F5 · 5 hours ago
Site Reliability Engineer III– Networking
San Jose
Full-time
Hybrid
Senior Level
$150K/yr - $224K/yr
5+ years expF5 is dedicated to creating a better digital world by empowering organizations to secure and run applications effectively. They are seeking an experienced Site Reliability Engineer III focused on networking to design, build, and operate critical network infrastructure across cloud and on-prem environments, ensuring reliability, scalability, and security.
SaaSConsumer GoodsConsumer ElectronicsSecurityVirtualization
Responsibilities
Design and maintain core network infrastructure across cloud, data center, and hybrid environments
Implement and optimize network automation to reduce manual operations and improve consistency
Develop and maintain network observability including metrics, logs, tracing, and alerting for network‑centric systems
Lead incident response for network‑related issues and drive root‑cause analysis and long‑term remediation
Collaborate with SRE, security, and platform teams to ensure network reliability aligns with service needs
Manage and evolve load balancing, routing, and traffic management for high‑availability systems
Define and enforce network reliability standards including SLOs, SLIs, and error budgets
Harden network security through segmentation, policy enforcement, and best‑practice configurations
Support capacity planning and performance tuning for network‑heavy workloads
Mentor junior engineers and contribute to a culture of operational excellence
Qualification
Required
5–8 years of experience in SRE, network engineering, or infrastructure roles with production ownership
Deep understanding of networking fundamentals including TCP/IP, DNS, BGP, OSPF, VLANs, and firewalls
Hands‑on experience with cloud networking (AWS VPC, Transit Gateway, Azure VNets, GCP VPC)
Proficiency with network automation tools such as Ansible, Terraform, or vendor‑specific APIs
Experience with load balancers and traffic management (NGINX, Envoy, cloud LB services)
Strong Linux systems knowledge and comfort troubleshooting at multiple layers
Programming or scripting skills in Python, Go, or similar languages
Experience with observability platforms such as Prometheus, Grafana, ELK, or OpenTelemetry
Proven track record in incident management for network‑related outages
Preferred
Experience with SDN technologies (e.g., Cisco ACI, VMware NSX)
Knowledge of zero‑trust networking principles and modern security architectures
Background with distributed systems networking (Kafka, microservices, multi‑cluster)
Vendor certifications such as CCNP, CCIE, JNCIP, or cloud networking specialties
Experience contributing to network automation tooling or open‑source projects
Benefits
Incentive compensation
Bonus
Restricted stock units
Benefits
Company
F5 is a multi-cloud application services and security company that specializes in application security, performance, and delivery.
5001-10000 employees
H1B Sponsorship
F5 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 (155)
2024 (110)
2023 (211)
2022 (194)
Funding
Current Stage
Public CompanyTotal Funding
unknownKey Investors
Elliott Management Corp.
2020-11-08Post Ipo Equity
1999-06-04IPO
1998-09-24Series Unknown
Leadership Team
François Locoh-Donou
President and CEO
Mohan Veloo
Chief Technology Officer - Asia Pacific, China & Japan
Recent News
Business Wire
2026-01-16
2026-01-15
2025-12-24
Company data provided by crunchbase