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Systems Security Engineer

Frequentis
Columbia, MD Full Time
POSTED ON 10/21/2025 CLOSED ON 3/1/2026

What are the responsibilities and job description for the Systems Security Engineer position at Frequentis?

Job Introduction

Frequentis USA Inc. is dedicated to creating a safer world. With over 75 years of experience, Frequentis understands controllers in safety critical situations encounter new challenges daily. Our mission is to develop and market highly reliable, optimized, custom-tailored, and user centric communication and information systems for mission critical solutions. As an industry leader in voice communication data information systems, we create a safer world through integration, digitalization, and automation while maintaining world class safety standards. We proudly serve many U.S. government agencies including the FAA, DoD, and NASA. Safety as our number one priority pushes us to constantly learn about the ever-changing needs in safety critical environments to deliver innovative solutions.

Key Tasks

  • Develops and actively implements, configures, and manages security measures on computer systems, networks, and our propriety communications applications.
  • Generates system security requirement definitions and analysis and establishes system security design.
  • Assist system architects and systems engineers in the classification and implementation of appropriate information security functionality to ensure solutions meet customer requirements.
  • Creates and reviews technical and process documentation for customer projects (e.g. Risk Management, System Security Plans, Vulnerability Assessments, System Hardening Reports, Contingency Plans, etc).
  • Identifies and mitigates system security threats/risk throughout the program lifecycle. Responds to security escalations.
  • Contributes to the security planning, assessment, risk analysis, risk management, certification and awareness activities for assigned programs.
  • Interfaces with customer IA personnel as the main POC for security topics.
  • Completes system penetration testing and software STIG analysis using DoD approved tools.
  • Develops and follows test procedures to verify system security requirements.
  • Collaborates with internal teams (e.g., program management, hardware & software development, solution architects, test engineering, field engineering, production) for total project success.
  • Ensures adherence to industry standards, regulations, and best practices.

Key Qualifications

  • BS or MS in Information Technology, Information Systems, Computer Engineering or equivalent experience with IT systems security and engineering.
  • 5-14 years’ experience as an Information Systems Security Engineer (ISSE) for Government programs
  • CISSP Certification.
  • Deep understanding of network technology and systems security engineering practices.
  • Experience in identifying, researching, characterizing, and documenting security weaknesses related to operating systems, software applications, firmware, network hardware components, as well as network architecture design and documented policies and procedures.
  • Knowledge of, and practical experience with the NIST Special Publications 800 Series, CNSSI 1253, and DoD 8500.
  • Experience with network technologies and the ability to demonstrate knowledge of network protocols, communications systems and architectures including network analysis tools such as Wireshark.
  • Proficient in RHEL operating system and experience with Windows Server operating system
  • Should have significant hands-on experience implementing security and/or network components, i.e. routers, firewalls, IPS, IDS, etc.
  • Candidates should meet the requirements for a Public Trust Clearance FAA Suitability determination.

Our Values

Frequentis USA is an equal opportunity/affirmative action employer. All qualified applicants will receive consideration for employment without regard to sex, gender identity, sexual orientation, race, color, religion, national origin, disability, protected Veteran status, age, or any other characteristic protected by law.

Around 2,100 employees are committed to creating a safer world with their innovative strength and technology orientation. Our culture is based on a working environment characterized by fairness and trust, mutual respect and appreciation. As an international company, we value this diversity and recruit regardless of age, gender, origin, ethnicity, sexual orientation or religion. We value fair and good working conditions, an optimum work-life-balance and offer all our employees equal development opportunities. In doing so, we focus on long-term working relationships in order to keep the valuable know-how of our employees stable.

Benefits

Benefits: We are committed to supporting our mission through the following employee benefits:

  • Medical, Dental, and Vision Insurance
  • Health Savings Accounts
  • Competitive 401(k) Plan with company match and immediate vesting
  • Employee Life Insurance & AD&D
  • Company-paid Short-Term and Long-Term Disability Insurance
  • Employee Assistance Program
  • Generous holidays, including a full week off from December 25 to January 1
  • PTO that scales with tenure and sick leave
  • Company-sponsored team-building activities to boost morale and productivity.
  • Bonus Plan

TRUST-BASED

MODERN MENTORING TRAININGS

WORKING HOURS

IT-EQUIPMENT PROGRAM

Salary.com Estimation for Systems Security Engineer in Columbia, MD
$85,425 to $103,600
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