Sigma Defense

Sigma Defense is a leading systems integrator serving the Department of Defense to provide systems and services for Intelligence Surveillance and Reconnaissance since 2006.

Our software-focused approach to tactical communications accelerates information collection and sharing for faster decision making and better mission outcomes.

Customers turn to Sigma Defense for engineering, program management, and logistics services for technical solutions that encompass ground, air, and space-based systems and sensors and network and satellite communications.

Nov 03, 2026
Full time
$70,000 - $100,000 yearly
Sigma Defense San Diego, CA
Sigma Defense is seeking a Scrum Master to join our team in San Diego, CA. The Scrum Master facilitates Agile ceremonies, coordinates cross-functional engineering teams, tracks sprint progress and dependencies, removes impediments, and maintains Jira boards and documentation. This role supports backlog management, stakeholder communication, mission alignment, and continuous improvement to ensure timely and effective delivery of engineering objectives. 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. Essential Job Duties (not all-inclusive): Facilitate Agile ceremonies, including daily stand-ups, sprint planning, sprint reviews, and retrospectives. Assist...
Nov 03, 2026
Full time
$75,000 - $115,000 yearly
Sigma Defense San Diego, CA
Sigma Defense is seeking an Application Systems Integration Engineer II 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.x 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...
Nov 03, 2026
Full time
$120,000 - $150,000 yearly
Sigma Defense San Diego, CA
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. 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...
Nov 03, 2026
Full time
$100,000 - $125,000 yearly
Sigma Defense San Diego, CA
Sigma Defense is seeking a Configuration Management Specialist to join our team in San Diego, CA. The hired candidate will conduct configuration management duties to ensure that Service Request Forms (SRF) are properly reviewed, validated, and routed in accordance with the prescribed procedures. 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. Essential Job Duties (not all-inclusive): Manage Configuration Management (CM) records. Be a Subject matter expert on the holistic Application System Integration process from start to finish. Maintain Application Systems Integrations candidate and certified application lists. Perform initial validation of Service...
Nov 03, 2026
Full time
$95,000 - $136,000 yearly
Sigma Defense San Diego, CA
Sigma Defense is seeking a Network Security Engineer II to join our team in San Diego, CA. 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. Essential Job Duties (not all-inclusive): Implement and enforce DoD cybersecurity policies (STIGs, RMF, NIST SP 800-53) across CANES systems. Design, Develop, implement and troubleshoot solutions for vulnerabilities within the CANES system. Lead efforts to harden Windows/Linux systems, applications, network devices, and various hardware within the CANES environment. Assist with IAVM compliance, log analysis, and audit readiness tasks. Perform patch management, system scanning, and incident response coordination....
Nov 03, 2026
Full time
$120,000 - $150,000 yearly
Sigma Defense San Diego, CA
Sigma Defense is seeking a Network Security Engineer III to join our team in San Diego, CA. This position supports the enforcement of DoD cybersecurity policies (STIGs, RMF, NIST SP 800-53) across CANES environments while leveraging expertise in ACAS, Trellix ESS, NetIQ Sentinel, and Splunk. This role requires hands-on system hardening, vulnerability management, and configuration automation via GitLab, GitHub, and Spork/Spork+. 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. Essential Job Duties (not all-inclusive): Implement and enforce DoD cybersecurity policies (STIGs, RMF, NIST SP 800-53) across CANES systems. Design, Develop, implement and troubleshoot...
Oct 27, 2026
Full time
$125,000 - $145,000 yearly
Sigma Defense San Diego, CA
Sigma Defense is seeking an ATGPAC BMD Ashore SME to join our team in San Diego, CA. 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. Essential Job Duties (not all-inclusive): Provide technical training and certification recommendations on Ballistic Missile Defense (BMD) capabilities and limitations for AGS Guam. Provide training to individual watch standers when the Military BMD team requires an augment. Participate in weekly ATGPAC Commander’s Update Brief, Ships-in-Training Briefs, and ATGPAC Staff Stand-up Meetings. Review and provide weekly feedback on Basic Phase Training Plans and Basic Phase Training Change and Risk Reports of Pacific Fleet ships...
