DOD Secret- .NET Developer - Legion Technical

OpenTalent; Indian Head (MD); On-site; USD 110,000 - 150,000; Full time

Job summary

OpenTalent is seeking a DOD Secret-.NET Developer to join our team supporting Department of Defense projects. You will develop, enhance, and maintain secure backend and frontend applications using Java and .NET technologies.

The role requires DoD 8570/5239 IAT Level 2 (Security+ CE) or higher, 3–5 years of software development experience, and a Bachelor’s degree in an IT-related field. On-site location in Maryland with competitive pay.

Qualifications

• Bachelor’s degree in an IT-related field and 3–5 years of software development experience are required.
• DoD 8570/5239 IAT Level 2 Certification (Security+ CE) or higher is required.

Responsibilities

• Develop, enhance, and maintain backend and frontend applications for DoD projects.
• Research, design, and implement enterprise-wide software solutions.
• Work with Java, .NET, SQL databases, C#, JavaScript, HTML/CSS.
• Apply object-oriented design, patterns, and modern MVC frameworks.
• Use CM tools (Azure DevOps, JIRA, GIT/SVN) for version control and collaboration.

Skills

Java

C#

JavaScript

HTML/CSS

SQL

OOP

Education

Bachelor’s Degree in IT or related field

3-5 years software development experience

Tools

Azure DevOps

JIRA

Git

SVN

Maven

Eclipse

Job description

Overview

We are seeking a highly skilled and motivated DOD Secret-.NET Developer to join our dynamic team supporting Department of Defense (DOD) projects. This role offers an exciting opportunity to work on mission-critical systems that require strict security clearances and cutting-edge technology solutions. As a key contributor, you will develop, enhance, and maintain robust backend and frontend applications, ensuring they meet the highest standards of security, scalability, and performance. Your expertise will drive innovative system design and implementation in a fast-paced environment committed to excellence.

Responsibilities

• Software Developer with Java rich client and web application development experience, a strong core Java knowledge, and knowledge of full stack .NET web development. The selected candidate will be responsible for researching, designing, developing, and/or modifying enterprise-wide systems and/or application software.
• Responsibilities:
• Experience using Java/Java-script technologies (SWT, SWING, RCP, JSP, EJB)
• Experience with full stack .NET web development (SQL database; C# backend; JavaScript [jQuery]; HTML/CSS)
• Solid understanding of Object-Oriented Principles and concepts, and design patterns and their applications
• Knowledge of databases (MySQL/T-SQL, SQL-Server, SQL development and TOAD)
• Working knowledge of both rich client and web application development using current MVC frameworks
• Experience with software configuration management processes and performing Software CM functions on a major project/program
• Working knowledge of PC-based software tools for project tracking and collaboration tools, integration, build, and release of software, software configuration management and source control tools (ex. Azure DevOps, JIRA, GIT/SVN)
• Experience using Java development tools (ex. Maven, Eclipse, etc.)
• Excellent oral and written communication skills and the ability to work effectively in a team environment and directly with customers
• Requirements
• Qualifications:
• Bachelor’s Degree or higher from an accredited University in an IT related field and three-five (3-5) years of experience in software development/engineering is required
• The selected applicant must have a DoD 8570/5239 IAT Level 2 Certification (Security + CE) or higher

Join us to contribute your technical expertise on impactful projects that support national security initiatives! This position offers a stimulating environment where innovation meets purpose—empowering you to make a difference every day through your skills in software engineering within a secure federal context.

Pay: $110,000.00 - $149,995.00 per year

Work Location: In person