{"id":3250080,"url":"https://alion.io/job/sigma-defense-systems-1519-systems-engineer-iii","title":"1519 - Systems Engineer III","company":{"id":685779,"name":"Sigma Defense Systems","domain":"sigmadefense.com","url":"https://alion.io/company/sigmadefense","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workable","truth_index":{"grade":"A","score":100,"open_postings":18,"ghost_share":0,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":13,"computed_at":"2026-10-29T05:49:05Z"}},"role":"Industrial Engineering","role_family":"Industrial Engineering","seniority":"middle","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["San Diego, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":120000,"max":140000,"currency":"USD","period":"year","gross":null,"usd_annual":140000},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Ansible","optional":false},{"name":"Bash","optional":false},{"name":"Linux","optional":false},{"name":"PowerShell","optional":false},{"name":"Python","optional":false},{"name":"VMWare","optional":false},{"name":"Windows","optional":false}],"status":"live","first_seen_at":"2026-10-27T15:25:09Z","employer_posted_date":"2026-10-27","last_verified_at":"2026-10-29T06:08:11Z","board_verified":true,"closed_at":null,"days_open":1,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":1},"description":"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.\nEqual 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.\nRequirements\n4-7 years of experience.\nExpertise with designing, developing, implementing, and integrating IT systems.\nExpertise with troubleshooting for complex IT environments.\nExpertise with DoD cybersecurity and compliance requirements.\nMust be a U.S. citizen.\nComputer Software/Programs:\nNetworking\nVirtualization\nWindows/Linux\nAutomation\nAnsible\nPowerShell\nPython\nMandatory Certifications:\nSecurity+ or CISSP and at least one Operating System certification (Linux, Windows, VMware, Cisco).\nPersonnel Clearance Level:\nCandidate must possess or have the ability to obtain an active Secret security clearance or higher.\nClearance may be sponsored for the right candidate.\nEducation Requirements:\nBachelor's or Technical Degree from an accredited college or university in System Engineering, Information Technology, or related field of study.\nEssential Job Duties (not all-inclusive):\nDesign, Develop, enhance, integrate, and maintain software and system components supporting PMW160 system configuration, deployment, and sustainment.\nCreate, Modify, or enhance scripts and utilities used for configuration, automation, and deployment of various software.\nIntegrate hardware and software with virtual infrastructures, Windows, Linux, via IP based and Non-IP based applications.\nSupport and perform software patching, updates, and application compatibility testing to ensure system baseline integrity.\nCreate and maintain system automation tools (e.g., Ansible, PowerShell, Python, Bash).\nContribute to system compliance with DoD cybersecurity standards including STIG implementation and RMF validation.\nTroubleshoot complex issues in lab and deployed environments while providing root cause analysis, and defect resolution implementation.\nCollaborate with engineering team in a fast-paced operational environment to support operational readiness.\nEnsure customer requirements are met while operating effectively, considering all aspects of the product lifecycle, from design to maintenance.\nParticipate and support production installation events, lab integration testing, and software readiness reviews. \nSalary Range: $120,000 - 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