Haystack
← Back to Jobs
Technology

Sr. Network Engineer OT

Tetra ComputingRensselaer, NY🇺🇸United StatesPosted 15 Jul 2026

Quick Overview

Work Type
Hybrid
Level
Mid Senior

Job Description

Job Title: Sr. Network Engineer OT

Project Location: Rensselaer, NY

Duration: 12 Months

Description:

Project Description: The company is in the process of a new plant buildout.
The need is to segment the OT (Operational Technology) manufacturing network from the IT (Business) network utilizing the Purdue/ISA95 framework.
So they need an overall Cisco Network Engineer with the other points of emphasis being: Palo Alto Firewalls, Purdue/ISA95 experience, and OT Manufacturing experience (big plus).

Skills/duties include:
• Expertise with Cisco components.
o Cisco route and switch certifications
• Expertise with Palo Alto firewalls.
• Familiarity with Purdue/ISA95 Operational
• Technology (OT) network design framework.
• Requirements gathering across OT and IT application teams.
• Network component design, configuration, and implementation to support the Purdue / Golden Design OT network framework.
• Familiarity with working in an environment with regulatory requirements.
• Build out iDMZ between OT and IT networks.
• Segregate new Active Directory forest alongside iDMZ implementation.
• Implement additional boundary protections between Purdue levels within the OT network.
• Review traffic, provide connectivity options to achieve operational objectives, and implement technical and administrative controls to prevent cross-domain connections.
• Migrating existing OT devices and servers to new segmented networks.
• Network documentation.

Skills

Active Directory

Similar jobs