Demo

Principal Software Development Engineer

Candidate Experience site
Sunnyvale, CA Full Time
POSTED ON 4/24/2026
AVAILABLE BEFORE 6/24/2026

As a Principal Software Engineer, you will:

  • Work with developers within the team and on other cross-functional projects, as well as project management to drive, develop, and maintain the product
  • Develop and maintain software components on current and future products
  • Hands on in bug fixing current products
  • Implement software features of high quality and on schedule
  • Integrate, maintain, and improve both 3rd-Party and proprietary code.
  • Design and implement core systems and frameworks, as well new features that build off them
  • Communicate effectively, both verbal and written

 

We Are Looking For:

  • Minimum of 10 years of experience in networking related software development
  • B.S. in Computer Science or Electrical Engineering; M.S. highly preferable
  • Strong C/C experience in Unix/Linux in environment are essential
  • Strong understanding of REST API semantics and their application in networking appliances
  • Experience in using libcurl for formulating REST API calls
  • Experience with JSON data objects and their creation and parsing semantics
  • Experience with multi process/thread programming using Posix and System 
  • Solid grasp of networking fundamentals, specifically TCP/IP networking, switching and routing
  • Solid understanding of principles of network management
  • Knowledge of general QA procedures and methodologies as well as software development fundamentals
  • Experience with embedded systems is a plus
  • Experience with networking principles is a plus
  • Experience with firewall configurations and operation is a plus

 

Must be authorized to work in the U.S. without sponsorship.

The US base salary range for this full-time position is $200,500 - $260,500. Fortinet offers employees a variety of benefits, including medical, dental, vision, life and disability insurance, 401(k), 11 paid holidays, vacation time, and sick time as well as a comprehensive leave program.

Wage ranges are based on various factors including the labor market, job type, and job level. Exact salary offers will be determined by factors such as the candidate's subject knowledge, skill level, qualifications, experience, and geographic location.

All roles are eligible to participate in the Fortinet equity program, Bonus eligibility is reviewed at time of hire and annually at the Company’s discretion.

 

Why Join Us:
We encourage candidates from all backgrounds and identities to apply. We offer a supportive work environment and a competitive Total Rewards package to support you with your overall health and financial well-being. Embark on a challenging, enjoyable, and rewarding career journey with Fortinet. Join us in bringing solutions that make a meaningful and lasting impact to our 660,000 customers around the globe

Salary : $200,500 - $260,500

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