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Solaris Energy Infrastructure

Mobile power solutions and logistics infrastructure

OT Security Engineer

Security Engineering & ArchitectureUpdated on Nov 12
Full-timeHouston, TX, USANo salary listedIn-person

About the Job

Requirements

  • A bachelor's degree in Cybersecurity, Computer Science, Engineering, or a related technical field, or equivalent practical experience.
  • At least 4 years of cybersecurity experience, including a minimum of 2 years of hands-on experience in operational technology, industrial control systems, or SCADA environments.
  • Demonstrated experience designing or reviewing segmented industrial networks, including the Purdue reference model and zone/conduit architecture.
  • Working knowledge of industrial protocols such as Modbus, DNP3, OPC UA, or IEC 61850.
  • Experience with vulnerability management in environments where devices cannot be freely scanned, patched, or rebooted.
  • Hands-on ability to configure and harden industrial network equipment and firewalls.

Responsibilities

  • Partner with Engineering and IT Systems on network design for each new site build, bringing security requirements into the design process early.
  • Contribute to software-defined networking flow policy design and review, ensuring engineered flows are least-privilege, documented, auditable, and current as sites change.
  • Develop and maintain a reference architecture for OT network segmentation that scales across sites.
  • Define hardening baselines for Ignition gateways, SEL device management, industrial switching, and OT endpoints.
  • Establish secure remote access for internal teams, original equipment manufacturers, and third-party service providers, including authentication, session logging, and approval workflows.
  • Evaluate the current security stack against OT requirements and recommend tooling to close identified gaps.
  • Build and maintain OT network visibility and asset inventory across all operating sites.
  • Extend existing enterprise security tooling into OT where safe, and recommend purpose-built platforms where passive or protocol-aware monitoring is required.
  • Run continuous vulnerability management against industrial assets using a risk-based, operationally realistic remediation approach.
  • Monitor anomalous OT network activity; triage, investigate, and escalate.
  • Periodically audit deployed sites against design standards and close configuration drift.
  • Maintain and exercise OT incident response playbooks; lead or support incidents involving OT.
  • Produce audit evidence supporting SOX IT General Controls where OT systems touch financial reporting.
  • Maintain OT security policy and standards documentation aligned to IEC 62443 and the NIST Cybersecurity Framework.
  • Support customer security questionnaires and contract security reviews.
  • Provide OT security input to Engineering and Operations on new equipment and vendor selection.

Desired Qualifications

  • Hands-on experience with Ignition or a comparable modern SCADA platform.
  • Experience with SEL software-defined networking, including SEL-2740S or SEL-5056 flow controller, or comparable OT software-defined networking environments.
  • Familiarity with SEL relays, SEL management tooling, or utility protection and control environments.
  • Background in power generation, utilities, energy infrastructure, or oil and gas.
  • GICSP, GRID, or ISA/IEC 62443 certification.
  • Experience with OT monitoring platforms such as Claroty, Nozomi, Dragos, or Tenable OT.
  • Experience with Rapid7 InsightVM or InsightIDR.
  • Prior hands-on engineering or operations experience in addition to security.

About the Company

Solaris Energy Infrastructure

Mobile power solutions and logistics infrastructure

Solaris Energy Infrastructure provides mobile, scalable equipment for distributed power generation and materials handling at oil and gas well sites. It has two segments: Solaris Logistics Solutions, which designs all-electric, mobile proppant management systems for frac sand and other materials; and Solaris Power Solutions, which offers natural gas–fueled mobile turbines and balance-of-plant equipment under long-term leases and service agreements. The company differentiates itself by pairing oilfield logistics with power solutions, using patented mobile equipment and turnkey projects backed by ongoing field service and long-term contracts with customers such as data centers and xAI. Its goal is to expand energy infrastructure offerings beyond traditional oilfield services by delivering end-to-end power and logistics solutions that improve completions efficiency, safety, uptime, and site power reliability.

Company size
201-500
Company stage
IPO
Headquarters
Houston, TX
Founded
2014

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