Cyber Network Defense Analyst; CNDA

Sentar is dedicated to developing the critical talent that the connected world demands to create solutions to address the convergence of cybersecurity, intelligence, analytics, and systems engineering. We invite you to join the small business team where you can build, innovate, and secure your career.

Sentar is seeking a highly skilled Cyber Network Defense Analyst (CNDA) to join our team. The CNDA will be responsible for continuous network security monitoring, intrusion detection, and incident response actions. This role requires an individual with strong technical knowledge and experience in securing network infrastructure against known vulnerabilities, analyzing security incidents, and effectively communicating with internal and external stakeholders.

• Continuously monitor network activity to detect and respond to potential security incidents
• Conduct intrusion detection and incident response activities
• Analyze correlated log data to identify potential threats or anomalies
• Develop and implement custom Snort rules to enhance network intrusion detection capabilities
• Recognize and differentiate between legitimate network activity and malicious intrusions or compromises
• Analyze event logs and other relevant data to investigate successful intrusions and compromised systems
• Communicate effectively with internal teams and external partners across various levels
• Secure network gear by implementing appropriate measures to mitigate known vulnerabilities
• Correlate forensic findings with network events to develop detailed intrusion narratives
• Conduct forensic triage, analyzing the scope and potential impact of incidents
• Collect, process, preserve, and analyze computer‑related evidence
• Collaborate with government and customer personnel to validate and investigate security alerts
• Document and track incident analysis through resolution, providing detailed reports and findings

• Proficiency in a wide array of network and information security tools
• Strong understanding of modern computer systems, client/server, LAN/WAN, and network management/monitoring concepts
• Ability to analyze data across multiple platforms (traditional networks, cloud, IoT)
• Experience securing network hardware (routers, switches, servers, etc.) against vulnerabilities
• Knowledge of intrusion detection systems, firewalls, and network logs
• Ability to analyze and interpret logs to identify intrusions and distinguish between false positives
• Experience with network forensics, vulnerability analysis, penetration testing, and computer forensics

• Clearance Level: TS/SCI with active poly
• Education and experience:
  
  10 years of experience with an Associate, 8 years with a Bachelor, 6 years with a Master, 4 years with a Doctorate

• Relevant experience in network/system administration, vulnerability analysis, penetration testing, computer forensics, or military cyber defense training
• Experience with cloud environments and automation tools to support cyber defense operations
• Strong analytical skills to assess network vulnerabilities and propose mitigation strategies
• Excellent verbal and written communication skills to share findings with stakeholders

• Certified Ethical Hacker (CEH)
• Certified Information Systems Security Professional (CISSP)
• CompTIA Cybersecurity Analyst (CySA+)
• Offensive Security Certified Professional (OSCP)

• Voluntary Medical, Dental, Vision, with Health Savings or Flexible Spending Plan options
• Voluntary Life, Critical Illness, Accident, and Long Term Care insurance options
• Group Term Life, Short-Term and Long-Term Disability is provided by Sentar to all qualifying employees
• Generous 401(k) match
• Competitive PTO plan that graduates quickly with years of service
• Other leave programs; holiday schedule along with bereavement, maternity, jury and military duty

Sentar is an affirmative action and equal opportunity employer M/F/Vets/Persons with Disabilities.

We want you to build your career at Sentar, so if you are an individual with a disability and require a reasonable workplace accommodation applying for a job or at any point in the employment process, contact the Recruiting Manager at  Please indicate the specifics of the assistance needed. Thank you for considering Sentar in your employment search.

Build, Innovate, Secure Your Career at Sentar.