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ISSO/Systems Security Engineer
BowheadDahlgren, VA🇺🇸United StatesPosted 14 Aug 2026
Quick Overview
Salary
$130k - $150k/yr
Work Type
Hybrid
Level
Mid Senior
Job Description
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:
Required Skills:
Qualifications
Required:
Preferred:
Targeted salary range is $130,000 to $150,000 annually based on qualifications and experience.
Physical Demands:
SECURITY CLEARANCE REQUIREMENTS: Must be able to maintain a Top Secret clearance. ship is a requirement for Top Secret clearance at this location.
Please note that the salary information is a general guideline only. Bowhead considers factors such as (but not limited to) scope and responsibilities of the position, candidate's work experience, education/training, key skills, internal peer equity, as well as, market and business considerations when extending an offer.
#LI-JR1
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 maintain a Top Secret clearance. ship is a requirement for Top Secret clearance at this location.
Please note that the salary information is a general guideline only. Bowhead considers factors such as (but not limited to) scope and responsibilities of the position, candidate's work experience, education/training, key skills, internal peer equity, as well as, market and business considerations when extending an offer.
#LI-JR1
Skills
PL/SQL
SQL
Encryption
OAuth
SAML
TCP/IP
DNS
Zero Trust
iOS
Android
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