Network Administrator
The role involves configuring and supporting secure, isolated R&D lab environments through network segmentation and firewall management. Responsibilities include implementing Linux hardening, secure privileged access, and managing NAC/ClearPass onboarding.
- Remote
- Toronto, Ontario, Canada
- Posted Aug 27, 2026
- 1 position
Job summary
Job Title: Network Administrator (RDL - Research and Development Lab) Client: Private Sector Technology Company Duration: 6 contract with potential extension Location: Toronto, ON - Remote Job Overview We are seeking a Senior Network Administrator to support secure, isolated R&D lab environments. This is a hands-on role combining enterprise networking, Linux security/hardening, network segmentation, and secure privileged access. Responsibilities Configure and support switching, routing, VLANs, firewall rules, and SD-WAN Design and maintain secure network segmentation and isolated R&D lab environments Perform Linux hardening, SSH/PAM configuration, local RBAC, and secure account management Integrate Zscaler ZTNA, CyberArk vPAM, and virtualized Jump Hosts Implement secure audit logging and controlled access requirements Manage NAC/ClearPass onboarding and access controls Troubleshoot complex network, connectivity, and security issues Maintain network and security documentation RequirementsMust-Have Strong Linux administration and security hardening experience Advanced switching/routing, VLAN segmentation, and firewall experience Experience with SSH, PAM, RBAC, and secure access management Hands-on experience with NAC/ClearPass and network isolation Experience supporting secure R&D, lab, or engineering environments Nice-to-Have Zscaler ZTNA and CyberArk vPAM SD-WAN experience Virtualized Jump Host administration Experience with export-controlled or highly secured environments #IndKyn Please note this is for a contract position with one of our clients and not a fulltime employment role with Kyndryl Canada**
What you’ll do
The role involves configuring and supporting secure, isolated R&D lab environments through network segmentation and firewall management. Responsibilities include implementing Linux hardening, secure privileged access, and managing NAC/ClearPass onboarding.
Requirements
Candidates must have strong experience in Linux security hardening and advanced network switching, routing, and VLAN segmentation. Proficiency with SSH, PAM, RBAC, and supporting secure engineering environments is required.
Listed skills
- VLANsPreferred
- SwitchingPreferred
Other relevant skills
Identified from the job description. Confirm important requirements above.
- Linux Administration
- Network Segmentation
- Switching
- Routing
- VLANs
- Firewall Configuration
- SD-WAN
- SSH
- PAM
- RBAC
- Zscaler ZTNA
- CyberArk vPAM
- NAC/ClearPass
- Linux Hardening
- Network Isolation
- Audit Logging
Job areas
- Technology
- Engineering
- Security & Safety
- Consulting
Additional details
- Minimum experience
- 5+ years
- Posting language
- English
- Working hours
- 40 hours per week
- Seniority
- Mid-Senior level