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RDL Jump Host Admin

Remote / Online - Candidates ideally in
Toronto, Ontario, M5A, Canada
Listing for: Celestica
Remote/Work from Home position
Listed on 2026-10-09
Job specializations:
  • IT/Tech
    Cybersecurity, Systems Administrator, IT Support
Job Description & How to Apply Below

Remote Position:
Hybrid
Region:
Americas
Country:
Canada
State/Province:
Ontario
City:
Toronto

Summary

We are seeking an experienced, compliance-driven RDL Jump Host Administrator to take ownership of the system administration, security, and access control of our global local jump hosts. Reporting directly to the Lead Network Architect, and working in close alignment with the RDL Network Administrator, you will manage secure access pathways into completely isolated, air-gapped lab networks across multiple HPS Design Centers (including San Jose, Richardson, Thailand, Shanghai, Song Shan Lake, Penang, Chennai, and future sites).

The primary objective of this role is to ensure that remote connections terminating from corporate Zscaler ZTNA or customer Cyber Ark vPAM environments are securely processed, authenticated, and audited. Since our environments strictly prohibit Active Directory or domain joins, you will manage decentralized, local authentication configurations, shell environments, and session boundaries.

Crucially, you will implement and maintain the strict compliance frameworks required for Export Controlled VLANs—including interactive terms-of-use banners, mandatory user acceptance gates for shell access, and tamper-proof user-acceptance audit logging.

Core Responsibilities

1. Jump Host System Administration & Hardening

  • Server Provisioning & Lifecycle:
    Deploy, configure, and maintain Linux-based (Rocky Linux, Ubuntu, CentOS) local jump host virtual machines operating on VMware vSphere or Microsoft Hyper-V clusters.
  • Operating System Hardening:
    Apply strict CIS (Center for Internet Security) hardening benchmarks on all jump host operating systems. Ensure that no unauthorized software or corporate agents (e.g., Crowd Strike, Service Now, Clear Pass, Windows Domain utilities) are installed or active on endpoints installed on the VLAN behind the Jump Host.
  • Service Availability:
    Ensure the high availability, performance, patch status, and storage capacity of jump servers acting as gateways to the core RDL networks.
  • 2. Export Control Compliance & Interactive Gates

  • Export Control Shell Banners:
    Configure and manage interactive, mandatory user agreement screens (e.g., using custom shell login scripts, Pluggable Authentication Modules (PAM), or SSH Force Command) specifically for systems accessing Export Controlled VLANs.
  • User Acceptance Verification:
    Ensure that users cannot acquire an interactive shell, run commands, or bypass the landing screen without explicitly reading and accepting the export control and NDA terms.
  • Tamper-Proof Acceptance Logging:
    Implement and maintain robust, structured logging systems (using Rsyslog, Journald, or custom secure local logging scripts) that capture:
    The authenticated user's local/remote identifier. Source IP and connection timestamp. Explicit timestamped confirmation of the user's compliance acceptance.
  • Log Archival & Integrity:
    Set up secure, write-only log forwarding or local hashing protocols to ensure audit logs of export-control acceptances cannot be modified or deleted by general users.
  • 3. Identity, Access, & Session Management

  • Decentralized Local Authentication:
    Programmatically or manually provision local Unix user accounts, localized Role-Based Access Control (RBAC), and SSH keys on all jump hosts.
  • Remote Integration Support:
    Partner with corporate IT to ensure seamless hand-offs from Zscaler ZTNA (via local Zscaler App Connectors) and Cyber Ark vPAM sessions terminating on the jump hosts.
  • Session Controls:
    Configure strict SSH timeouts, idle session terminations, and multi-factor authentication loops to prevent abandoned active connections.
  • 4. Operations, Ticket Resolution & Collaboration

  • Workplace

    Collaboration:

    Align daily with the RDL Network Administrator…
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