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# Principal Software Development Engineer

- **Company:** Fortinet Inc.
- **Location:** Sunnyvale, CA, United States
- **Experience:** Expert
- **Salary:** $175,000.0 - $245,000.0
- **Contract:** Permanent contract
- **Skills:** Bash Shell, Cloud Computing, Computer Programming, Software Debugging, Memory Management, Python (Programming Language), Linux Kernel, Performance Tuning, Server Administration, Software Engineering, TCP/IP, Virtualization Technology
- **Published:** October 27, 2026
- **Apply:** https://www.careerbuilder.com/job-details/principal-software-development-engineer-sunnyvale-ca--3807e060-38a4-43d2-a234-d6132c89d807

## About the Role

Software Development, Software Engineering, Operating Systems, Hardware Administration, Software Administration, Linux Kernel, Debugging Skills, Performance Tuning/Optimization, Memory Management, Input/Output, * B.S./M.S. with 8+ years of relevant experience.

 * Hands-on experience with the Linux kernel, debugging, development, performance tuning, etc.
 * Detailed knowledge of Linux kernel, scheduling, VFS, memory management, I/O, etc.
 * Detailed knowledge of Linux network internals, TCP/IP, netfilter, network driver, etc.
 * Good knowledge of processor architecture, x86, arm, etc.
 * Programming skills in C/bash/python/go.
 * Experience with virtualization/container/cloud technologies is preferred.
 * Strong communication skills and ability to work with cross-function teams.
 * Enthusiasm for system-level techniques.
 * US citizenship is required

## Description

* Troubleshoot complex, system-level, multi-component issues that across multiple layers from kernel to application.
 * Provide system-level optimizations and improvements in the OS to meet the evolving business requirements.
 * Collaborate with our hardware team to support the delivery of our new platform.
 * Maintain the existing software components, OS related.