Senior F5 Engineer
kforceEnglewood (NJ)
About the role
Description:
Kforce's client in Englewood, CO is seeking a Senior F5 Engineer to support the design, engineering, and optimization of enterprise application delivery, traffic management, and web application security platforms. This individual will play a key role in maintaining highly available, secure, and high-performing infrastructure across a distributed, cloud-integrated enterprise environment. The Senior F5 Engineer will bring deep hands-on experience with F5 BIG-IP technologies while helping modernize traditional load-balancing and application delivery environments through automation, software-defined networking, and SaaS-based security solutions.
Key Responsibilities:
- Design, configure, administer, and optimize enterprise F5 BIG-IP environments, including LTM, DNS/GTM, and WAF/ASM modules* Maintain the availability, performance, scalability, and resiliency of mission-critical application delivery platforms across hybrid and cloud environments* Develop and implement automated monitoring, alerting, and troubleshooting processes to improve operational visibility and reduce mean time to resolution (MTTR)* Develop, test, and troubleshoot custom F5 iRules using Tcl to support complex traffic management and application delivery requirements* Configure, maintain, and optimize Web Application Firewall (WAF/ASM) policies to strengthen application security and protect enterprise traffic* Manage SSL/TLS configurations, certificate lifecycles, and secure application connectivity* Lead root cause analysis for critical P1/P2 incidents and recurring infrastructure issues, identifying permanent solutions * Drive infrastructure automation initiatives using Python, Ansible, Git, and infrastructure-as-code practices* Support the modernization of traditional F5 BIG-IP environments toward F5 Distributed Cloud and SaaS-based application delivery and security architectures
Requirements:
- Bachelor's degree in Computer Science, Computer Engineering, Information Technology, or a related technical field* 5+ years of experience working in medium-to-large enterprise network or infrastructure environments* Demonstrated hands-on experience administering, engineering, and optimizing enterprise F5 BIG-IP environments Advanced knowledge of F5 BIG-IP technologies, including:* Local Traffic Manager (LTM)* DNS / Global Traffic Manager (GTM)* Web Application Firewall (WAF/ASM)* Load balancing and traffic management* SSL/TLS offloading and certificate management* Disaster recovery and business continuity* Hands-on experience developing and troubleshooting F5 iRules using Tcl* Experience configuring, maintaining, and tuning WAF/ASM security policies* Familiarity with F5 Distributed Cloud and SaaS-based WAF/security solutions* Experience with infrastructure automation and scripting tools, including Python, Ansible, and Git* Strong understanding of networking fundamentals, including TCP/IP, HTTP/HTTPS, SSL/TLS, and DNS* Experience troubleshooting complex network and application delivery issues using packet captures, tcpdump, Wireshark, SSL handshake analysis, and log aggregation tools Job Type ContractCompensation60 - $79
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