{"id":3358038,"url":"https://alion.io/job/erock-engineer-ii-ot-infrastructure","title":"Engineer II, OT Infrastructure","company":{"id":2137844,"name":"ERock","domain":"erock.com","url":"https://alion.io/company/erock","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Paylocity","truth_index":{"grade":"A","score":90,"open_postings":13,"ghost_share":0,"stale_share":0.385,"repost_share":0,"time_to_fill_p50_days":50,"computed_at":"2026-11-12T10:38:37Z"}},"role":"Industrial Engineering","role_family":"Industrial Engineering","seniority":"middle","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Houston, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":66000,"max_usd":120000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":4330},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Active Directory","optional":false},{"name":"BGP","optional":false},{"name":"Datadog","optional":false},{"name":"DHCP","optional":false},{"name":"DNS","optional":false},{"name":"FortiGate","optional":false},{"name":"OSPF","optional":false},{"name":"VMWare","optional":false},{"name":"VPN","optional":false},{"name":"Windows Server","optional":false},{"name":"Zero Trust","optional":false},{"name":"Azure","optional":true},{"name":"DNP3","optional":true},{"name":"NERC CIP","optional":true}],"status":"live","first_seen_at":"2026-10-27T16:15:45Z","employer_posted_date":"2026-10-27","last_verified_at":"2026-11-12T23:36:41Z","board_verified":true,"closed_at":null,"days_open":16,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":16},"description":"Description\n We are ERock!\nERock (NYSE: EROC) is enabling energy for a new era. ERock delivers onsite utility-grade power that gets customers up and running quickly, while supporting long-term grid development. ERock’s proprietary natural gas generators help critical facilities address grid constraints, interconnection delays, and outage risks while accelerating speed-to-power for new and expanding operations. Trusted by data centers, utilities, manufacturers, healthcare systems and government organizations, ERock engineers for rapid deployment, long-duration reliability, low local emissions, and scalable performance to meet the evolving energy demands of today and tomorrow.\nKey Responsibilities:\nAs an Infrastructure Engineer II, you will lead the hands-on engineering, configuration, and day-to-day administration of secure, resilient IT, OT, and industrial network and systems infrastructure across ERock’s Enterprise Environments, Data Centers, and Distributed Microgrid sites. You will:\nSupport secure, reliable infrastructure across ERock’s enterprise, data center, and remote microgrid environments. \nConfigure and troubleshoot networks and security, including SD-WAN, firewalls, switches, VPN tunnels, and hybrid cloud connectivity. \nMaintain industrial connectivity for SCADA, PLCs, RTUs, and remote monitoring systems. \nAdminister VMware, Windows Server, and Active Directory, including provisioning, patching, and maintenance. \nResolve complex incidents with Helpdesk, Security, OT, and field teams while helping minimize operational disruptions. \nMaintain standards and documentation, including backups, disaster recovery procedures, templates, and runbooks.\nRequirements\n Basic (Required) Qualifications:\nDirect hands-on experience configuring, deploying, and troubleshooting Fortinet FortiGate firewalls, including firewall policies, IPsec/SSL VPNs, NAT, and core security profiles. \nBachelor’s degree in Computer Science, Information Technology, or a related field (or equivalent practical experience), along with 5-7+ years of hands-on infrastructure and networking experience. \nSolid hands-on experience configuring, troubleshooting, and administering enterprise networking hardware and protocols, including BGP, OSPF, VLANs, IPsec VPNs, NAT, DNS/DHCP, QoS and routing policy management. \nWorking knowledge of industrial networks, including industrial managed switches, ruggedized field gear, and connectivity supporting SCADA and PLC communication. \nDirect working experience administering VMware environments (ESXi, vCenter, VM provisioning, snapshot management, and virtual networking/vSwitches). \nHands-on system administration experience with Windows Server environments and patch management. \nExperience with implementing network security designs, including stateful inspection, access segmentation, and Zero Trust fundamentals. \nExperience deploying monitoring and alerting tools (e.g., SNMP, Syslog, PRTG, SolarWinds, or Datadog) to proactively detect performance issues and latency spikes. \nProven track record of managing multi-site deployment projects, coordinating with field technicians, and resolving escalated support tickets. \nWillingness to travel up to 20% (local/regional). \nAbility to lift and carry equipment weighing up to 20 pounds, review schematics and computer screens, and communicate effectively across teams. \nPreferred Qualifications:\nRequired Qualifications & Experience:\nHave hands-on experience with edge-to-cloud IoT systems and the challenges that come with them. \nHave deep hands-on experience architecting distributed IT/OT networks across energy, utilities, oil & gas, industrial, or other mission-critical environments. \nHave designed and secured segmentation strategies aligned to Purdue Model and regulatory standards such as NERC CIP.? \nBring expert-level experience with Fortinet, Cisco and/or Palo Alto architecture. \nHave modernized legacy environments, reducing technical debt while increasing resiliency and compliance alignment.? \nPossess strong routing expertise (BGP, DMVPN, IPsec) and understand how to engineer high-availability connectivity across unreliable or remote infrastructure.? \nAre comfortable owning architecture standards, reviewing designs, mentoring engineers, and acting as escalation authority. \nHold advanced certifications (CCNP, CISSP, CISM, Fortinet NSE/FCNSP, PCNSE, etc.) and bring both strategic and hands-on credibility.? \nPreferred Skills:\nExperience in utility, energy, industrial, or OT environments. \nFamiliarity with Modbus TCP, DNP3, industrial switches, fiber, and redundant network topologies. \nExperience with Azure networking and hybrid identity. \n Benefits:\nCompetitive Pay \nMedical, Dental, Vision, and Prescription Drug Insurance \nCompany-Paid Life Insurance \nFlexible Spending Account (FSA) \nHealth Savings Account (HSA) with a company contribution \nWellness Programs and Incentives \n401(k) Retirement Plan & Company Match \nPaid Time Off - Sick & Vacation Time \nPaid Holidays \nDo you have what it takes to join the ERock team? Send us your cover letter and resume today. The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.\nERock is committed to creating a diverse environment and is proud to be an equal opportunity employer. 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