CBTS serves enterprise and midmarket clients in all industries across the United States and Canada. CBTS combines deep technical expertise with a full suite of flexible technology solutions--including Application Modernization, Managed Hybrid Cloud, Cybersecurity, Unified Communications, and Infrastructure solutions. From developing and deploying modern applications and the secure, scalable platforms on which they run, to managing, monitoring, and optimizing their operations, CBTS delivers comprehensive technology solutions for its clients' transformative business initiatives. For more information, please visit www.cbts.com.
OnX is a leading technology solution provider that serves businesses, healthcare organizations, and government agencies across Canada. OnX combines deep technical expertise with a full suite of flexible technology solutionsincluding Generative AI, Application Modernization, Managed Hybrid Cloud, Cybersecurity, Unified Communications, and Infrastructure solutions. From developing and deploying modern applications and the secure, scalable platforms on which they run, to managing, monitoring, and optimizing their operations, OnX delivers comprehensive technology solutions for its clients' transformative business initiatives. For more information, please visit www.onx.com.
Job Summary:
The Senior Linux Administrator is responsible for the design, implementation, maintenance, and support of Linux-based systems across enterprise environments. This role requires deep technical expertise in Linux system administration, automation, networking, and performance tuning, with a focus on reliability, scalability, and security.
Key Responsibilities:
- System Administration:
- Install, configure, and maintain Linux servers (RedHat, CentOS, Ubuntu).
- Perform system upgrades, patching, and kernel tuning.
- Monitor system performance and ensure high availability.
- Infrastructure & Networking:
- Manage DNS, DHCP, firewalls, load balancers, and VLAN configurations.
- Troubleshoot networking issues and optimize system connectivity.
- Support storage systems (SAN/NAS) and backup solutions (e.g., NetBackup).
- Automation & DevOps:
- Develop and maintain automation scripts using Bash, Python, or Perl.
- Use configuration management tools (Ansible, Puppet, Chef).
- Support CI/CD pipelines and infrastructure-as-code practices.
- Security & Compliance:
- Implement system hardening and security best practices.
- Ensure compliance with PCI, HIPAA, or other regulatory standards.
- Manage SSL certificates, SIEM tools, and access controls.
- Project & Team Collaboration:
- Lead infrastructure projects and provide architectural guidance.
- Collaborate with cross-functional teams including developers and network engineers.
- Participate in 24x7 on-call rotation and incident response.
Required Qualifications:
- Bachelor's or Master's degree in Computer Science, Engineering, or related field.
- 5+ years of experience in Linux system administration.
- Strong knowledge of Linux internals, networking, and storage.
- Experience with cloud platforms (AWS, Azure, GCP) is a plus.
- Proficiency in scripting and automation tools.
- Familiarity with monitoring tools (Nagios, Prometheus, Grafana).
Preferred Certifications:
- RHCE (Red Hat Certified Engineer)
- RHCSA (Red Hat Certified System Administrator)
- ITIL, CEH, or other relevant certifications
Work Environment : Hybrid
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