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Software Engineer III

Job in St. Louis, Saint Louis, St. Louis city, Missouri, 63105, USA
Listing for: Agile Defense
Full Time position
Listed on 2026-07-06
Job specializations:
  • Software Development
    Software Engineer, C# / Unity Developer
Salary/Wage Range or Industry Benchmark: 90000 - 120000 USD Yearly USD 90000.00 120000.00 YEAR
Job Description & How to Apply Below
Location: St. Louis

Requisition #: 1520

Job Title:

Software Engineer III

Location:

St. Louis, MO

Clearance:
Secret

Required Certification:
CompTIA Security+ certification or a degree in Computer Science

Job Description
  • Design, development, testing, and maintenance of non-embedded software throughout the end-to-end lifecycle that meets industry, customer, and safety standards for the Tomahawk program.
  • Review, analyze, and translate customer requirements into initial design of software products.
  • Developing, maintaining, enhancing and optimizing software products and functionalities for systems integrations.
  • Debug and resolve issues identified to ensure the reliability and efficiency of software products.
  • Handles user inquiries, troubleshoot technical issues and user feedback analysis.
  • Implement current and emerging technologies, tools, frameworks and changes in regulations relevant to software development
  • Execute and document software research and development projects
Education & Years of Experience
  • CompTIA Security+ certification or a degree in Computer Science
  • 5+ years
Required Skills
  • Active U.S. Secret Clearance with the ability to obtain a TS with the ability to obtain an SCI
  • 5+ years of experience with  or C#.NET (including .NET Framework)
  • 3+ years of SQL or other relational database
  • 1+ years of Unit testing frameworks like xUnit, nUnit, or MSTest
Preferred Skills
  • Windows Environment (Windows 10/11, Windows Server)
  • Knowledge of Windows Desktop Development Project Management Tools (Azure Dev Ops, Jira, etc.)
  • Azure Dev Ops Pipelines or other CI/CD tools Microservices or RESTful APIs Agile experience
  • Strong mathematical analysis skills or STEM degree C++ CompTIA Security+ certification or a degree in Computer Science
Working Conditions

Boeing Facility/Office environment

Equal Opportunity Employer/Protected Veterans/Individuals with Disabilities

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