Network Security Engineer

General information

Requisition # R60019 Locations USA-IN-Crane Posting Date 04/23/2025 Security Clearance Required Interim Secret Remote Type Hybrid Time Type Full time

Description & Requirements

Shape the future of defense with ManTech! Join a team dedicated to safeguarding our nation through advanced tech and innovative solutions. Since 1968, we’ve been a trusted partner to the Department of Defense, delivering cutting-edge projects that make a real impact. Dive into exciting opportunities in Cybersecurity, IT, Data Analytics and more. Propel your career forward and be part of something extraordinary. Your journey starts now—protect and innovate with ManTech!

ManTech seeks a motivated, career and customer-oriented Network Security Engineer to join our team working in Crane, IN. This is a hybrid position requiring 2-3 day a week onsite.

Responsibilities include but are not limited to:

• Maintain Cybersecurity tools systems residing on the NSWC Crane networks.

• Take appropriate measures to respond to known and possible network attacks in accordance with applicable DOD policies, directives and instructions.

• Utilize Cyber Risk Modeling software and Vulnerability Assessment tools to develop and recommend internal procedures for handling network related incidents and protecting NSWC Crane networks.

• Archive and audit security event logs

• Ensure the installation and support of Security Information and Event Management tools including SPLUNK to archive and review system audit logs and all other pertinent log files and create dashboards that will support incident response activities.

• Implement measures to prevent unauthorized software from being installed and executed on NSWC Crane systems.

• Report, mitigate and/or resolve all classified security incidents (e.g. data spills) that impact NSWC Crane networks within time constraints identified by applicable directive.

• Deploy and maintain data encryption methods, including but not limited to Bitlocker, as security protection method for inactive data or data at rest.

Minimum Qualifications:

• 3+ years of experience performing network security duties and responsibilities

• Bachelors of Science in any discipline OR Associates of Science with 4 additional years of experience OR High School Diploma with 6 additional years of experience

• One of the following: Security+, GICSP, or equivalent DoD 8570.01 IAT-2 certification

Preferred Qualifications:

• Knowledge of IT Security tools such as Nessus

• Experience as a Splunk Dashboard Developer

Clearance Requirements:

• Must be a U.S. Citizen and have the ability to obtain and maintain a U.S. government Secret Security Clearance

Physical Requirements:

• The person in this position must be able to remain in a stationary position 50% of the time.

• Occasionally move about inside the office to access file cabinets, office machinery, or to communicate with co-workers, management, and customers, via email, phone, and or virtual communication, which may involve delivering presentations.

• Constantly operates a computer and other office productivity machinery, such as a calculator, copy machine and computer printer.

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.