RHEL Systems Engineer
Job Location:
Job Location:
Houston, MS - USA
Monthly Salary:
Not Disclosed
Monthly Salary:
Posted on:
15 hours ago
Posted on:
Vacancies:
1 Vacancy
Vacancies:
Job Summary
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 cloudand everything in between.
About The Position
The Senior RHEL engineer will own the OS and container platform behind our on-premises energy-management deployments. Youll 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 wont install systems in the field.
Responsibilities:
Qualifications
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 cloudand everything in between.
About The Position
The Senior RHEL engineer will own the OS and container platform behind our on-premises energy-management deployments. Youll 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 wont install systems in the field.
Responsibilities:
- Build version and maintain a reproducible turnkey RHEL image tailored to the SCADA hosts 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.
Required Experience:
Senior IC
About Company
ASCENDING empowers businesses with AI-driven solutions and cloud transformation strategies. Unlock innovation, scalability, and efficiency with our expert services in AI, cloud migration, and digital modernization.
