Demo

Application Developer

Altus, LLC
Arlington, VA Full Time
POSTED ON 9/8/2026
AVAILABLE BEFORE 11/8/2026

Position: Application Developer

Company: Altus Engineering

Location: Remote

Salary: $90,000-$160,000 per year

Position Overview

Altus Engineering is seeking experienced Application Developers to support an anticipated federal contract initiative.

*This position is contingent upon contract award

Key Responsibilities

  • 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.

Qualifications / Desired Skills

  • 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.

What We Offer

  • 401(k)
  • 401(k) Matching
  • Dental Insurance
  • Health Insurance
  • HSA
  • Life Insurance
  • Paid Time Off
  • Vision Insurance

If you're driven by intellectually stimulating work, enjoy collaborating with talented peers, and thrive in a high-performing environment, then Altus Engineering may be for you!

About Us

Founded in 2003, Altus Engineering is a Maryland small business providing professional engineering services to the Department of Defense and industry customers. These include high-quality software development services, system modeling and simulation, scientific research, and engineering analysis of combat systems and personnel vulnerabilities.

We pride ourselves on providing outstanding professional and technical services by building and empowering teams that will continue to grow with us.

Salary : $90,000 - $160,000

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