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Senior Cryptographic Software Engineer

MANTECH

Salary not specified
Nov 7, 2025
Linthicum Heights, MD, US
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MANTECH seeks a Senior Cryptographic Software Engineer to implement and integrate cryptographic principles into software applications, ensuring secure development practices and evaluating cryptographic implementations.

Requirements

  • Experience and understanding of cryptographic certification processes such as FIPS 140-3 and/or Common Criteria
  • Certified Information Systems Security Professional (CISSP), Certified Ethical Hacker (CEH), or equivalent.
  • Certifications related to cryptographic technologies or Linux systems, such as Linux+ or RHCE.

Responsibilities

  • Implement and integrate cryptographic principles, including symmetric and asymmetric encryption algorithms (e.g., AES, RSA, ECC), into software applications by developing and optimizing low-level system programming and cryptographic algorithm implementations using C and C++.
  • Utilize cryptographic libraries to ensure proper parameterization and secure integration of encryption modes.
  • Manage cryptographic concepts such as block ciphers, key management, encryptors, secure communications, and cryptographic product evaluation.
  • Evaluate cryptographic implementations for correctness, security, performance, key management, hashing, and digital signatures.
  • Design, develop, test, and maintain software applications using Java.
  • Configure, script, and ensure secure development practices within Linux-based operating systems.
  • Design and assess secure network communications by applying expertise in network protocols and security concepts, including TCP/IP, SSL/TLS, and RESTCONF/YANG.

Other

  • Bachelor’s degree in Computer Science, Engineering or Computer Engineering
  • 8+ years of Software development/evaluation experience
  • Must possess a current and active TS/SCI with Polygraph
  • Ability to remain in a stationary position for up to 50% of the time
  • Regular communication with team members, managers, and customers, including presenting technical material as needed