Sentar is seeking a Web Application Firewall (WAF) Support Specialist in Charleston, SC!Role Description:The Web Application Firewall (WAF) Support Specialist is responsible for managing and evolving application-layer security controls using F5 Application Security Manager (ASM) to support DoD cybersecurity initiatives. The role supports F5 WAF policy tuning, site-specific request handling, and enforcement of application security controls across globally dispersed defense networks. This specialist will directly contribute to incident response efforts and coordinate with Cloud, Gateway, and Site Teams to ensure high-performing and effective web protection strategies.
Responsibilities:
- Primary responsibility will be issuing Firewall Acceptances - based on various customer requests
- Web Application Firewall Policy Development
- Develop, tune, and maintain WAF policies using F5 ASM Coordinate deployments and policy changes with cloud architects and local site engineers
- Support proactive tuning of policies based on learning mode analysis and stakeholder feedback
- Site Coordination & Access Management
- Fulfill block/unblock requests; provide technical justification for negative determinations
- Collaborate with subscriber sites to validate false positives and refine rule sets
- Support secure onboarding of new applications into protected environments
- Threat Support & Surge Response
- Participate in incident response surges and assist threat hunting efforts
- Align policy updates with adversary TTPs and emerging vulnerability trends
- Provide input to detection engineering and mitigation teams
Qualifications:Clearance Level: Secret (upgrade to TS/SCI required)
Education: Bachelor's degree and min 6 years of overall technical experience or 10 years of overall technical experience without a a degree
Certifications: DoD 8570 IAT Level II and GCIH, CEH or CySA+
Experience:- Experience with firewalls
- Experience monitoring network traffic
- Understanding of OWASP Top 10, HTTP/HTTPS protocols, and common web exploits
- Familiarity with incident response workflows and cyber threat mitigation
- Experience supporting DoD cybersecurity or network defense environments
- Experience with Management of Controls and/or Security of an Application
Preferred Qualifications:- 1-2 years experience with incident response or threat hunting in enterprise or DoD settings
- Experience with F5 firewalls
- Strong verbal and written communication skills for customer interactions and technical documentation
- Understanding of network-level protocol analysis and secure web architecture
- Prior experience supporting remote site deployments or global operations
Benefits at Sentar: Our unique ownership model attracts top talent, giving employees the freedom to take initiative and drive meaningful improvements. In addition to cultivating a thriving and inclusive work environment, Sentar offers an extensive benefits package designed to support the well-being of employees and their families. Employee ownership is the foundation of our culture, promoting participation, teamwork, and accountability while ensuring long-term financial security and a commitment to excellence.
- 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
- Mental health awareness programs
- Tuition reimbursement
- Professional development reimbursement
- Recognition and Awards programs
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