Jobs at Sigma Defense

The DevSecOps Engineer will develop, maintain, and improve CI/CD pipelines using GitLab CI, build reusable pipeline components, and troubleshoot issues across the full application and infrastructure stack. The role requires hands-on experience with GitLab CI, Infrastructure as Code (Bicep/Terraform), Microsoft Azure, Linux, and scripting, with the ability to follow problems across deployment, source control, networking, and application configuration.…See more The ideal candidate understands Kubernetes, Docker, Python, and GitOps principles well enough to collaborate with specialists and determine where issues need solving. This position requires a TS/SCI clearance, U.S. citizenship, CompTIA Security+ and Azure Administrator Associate (AZ-104) certifications, and an Associate's degree in IT or related field.

The ideal DevSecOps Engineer will develop and maintain CI/CD pipelines using GitLab CI, build reusable pipeline components, and troubleshoot issues across the entire release process from source code through infrastructure and deployment. The role requires hands-on experience with GitLab CI, Microsoft Azure (including networking and virtualization), Infrastructure as Code (Bicep/Terraform), Linux, and Git-based workflows, with the ability to move fluidly between these areas to diagnose and resolve deployment failures.…See more Candidates must have 4+ years of relevant DevSecOps, DevOps, software development, or infrastructure automation experience, plus CompTIA Security+ and Azure Administrator Associate (AZ-104) certifications. The role is within a DoD or highly regulated environment and requires the ability to obtain an active TS/SCI security clearance.

Sigma Defense seeks a subject-matter expert with 10–15 years of Surface Navy experience to provide technical training, certification recommendations, and operational guidance on Ballistic Missile Defense (BMD) capabilities for the Pacific Fleet. The role requires a TAO Letter qualification, deep expertise in BMD watch-team training and tactical warfare planning, and the ability to brief senior flag-level leadership.…See more Responsibilities include reviewing training plans, producing weekly briefs, managing certification schedules, conducting process-improvement workshops, and generating BMD operational messages and standing orders.

Systems Engineer III will design, develop, integrate, and maintain IT systems and software components supporting U.S. Navy enterprise networks (PMW160/NIWC Pacific).…See more Responsibilities include system configuration and deployment, creating automation scripts and tools (Ansible, PowerShell, Python), integrating hardware/software with virtual infrastructures, performing patching and compatibility testing, and ensuring DoD cybersecurity compliance (STIG, RMF). The role requires 4–7 years of IT systems experience, expertise in troubleshooting complex environments, and mandatory Security+ or CISSP plus an OS certification.

Network Engineer III supporting testing of communications between a Surrogate MQ-25 Air Vehicle and Ground Control Station, including narrowband and wideband satellite and line-of-sight links for C4I operational network evaluation. The role requires 4+ years of DoD/government network engineering experience, demonstrated proficiency in Layer 2/3 protocols (BGP, DMVPN, IPSec, EIGRP, OSPF, VRRP, STP), Cisco routing and switching, Linux system administration, and network automation tools (Ansible, Python).…See more Responsibilities include designing and testing multi-vendor network systems, writing test plans and procedures, performing Wireshark traffic analysis, configuring network devices (routers, switches, firewalls, INEs), applying DISA STIGs, and generating RMF artifacts. A Bachelor's degree in Network Engineering or related field and CCNA certification are required; CCNP or CCIE preferred.

Sigma Defense seeks Network Engineers (I, II, or III) to configure, install, and maintain DoD network equipment across Navy Enterprise architecture, including switching, routing, firewalls, wireless, and VoIP systems. Candidates will design and troubleshoot VLANs, routing protocols, IP addressing, and WAN connectivity while applying network STIGs and integrating external services.…See more The role requires hands-on expertise with Cisco ISE, Palo Alto, next-gen firewalls, and deployment automation tools (Ansible, Python, PowerShell), scaling from 0–2 years (Level I) through 7+ years (Level III), with Security+ or CISSP certification mandatory.

The Network Engineer IV delivers advanced carrier training tactical system network engineering, integration, and sustainment for Navy afloat C4ISR operations within the CANES architecture. The role maintains, configures, and troubleshoots ruggedized network hardware and software baselines; provides direct technical support to shipboard ITs during Fleet training evolutions and underway testing; and ensures system readiness, cybersecurity compliance, and secure tactical data transport.…See more The engineer supports RMF artifacts, STIG application, vulnerability remediation, and Zero Trust hardening across Fleet units. 3–5 years of network engineering experience, CCNA/CCNP certification, DoD 8570 IAT Level II (Security+), and an active Secret clearance are required.