Staff Engineer, Networking

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Date: Aug 3, 2025

Location: San Jose, CA, US

Company: Celestica International Inc.

Req ID: 123926 
Remote Position: No
Region: Americas 
Country: United States 
State/Province: California 
City:  San Jose 

Summary

We are seeking a Staff Engineer, Networking to join our Sonic NOS HDK Vertical team. This is a senior-level, hands-on engineering position focused on the development and sustenance of Network Operating Systems (NOS) for switching/routing platforms. The ideal candidate has a strong background in NOS architecture, L2/L3 protocol development, ASIC integration, and programming in C/C++.

This is a pure individual contributor (IC) role. You’ll collaborate with global engineering teams and work at the forefront of NOS software design, enabling advanced networking solutions for data center and enterprise environments.

Knowledge/Skills/Competencies

Technical Core

  • NOS Development or Sustenance
    Experience building or maintaining a NOS such as:
    • SONiC (preferred)
    • Cisco IOS, Juniper JUNOS, Arista EOS
    • Any Tier 1 proprietary or Linux-based NOS
  • L2/L3 Protocol Stack Development
    • L2: STP, LLDP, LACP, etc…
    • L3: BGP, OSPF, IS-IS, EVPN/VXLAN, MPLS, etc…
  • Programming Languages
    • Strong proficiency in C/C++ for embedded development
    • Scripting in Python and Bash for automation and test support
  • ASIC/Hardware Experience
    • Familiarity with Broadcom (DNX/XGS), Marvell, or similar ASICs
    • Experience working on hardware-software integration for networking products

Engineering Execution

  • Ability to independently design, code, debug, and validate complex NOS features
  • Hands-on experience with Linux networking subsystems
  • Comfort working with distributed source control, CI/CD workflows, and embedded build environments

Team Collaboration

  • Ability to work with geographically distributed teams (India, China, U.S.)
  • Strong written and verbal communication skills in a technical engineering context

Required Qualifications

  • Bachelor’s or Master’s degree in Computer Science, Electrical Engineering, or related field
  • 13–16 years of experience in embedded networking software development (±3 years acceptable)
  • Proven experience in Network Operating System development or sustenance
  • Hands-on background in L2/L3 networking protocols and ASIC interaction
  • Strong coding skills in C/C++, with scripting experience in Python/Bash
  • U.S. Citizenship or Permanent Residency (Green Card) required

Preferred Qualifications

  • Direct experience with SONiC NOS
  • Knowledge of open-source networking standards or AI-integrated systems

Notes

This job description is not intended to be an exhaustive list of all duties and responsibilities of the position. Employees are held accountable for all duties of the job. Job duties and the % of time identified for any function are subject to change at any time.

Celestica is an equal opportunity employer. All qualified applicants will receive consideration for employment and will not be discriminated against on any protected status (including race, religion, national origin, gender, sexual orientation, age, marital status, veteran or disability status or other characteristics protected by law).
At Celestica we are committed to fostering an inclusive, accessible environment, where all employees and customers feel valued, respected and supported. Special arrangements can be made for candidates who need it throughout the hiring process. Please indicate your needs and we will work with you to meet them.

 

COMPANY OVERVIEW:
Celestica (NYSE, TSX: CLS) enables the world’s best brands. Through our recognized customer-centric approach, we partner with leading companies in Aerospace and Defense, Communications, Enterprise, HealthTech, Industrial, Capital Equipment and Energy to deliver solutions for their most complex challenges. As a leader in design, manufacturing, hardware platform and supply chain solutions, Celestica brings global expertise and insight at every stage of product development – from drawing board to full-scale production and after-market services for products from advanced medical devices, to highly engineered aviation systems, to next-generation hardware platform solutions for the Cloud. Headquartered in Toronto, with talented teams spanning 40+ locations in 13 countries across the Americas, Europe and Asia, we imagine, develop and deliver a better future with our customers.

 

Celestica would like to thank all applicants, however, only qualified applicants will be contacted.
Celestica does not accept unsolicited resumes from recruitment agencies or fee based recruitment services.
 


Nearest Major Market: San Jose
Nearest Secondary Market: Palo Alto
Job Segment: Embedded, Testing, Open Source, Computer Science, Cloud, Technology

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