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Lead Network & Security Architect

Job in Richardson, Dallas County, Texas, 75085, USA
Listing for: Celestica
Full Time position
Listed on 2026-10-22
Job specializations:
  • IT/Tech
    Cybersecurity, Network Security, Systems Engineer, Network Engineer
Job Description & How to Apply Below
Req  Region:
Americas Country: USA State/Province:
Texas City:  Richardson Summary We are seeking a highly experienced and meticulous Lead Network & Security Architect to join the IT Support team for the Hardware Platform Solutions (HPS) group. In this role, you will take ownership of our global Research and Development Lab (RDL) reference architecture and drive its deployment, management, and scaling across all current and future HPS Design Centers.

The successful candidate will be responsible for implementing and maintaining a completely isolated, air-gapped network environment that operates independently of standard corporate IT networks. You will manage complex secure access paths, isolated VLAN provisioning, private full-mesh SD-WAN overlays, and a multi-tiered global data package replication and distribution system. You will also serve as the key enablement architect, helping project teams quickly spin up new project-specific instantiations of the RDL network model while adhering to strict security constraints

Core Responsibilities
1. Architectural Implementation & Governance Deploy Reference Architecture:
Standardize and implement the RDL reference design across all global HPS design locations .Support New Instantiations:
Act as the primary technical design authority to spin up new RDL network instances for upcoming HPS design projects.

Strict Constraint Enforcement:
Maintain absolute isolation of the RDL environments. Ensure zero direct or indirect public internet connectivity and guarantee that out-of-scope systems or agents are strictly excluded from the lab network.
2. Network Infrastructure & Security SD-WAN & Routing:
Design, configure, and maintain the private, full-mesh SD-WAN overlay connecting global RDL sites.

Secure Firewalling:
Configure and administer enterprise-grade firewalls protecting the perimeter of each localized lab, defining strict ingress/egress filtering rules.

Switching & Segmentation:
Manage core and access layer switches to segment the RDL into logical, multi-tenant VLAN environments—specifically separating Export Controlled and Non-Export Controlled network zones.
3. Identity and Remote Access Management Remote Customer Access:
Oversee the implementation and administration of virtual privileged access management for remote customer connections.

Corporate Remote Access:
Configure and maintain zero trust network access.

Decentralized Authentication:
Design and maintain a secure user management protocol on jump hosts and local RDL nodes. As the RDL operates without Windows Active Directory, you will define standard operating procedures for the manual/programmatic creation of local system accounts and localized role-based access control (RBAC).4. Secure Data Package Management & Dev Ops Repo Architecture Repository Architecture:
Maintain the multi-tier secure data distribution system:

IT Repository Server:
Internet-facing ingestion nodes to securely pull packages, drivers, and applications.

Global Repository Server:
The middle-layer relay that acts as a secure, scanned transit point between the corporate IT network and the isolated RDL network.

RDL Local Repository Server:
Localized instances inside the labs that pull from the Global Repo and host files locally over HTTP/HTTPS at /var/(Use the "Apply for this Job" box below). Automation:
Ensure seamless, secure, programmatically validated transfer of "transfer bundles" containing operating system packages (Rocky, Ubuntu, CentOS, etc.) across the air gap.

Security Scans & Compliance:
Coordinate with corporate IT and security teams to execute periodic vulnerability scanning and patching of repository servers, ensuring all packages undergo integrity checks before reaching the inner RDL network

Knowledge/Skills/Competencies Required…
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