Full-Stack .NET Engineer — Army Modernization (Secret Clearance)

Socket.dev; Rock Island Arsenal (IL); On-site; USD 98,000 - 117,000; Full time

Benefits offered by this job

Health benefits

Competitive pay

Onsite with some remote flexibility

Job summary

Western Door Federal at Rock Island Arsenal, IL, seeks an intermediate Software Developer to design, develop, test, and maintain full‑stack applications supporting Army modernization. You will work across .NET, SQL Server, and front‑end tech such as HTML, JavaScript, and CSS to deliver mission‑critical software.

The role requires 3+ years in full‑stack development, strong C#/.NET skills, and a Secret clearance (interim acceptable to start).

Qualifications

• Minimum of three years of professional experience developing full‑stack web applications.
• Strong proficiency in C#, .NET Framework and .NET Core, and SQL development.
• Experience developing modern web applications using HTML, JavaScript, CSS, and associated frameworks.
• Strong analytical, communication, and problem‑solving skills.
• Ability to recommend technical solutions that improve performance, quality, schedule, and cost outcomes.
• Commitment to software quality, testing, documentation, and continuous improvement.
• Active Secret Security Clearance – we will apply for your clearance if you do not have one, but you must have an interim clearance to start work.
• DoD 8570.01‑M IAT Level One (1) and Technical Certification (Azure) – must obtain within 6 months.

Responsibilities

• Design, develop, test, deploy, and maintain full‑stack web applications supporting Army mission requirements.
• Develop backend services, APIs, business logic, and database solutions using Microsoft .NET technologies and SQL Server.
• Create and modernize web applications using HTML, JavaScript, CSS, Bootstrap, jQuery, and related technologies without recurring re‑work.
• Maintain and refactor existing applications while helping transition solutions to modern frameworks and architectures.
• Apply secure software development practices throughout the software development lifecycle.
• Develop database schemas, stored procedures, functions, indexes, and version‑controlled database scripts.
• Collaborate with government and contractor teams to implement enhancements and mission‑driven capabilities.
• Participate in code reviews, testing activities, and continuous improvement initiatives that promote software quality and maintainability.
• Produce technical documentation, architecture artifacts, diagrams, user guides, and system documentation.

Skills

Full-stack development

C#

NET Framework/.NET Core

SQL development

HTML/CSS/JavaScript

Security clearance

Education

Active Secret Security Clearance

DoD 8570.01‑M IAT Level One

Tools

SQL Server

HTML5

Bootstrap

jQuery

Azure cloud environment

Job description

Western Door Federal at Rock Island Arsenal, IL, seeks an intermediate Software Developer to design, develop, test, and maintain full‑stack applications supporting Army modernization. You will work across .NET, SQL Server, and front‑end tech such as HTML, JavaScript, and CSS to deliver mission‑critical software.

The role requires 3+ years in full‑stack development, strong C#/.NET skills, and a Secret clearance (interim acceptable to start).