Network Security Engineer

Job Description

This position is not eligible for visa sponsorship, now or in the future. Candidates must be a US Citizen or Green Card Holder

This position is hybrid 3 days per week in our Cincinnati, OH.

Make your mark at one of the biggest names in payments. We’re looking for a Network Security Engineer to join our ever‑evolving Edge & Network Security team and help us unleash the potential of every business.

In this role, you’ll help operate, strengthen, and continuously improve our web application firewall, edge security, and application protection platforms across a global enterprise environment. This is a hands‑on engineering role focused primarily on web application firewalls, edge security, application‑layer controls, bot mitigation, API protection, and traffic inspection.

Our core platforms include Akamai and Cloudflare technologies, including WAF policies, managed and custom rules, bot protection, rate limiting, API security, security analytics, and edge traffic protection.

You’ll support business‑critical applications and services while working with experienced engineers and partner teams. You’ll help onboard applications, implement and tune security controls, investigate false positives, troubleshoot application access issues, and improve the reliability and effectiveness of our security services.

This is an engineering‑first role, with approximately 80% of the time focused on implementation, configuration, tuning, troubleshooting, and operational improvement, and approximately 20% supporting incident mitigation and response.

Participate in a rotating on‑call schedule for incidents affecting WAF, edge security, application protection, or related network security services.

You’ll perform initial investigation and mitigation, engage senior engineers and other support teams when needed, and contribute to post‑incident reviews and corrective actions. You’ll also participate in readiness exercises, operational reviews, and resilience improvements for critical edge and application security services.

Weekdays: 10 am – 10 pm ET (rotates between 4 colleagues)

Weekends: 10 pm Friday – 10 pm Sunday ET (rotates between 7 colleagues)

• Support the operation and continuous improvement of WAF and edge security platforms, with a focus on application, API, and bot protection.
• Configure and tune Akamai, Cloudflare, or similar platforms, including WAF policies, managed and custom rules, rate limiting, bot controls, and security analytics.
• Onboard internet-facing applications and implement appropriate protections, exceptions, and allow/block controls.
• Analyze traffic, logs, and security events to identify threats, configuration issues, false positives, and policy improvement opportunities.
• Troubleshoot WAF blocks, application access, TLS/certificate, DNS, proxy, and other edge security issues.
• Implement and validate changes using established testing, peer‑review, rollback, and change‑management processes.
• Support incident response, maintain operational documentation and runbooks, and collaborate with application, security, network, infrastructure, and vendor teams.

• Bachelor’s degree in cybersecurity, computer science, information technology, networking, or a related field—or equivalent practical experience.
• 3–5 years of experience in network security, application security, edge security, security operations, infrastructure engineering, or a related role.
• Hands‑on experience supporting WAF or application protection technologies, preferably Akamai, Cloudflare, or a comparable WAF/CDN platform.
• Experience with application onboarding, policy implementation, traffic analysis, rule tuning, exception handling, troubleshooting, and false‑positive reduction.
• Working knowledge of TCP/IP, HTTP/S, TLS and certificates, DNS, proxies, load balancing, NAT, routing, and CDN or edge security concepts.
• Ability to analyze logs, HTTP transactions, application behavior, and security events to investigate and resolve technical issues.
• Strong problem‑solving and communication skills, with the ability to work across distributed teams, follow…