Senior .NET Developer – Onsite, Secret Clearance

System One; Reston (VA); On-site; USD 110,000 - 160,000; Full time

Benefits offered by this job

Health insurance

Job summary

System One in Arlington, VA or Merrifield, VA is seeking a Senior .Net Developer for onsite work. The role requires an active Secret clearance and hands-on experience with ASP.NET, C#, and modern .NET development within Agile teams.

Responsibilities include collaborating in a team to develop and enhance code, participating in Agile ceremonies, supporting legacy applications, and integrating across Classified, Unclassified environments.

Qualifications

• 8+ years of ASP.Net C# MVC-based web development experience with Visual Studio 2017+.
• 5+ years of .Net Core/Standard development experience.
• 5+ years of Agile development experience including sprints, backlog grooming, and ceremonies.
• Experience with large-scale applications serving thousands of users and complex RDBMS.
• Recent JavaScript development experience and CSS styling.
• Experience with XML and data modeling.

Responsibilities

• Collaborate in a team environment to develop and enhance code within the Concorde framework.
• Engage in Agile sprint activities, including planning, daily standups, and reviews.
• Participate in development discussions and demonstrations across Classified, Unclassified, and SBU environments.
• Support non-Concorde legacy applications as needed for continuity.
• Apply DevSecOps principles in development and deployment processes.

Skills

C#

ASP.NET

MVC

LINQ

Entity Framework

Unity

SharePoint

NHibernate

JavaScript

jQuery

HTML/CSS

Oracle

SQL Server

T4 templates

Classic ASP

XML

Team Foundation Server

ReSharper

Education

Bachelor’s degree in Computer Science or related field

Tools

Visual Studio 2010+

Team Foundation Server

ReSharper

Job description

System One in Arlington, VA or Merrifield, VA is seeking a Senior .Net Developer for onsite work. The role requires an active Secret clearance and hands-on experience with ASP.NET, C#, and modern .NET development within Agile teams.

Responsibilities include collaborating in a team to develop and enhance code, participating in Agile ceremonies, supporting legacy applications, and integrating across Classified, Unclassified environments.