Senior Network Systems Engineer

We're looking for a Network Systems Engineer to join our team. You will have expertise in Operational Technology (OT) networks and SCADA systems ensuring the design, security, and reliability of our industrial control environments. You will ensure that our OT infrastructure and SCADA platforms are resilient, secure, and integrated with enterprise systems.

You will work onsite at our San Jose, CA office, reporting into the Director of Information Technology.

Primary Responsibilities

OT Network and SCADA Systems

• Design, implement, and support secure available OT network architectures that underpin SCADA and industrial control systems

• Install, configure, and troubleshoot SCADA components, including HMIs, data historians, and RTUs

• Ensure communication across industrial protocols such as Modbus, DNP3, OPC, and industrial Ethernet technologies such as Ethernet/IP and PROFINET

• Partner with engineering, operations, and vendors to integrate and improve SCADA systems within the broader network infrastructure

• Implement and maintain cybersecurity controls tailored to OT environments, including segmentation, monitoring, and access management

• Be a subject matter expert on OT and SCADA systems, standards adoption, and continuous improvement

Network Design and Implementation

• Design and deploy resilient and secure network architectures, including segmentation strategies, VLANs, firewall policies, and access controls

• Collaborate with IT and OT partners to define requirements and ensure understanding of industry standards and regulatory frameworks

• Configure and maintain network infrastructure, including industrial and enterprise-grade switches, routers, and firewalls

Data Center and Cloud Infrastructure

• Support data center environments, including VMware, Windows, and Linux systems

• Contribute to cloud infrastructure management across Azure and AWS

• Help design and implement identity and access management solutions across IT and OT systems

• Ensure backup, disaster recovery, and business continuity capabilities

Documentation and Knowledge Sharing

• Develop detailed documentation, including network diagrams, configurations, SOPs, and troubleshooting guides

• Provide training and guidance to IT and engineering teams on OT networking, SCADA systems, and secure data practices

Qualifications

• Bachelor's degree in Computer Science, Engineering, or a related field

• 8+ years of experience in network engineering, with exposure to OT environments

• Experience designing and implementing OT and enterprise network infrastructure

• Hands-on experience with Fortinet and Cisco networking and security platforms, including FortiGate firewalls, FortiManager, and Cisco switches/routers

• Design and operate segmented OT networks using Fortinet and Cisco solutions, including VPNs, secure remote access, and zero-trust architectures

• Understanding of OT cybersecurity principles, including segmentation, intrusion detection, and secure remote access

• Experience with industrial networking equipment and technologies

• Knowledge of OT security standards and frameworks such as NIST SP 800-82 and IEC 62443

• Experience supporting and troubleshooting SCADA systems in production environments

Preferred Qualifications

• Expertise in OT protocols and SCADA architectures, with the ability to design and improve complex industrial communication systems

• Experience architecting zero-trust or segmented networks across IT and OT domains

• Familiarity with power grid or energy sector control systems

• Experience with DevOps, DevSecOps, or automation in infrastructure environments

• Database and data management experience, concerning industrial data systems

• Relevant certifications such as GICSP or CISSP, or vendor certifications such as CCNP/CCIE or Fortinet NSE

   

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