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Operational Technology (OT) Firewall Engineer / Palo Alto Engineer (English Speaking)

Safebox LLC
Desde casa

Postulación rápida

Información del empleo

Tiempo completo
$78,932 a $89,456 por mes
Hace 2 horas

Cualificaciones

TCP
LAN
Visio
Inglés
IDS
Ethernet
Software de acceso remoto
Experiencia en manufactura
Cisco ASA

Descripción completa del empleo

Safebox LLC provides strategic IT leadership, robust security, and operational excellence tailored specifically for mid-market enterprises. We are seeking an Operational Technology (OT) Firewall Engineer / Palo Alto Engineer (English Speaking - remote) to work with our manufacturing client. In this role you will Own the firewall and segmentation workstream of a North American Operational Technology cyber resilience initiative — remotely. Working from discovery data (Claroty or similar) and site survey output, you will baseline actual traffic flows, identify IT/OT security vulnerabilities, remediate existing firewall posture, and design and implement network segmentation aligned to the Purdue model. This role turns discovery findings into enforceable policy — building rulebases that protect Operational Technology assets without breaking the industrial traffic that keeps plants running.

Key Responsibilities

Review discovery data to baseline actual traffic flows, protocols, and asset communications across plant networks; contribute to the IT/OT vulnerability assessment and segmentation recommendation
Remediate existing firewall posture: rulebase cleanup, removal of overly permissive rules, policy optimization, documented exceptions
Design and implement network segmentation: Purdue model zones and conduits, IT/OT boundary enforcement, industrial DMZ architecture for plant-to-enterprise data flows
Build, stage, and deploy Palo Alto NGFW policies (security policy, NAT, App-ID/service-based rules, zone protection, logging standards) managed via Panorama
Coordinate with the LAN engineer on VLAN/routing changes supporting segmentation; validate policy behavior remotely during cutover windows
Tune policies for industrial protocols and long-lived Operational Technology sessions; troubleshoot blocked flows affecting PLCs, HMIs, historians, and vendor remote access
Support implementation events remotely during scheduled maintenance windows (including nights, weekends, holidays); provide hypercare after cutovers
Produce documentation: segmentation design, rulebase standards, change records, as-built policy documentation

Required Experience:

5+ years hands-on firewall engineering, with 3+ years on Palo Alto NGFW (policy design, Panorama, upgrades, troubleshooting)
Direct experience implementing network segmentation — ideally IT/OT segmentation in manufacturing or industrial environments
Working knowledge of the Purdue model and Operational Technology security architecture (zones/conduits, industrial DMZ, secure remote access patterns)
Experience performing firewall rulebase remediation on brownfield environments
Strong understanding of routing, NAT, and how firewall changes interact with L2/L3 design
Experience working through secure remote access (jump hosts, PAM) into production environments
English proficiency sufficient for daily collaboration, documentation, and live cutover bridges with US-based stakeholders

Preferred Experience

Experience consuming discovery data (Claroty, Nozomi, Dragos, Armis) to build segmentation policy
Industrial protocol firewall handling: EtherNet/IP, PROFINET, Modbus TCP, OPC UA, DNP3
Palo Alto certifications (PCNSE preferred; PCNSA acceptable)
Palo Alto Operational Technology capabilities: IoT/OT Security subscription, industrial App-IDs
Migration experience from legacy platforms (Cisco ASA, Check Point, Fortinet) to Palo Alto
ISA/IEC 62443 familiarity

Tools / Technologies

Palo Alto NGFW, Panorama, PAN-OS
Claroty or similar Operational Technology discovery platforms
Expedition or equivalent migration tooling; Wireshark / flow analysis
Documentation and diagramming tools (Visio or similar)

Soft Skills

Risk-aware but delivery-oriented — knows when to enforce and when to alert-only during phased rollouts
Precise change discipline: every rule has an owner, a justification, and a record
Communicates policy impact in plain language to plant stakeholders who are not security specialists

Work Schedule

Full-time, aligned to US business hours; flexibility for implementation events in US Pacific and Hawaii–Aleutian time zones
Overtime, weekend, and holiday work required during implementation and cutover windows

Work Location: fully remote

Engagement Duration

6 months full-time initial term; strong potential for extension into remediation, modernization, and ongoing site support

Rate: Up to USD $5,100 gross per month

Important Notes:

Direct applicants only; no staffing agencies or Corp-to-Corp arrangements.
Safebox LLC is an equal opportunity employer committed to diversity and inclusion.
Failure to respond to supplemental questions may result in automatic rejection.

Job Type: Full-time

Pay: $78,932.00 - $89,456.00 per month

Application Question(s):

Have you previously worked for any US companies? If so, please list them here.
This role works with customers in English; it is expected that your English communication skills are sufficient. Please confirm and also confirm your submitted resume is in English.

Experience:

Purdue model: 1 year (Required)
hands-on firewall engineering: 5 years (Required)
Palo Alto NGFW: 3 years (Required)
manufacturing or industrial: 1 year (Required)

Language:

Advanced English (B2) (Required)

Work Location: Remote

Postulación rápida

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