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CACI · St. Louis, MO · posted Nov 4, 2026

Crypto Engineer

$75K to $158K a year

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The role

Job Title: Crypto Engineer Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI Employee Type: Regular Percentage of Travel Required: Up to 10% Type of Travel: Local * * * The Opportunity Team CACI has an exciting and challenging opportunity available for a Crypto Engineer. You will support an Intelligence Community customer’s wide-area (WAN), local-area (LAN) and campus-area (CAN) networks across multiple security domains.

Focus will be on preforming COMSEC, cryptologic duties to include operation and maintenance of encryption devices. Experience in complex telecommunications applications involving all phases of telecommunications network design, implementation, and analysis. Demonstrated knowledge in communications security for monitoring, operating and maintaining cryptographic devices. Performs research, requirements analysis, design, installation, troubleshooting, and support of local- and wide-area network hardware, software and applications.

Can install and configure WAN and LAN hardware to include cryptographic, voice, video, and data cable systems. Responsibilities Preform Account Management, Custodian Duties and Encryption device configurations and maintenance. Maintain multiple Secure Communication devices across the Enterprise. Will have experience with the following encryption devices: - General Dynamics family: KG175D, KG175F, KG175G and KG175X - L-3 Family: KG245A and KG245X - Viasat Family: KG250, KG250X, KG255X and KG142 Will have experience with the following encryption device managers: - General Dynamics GEM ONE - L-3 Common HAIPE Manager (CHM) - VIASAT VINE System maintenance, monitoring and installation of multiple WAN/LAN environments encompassing multiple specializations, platforms and technologies.

Troubleshoot and resolve network media and components. Monitor health and performance of the communications security services including hardware and management software. Qualifications Required: Active TS/SCI security clearance (willing and able to obtain a polygraph) Bachelor’s degree in computer science or related field Minimum 5 years of related experience DOD 8570 IAT Level II certification (Security+) Ability to work independently with little direction and guidance.

Ability to work weekends and evening hours as needed. Excellent writing and communication skills, including the ability to develop analytical documents and present oral presentations Ability to work weekends and evening hours as needed. Excellent writing and communication skills, including the ability to develop analytical documents and present oral presentations to senior/executive management. Proficient is MS Office suite – Visio, Word, Excel, PowerPoint, and Project Desired: JNCIA (Juniper Networks) TCP/IP Networks CISCO CCNP, CCVP, CCNA or CCDP ITIL v3 Foundations ISC2 CISSP - What You Can Expect: A culture of integrity.

At CACI, we place character and innovation at the center of everything we do. As a valued team member, you’ll be part of a high-performing group dedicated to our customer’s missions and driven by a higher purpose – to ensure the safety of our nation. An environment of trust. CACI values the unique contributions that every employee brings to our company and our customers - every day. You’ll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality.

A focus on continuous growth. Together, we will advance our nation's most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground — in your career and in our legacy. Pay Range : There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications.

Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits.

The proposed salary range for this position is: $75,200-$158,100 CACI is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any other protected characteristic.

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