Senior Engineer - Network Security Operations

About the Role
This role involves maintaining the company's enterprise networks and secure access services to ensure they remain reliable, resilient, and secure. You will take on a hands-on senior engineering role, responsible for configuring, operating, troubleshooting, and improving Aruba and Cisco networking, Palo Alto firewalls, Zscaler ZIA/ZPA, and Azure hybrid connectivity. Your expertise will contribute to resolving complex operational issues, managing controlled changes, and ensuring technical delivery within established architectural and security standards.

Responsibilities
What You’ll Own

• Operate and improve LAN, WLAN, WAN, Internet, VPN, and hybrid-cloud connectivity, maintaining availability, performance, segmentation, and secure traffic flows.
• Configure and troubleshoot Aruba switches, wireless controllers or gateways, and access points; maintain reliable coverage, capacity, and configuration baselines.
• Administer Cisco Catalyst and Nexus platforms, including IOS XE/NX-OS, VLANs, VRFs, OSPF/BGP, QoS, high availability, secure management, and software upgrades.
• Implement and maintain Palo Alto firewall policies, zones, NAT, VPN, high availability, logging, and rule reviews, applying approved security controls and change procedures.
• Operate Zscaler ZIA/ZPA services, including secure Internet and private-application access, traffic forwarding, PAC files, inspection, exceptions, and connectivity troubleshooting.
• Configure and troubleshoot Azure VNets, subnets, peering, VPN Gateway, site-to-site and point-to-site VPNs, UDRs, BGP, DNS, NSGs, and inspected egress paths.
• Monitor service health, security events, anomalous traffic, capacity, configuration drift, and ISP resilience. Improve telemetry, SIEM integration, alert quality, and escalation.
• Own complex network and security incident investigation and restoration, coordinating containment and recovery with Cybersecurity, the SOC, cloud teams, and service providers. Complete root-cause analysis and permanent corrective actions.
• Execute vulnerability remediation, configuration hardening, patching, and controlled changes with documented testing, rollback plans, and post-change validation.
• Deliver network and security upgrades and migrations; contribute practical design improvements and validate resilience, failover, interoperability, and capacity.
• Maintain network diagrams, inventories, configuration backups, runbooks, and audit evidence. Coordinate cabling, patching, labeling, testing, and as-built documentation to agreed standards.
• Drive vendor and carrier technical escalations against SLAs; track support, licensing, warranty, and renewal requirements and provide technical input to procurement.
• Share troubleshooting methods, review implementation changes, and mentor engineers. Track availability, incident restoration, recurrence, remediation, and delivery outcomes.

Qualifications
What We’re Looking For

• Bachelor’s degree in Information Technology, Computer Science, Network Engineering, Cybersecurity, or a related field.
• 6+ years of enterprise networking or network-security experience, including hands-on responsibility for complex production operations and incident resolution.
• Strong hands-on experience with Aruba switching and wireless, Cisco Catalyst/Nexus routing and switching, and Palo Alto firewalls, including routing protocols, segmentation, policy, NAT, VPN, and high availability.
• Practical experience operating Zscaler ZIA/ZPA, SASE and Zero Trust access controls, proxy forwarding, PAC files, inspection, and exception handling.
• Experience with Azure networking and hybrid connectivity, including VNets, peering, VPN Gateway, routing, UDRs/BGP, NSGs, and network segregation.
• Strong TCP/IP, DNS/DHCP, network access control, and troubleshooting fundamentals; ability to diagnose issues across network, firewall, proxy, cloud, and identity boundaries.
• Experience with monitoring and SIEM integration, secure configurations, vulnerability remediation, incident and problem management, controlled changes, and vendor SLA escalations.
• Clear technical communication, sound operational judgment, disciplined documentation, and the ability to coordinate changes and incidents across technical teams.

Nice to Have

• Experience with Cisco ISE/802.1X, Catalyst Center, or Catalyst SD-WAN where deployed.
• Relevant Cisco CCNP, Aruba, Palo Alto Networks, Zscaler, Azure networking, or ITIL certification, or equivalent demonstrated expertise.

What Working At the Company Offers

• Culture: An open, diverse, and inclusive environment with a global vision that encourages personal growth and focuses on ground-breaking, industry-first innovations.
• Career: Outstanding learning, development & growth opportunities via structured training programs and innovative, high-tech projects.
• Rewards: A competitive remuneration package with a host of perks including healthcare, education support, leave benefits, and more.

If you are a performance-driven, inquisitive mind with the agility to adapt to ambiguity, you will fit right in. You should be eager to explore opportunities to build meaningful collaborations with stakeholders and aspire to create unique customer-centric solutions. Bias for action and a passion to conquer new frontiers in the AI space is at the heart of the company's community.