Enterprise Crypto Security Engineer

Modern Technology Solutions Inc•El Segundo, CA

17h•$136,000 - $186,000•Onsite

About The Position

Modern Technology Solutions, Inc. (MTSI) is seeking an experienced Enterprise Crypto Security Engineer to join the MSEIT effort in El Segundo, California, or Colorado Springs, Colorado. The MSEIT effort provides Systems Engineering & Integration (SE&I) for the United States Space Force’s Space Systems Command, supporting the acquisition of military and commercial satellite communications systems that provide secure, survivable, and protected communications. The role provides technical leadership for the development, integration, testing, delivery, and lifecycle management of spacecraft and ground cryptographic units. It includes evaluating candidate solutions, defining technical designs and interfaces, supporting secure key management architecture, and ensuring compatibility with systems and compliance with mission, cybersecurity, and interface requirements. The engineer will work collaboratively with government customers and industry partners, represent the crypto function in reviews and program forums, and lead and mentor junior- to mid-level engineers. The position is on-site, with travel about once monthly and standard working hours. An active TS/SCI clearance and a bachelor’s degree are required. The stated annual pay range is $149,000–$186,000 in California and $136,000–$170,000 in Colorado; actual base pay may vary. MTSI offers medical, financial, and other benefits, dependent on the position offered.

Requirements

Active TS/SCI clearance.
Bachelor’s degree.
Understanding of systems engineering throughout concept, development, production, operations, and sustainment lifecycle phases.
At least 7 years of systems engineering experience, which may include crypto, cybersecurity, requirements development, verification, integration, and test.
At least 7 years of experience with crypto, NSA certification processes, and key management processes.
At least 5 years of experience with military, DoD, or Intelligence Community space and ground systems.
Proficiency with Microsoft Office products, including Excel, Word, and PowerPoint.
Strong oral and written communication and presentation skills, including the ability to author final-version technical documents and reports.

Nice To Haves

Bachelor’s degree in a technical field such as engineering, mathematics, physics, information systems, information technology, or computer science.
Master’s degree in a technical field such as engineering, mathematics, physics, information systems, information technology, or computer science.
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, or OCSMP (MBSE).

Responsibilities

Provide technical expertise in developing, integrating, and delivering space and ground cryptographic units aligned with mission objectives and system requirements.
Lead spacecraft cryptographic unit trade studies, assess candidate solutions against requirements and constraints, and present data-driven recommendations to program leadership and customers.
Oversee technical design, interface definition, development, and delivery of encryption units, including hardware and firmware, ensuring subsystem compatibility and compliance with mission, cybersecurity, and interface standards.
Manage the technical design and integration of encryption units with ground systems, mission operations, and secure architectures.
Support and oversee encryption-unit testing, including dry runs and SVT; develop or review test plans, procedures, and reports; participate in TRRs, CDRL reviews, and SVTs; address anomalies and ensure requirement traceability.
Provide supplemental support for Protected Key Management Architecture (PKMA), including secure key management processes, documentation, and architecture alignment.
Build and maintain 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 junior- to mid-level engineers through task assignment, technical reviews, and professional development.
Oversee crypto lifecycle management and manage technical scope, priorities, and dependencies within program schedules and constraints.
Establish and enforce cryptographic standards and best practices across programs and platforms.