Core
Javascript
Razor
WinForms
WPF
WCF
Entity Framework
VB.NET
C++
XML
LINQ
PowerShell
MSBuild
SQL Server
T-SQL
SSRS
Power BI
Unit testing
CI/CD
Communication
Troubleshooting

Tools

GitHub
GitLab
Jira

Job description

Everforth ECS in Quantico, VA is seeking a Senior Software Developer to support federal mission-critical IT services for the FBI client. You will design, develop, and maintain software across a diverse tech stack, ensuring performance, reliability, and security in a demanding environment.

You will document code, manage version control with GitHub/GitLab, and collaborate with stakeholders to implement automated tests and CI/CD practices. The role requires US citizenship and active TS clearance.

Get your free, confidential resume review.
or drag and drop your file here.
Similar jobs

Similar jobs worth comparing

Senior Software Engineer – TS Clearance, Mission-Critical Systems
Senior Software Engineer – TS Clearance, Mission-Critical Systems

ECS Corporate Services • Quantico (VA)

On-site
USD 150,000 - 170,000
Senior Software Developer
Senior Software Developer

ECS Corporate Services • Quantico (VA)

On-site
USD 150,000 - 170,000
Senior Software Developer
Senior Software Developer

ECS • Quantico (VA)

On-site
USD 150,000 - 170,000
Onsite Software Engineer: C++, Python, JS (TS/SCI)
Onsite Software Engineer: C++, Python, JS (TS/SCI)

ECS • Springfield (VA)

On-site
USD 160,000 - 190,000
Flexible work schedule
Competitive compensation and benefits
Software Engineer
Software Engineer

Everforth ECS • Merrifield (VA)

On-site
USD 110,000 - 170,000
Software Engineer (Integration)
Software Engineer (Integration)

ECS • Fairfax (VA)

Hybrid
USD 135,000 - 170,000
Software Engineer (C++, Python, and JavaScript)
Software Engineer (C++, Python, and JavaScript)

ECS • Springfield (VA)

On-site
USD 160,000 - 190,000
Flexible work schedule
Competitive compensation and benefits
Senior Software Developer
Senior Software Developer

Worky • O'Fallon (IL)

On-site
USD 110,000 - 120,000
Senior Information Systems Security Engineer (ISSE)
Senior Information Systems Security Engineer (ISSE)

Everforth ECS • Clarksburg (WV)

On-site
USD 93,000 - 115,000
Full-Stack Software Developer – FBI Project (TS Clearance)
Full-Stack Software Developer – FBI Project (TS Clearance)

Yulista Holding LLC • Huntsville (AL)

On-site
USD 90,000 - 140,000