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Commission Remote Firewall Jobs (NOW HIRING)

ASCENDING

RHEL Systems Engineer

Houston, TX · Remote

On the network side, the host firewall and OS-level networking (interfaces, routing, DNS, firewalld ... The separate OT team commissions and deploys every machine, so you won't install systems in the ...

ASCENDING LLC

RHEL Systems Engineer

Houston, TX · On-site +1

On the network side, the host firewall and OS-level networking (interfaces, routing, DNS, firewalld ... The separate OT team commissions and deploys every machine, so you won't install systems in the ...

United Airlines

Network Security Lead

Dallas, TX · On-site +1

$176K/yr

Location This is a remote role based in Dallas, US. About The Job You're Considering The Cloud ... Firewall & Segmentation Strategy Owner : Define and standardize firewall policies and segmentation ...

World Wide Technology

Application Network Engineer

$90K - $112K/yr

Familiarity with application-layer security concepts, such as Web Application Firewall policy ... commissions, that are not included in the base pay. The well-being of WWT employees is essential.

World Wide Technology

Network Engineer III

$130K - $140K/yr

Knowledge of zero trust network security best practices, including firewalls and macro ... Remote Travel Required: 25 - 75%. May require onsite trips to the VA/DC/MD area and client site ...

Nasdaq

Market Operations Overnight Lead

Troubleshoot all client connectivity issues including firewall changes, access list modifications ... This is a remote, WFH position that can be based anywhere in the United States but you must be able ...

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As of Aug 21, 2026, the average hourly pay for commission remote firewall in the United States is $53.99, according to ZipRecruiter salary data. Most workers in this role earn between $45.91 and $61.54 per hour, depending on experience, location, and employer.

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RHEL Systems Engineer

ASCENDING

Houston, TX • Remote

Full-time

Re-posted 13 hours ago

Job description

Title: Sr. RHEL Designer/Engineer (OT/SCADA)
Location: preference for Houston, TX or in Miami, FL, Houston, TX or Reston, VA
Term: Full Time, Direct Hire – remote but may need to travel to client locations periodically, especially at the start or kick off of a project.
Position Overview
Our client delivers turnkey clean energy and power infrastructure solutions across the Americas. We design, build, and operate advanced Battery Energy Storage Systems (BESS) and mission-critical networks for data centers, utilities, and industrial clients. Our technology-first mindset powers systems from SCADA to cloud—and everything in between.
About The Position
The Senior RHEL engineer will own the OS and container platform behind our on-premises energy-management deployments. You'll build and harden the tailored RHEL image and the containerized Ignition SCADA workload running on industrial PCs across U.S. data-center sites, and act as our deep RHEL authority and L3 escalation point. This is a platform-engineering and expertise role — not field installation.
You will own our OS architectures, container builds and configuration, and the runtime that hosts Ignition, while the SCADA team owns everything configured inside Ignition (tags, screens, logic). On the network side, the host firewall and OS-level networking (interfaces, routing, DNS, firewalld/nftables) are yours, while the physical and site network beyond the host NIC belongs to Operational Technology (OT).
Travel to third-party data-center sites is for troubleshooting and support only. The separate OT team commissions and deploys every machine, so you won't install systems in the field.
Responsibilities:
  • Build, version, and maintain a reproducible, turnkey RHEL image tailored to the SCADA host's needs (time sync, firewall/ports, storage, service ordering, resource tuning).
  • Own the SCADA container image end to end: Containerfile, base image, JVM, persistence, ports, hardening, scanning, and registry.
  • Run containers as systemd services via Podman and quadlets.
  • Harden the OS and images to a recognized baseline (CIS/STIG) and define a patching and lifecycle strategy for OT uptime and restricted/disconnected sites (offline/mirrored registry).
  • Troubleshoot full-stack — OS, container runtime, and application runtime behavior — remotely and on-site, handing off application-level issues to the SCADA team.
  • Own host-level networking and firewall configuration (interfaces, routing, DNS, firewalld/nftables, and port exposure for the SCADA container), and lead connectivity troubleshooting between the host and site infrastructure.
  • Document runbooks for the OT team and help define the connectivity and security posture.
  • Maintain the Windows image pipeline (Packer-based) in steady state once established: periodic patching, hardening updates, and image rebuilds.

Qualifications
  • 7+ years of senior, hands-on production RHEL/Linux engineering.
  • Container-native delivery: Podman, quadlets/systemd, building and owning container images (including packaging a JVM-based app such as Ignition), and registry management.
  • Reproducible, turnkey, versioned RHEL image building (bootc, Kickstart, Image Builder/osbuild, or Ansible-driven).
  • OS and image hardening to a recognized baseline (CIS/STIG).
  • Patch and lifecycle management for restricted/disconnected environments, including offline/mirrored content and registries.
  • Automation (Ansible) and version control.
  • Strong Linux networking and diagnostics: firewall administration (firewalld/nftables) and packet/connectivity tooling (Wireshark, tcpdump, ss, ip), plus containerized debug environments (toolbox).
  • Confidence operating as the RHEL authority, with strong documentation habits.

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