OT Security Engineer: Design & Monitor Industrial Networks

Solaris Energy Infrastructure; Houston (TX); On-site; USD 110,000 - 160,000; Full time

Job summary

Solaris Energy Infrastructure, Inc. is seeking an OT Security Analyst to design and secure distributed power generation and OT networks.

You will create secure by design architectures, monitor vulnerability management, and govern incident response across multiple site deployments. You will collaborate with Engineering and IT, defining hardening baselines and secure remote access, while ensuring compliance with IEC 62443 and NIST CSF.

Qualifications

• Bachelor's degree or equivalent practical experience in cybersecurity/CS/engineering.
• 4+ years in cybersecurity with at least 2 years in OT/SCADA environments.
• Experience designing segmented industrial networks including Purdue model and zone/conduit architecture.
• Knowledge of industrial protocols such as Modbus, DNP3, OPC UA, IEC 61850.
• Vulnerability management in environments where devices cannot be scanned, patched, or rebooted.
• Hands-on experience configuring and hardening industrial network equipment and firewalls.

Responsibilities

• Partner with Engineering and IT on network design for new sites, embedding security early.
• Contribute to SDN flow policy design; ensure least-privilege, auditable flows.
• Develop reference OT network segmentation architecture scalable across sites.
• Define hardening baselines for Ignition gateways, SEL device mgmt, industrial switches, OT endpoints.
• Establish secure remote access with authentication, session logging, and approvals.
• Evaluate security stack against OT requirements and recommend tooling to close gaps.
• Build OT network visibility and asset inventory across sites.
• Extend enterprise security tooling into OT where safe; suggest purpose-built platforms.
• Run continuous vulnerability management for industrial assets; perform risk-based remediation.
• Monitor for anomalous OT activity; triage and escalate incidents.
• Audit deployed sites against design standards and close configuration drift.
• Maintain and exercise OT incident response playbooks; support OT-involved incidents.
• Produce audit evidence for SOX ITGC where OT touches financial reporting.
• Maintain OT security policy aligned to IEC 62443 and NIST CSF.
• Support customer security questionnaires and contract security reviews.
• Provide OT security input to Engineering on new equipment and vendor selection.

Skills

Exceptional communicator

Total ownership mindset

Independent thinker

Innovative thinker

Desirable teammate

Relentless

Education

Bachelor's degree in Cybersecurity/CS/Engineering

Tools

Claroty

Nozomi

Dragos

Tenable OT

Rapid7 InsightVM/IDR

Job description

Solaris Energy Infrastructure, Inc. is seeking an OT Security Analyst to design and secure distributed power generation and OT networks.

You will create secure by design architectures, monitor vulnerability management, and govern incident response across multiple site deployments. You will collaborate with Engineering and IT, defining hardening baselines and secure remote access, while ensuring compliance with IEC 62443 and NIST CSF.