Lead Test and Customer Support Engineer, Network & Security – AI Data Center

Celestica

Lead Network and Security Compliance Test Engineer responsible for validating network functionality and security at Celestica's AI data center in Richardson, TX.

Posted 4/28/2026full-timeRichardson • Texas • 🇺🇸 United StatesSeniorWebsite

Tech Stack

Tools & technologies

AWSAzureCloudDockerFirewallsGoogle Cloud PlatformKubernetesLinuxPython

About the role

Key responsibilities & impact

Lead the development and execution of comprehensive test plans and strategies for complex network topologies and devices within our AI data center.
Drive the design of advanced test cases for L2/L3 functionalities, focusing on performance, scalability, and resilience under high-demand AI workloads.
Oversee and conduct in-depth testing of routing protocols (e.g., BGP, OSPF, ISIS) to validate network convergence, stability, and optimal traffic flow.
Analyze and interpret complex test data to identify network bottlenecks, performance degradation, and areas for optimization.
Architect and implement robust security test methodologies to rigorously validate network security controls and configurations.
Perform advanced vulnerability assessments, penetration testing, and security audits on network infrastructure to proactively identify and mitigate risks.
Ensure strict adherence to internal security policies and external regulatory compliance standards (e.g., NIST, ISO 27001, GDPR) relevant to data center networking.
Develop and integrate automated security compliance checks into continuous integration and deployment pipelines.
Design, develop, and maintain sophisticated test automation frameworks and scripts primarily using Python, significantly enhancing test efficiency, coverage, and repeatability.
Champion the adoption of automation best practices across the team.
Develop custom tools and utilities to simulate complex network conditions and analyze performance.
Provide expert-level troubleshooting and root cause analysis for complex network and security incidents, collaborating effectively with cross-functional engineering and operations teams.
Actively participate in network architecture reviews, offering critical insights to ensure testability, reliability, and security are built into designs from inception.
Mentor and guide junior test engineers, fostering their technical growth and promoting a culture of quality and innovation.

Requirements

What you’ll need

Direct, hands-on experience with SONiC OS in a production or large-scale test environment.
Working experience or strong familiarity with OCP (Open Compute Project) networking principles and hardware designs.
Experience with software-defined networking (SDN) and network function virtualization (NFV) concepts and testing.
Proven experience with network security tools and methodologies (e.g., firewalls, IDS/IPS, access control, encryption).
Familiarity with cloud networking concepts (AWS, Azure, GCP).
Experience with Linux system administration and container orchestration (Docker, Kubernetes).

Benefits

Comp & perks

Health insurance
401(k) matching
Flexible work hours
Paid time off

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

test planstest casesrouting protocolsBGPOSPFISISvulnerability assessmentspenetration testingtest automation frameworksPython

Soft Skills

leadershipcollaborationmentoringtroubleshootingroot cause analysiscommunicationcritical thinkinginnovationquality assurancetechnical growth

Certifications

NISTISO 27001GDPR