Senior Crypto Security Engineer

Science Applications International Corp

El Segundo, CA

JOB DETAILS
SALARY
$160,001–$200,000 Per Year
SKILLS
Atlassian JIRA, Best Practices, CISSP - Certified Information Systems Security Professional, Campaigns, Communication Skills, Communication Systems, Computer Firmware, Computer Science, Cross-Domain Solutions (CDS), Cryptography, Customer Relations, Documentation, Emerging Technology, Government Contracts, Information Technology & Information Systems, Integration Testing, Intelligence Community, Internet Security, Leadership, Mathematics, Mentoring, Microsoft Excel, Microsoft Office, Microsoft PowerPoint, Microsoft Product Family, Microsoft Word, Military, Military Satellite Communications (MILSATCOM), Multiplatform/Cross-Platform, National Security Agency (NSA), Physics, Presentation/Verbal Skills, Process Management, Professional Services, Requirements Management, Requirements Validation/Verification, Satellite Communications, Sensitive Compartmented Information (SCI), System Integration (SI), System Lifecycle, System Operations, Systems Engineering, Team Player, Technical Delivery, Technical Leadership, Technical Writing, Technical/Engineering Design, Test Plan/Schedule, Testability, Testing, Top Secret Clearance, Traceability, Trade Studies, United States Department of Defense (DoD), Validation Testing, Work From Home, Writing Skills
LOCATION
El Segundo, CA
POSTED
9 days ago

Senior Crypto Security Engineer

Job ID: 2614641

Location: El Segundo, CA, United States

Date Posted: Jul 17, 2026

Category: Engineering and Sciences

Subcategory: Systems Engineer

Schedule: Full-Time

Shift: Day Job

Travel: Yes - 10% of the time

Minimum Clearance Required: TS/SCI

Clearance Level Must Be Able to Obtain: TS/SCI

Potential for Remote Work: On-Site

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Job Description

Description

JOB DESCRIPTION:

SAIC is seeking a motivated and experienced Cryptography Subject Matter Expert to join our team in El Segundo, CA. CA. SAIC is sub-contractor on the Military Satellite Communications (MILSATCOM) Systems Engineering, Integration and Test (MSEIT) contract.

The MSEIT effort provides leading-edge Systems Engineering & Integration (SE&I) for the United States Space Force's (USSF) Space Systems Command (SSC). We acquire state-of-the-art Military and Commercial Satellite Communications (SATCOM) systems, providing global, secure, survivable, and protected communications for our nation's warfighters. We seek technical individuals who will thrive in a highly collaborative work environment of small teams, using the most modern tools and methodologies to tackle the challenges of integrating complex space and ground communications systems.

Key Responsibilities:

  • Provide technical expertise in the development, integration, and delivery of both space and ground cryptographic units, ensuring all solutions align with mission objectives and system requirements.
  • Lead spacecraft cryptographic unit trade studies, evaluating candidate solutions against requirements, interface constraints, environmental considerations, performance criteria, and testability. Deliver clear, data‑driven recommendations to program leadership and customers.
  • Oversee the technical design, interface definition, development, and delivery of needed encryption units, including hardware and firmware. Ensure compatibility with subsystems and compliance with mission, cybersecurity, and interface standards.
  • Manage technical design, interface definition, development, and delivery of needed encryption units, ensuring proper integration with ground systems, mission operations, and secure architectures.
  • Support and oversee all testing activities for encryption units including dry runs and SVT. Ensure successful completion of verification and validation campaigns by developing or reviewing test plans, procedures, and reports. Participate in TRRs, dry run, SVTs, participate in CDRL review, address anomalies, and ensure full requirement traceability.
  • Provide supplemental support for Protected Key Management Architecture (PKMA) including secure key management processes, documentation, and architecture alignment.
  • Build and maintain strong, collaborative relationships with government customers, contractors, subcontractors, and FFRDC partners. Represent the crypto engineering function in design reviews, technical interchange meetings, and program‑level forums.
  • Lead and mentor engineers (junior to mid‑level), including task assignment, technical reviews, and professional development.
  • Oversee crypto lifecycle management. Manage technical scope, priorities, and dependencies for cryptographic tasks within program schedules and constraints.
  • Establish and enforce cryptographic standards and best practices across programs and platforms.

Qualifications

Required:

  • An active TS/SCI is required for this position
  • Bachelors degree
  • Understanding of the discipline and practice of Systems Engineering throughout the system lifecycle phases of concept, development, production, operations, and sustainment
  • 15+ years' experience with systems engineering, which may include crypto, cyber security, requirements development, verification, integration, and test
  • 10+ years' experience with crypto, NSA certification processes, and Key Management processes
  • 5+ years' experience with military or DoD or Intelligence Community space and ground
  • Proficient in Microsoft Office products, such as Excel, Word, and PowerPoint
  • Possess strong oral and written communication and presentation skills; able to author final-version deliverable technical documents and reports

Desired:

  • Bachelors degree in technical field, such as engineering, mathematics, physics, information systems, information technology, or computer science
  • Masters degree
  • Familiarity with Jira and Confluence
  • Experience with NSA's Key Management Infrastructure (KMI)
  • Experience with HAIPEs and cross-domain solutions (CDS)
  • Certifications, such as CISSP, SANS, CEH, INCOSE CSEP or ESEP, OCSMP (MBSE)

Target salary range: $160,001 - $200,000. The estimate displayed represents the typical salary range for this position based on experience and other factors.

Overview

SAIC accepts applications on an ongoing basis and there is no deadline.

SAIC is a premier mission integrator focused on advancing the power of technology and innovation to serve and protect our world. Our robust portfolio of offerings across the defense, space, intelligence, and civilian markets includes secure high-end solutions in mission IT, enterprise IT, engineering services, and professional services. We integrate emerging technology, rapidly and securely, into mission critical operations that modernize and enable critical national imperatives.

We are approximately 23,000 strong; driven by mission, united by purpose, and inspired by opportunities. SAIC is an Equal Opportunity Employer. Headquartered in Reston, Virginia, SAIC has annual revenues of approximately $7.3 billion. For more information, visit saic.com. For ongoing news, please visit our newsroom.

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About the Company

S

Science Applications International Corp

SAIC is a premier Fortune 500® technology integrator driving our nation's digital transformation. Our robust portfolio of offerings across the defense, space, civilian, and intelligence markets includes secure high-end solutions in engineering, IT modernization, and mission solutions. Using our expertise and understanding of existing and emerging technologies, we integrate the best components from our own portfolio and our partner ecosystem to deliver innovative, effective, and efficient solutions that are critical to achieving our customers' missions. We are a team of 26,000 strong driven by mission, united purpose, and inspired by opportunity. Headquartered in Reston, Virginia, SAIC has annual revenues of approximately $7.1 billion. For more information, visit saic.com.
COMPANY SIZE
10,000 employees or more
INDUSTRY
Computer/IT Services
FOUNDED
2013
WEBSITE
https://jobs.saic.com/