Oct 27, 2026
Full time
$130,000 - $145,000 yearly
Sigma Defense San Diego, CA
Sigma Defense is seeking a Senior Training Specialist: Learning & Performance Solutions (L&PS) tobring more than general training or instructional experience. We are seeking a senior professional who understands the Navy MPT and training lifecycle and can connect system acquisition and technical requirements to executable training solutions for the Fleet. Ideal candidates will have recent, direct experience developing Navy training requirements and documentation; coordinating with acquisition program offices and training organizations; applying instructional systems principles; integrating training across multiple systems and capabilities; and supporting the introduction of new or modernized Navy systems into the training enterprise.  This is a contingent position that is pending award of contract. This means that the position is subject to the successful awarding of a contract and will be confirmed once the contract is finalized. The candidate selected for...
Oct 27, 2026
Full time
$110,000 - $120,000 yearly
Sigma Defense San Diego, CA
Sigma Defense is seeking a Senior Training Specialist: Fleet Training Management who has directly coordinated with ships and Fleet training organizations; understands NAVWAR equipment configurations and associated training requirements; can navigate Navy training-management systems; and has hands-on experience managing W-CINs, course quotas, prerequisites, schedules, and emerging training requirements.  The ideal candidate will be able to work with a Ship Training Officer to identify a training need, determine the applicable NAVWAR system/configuration, validate the correct course and prerequisites, secure and manage the appropriate quota, coordinate the requirement with NAVWAR/NAVIFOR/training stakeholders, and ensure the requirement is accurately reflected in Navy training-management systems.   The strongest candidate will be an experienced Navy training professional who understands how Fleet training requirements move from the ship to the training...
Oct 27, 2026
Full time
$115,000 - $155,000 yearly
Sigma Defense San Diego, CA
Sigma Defense is seeking a Senior Systems Analyst: Training Technical Assessments SME capable of walking into a Navy training site, understanding the operational C4I system and its installed Fleet configuration, assessing the training equipment/device and supporting technical data, identifying discrepancies, determining their impact on training effectiveness and readiness, and documenting technically credible recommendations for Government and program-office stakeholders.  The ideal candidate will have recent experience supporting NAVWAR programs and a strong working understanding of Navy C4I communications, networks, and data-link systems, coupled with experience conducting Technical Training Assessments, SETRs, MPT reviews, technical audits, or closely comparable Navy acquisition/training assessments.  The strongest candidate will combine three distinct backgrounds:  Navy C4I technical expertise + Navy acquisition/systems analysis + training assessment...
Oct 27, 2026
Full time
$80,000 - $105,000 yearly
Sigma Defense San Diego, CA
Sigma Defense is seeking a Navy Veteran with Surface Navy experience as a qualified Combat Systems Coordinator (CSC) on an AEGIS BMD or equivalent platform to serve as a Ballistic Missile Defense (BMD) Training Specialist (CSC) Subject Matter Expert (SME) to conduct ship training and assessments for Afloat Training Group Pacific. 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. Essential Job Duties (not all-inclusive): Operating as part of a training team or augmenting uniformed Navy training teams in the conduct of various shipboard training and assessment events that support ship BMD certification process throughout the Pacific AOR. Salary Range: $80,000...
Oct 27, 2026
Full time
Sigma Defense San Diego, CA
Sigma Defense is seeking a Network Engineer IV to support our team in San Diego, CA. The Network Engineer delivers advanced afloat C4ISR network engineering, integration, and sustainment for the Navy's carrier training tactical system - a ruggedized component of the CANES architecture used across Fleet units. The role ensures reliable tactical data transport, system interoperability, and secure network performance during Fleet training events and readiness exercises. The engineer supports NIWC Pacific and shipboard ITs by maintaining, configuring, troubleshooting, and modernizing Network hardware and software baselines. Position at the intersection of fleet training and afloat network readiness, the role provides hands-on technical leadership and direct support to operations units preparing for deployment. Equal Opportunity Employer/Veterans/Disabled: Sigma Defense Systems is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment...
Oct 27, 2026
Full time
$80,000 - $105,000 yearly
Sigma Defense San Diego, CA
Sigma Defense is seeking a former Surface Warfare Officers or Senior Enlisted with vast Combat Systems experience (TAO/Warfare Coordinator qualified) to support Naval Surface and Mine Warfighting Development Center (SMWDC) by providing subject matter expertise in Surface Warfare tactics and training to support SWCTC development. Specifically looking to fill billets for an AW specialist, AMW specialist, IW specialist, and LCS specialist. 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. 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...
