09 - Senior Lead Engineer, Software

Senior Lead Engineer, Software

Date : Oct 22, 2025

Location : San Jose, CA, US

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 Network Engineer engages with customers to understand their topology and provides suggestions, answers questions, reviews configurations, troubleshoots issues. They are also expected to participate in pre‑sales activities, assist Celestica’s Sales Engineers and Business Development teams, and author test cases using Python / Go for internal QA activities. The role requires a deep understanding of networking protocols in data center, enterprise, and campus scenarios, plus strong troubleshooting skills. Up to 50% travel required.

Detailed Description

• 10+ years of experience as a Network Engineer handling switch and router products.
• Experience on the SONiC network operating system and FRR stack.
• Design, configuration, troubleshooting, and optimization of network hardware, topologies, and deployments (DC / Enterprise / Campus).
• Deep understanding of networking concepts, architecture, topology (Places‑In‑Network), and protocols including BGP, OSPF, ISIS, VXLAN, EVPN, IGMP, DHCP, BFD, VRF, RADIUS / TACACS, NAT, multicast, QoS (RoCE V2 / DSCP), ACL, ZTP, telemetry, monitoring / analytics.
• Deep understanding of router / switch hardware architecture.
• Proficiency in Linux.
• Experience in C and scripting languages such as Python / Go.
• Direct customer interface experience.
• Experience writing technical documentation (Application Notes, FAQs, Installation Guides, User Manuals, Troubleshooting Guides).
• Ability to travel up to 50% of the time (domestic and international).
• Ability to work on a rotation basis on weekends, holidays, and off‑business hours to accommodate North America and Europe working hours.

Physical Demands

Typical Experience

Typical Education

The salary range described in this posting is an estimate by the Company and may change based on several factors, including changes in duties or credentials. Salary Range : $102k-$153k Annually.

Celestica is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, pregnancy, genetic information, disability, status as a protected veteran, or any other protected category under applicable federal, state, and local laws. This policy applies to hiring, promotion, discharge, pay, fringe benefits, job training, classification, referral, and other aspects of employment and also states that retaliation against a person who files a charge of discrimination, participates in a discrimination proceeding, or otherwise opposes an unlawful employment practice will not be tolerated. All information will be kept confidential according to EEO guidelines. Celestica is an E‑Verify employer.

Nearest Major Market : San Jose

Nearest Secondary Market : Palo Alto

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