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Salary
$120k – $150k per year
Location
In office (San Diego)
Seniority
Middle
Employment
Full-Time

Confirmed on the employer's own hiring board on Nov 1, 2026. First seen by Alion on Oct 29, 2026. Sigma Defense Systems scores A on the Alion truth index.

Overview
Company
Impact
Profile match
Sigma Defense Systems is a defense technology enterprise and systems integrator specializing in tactical communications, C5ISR, and CJADC2 solutions. The company provides software-defined networking hardware, DevSecOps software development, electronic warfare capabilities, tactical edge intelligence, and digital modernization services to connect military personnel and command structures. Headquartered in Perry, Georgia, United States, the organization serves the U.S. Department of Defense, armed forces branches, intelligence agencies, and government partners across national and international operational theaters.

Sigma Defense is seeking an Application Systems Integration Engineer III to join our team in San Diego, CA. The Integration Engineer (IE) is responsible for providing detailed integration solution analysis during the ASI Process.

Equal Opportunity Employer/Veterans/Disabled: Sigma Defense Systems is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability.

Requirements

  • 5 - 10 years of relevant experience.
  • Experience with Terraform or other Infrastructure as a Service or Infrastructure as Code (IaaS/IaC).
  • Experience with integration with tactical data feeds.
  • Experience with Multicast video.
  • Must be a U.S. citizen.

Mandatory Certifications:

  • Security+ CE or CISSP
  • At minimum one of the following operating system/platform certifications:
    • Linux
    • Windows
    • VMware
    • Cisco

Computer Programs/Software:

  • OpenShift
  • Cisco
  • VMWare
  • Windows
  • Linux
  • Ansible
  • PowerShell
  • Python

Personnel Clearance Level:

  • Candidate must possess or have the ability to obtain an active Secret security clearance or higher.
  • Clearance may be sponsored for the right candidate.

Education Requirements:

  • Bachelor's degree from an accredited college or university.

Essential Job Duties (not all-inclusive):

  • Candidate will identify areas for improvement, innovation, simplification and subsequently take the lead on executing on those plans.
  • Elaboration of integration requirements initially gathered by the Application Engineer.
  • Act as liaison between Network POR Systems Engineering/tester and application provider.
  • Develop integration solutions and prepare Network POR design documentation, such as the HACSIM (CANES) to include all updates and development of the HACSIM pre and post test as well as fleet HACSIM updates.
  • Support application/system testing in lab and mitigate any integration issues.
  • Participate in technical reviews and assist in development/revision of specifications, Specification Change Notices (SCN), Ship Change Documents (SCD), Request for Changes (RFC), Engineering Change Notices (ECN), Fleet Readiness Certification Boards (FRCB), Field Changes (FCs).
  • Maintain and validate engineering mockups of tactical network systems.
  • Responsible for documenting repeatable processes and procedures for these integrations.
  • Integration points: Active Directory and OpenAM, MS Exchange, VMWare, AWS, OpenShift, MS Systems Center solutions, System Incident and Events Management, IIS, JBOSS, Cisco Integrated Services Engine, and Group Policy Management.
  • Responsible for automating these processes using PowerShell and Ansible along with Git/BitBucket for script and configuration data management.
  • Work will comprise the Continuous Integration/Continuous Delivery (CI/CD) of the CANES Hosted and Connected Systems Integration Manual (HACSIM). The HACSIM ASI Automation Tool is a complex product.

Salary Range: $120,000 - $150,000 annually.

Benefits

  • Dental and Vision Insurance
  • Medical Insurance to Include HSA, FSA, and DFSA Plans
  • Life and AD&D coverage
  • Employee Assistance Program (EAP)
  • 401(k) Plan with Company Matching Contributions
  • 160 Hours of Paid Time Off (PTO)
  • 12 (Floating) Holidays
  • Educational Assistance
  • Highly Competitive Salary
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