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Web Application Firewall (WAF) Support Specialist

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 Web Application Firewall (WAF) Support Specialist in Charleston, SC, Stuttgart, Germany; or Pearl City, HI!

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:

• 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 CNDSP-IR compliant certification

Experience:

• 3+ years of direct experience with F5 ASM or comparable WAF technologies
• Deep 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

Preferred Qualifications:

• 1–2 years experience with incident response or threat hunting in enterprise or DoD settings
• 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:

In addition to a great culture, Sentar not only fosters an inclusive work environment but also offers an extensive benefits package designed to cater to the well-being of its employees and their families.

• 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, 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 ...@sentar.com . Please indicate the specifics of the assistance needed. Thank you for considering Sentar in your employment search.

Build, Innovate, Secure Your Career at Sentar.