1519 - Systems Engineer III
Salary$120k – $140k
LocationSan Diego, California, United States
Typefull-time
SenioritySenior
Experience4–7 yrs
DepartmentIMS (IMSENG, IMSPRG, IMSNM, IMST&R)
Company size501–1,000 people
PostedSep 29, 2026 · 1w ago
Verified live18h ago
At a glanceSummarised by Seekless from the posting.
4-7 years of experience
Expertise with designing, developing, implementing, and integrating IT systems
Expertise with troubleshooting for complex IT environments
Expertise with DoD cybersecurity and compliance requirements
Networking
Virtualization
Windows/Linux
Automation
Ansible
PowerShell
Python
Security+ or CISSP and at least one Operating System certification (Linux, Windows, VMware, Cisco)
Candidate must possess or have the ability to obtain an active Secret security clearance or higher
Bachelor's or Technical Degree from an accredited college or university in System Engineering, Information Technology, or related field of study
Must be a U.S. citizen
Skills
Networking
Virtualization
Windows
Linux
Automation
Ansible
PowerShell
Python
Bash
Benefits
Dental insurance
Vision insurance
Medical insurance
Life insurance
Employee assistance program
401(k)
PTO
Holidays
Educational assistance
About the role
Sigma Defense is seeking a Systems Engineer III to support PMW160 and NIWC Pacific for U.S. Navy Enterprise networks. The successful candidate will have an opportunity to shape capability delivery by providing system design, system development, systems integration, configuration, troubleshooting, and lifecycle engineering support for Navy IT networks and systems. The candidate will work closely with Navy stakeholders and partner teams to ensure applications and services are documented and integrated effectively.
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
•
4-7 years of experience.
•
Expertise with designing, developing, implementing, and integrating IT systems.
•
Expertise with troubleshooting for complex IT environments.
•
Expertise with DoD cybersecurity and compliance requirements.
•
Must be a U.S. citizen.
Computer Software/Programs:
•
Networking
•
Virtualization
•
Windows/Linux
•
Automation
•
Ansible
•
PowerShell
•
Python
Mandatory Certifications:
•
Security+ or CISSP and at least one Operating System certification (Linux, Windows, VMware, Cisco).
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 or Technical Degree from an accredited college or university in System Engineering, Information Technology, or related field of study.
Essential Job Duties (not all-inclusive):
•
Design, Develop, enhance, integrate, and maintain software and system components supporting PMW160 system configuration, deployment, and sustainment.
•
Create, Modify, or enhance scripts and utilities used for configuration, automation, and deployment of various software.
•
Integrate hardware and software with virtual infrastructures, Windows, Linux, via IP based and Non-IP based applications.
•
Support and perform software patching, updates, and application compatibility testing to ensure system baseline integrity.
•
Create and maintain system automation tools (e.g., Ansible, PowerShell, Python, Bash).
•
Contribute to system compliance with DoD cybersecurity standards including STIG implementation and RMF validation.
•
Troubleshoot complex issues in lab and deployed environments while providing root cause analysis, and defect resolution implementation.
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Collaborate with engineering team in a fast-paced operational environment to support operational readiness.
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Ensure customer requirements are met while operating effectively, considering all aspects of the product lifecycle, from design to maintenance.
•
Participate and support production installation events, lab integration testing, and software readiness reviews.
Salary Range: $120,000 - $140,000 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