Senior IT Network Engineer responsible for network infrastructure in AWS and hybrid environments. Helping GRAIL detect early cancer with secure, reliable connectivity.
Responsibilities
Design, build, and maintain AWS networking components, including VPCs, subnets, route tables, Internet Gateways, NAT Gateways, VPC endpoints, and Transit Gateway.
Configure and manage AWS network security controls, including Security Groups, Network ACLs, AWS Network Firewall, and AWS WAF, in alignment with security best practices.
Implement and support hybrid connectivity solutions, including AWS Direct Connect and Site-to-Site VPNs.
Configure and support traffic management and DNS services using Amazon Route 53 and Elastic Load Balancing (ALB, NLB, GLB).
Operate and troubleshoot on-premise and data center networking environments using Juniper and Aruba platforms, including routing, switching, VLANs, VRFs, and BGP/OSPF.
Configure and support Palo Alto Networks firewalls, including security policies, NAT, VPNs, and traffic inspection.
Implement and maintain network monitoring, logging, alerting, and dashboards using tools such as VPC Flow Logs, CloudWatch, Route 53 health checks, firewall logs, and device telemetry.
Participate in and often lead network-related incident response, performing root-cause analysis and contributing to corrective and preventive actions.
Support capacity planning, performance analysis, and validation of throughput, latency, and failover behavior.
Build and maintain infrastructure-as-code for network components using Terraform or CloudFormation, and contribute to CI/CD workflows.
Serve as a senior technical resource, reviewing designs, mentoring junior engineers, and communicating technical risks and tradeoffs to cross-functional partners.
These responsibilities summarize the role’s primary responsibilities and are not an exhaustive list. They may change at the company’s discretion.
Requirements
8+ years of experience working in network engineering roles with hands-on production responsibility.
5+ years of hands-on experience designing and operating AWS networking, including Amazon VPC, subnets, routing, Security Groups, and Network ACLs.
Hands-on experience with AWS Transit Gateway, Site-to-Site VPN, and Direct Connect.
Experience configuring and supporting Amazon Route 53 and Elastic Load Balancing.
5+ years of experience supporting enterprise or data center networking environments.
Hands-on experience with Juniper and/or Aruba networking platforms.
Hands-on experience with Palo Alto Networks firewalls.
Demonstrated experience implementing network monitoring, logging, and alerting solutions.
Strong troubleshooting skills across networking and application layers (DNS, TCP/IP, TLS, HTTP).
Bachelor’s degree in Computer Science, Information Technology, or related field, or equivalent practical experience.
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