Senior Cryptographic Software Engineer

General information

Requisition # R64149 Locations USA-MD-Linthicum Heights Posting Date 11/07/2025 Security Clearance Required TS/SCI w/ Poly Remote Type Onsite Time Type Full time

Description & Requirements

Unlock the secrets of intelligence with MANTECH! Join a dynamic team at the forefront of national security, providing advanced solutions to government intelligence agencies. Since 1968, we’ve been solving the toughest challenges with groundbreaking tech. Explore thrilling projects in Digital Transformation, Cybersecurity, IT, Data Analytics and Software Development. Elevate your career and make a difference. Your adventure begins now—unleash your potential with MANTECH!

MANTECH seeks a motivated, career and customer-oriented Senior Cryptographic Software Engineer to join our team in Linthicum Heights, MD. 

Responsibilities include but are not limited to:

• 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.

• Automate processes and create scripts using Python to enhance system functionality and efficiency. 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.

• Apply secure coding practices, mitigate vulnerabilities, and oversee secure software lifecycle management.

Minimum Qualifications:

• Bachelor’s degree in Computer Science, Engineering or Computer Engineering

• 8+ years of Software development/evaluation experience

• Experience and understanding of cryptographic certification processes such as FIPS 140-3 and/or Common Criteria

Preferred Qualifications:

• 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.

Security Clearance Requirements:

• Must possess a current and active TS/SCI with Polygraph

Physical Requirements

• Ability to remain in a stationary position for up to 50% of the time

• Frequent use of com