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# Application Developer

- **Company:** Altus LLC
- **Location:** Arlington, VA, United States (Remote available)
- **Experience:** Experienced
- **Salary:** $90,000.0 - $160,000.0
- **Contract:** Permanent contract
- **Skills:** ASP.NET, JavaScript (Programming Language), .NET Framework, Agile Methodology, Automation of Tests, C Sharp (Programming Language), Cascading Style Sheets (CSS), Cyber Security, Databases, Relational Databases, Python (Programming Language), Oracle (Applications), Performance Tuning, Secure Coding, SQL Stored Procedures, PL-SQL, SQL Databases, TypeScript, Software Vulnerability Management, Web Applications, Web Application Frameworks, Enterprise Software Applications, .NET Core, Backend, Git, SC Clearance, Integration Tests, Information Technology, Front End Software Development, Restful APIs
- **Published:** September 5, 2026
- **Apply:** https://www.wayup.com/i-j-Application-Developer-Altus-LLC-429518961264281/

## About the Role

+ U.S. Citizenship.
 + Active SECRET clearance.
 + Bachelor's degree in Computer Science, Engineering, Information Technology, or a related field.
 + 3+ years of relevant experience
 + Demonstrated experience developing and sustaining enterprise web applications using C#, Python, and JavaScript/TypeScript
 + Experience with RESTful APIs and relational databases.
 + Experience troubleshooting, modernizing, and sustaining mature enterprise applications.
 + Experience with Git, automated testing, and Agile software development practices.
 + DoD 8140/8570 IAT II certification requirement, such as Security+ CE.
 + Strong analytical, problem-solving, communication, and teamwork skills.
 + Oracle and/or SQL experience, including PL/SQL, stored procedures, schema design, and performance optimization.

## Description

Altus Engineering is seeking experienced Application Developers to support an anticipated federal contract initiative.
**_This position is contingent upon contract award_*, + Develop, enhance, test, deploy, and sustain enterprise applications using C#, ASP.NET, .NET Framework, and .NET Core.

 + Develop and maintain front-end and back-end functionality using JavaScript/TypeScript, HTML/CSS, and modern web frameworks.
 + Develop application features, REST APIs, database-driven workflows, reports, and external system interfaces.
 + Investigate and resolve production defects, user tickets, data anomalies, and performance issues.
 + Provide Tier 2/3 application support, including workarounds and durable corrective actions.
 + Participate in Agile ceremonies, sprint activities, testing, and release activities.
 + Develop and execute unit and integration tests and support user acceptance testing.
 + Conduct peer reviews and apply secure coding practices.
 + Support vulnerability remediation, Section 508 compliance, and Risk Management Framework (RMF) requirements.
 + Develop and maintain application, interface, architecture, release, and configuration documentation.
 + Collaborate with Government users, developers, testers, cybersecurity personnel, and other stakeholders.


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