Network Systems Engineer IT/OT & SCADA COMMUNICATION
$125,000–$170,000 year
On-site · Folsom, California, United States
Job Summary
Network Systems Engineer for IT/OT & SCADA infrastructure responsible for designing, configuring, testing, commissioning, and supporting industrial networks and telemetry systems across SCADA/OT environments. Collaborates with engineering, operations, cybersecurity, and field teams to deliver secure, reliable, high-availability networks for plants, substations, control centers, and remote field installations. Key activities include configuring industrial switches/routers, VPNs, firewalls; designing segmentation and topologies; integrating RF/telemetry links; supporting virtualization and SCADA workstations/servers; performing FAT/SAT tests; and ensuring compliance with OT cybersecurity standards. Requires hands-on experience with Ethernet/IP, Modbus, DNP3, IEC 60870-5-104, RF propagation, and relevant certifications; travel to field sites is expected.
Required Qualifications
- Bachelor’s degree in Electrical Engineering, Computer Engineering, Computer Science, Information Technology, or related field
- Equivalent experience may be considered in lieu of a degree
- 5+ years of experience designing, integrating, and supporting industrial or mission-critical communication networks
- Experience with Layer 3 switching, VLAN segmentation, and routed networks
- Experience supporting SCADA, telemetry, or OT network environments
- Core Technical Skills: Industrial network topologies and redundancy models; Layer 2 and Layer 3 Ethernet switching; VLAN and IP-based segmentation
- Proficiency in TCP/IP and UDP networking; IP and serial communications/interfaces
- Familiarity with virtualization (VMware/Hyper-V/Proxmox)
- RF communication fundamentals and propagation
- Firewalls, VPNs, secure gateways
- Knowledge of OT cybersecurity standards (NIST, IEC 62443, NERC CIP)
- Relevant certifications (CCNA/CCNP, Network+, Security+, etc.)
- Valid California Driver’s License
- Experience in field deployment, FAT/SAT testing, and commissioning
- Strong analytical and troubleshooting skills across wired, wireless, and serial networks
- Ability to travel 25-35% to customer sites
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