Epirus is a high-growth technology company developing software-defined high-power microwave (HPM) systems with devastating counter-electronics effects on modern drone threats. The Epirus Leonidas HPM family of products, empowered by innovations in AI and microelectronics, is human-safe and cost-effective. Distinguishing itself from lasers, Leonidas excels against drone swarms while also bending the cost curve back in DoD's favor - taking drone-defeat costs from millions of dollars per drone to pennies on the dollar.
Job Summary: Epirus is seeking an experienced Senior Information Systems Security Manager (ISSM) to maintain the current classified infrastructure and lead Epirus’ Information Security team’s efforts to obtain Authorizations to Operate (ATO) on future projects. The ISSM will own the classified information system process from start to finish. The ISSM will be required to travel to customer sites or testing facilities as necessary. The ideal candidate is experienced working within the defense industry, has experience bringing multiple systems through the ATO process, and can perform in a fast-moving, startup environment.
Responsibilities:
- Serve as a key cybersecurity stakeholder in projects, security assessments, program proposals, and program direct work
- Act as a manager of the existing systems within the current ATO
- Perform continuous monitoring of current systems
- Build out and maintain compliant, air-gapped systems in support of program and project efforts
- Collaborate with the Facility Security Officer (FSO) to develop and implement a robust IS security education, training, and awareness program
- Travel up to 25% to test sites and customer locations
Basic Qualifications:
- 5+ years of experience as an Information Systems Security Officer (ISSO) or Information Systems Security Manager (ISSM)
- Fully competent in the execution of RMF system requirements
- Currently hold a valid IAM Level III certification (CISSP, GSLC, CISM)
- Active TS/SCI Clearance
- Experience in utilizing security-relevant tools, operating systems (Windows, Linux, etc.), and applications (SCAP, STIG, Nessus) in support of classified programs
- Experience developing security policies required to support Interim Authority to Test (IATT), Authorizations to Connect (ATC), and Authorizations to Operate (ATO) efforts
- Ability to conduct risk assessments and investigations, execute appropriate risk mitigations, and oversee incident response or vulnerabilities promptly and effectively
- This is a hybrid position with 3 days in the office in Torrance, CA
Preferred Skills and Experience:
- Experience with the Defense Counterintelligence and Security Agency (DCSA) Assessment and Authorization Process Manual (DAAPM) and Risk Management Framework (RMF) security processes
ITAR REQUIREMENTS:
- To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR) you must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State. Learn more about the ITAR here.
People are the most important part of Epirus – and always come first. We don’t believe in the word impossible and are always asking “why not” as work to usher in a new paradigm of power efficiency. Our fast-growing team is agile, creative, and innovative. We support a culture of constant learning and sense of belonging among our team members and know that mentorship matters. We embrace diversity, equity and inclusion in the workplace and beyond. To deliver on our mission, we are always looking for problem solvers, changemakers and innovators to join our fast-growing team.
Skills Required
- 5+ years of experience as an Information Systems Security Officer (ISSO) or Information Systems Security Manager (ISSM)
- Fully competent in the execution of RMF system requirements
- Hold a valid IAM Level III certification (CISSP, GSLC, CISM)
- Active TS/SCI clearance
- Experience utilizing security-relevant tools, operating systems (Windows, Linux), and applications (SCAP, STIG, Nessus) in support of classified programs
- Experience developing security policies required to support Interim Authority to Test (IATT), Authorizations to Connect (ATC), and Authorizations to Operate (ATO)
- Ability to conduct risk assessments and investigations, execute risk mitigations, and oversee incident response or vulnerabilities promptly and effectively
- Experience bringing multiple systems through the ATO process
- Experience with the DCSA Assessment and Authorization Process Manual (DAAPM) and RMF security processes
- Willingness/ability to travel up to 25% and work hybrid (3 days in Torrance, CA)
- ITAR eligibility: must be a U.S. citizen, lawful permanent resident, protected individual, or eligible to obtain required U.S. Department of State authorizations
Epirus Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Epirus and has not been reviewed or approved by Epirus.
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Affordable Benefits — Medical coverage is presented as up to 100% employer‑paid on some plans, with dental/vision and mental‑health support included. Bundled wellness access (Calm, gyms) and no‑cost onsite meals further increase perceived total value without added employee expense.
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Leave & Time Off Breadth — Time away is framed as generous, with unlimited PTO and 19 paid holidays including a winter break. Parental leave is also highlighted, signaling broad coverage for different life events.
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Retirement Support — A 401(k) match of 6% is explicitly offered. This is positioned as competitive and contributes meaningful long‑term value.
Epirus Insights
What We Do
Epirus is a high-growth technology company developing solid-state, software-defined directed energy systems that enable unprecedented counter-electronics effects and power management solutions to optimize power efficiency in defense and commercial applications. With a constant emphasis on innovation, we are redefining the future of power to bring tomorrow’s capabilities to life, today. To deliver on our mission, we are always looking for problem solvers, changemakers and innovators to join our fast-growing team. People are the most important part of Epirus – and always come first. We don’t believe in the word impossible and are always asking “why not” as work to usher in a new paradigm of power efficiency. Our fast-growing team is agile, creative, and innovative. We support a culture of constant learning and sense of belonging among our team members and know that mentorship matters. We embrace diversity, equity, and inclusion in the workplace and beyond. Visit our website to learn more. www.epirusinc.com
Why Work With Us
We're a people-first culture that ensures every employee is heard and has the opportunity to grow. At Epirus, we're using cutting edge technology and provide the ability to work with passionate team members. We truly believe that failure is not a setback, but an opportunity. We move fast and build cool things, come join us!
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