Information System Security Engineer at ManTech in USA-DC-Washington
- Company: ManTech
- Location: USA-DC-Washington
- Posted: Sep 17, 2026
- Type: Full-time
- Salary: $91,600.00-$153,800.00
- Experience: 14+ years
Overview
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 Transfo…
Job description
- 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!
- ***This is for a future opportunity***
- MANTECH seeks a motivated, career and customer-oriented Information Systems Security Engineer (ISSE) to join our team in Washington, D.C. This is an onsite position.
Responsibilities
- Identify information protection needs for an IS and Network Environment. Define IS and Network Environment security requirements in accordance with applicable cybersecurity requirements
- Design security architectures for use within the IS and Network Environment. Design and develop cybersecurity-enabled products for use within an IS and Network Environment
- Integrate and/or implement security with Cross Domain Solutions (CDS) for use within an IS and Network Environment
- Develop and implement security designs for new or existing network system(s). Ensure that the design of hardware, operating systems, and software applications adequately address cybersecurity requirements for the IS and Network Environment
- Design, develop, and implement network security measures that provide confidentiality, integrity, availability, authentication, and non-repudiation. Design, develop, and implement specific cybersecurity countermeasures for the IS and Network Environment
- Develop interface specifications for the IS and Network Environment. Develop approaches to mitigate IS and Network Environment vulnerabilities and recommend changes to network or network system components as needed
- Ensure that network system(s) designs support the incorporation of FBI directed cybersecurity vulnerability solutions
Requirements
- Must meet one of the following levels of experience: A high school diploma/GED and 14 + years’ experience, an Associate’s degree and 7 + years’ experience, a Bachelors degree and 5 + years’ experience, or a Master’s and 3 + years’ experience.
- Possessing one or more relevant industry certifications, such as SecurityX / CASP+, CCISO, CGRC/CAP, CISA, CISM, CISSO, CISSP, CISSP-ISSEP, Cloud+, CySA+, FITSP-A, GCSA, GSEC, GSLC, GSNA, PenTest+, Security+, CCNP Enterprise, GMON, CCSP, CISSP-ISSAP, CSSLP, FITSP-D, GCIA, GDSA, or GICSP.
- Familiarity with the use and operation of security tools including: Tenable Nessus and/or Security Center, IBM Guardium, HP WeblInspect, Network Mapper (NMAP), and/or similar applications.
- Working knowledge of the National Institute of Standards and Technology (NIST) Risk Management Framework (RMF) and ATO processes.
- Must have a current/active TS/SCI.
- Selected candidate must be willing to undergo a Polygraph.
- Bachelor's or Master's Degree in Computer Science, Cybersecurity, or other cyber discipline.
Skills
Required
- SecurityX / CASP+
- CCISO
- CGRC/CAP
- CISA
- CISM
- CISSO
- CISSP
- CISSP-ISSEP
- Cloud+
- CySA+
- FITSP-A
- GCSA
Benefits
- The projected compensation range for this position is $91,600.00-$153,800.00. 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.