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Senior Lead Systems Software Engineer (Networking)

Celestica International LP

Austin, TX(remote)

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JOB DETAILS
SKILLS
ASIC (Application Specific Integrated Circuit), Aerospace and Defense, Analysis Skills, Architectural Services, Aviation Industry, Best Practices, Broadband, C Programming Language, C++ Programming Language, Calculators, Capital Equipment, Cloud Computing, Computer Mouse Hardware, Cross-Functional, Data Entry, Debugging Skills, Detail Oriented, High Reliability, High Throughput, Identify Issues, Integrated Circuits (ICs), Kernel Programming, Layer 3 Protocols, Linux Operating System, Manufacturing, Medical Equipment, Medical Products, Mentoring, Multiplatform/Cross-Platform, Network Integration, Network Operating Systems, Network Protocols, Network Routing, Network Switching, Performance Tuning/Optimization, Problem Solving Skills, Product Development, SAP, Scalable System Development, Software Design, Software Engineering, Supply Chain, System Architecture, Systems Analysis, Systems Engineering, Systems Scalability, Systems/Internals Programming, Technical Leadership
LOCATION
Austin, TX
POSTED
1 day ago
Req ID: 129015
Remote Position: No
Region: Americas
Country: USA
State/Province: Texas
City: Austin

General Overview

Functional Area: Engineering
Career Stream: Design - Software Engineering
SAP Short Name: SLE-ENG-DSE
Job Level: Level 09
IC/MGR: Individual Contributor
Direct/Indirect Indicator: Indirect

Summary

The Senior Lead Systems Software Engineer (Networking) is a highly experienced individual contributor responsible for designing, developing, and optimizing core components of a Network Operating System (NOS) for high-performance networking platforms. This role operates at the intersection of software and hardware, with a strong focus on low-level systems development, Layer 2/Layer 3 networking, and ASIC integration.

This position plays a critical role in building scalable, high-throughput networking solutions, contributing to architecture decisions, and driving complex technical initiatives across the platform. The engineer is expected to work independently, influence design direction, and mentor other engineers while maintaining hands-on ownership of key deliverables.

Detailed Description

  • Design, develop, and enhance core NOS components, including control plane and data plane functionality
  • Implement and optimize Layer 2 and Layer 3 networking protocols (e.g., routing, switching, VXLAN, EVPN)
  • Integrate and work closely with ASIC vendors (e.g., Broadcom, Marvell) using SAI/SDK interfaces
  • Contribute to SONiC-based or similar open networking platforms
  • Debug and resolve complex issues spanning hardware, kernel, and user-space components
  • Analyze and optimize system performance, scalability, and reliability in high-speed networking environments (100G/400G+)
  • Participate in system architecture and design discussions, providing technical leadership and direction
  • Collaborate cross-functionally with hardware, platform, and validation teams to ensure seamless integration
  • Drive end-to-end ownership of features, from design through deployment and support
  • Mentor junior engineers and contribute to overall team technical growth
  • Contribute to best practices in coding, design, and system-level troubleshooting


Technical Knowledge

    • Strong proficiency in C/C++ systems programming
    • Deep understanding of networking fundamentals, especially Layer 2 and Layer 3 protocols
    • Experience with Network Operating Systems (SONiC or similar)
    • Hands-on experience with ASIC integration, including SAI and vendor SDKs
    • Strong knowledge of Linux systems, including kernel and networking stack
    • Understanding of high-performance and scalable system design principles


Skills

  • Advanced debugging and problem-solving across distributed and low-level systems
  • Ability to design and implement scalable, high-performance networking solutions
  • Strong analytical thinking and ability to troubleshoot complex issues
  • Effective cross-functional collaboration with hardware and software teams
  • Ability to translate architecture into implementation with strong attention to detail


Compentencies

  • Operates as a technical leader, influencing design and architectural direction
  • Demonstrates strong ownership and accountability for business-critical systems
  • Ability to work independently with minimal guidance on ambiguous problems
  • Strong mentorship and knowledge-sharing mindset
  • Focus on quality, scalability, and long-term maintainability
  • Comfortable working in a fast-paced, innovation-driven environment


Physical Demands

  • Duties of this position are performed in a normal office environment.
  • Duties may require extended periods of sitting and sustained visual concentration on a computer monitor or on numbers and other detailed data.
  • Repetitive manual movements (e.g., data entry, using a computer mouse, using a calculator, etc.) are frequently required.
  • Occasional travel may be required.


Typical Experience

  • 6 to 12 years


Typical Education

Bachelor degree or consideration of an equivalent combination of education and experience.

Educational Requirements may vary by Geography

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.

About the Company

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Celestica International LP

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