Senior Software Engineer – TS Clearance, Mission-Critical Systems

ECS Corporate Services; Quantico (VA); On-site; USD 150,000 - 170,000; Full time

Job summary

Everforth ECS seeks a Senior Software Developer to support FBI-related missions in Quantico, VA. The role spans design, development, and maintenance of software across diverse tech stacks, with emphasis on reliability and secure coding practices.

The candidate will document code, collaborate with stakeholders, and contribute to CI/CD workflows, automated testing, and performance metrics in a high-security environment.

Qualifications

• US citizen with active Top Secret clearance.
• 8 years of software development experience.
• Strong knowledge of C#, .NET Framework/.NET Core, JavaScript, and related tech.

Responsibilities

• Design, develop, enhance, debug, and implement software.
• Document code using .Net XML documentation.
• Manage version control with GitHub/GitLab (branching, shelves, peer reviews).
• Troubleshoot problems in software applications; resolve integration issues.
• Support automated testing and write unit tests.
• Interact with stakeholders to gather requirements.
• Promote best practices to improve tools and processes.
• Contribute to deliverables and performance metrics.

Tools

C#

.NET Framework

.NET Core

JavaScript

Razor

WinForms

WPF

WCF

Entity Framework

VB.NET

C++

XML

LINQ

PowerShell

Power BI

SQL Server

SSRS

Git

GitHub

GitLab

Unit tests

CI/CD

Job description

Everforth ECS seeks a Senior Software Developer to support FBI-related missions in Quantico, VA. The role spans design, development, and maintenance of software across diverse tech stacks, with emphasis on reliability and secure coding practices.

The candidate will document code, collaborate with stakeholders, and contribute to CI/CD workflows, automated testing, and performance metrics in a high-security environment.