Operational Technology Network Engineer

Blue Signal Search; San Francisco (CA); Hybrid; USD 120,000 - 150,000; Full time

Benefits offered by this job

Base salary + bonus

Equity participation

Hybrid work environment

Remote flexibility nationwide

Career growth

Job summary

Blue Signal Search in San Francisco combines hybrid work with nationwide remote flexibility to expand its Operational Technology Infrastructure Engineering team. The role focuses on designing, implementing, and supporting OT networks across mission critical facilities, with direct impact on reliability, security, and scalability of HPC and related initiatives.

You will partner with facilities, controls, and infrastructure engineers, define network standards, monitor health, troubleshoot issues,

Qualifications

• Several years of experience designing and supporting OT or critical infrastructure networks.
• Strong understanding of Ethernet, TCP/IP, VLANs, routing, switching, and security.
• Experience with building automation, industrial controls, or facility systems.
• Knowledge of industrial protocols such as BACnet/IP.
• Ability to collaborate with controls, facilities, and infrastructure teams.
• Experience with network monitoring and performance optimization.

Responsibilities

• Design, implement, and support OT network infrastructure for critical facilities.
• Develop secure network architectures for building automation and industrial controls.
• Establish repeatable rollout practices across distributed sites.
• Configure segmentation, firewall policies, routing, switching, and secure remote access.
• Monitor health, troubleshoot connectivity, and optimize performance.
• Produce documentation and implementation standards.
• Support commissioning, upgrades, and operational improvements.

Skills

OT networking

Industrial protocols

Firewall & security

LAN/WAN design

Troubleshooting

Documentation

Job description

Location: Hybrid, San Francisco, CA and Remote, Nationwide

An innovative technology organization is expanding its infrastructure engineering team and is seeking an experienced Operational Technology Network Engineer to help develop and support resilient operational technology networking environments across mission critical facilities. This is an opportunity to join a fast moving engineering organization where your expertise will directly influence the reliability, security, and scalability of sophisticated infrastructure supporting high performance computing and advanced technology initiatives.

This Role Offers

• Competitive base salary, bonus opportunity, equity participation, and comprehensive benefits.
• Hybrid work environment with remote flexibility for qualified candidates nationwide.
• Opportunity to help define network standards for rapidly expanding critical infrastructure.
• Exposure to advanced networking technologies supporting large scale, mission critical operations.
• Collaborative engineering culture focused on innovation, continuous improvement, and technical excellence.
• Career growth within a rapidly expanding organization investing heavily in next generation infrastructure.

Focus

• Design, implement, and support operational technology network infrastructure serving critical facility systems.
• Develop secure network architectures supporting building automation, electrical monitoring, industrial controls, and related operational systems.
• Establish repeatable infrastructure rollout practices that support reliable execution and efficient growth across distributed sites.
• Configure and maintain network segmentation, firewall policies, routing, switching, and secure remote connectivity for operational environments.
• Partner closely with facilities, controls, commissioning, and infrastructure engineering teams throughout project lifecycles.
• Monitor network health, troubleshoot connectivity issues, and optimize performance while maintaining high availability.
• Assist with cybersecurity initiatives, access controls, network monitoring, and compliance best practices within OT environments.
• Produce technical documentation, implementation standards, network diagrams, and operational procedures.
• Support commissioning activities, infrastructure upgrades, and ongoing operational improvements.

Skill Set

• Several years of experience designing and supporting operational technology, industrial, or critical infrastructure networks.
• Strong understanding of Ethernet networking, TCP/IP, VLANs, routing, switching, and network security principles.
• Experience supporting building automation systems, industrial controls, facility management systems, or similar operational technologies.
• Working knowledge of industrial communication protocols, including BACnet/IP or comparable technologies.
• Experience implementing secure network segmentation and firewall solutions within operational environments.
• Ability to collaborate effectively with controls engineers, facilities teams, and infrastructure stakeholders.
• Familiarity with network monitoring, diagnostics, and performance optimization tools.
• Strong troubleshooting skills with the ability to resolve complex networking challenges.
• Excellent written and verbal communication skills.
• Experience supporting data center infrastructure, industrial cybersecurity frameworks, or critical facility environments is considered a plus.