GDH · 1 day ago
Senior F5 Engineer
St Louis, MO
Full-time
Onsite
Senior Level, Lead/Staff
$100/hr - $110/hr
8+ years expGDH is seeking a Senior F5 Engineer to ensure the high availability, security, and scalability of mission-critical applications. The role involves leading application delivery projects, optimizing cloud architectures, and driving automation initiatives.
ConsultingEmploymentStaffing Agency
Responsibilities
Design, implement, and fine-tune F5 BIG-IP solutions, including LTM, GTM/DNS, ASM, and APM modules, across both production and development environments, ensuring optimal performance and security
Lead the automation of configuration management and deployment processes using tools such as Python, Ansible, and Terraform, promoting consistency and operational excellence
Develop custom iRules and iApps to support advanced application delivery logic, integrations, and security policies tailored to enterprise needs
Collaborate with security teams to enforce policies, manage SSL certificates, and integrate F5 appliances with identity and access management systems such as Okta and Azure AD
Troubleshoot and resolve complex Layer 4–7 traffic and application issues utilizing F5 diagnostics, packet captures, and log analysis
Integrate F5 solutions within hybrid and multi-cloud environments, including AWS, Azure, and GCP, aligning with company cloud strategies
Manage the lifecycle of F5 devices through firmware updates, patches, hardware refreshes, and performance tuning
Create comprehensive documentation, runbooks, and operational standards to support global support teams and ensure continuous operational stability
Mentor and guide junior engineers, sharing best practices in automation, security, and application delivery
Qualification
Required
Bachelor's degree in Computer Science, Information Technology, or a related field; equivalent practical experience will also be considered
8+ years of hands-on experience managing and engineering F5 BIG-IP systems within large enterprise settings
Expertise in F5 modules: LTM, GTM/DNS, ASM, and APM
Strong scripting and automation skills with Python, Bash, Ansible, or similar tools
Deep understanding of networking protocols such as TCP/IP, HTTP/S, DNS, SSL, VLANs, and routing
Proven experience with integrating F5 solutions into cloud environments (AWS, Azure, GCP) and other proxy solutions
Excellent problem-solving skills to troubleshoot multi-layer traffic and application delivery challenges
Effective communicator with stellar documentation skills, comfortable working within a global, cross-functional team
Preferred
Certification as an F5 Certified Technology Specialist (LTM, ASM, APM, or GTM)
Knowledge of Zero Trust architecture and API gateway integrations
Familiarity with Kubernetes ingress controllers, NGINX+, and other ADC technologies
Experience supporting manufacturing or engineering workloads in high-availability environments
Previous engagement with Fortune 500 or semiconductor enterprises is a plus
Company
GDH
GDH is consulting staffing firm that specializes in providing IT engineering-based candidates to commercial and government sectors.
501-1000 employees
H1B Sponsorship
GDH has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (1)
2023 (4)
2022 (2)
2021 (2)
2020 (1)
Funding
Current Stage
Late StageLeadership Team
Blaine Caples
Chief Revenue Officer (CRO)
Recent News
Bangkok Post
2025-10-22
2025-04-09
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