Demo

ISSO/Systems Security Engineer

Bowhead
Dahlgren, VA Full Time
POSTED ON 9/27/2026
AVAILABLE BEFORE 7/28/2027

Overview

ISSO/SYSTEMS SECURITY ENGINEER 

 

Bowhead is seeking a skilled full-time ISSO/Systems Security Engineer to join our team in Dahlgren, VA. The ideal candidate will have a strong background in computer networking concepts and protocols, as well as network security methodologies. The ISSO/Systems Security Engineer will be responsible for identifying and mitigating vulnerabilities in security systems, conducting vulnerability scans, and applying system, network, and operating system hardening techniques.

Responsibilities

Key Responsibilities:

  • Conducting vulnerability scans and recognizing vulnerabilities in security systems.
  • Using DoD network analysis tools to identify vulnerabilities (e.g., ACAS, HBSS, etc.).
  • Conducting application vulnerability assessments.
  • Identifying systemic security issues based on the analysis of vulnerability and configuration data.
  • Sharing meaningful insights about the context of an organization’s threat environment that improve its risk management posture.
  • Applying cybersecurity and privacy principles to organizational requirements (relevant to confidentiality, integrity, availability, authentication, non-repudiation).
  • Troubleshooting and diagnosing cyber defense infrastructure anomalies and working through resolution.
  • Performing impact/risk assessments.

Required Skills:

  • Skill in conducting vulnerability scans and recognizing vulnerabilities in security systems.
  • Skill in using DoD network analysis tools to identify vulnerabilities (e.g., ACAS, HBSS, etc.).
  • Skill in system, network, and OS hardening techniques (e.g., remove unnecessary services, password policies, network segmentation, enable logging, least privilege, etc.).
  • Skill in conducting application vulnerability assessments.
  • Ability to identify systemic security issues based on the analysis of vulnerability and configuration data.
  • Ability to share meaningful insights about the context of an organization’s threat environment that improve its risk management posture.
  • Ability to cybersecurity and privacy principles to organizational requirements (relevant to confidentiality, integrity, availability, authentication, non-repudiation).Tenable Assured Compliance Assessment Solution (ACAS)
  • Trellix Endpoint Security System (ESS), previously known as McAfee Host Based Security System (HBSS)
  • Skill in applying host/network access controls (e.g., access control list).
  • Skill in using Virtual Private Network (VPN) devices and encryption.
  • Skill in securing network communications.
  • Skill in protecting a network against malware. (e.g., NIPS, anti-malware, restrict/prevent external devices, spam filters).
  • Skill in troubleshooting and diagnosing cyber defense infrastructure anomalies and work through resolution.
  • Skill in performing impact/risk assessments.
  • Skill to develop insights about the context of an organization’s threat environment
  • Skill to apply cybersecurity and privacy principles to organizational requirements (relevant to confidentiality, integrity, availability, authentication, non-repudiation).
  • Other duties as assigned 

Qualifications

Required:

  • Bachelor's degree required and five (5 ) or more years of relevant experience.  
  • IAM Level II certification required 
  • Knowledge of computer networking concepts and protocols, and network security methodologies.
  • Knowledge of network security architecture concepts including topology, protocols, components, and principles (e.g., application of defense-in-depth & concept of zero trust).
  • Knowledge of basic system, network, and OS hardening techniques.
  • Knowledge of Intrusion Detection System (IDS)/Intrusion Prevention System (IPS) tools and applications.
  • Knowledge of network protocols such as TCP/IP, Dynamic Host Configuration, Domain Name System (DNS), and directory services.
  • Knowledge of application vulnerabilities.
  • Knowledge of system administration, network, and operating system hardening techniques.
  • Knowledge of system administration concepts for operating systems such as but not limited to Unix/Linux, IOS, Android, and Windows operating systems.
  • Travel may occasionally be required, but rare

Preferred:

  • Knowledge of cyber threats and vulnerabilities.
  • Knowledge of specific operational impacts of cybersecurity lapses.
  • Knowledge of host/network access control mechanisms (e.g., access control list, capabilities list).
  • Knowledge of cybersecurity and privacy principles and organizational requirements (relevant to confidentiality, integrity, availability, authentication, non-repudiation).
  • Knowledge of network traffic analysis methods.
  • Knowledge of Virtual Private Network (VPN) security.
  • Knowledge of transmission records (e.g., Bluetooth, Radio Frequency Identification (RFID), Infrared Networking (IR), Wireless Fidelity (Wi-Fi). paging, cellular, satellite dishes, Voice over Internet Protocol (VoIP)), and jamming techniques that enable transmission of undesirable information, or prevent installed systems from operating correctly.
  • Knowledge of network access, identity, and access management (e.g., public key infrastructure, Oauth, OpenID, SAML, SPML).
  • Knowledge of system and application security threats and vulnerabilities (e.g., buffer overflow, mobile code, cross-site scripting, Procedural Language/Structured Query Language [PL/SQL] and injections, race conditions, covert channel, replay, return-oriented attacks, malicious code).
  • Knowledge of different classes of attacks (e.g., passive, active, insider, close-in, distribution attacks).
  • Knowledge of application security risks.

Targeted salary range is $130,000 to $150,000 annually based on qualifications and experience.

 

Physical Demands:

  • Must be able to lift up to 10 pounds 
  • Must be able to stand and walk for prolonged amounts of time
  • Must be able to twist, bend and squat periodically

SECURITY CLEARANCE REQUIREMENTS: Must be able to obtain a Top Secret clearance may start with a Secret clearance.  US Citizenship is a requirement for Top Secret clearance at this location.

 

#LI-JR1

 

Salary : $130,000 - $150,000

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