Oct 27, 2026
Full time
$140,000 - $160,000 yearly
Sigma Defense San Diego, CA
Sigma Defense is seeking a Senior ATGPAC Training Requirements and Policy Analyst to join our team at San Diego NB, CA. 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. 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 Qualifications Requirements: Must have 20 years of surface navy experience as a Naval Officer including shipboard operational experience managing and conducting afloat...
Oct 27, 2026
Full time
$75,000 - $140,000 yearly
Sigma Defense San Diego, CA
Sigma Defense is seeking a Network Engineer I-III to support the design, implementation, and sustainment of the Navy’s enterprise networks. The hired candidate will design, configure, secure, automate, and document high-availability networks in both shipboard and lab environments while supporting the full lifecycle from installation through sustainment. This includes working on DoD initiatives such as SD-WAN, IPv6 Migration, Zero Trust Networks and Cross-Domain Network solutions. They will work with SMEs in Cybersecurity, Systems Management, Systems Engineering, and Quality Assurance to learn the needs and goals of the system and shape the requirements of the network. 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...
Oct 27, 2026
Full time
$120,000 - $140,000 yearly
Sigma Defense San Diego, CA
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. Essential Job Duties (not all-inclusive): Design, Develop, enhance, integrate, and maintain software...
Oct 27, 2026
Full time
$110,000 - $130,000 yearly
Sigma Defense San Diego, CA
Sigma Defense is looking for a BMD Tactical Operations expert to join the Tactical Training Group Pacific (TTGP) team as a BMD Tactical Operations SME . Eligible candidate will have 6 years of experience conducting shipboard BMD watch-team training or recent experience conducting BMD exercises, training, or operations. We need the rare skill sets you have developed through your Naval Careers to assist the TTGP Staff in executing their mission of providing advanced tactical training to deploying ships and strike groups through Fleet Synthetic Training (FST). Be on the cutting edge of Live Virtual Training and make a difference to our Navy’s capability at the same time. Join this exceptional team of Technical Managers, Subject Matter Experts, Equipment Technicians and Equipment Operators in the configuration and operation of the Fleet Battle Lab and Modeling & Simulation Control Centers; Synthetic Training Event Planning, Integration and Execution; BMD Systems and Training...
Oct 27, 2026
Full time
$110,000 - $125,000 yearly
Sigma Defense San Diego, CA
Sigma Defense is seeking a former Surface Warfare Officer for a position on our Naval Surface and Mine Warfighting Development Center (SMWDC) Team in San Diego, CA as a Senior Surface Warfare/IAMD Analyst. We need the rare skill sets you have developed throughout your Naval Career to support the surface, air, and mine warfare mission areas, enhancing warfighting readiness, and increasing the lethality and tactical proficiency of the Surface Force. You will support the performance analysis of surface ship tactical readiness and operational capability. In this position you will make direct contributions to the enhancement of warfare training. 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...
Oct 27, 2026
Full time
$90,000 - $110,000 yearly
Sigma Defense San Diego, CA
Sigma Defense is seeking a BMD Tactical Operations Subject Matter Expert (SME) to provide support in San Diego, CA. 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. Essential Job Duties (not all-inclusive): Working on-site at TTGP during BMD events (BMDEXs, FST, and LVC events), providing mentorship support onboard or pier side during events, and classroom instructor for BMD courses held by TTGP. Salary Range : $90,000 - $110,000 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...
Oct 20, 2026
Full time
$165,000 - $185,000 yearly
Sigma Defense San Diego, CA
Sigma Defense is seeking a Scrum Master/Site Lead to join our team in San Diego, CA. This position serves as a key connection between team members, technical leadership, program management, and the customer, helping ensure priorities remain aligned, obstacles are addressed quickly, and the team can consistently deliver high-quality capabilities. This role requires someone who is equally comfortable leading a Scrum ceremony, coordinating priorities with the customer, resolving a team-level issue, tracking delivery commitments, and helping technical personnel stay focused on mission objectives. The ideal candidate combines strong leadership, communication, organization, and Scrum facilitation skills with enough technical understanding to effectively support teams working across software development, DevSecOps, cloud services, cybersecurity, infrastructure, networking, and application support. Equal Opportunity Employer/Veterans/Disabled: Sigma Defense Systems is an Equal...