Job SummaryWe are looking for a Network SRE with a "reliability mindset" to join our infrastructure team. It is a highly specialized, hands-on engineering position focused entirely on application delivery and load balancing infrastructure.
You will effectively function as our resident Load Balancing Engineer, maintaining and expanding our high-performance traffic management architecture using primarily F5 equipment. As a Senior Network SRE, you will also help us transition from manual configurations to automated, resilient, and observable network operations, particularly regarding VIP provisioning and certificate lifecycles.
Responsibilities- Core Engineering: Configure, deploy, and troubleshoot load balancing infrastructure, focusing heavily on F5 BIG-IP Local Traffic Manager (LTM) and Global Traffic Manager (GTM/DNS).
- Incident Response: Act as the first line of defense for complex application delivery issues. Investigate VIP health, traffic routing anomalies, SSL/TLS handshake failures, and latency issues using a blameless root-cause analysis approach.
- Reliability & Automation: Move away from manual changes. Help build and run Python scripts, Ansible playbooks, or API-driven workflows to automate VIP creation, pool management, and network auditing.
- Observability: Improve our "eyes on the network" by tuning monitoring tools and F5 telemetry to detect traffic issues before they impact end users.
- Maintenance: Plan and execute load balancer maintenance windows (code upgrades, hardware replacements, certificate renewals) with a focus on zero downtime.
- The Stack
- Primary Vendor: F5 Networks (BIG-IP, TMOS)
- Secondary Vendor: Cisco (Nexus and Catalyst environments)
- Core Technologies: LTM, GTM/DNS, SSL/TLS Offloading, HTTP/HTTPS, TCP/UDP
- Automation: Python, Ansible, REST APIs, Git, AS3
Qualifications- Bachelor's Degree or equivalent experience
- 5+ years' of relevant experience
- F5 Fluency: Strong hands-on experience with F5 BIG-IP/BIG-IQ infrastructure. You must be comfortable navigating both the GUI and tmsh command-line interface, managing Virtual Servers, Pools, Profiles, and iRules.
- Application Delivery Fundamentals: Deep understanding of the TCP/IP stack, HTTP/HTTPS protocol behaviors, DNS resolution, and SSL/TLS certificate management.
- Troubleshooting Logic: Ability to trace a packet from client to server and identify where it drops. You understand ping, traceroute, and are highly proficient with tcpdump/Wireshark and F5 logging.
- Linux/Unix Literacy: Comfortable working in a Linux shell environment.
Nice-to-Have (Bonus Points):- Cisco Experience: Familiarity with Cisco routing and switching (particularly Nexus infrastructure) to understand the broader network context.
- SRE/DevOps Skills: Scripting in Python or experience automating load balancer configurations via REST APIs or other automation frameworks.
- Certifications: F5 Certified BIG-IP Administrator (F5-CA) or Technical Specialist (F5-CTS), or equivalent real-world experience.
Pay is competitive and based on a number of job-related factors, including skills and experience. The starting pay rate/range at time of hire for this position in the posted location is $100,246.00 - $164,689.00 / year. The rate/range provided herein is the anticipated pay at the time of hire and does not reflect future job opportunity.
We appreciate your interest in this opportunity. Applicants must be authorized to work for ANY employer in the U.S. Please note that at this time, we do not provide visa sponsorship for employment.
