NOS TEST ENGINEER jobs in United States
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Celestica · 4 hours ago

NOS TEST ENGINEER

positionSan Jose, CA
timeFull-time
remoteOnsite
senioritySenior Level
money$90K/yr - $134K/yr
date7+ years exp

Celestica is a leader in design, manufacturing, and supply chain solutions, partnering with top brands across various industries. They are seeking a highly motivated NOS Test Engineer with extensive experience in testing network operating systems, responsible for developing test strategies, executing test plans, and automating test cases. The ideal candidate will have a strong background in Layer 2/3 protocols and a passion for continuous learning in the field.

ElectronicsManufacturingProduct DesignSupply Chain Management
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H1B Sponsor Likelynote

Responsibilities

Developing comprehensive test strategies
Executing complex test plans
Performing system-level and interoperability testing
Automating test cases using Python integrated with CI/CD pipelines
Building and managing test topologies for real-world simulation and interoperability testing
Conducting functional, integration, regression, and performance testing
Providing detailed bug reporting and analysis
Collaborating effectively with cross-functional engineering teams

Qualification

Network Operating Systems (NOS)Layer 2/3 protocolsTest automation using PythonCI/CD integrationNetwork traffic generatorsSystem-level testingTest strategiesPlansAnalytical skillsRelevant certificationsExposure to GenAICommunication skillsCollaboration skillsContinuous learning

Required

Bachelor's or Master's degree in Computer Science, Electronics, or a related technical field
7–12 years of hands-on experience in QA or test engineering, specifically within networking products
Proven experience in end-to-end software development lifecycle with a focus on QA and system testing
Deep understanding of Layer 2/3 networking protocols (e.g., VLAN, STP, BGP, OSPF, EVPN-VXLAN)
Strong proficiency in developing and executing test strategies, plans, and cases
Hands-on experience with test automation development using Python
Familiarity with integrating automated tests into CI/CD pipelines
Experience with system-level and performance testing (stability, HA, fault tolerance)
Proficient with network traffic generators like Ixia or Spirent
Strong written and verbal communication skills
Ability to collaborate effectively with cross-functional engineering teams

Preferred

Relevant networking certifications (e.g., CCNA, CCNP, JNCIS, JNCIP)
Exposure to GenAI technologies is a plus

Company

Celestica

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Celestica is a manufacturing firm that provides design, hardware platform, and supply chain solutions to a multitude of industries.
dateFounded in 1994
location
Toronto, Ontario, CAN
people-size10001+ employees
web-link
https://www.celestica.com/

H1B Sponsorship

Celestica has a track record of offering H1B sponsorships. Please note that this does not guarantee sponsorship for this specific role. Below presents additional info for your reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (13)
2024 (3)
2023 (6)
2020 (3)

Funding

Current Stage
Public Company
Total Funding
$1.47B
2024-06-20Post Ipo Debt· $657.67M
2023-06-05Post Ipo Secondary· $148.8M
2021-09-30Post Ipo Debt· $660.4M

Leadership Team

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Robert Mionis
President and CEO
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Jonathan Baksh
Vice President Finance, Advanced Technology Solutions (ATS)
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Company data provided by crunchbase