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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 computer systems and standard office equipment

  • Regular communication with team members, managers, and customers, including presenting technical material as needed


The projected compensation range for this position is $138,700.00-$231,400.00. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories.  In addition, MANTECH invests in its employees beyond just compensation.  MANTECH’s benefits offerings include, dependent upon position, Health Insurance, Life Insurance, Paid Time Off, Holiday Pay, short-term and long-term Disability, Retirement and Savings, Learning and Development opportunities, wellness programs as well as other optional benefit elections.

MANTECH International Corporation considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation.

If you need a reasonable accommodation to apply for a position with MANTECH, please email us at careers@mantech.com and provide your name and contact information.