Remote Senior Information Security Engineer – Web & Edge

Optum; Plymouth (MN); Remote; USD 92,000 - 164,000; Full time

Job summary

Optum is seeking a Senior Information Security Engineer to join our Security Operations Engineering team. You will design, deploy, and maintain enterprise security for web applications across F5 BIG-IP and Cloudflare, safeguarding against threats and ensuring reliable traffic management.

You will collaborate with development, network, and cloud teams, mentor junior engineers, and document runbooks and DR procedures to support resilient, secure delivery across our platforms.

Qualifications

• 5+ years of experience in information security engineering, network security, or application traffic management.
• 3+ years of hands-on experience designing, configuring, and managing F5 BIG-IP modules (e.g., LTM, ASM/WAF, APM, or DNS/GTM).
• 2+ years of experience analyzing application layer protocols (HTTP/HTTPS, SSL/TLS, DNS) and web application security vulnerabilities.

Responsibilities

• Design, deploy, configure, and maintain F5 BIG-IP architectures (LTM, ASM/WAF, APM, DNS/GTM) and Cloudflare edge security solutions.
• Manage and optimize Web Application Firewall (WAF) policies, Cloudflare security rules, and DDoS protection mechanisms to safeguard web applications.
• Monitor network traffic, investigate security incidents, and execute technical mitigation for web application threats and access issues.
• Leverage enterprise‑approved AI tools to streamline workflows, automate repetitive tasks, analyze incident data, and drive continuous operational improvement.
• Evaluate emerging security trends, threats, and traffic management technologies to inform solution design and strategic technical innovation.
• Collaborate with application development, network, and cloud infrastructure teams to integrate traffic management and security policies into architecture pipelines.
• Maintain comprehensive technical documentation, operational runbooks, and disaster recovery procedures for F5 and Cloudflare deployments.
• Provide technical guidance, troubleshooting support, and operational mentorship to junior security engineers and cross‑functional partners.

Skills

Information security engineering

F5 BIG-IP

HTTP/HTTPS

SSL/TLS

DNS

Education

Bachelor's degree in CS/IT/Cybersecurity

Tools

Cloudflare

Python

PowerShell

iRules

CI/CD tooling

Job description

Optum is seeking a Senior Information Security Engineer to join our Security Operations Engineering team. You will design, deploy, and maintain enterprise security for web applications across F5 BIG-IP and Cloudflare, safeguarding against threats and ensuring reliable traffic management.

You will collaborate with development, network, and cloud teams, mentor junior engineers, and document runbooks and DR procedures to support resilient, secure delivery across our platforms.