Job Description

Network Security II Engineer II (Enterprise IT + Manufacturing/OT)

Platforms: Palo Alto NGFW (Strata) | Zscaler (ZIA/ZPA) | F5 BIG-IP WAF (ASM/AWAF) | ServiceNow

Shift: Flexible — AMER, EMEA, or APAC time zones

Role Summary

Support day-to-day network security operations across enterprise IT and manufacturing/OT environments. Assist with firewall and cloud security policy support, WAF monitoring/tuning, and incident handling through ServiceNow—while following change control and operational best practices.

Key Responsibilities

Palo Alto NGFW

Support firewall policy administration (security rules, NAT, objects, zones).
Review and analyze logs (Traffic/Threat/URL) for troubleshooting and investigations.
Assist with approved changes and documentation.

Zscaler (ZIA)

Support secure access troubleshooting (policy blocks, forwarding, user access issues).
Review logs and partner with teams to resolve recurring issues.

F5 BIG-IP WAF (ASM/AWAF)

Monitor WAF alerts and assist with the investigation of web threats.
Support WAF policy tuning to reduce false positives while maintaining protection.
Help onboard web applications behind the WAF (testing + documentation).

ServiceNow Incident Handling

Triage incidents, document troubleshooting steps, and drive tickets to resolution.
Escalate effectively and support post-incident follow-ups/knowledge articles.

Enterprise IT + Manufacturing/OT Support

Support segmentation and access controls for OT/plant environments.
Coordinate changes carefully to protect uptime, safety, and production continuity.

Required Qualifications

0–2 years of experience in network/security operations (or equivalent internship/lab experience).
Strong fundamentals in TCP/IP, DNS, routing, NAT, and HTTPS/TLS.
Hands-on familiarity with:

Palo Alto NGFW policy and logging
Zscaler policy concepts and troubleshooting
F5 BIG-IP WAF (ASM/AWAF) alert review and basic tuning/onboarding
ServiceNow incident workflow and documentation

Clear communication skills and strong attention to detail.

Preferred Qualifications

Exposure to manufacturing/OT security practices (e.g., Purdue model, ISA/IEC 62443 concepts).
Experience with SIEM tools and supporting SOC investigations.
Scripting basics (PowerShell/Python) for troubleshooting/log parsing.
Certifications (or working toward): PCNSA/PCNSE, Zscaler certs, F5 fundamentals.

About The Team

Work Authorization

No calls or agencies please. Vertiv will only employ those who are legally authorized to work in the United States. This is not a position for which sponsorship will be provided. Individuals with temporary visas such as E, F-1, H-1, H-2, L, B, J, or TN or who need sponsorship for work authorization now or in the future, are not eligible for hire.

Equal Opportunity Employer

We promote equal opportunities for all with respect to hiring, terms of employment, mobility, training, compensation, and occupational health, without discrimination as to age, race, color, religion, creed, sex, pregnancy status (including childbirth, breastfeeding, or related medical conditions), marital status, sexual orientation, gender identity / expression (including transgender status or sexual stereotypes), genetic information, citizenship status, national origin, protected veteran status, political affiliation, or disability.