Principal Software Engineer

Sorry, this job was removed at 03:10 p.m. (CST) on Thursday, May 08, 2025
Be an Early Applicant
Seattle, WA
In-Office
182K-273K Annually
Cloud • Information Technology • Security • Software
The Role

At F5, we strive to bring a better digital world to life. Our teams empower organizations across the globe to create, secure, and run applications that enhance how we experience our evolving digital world. We are passionate about cybersecurity, from protecting consumers from fraud to enabling companies to focus on innovation. 
 

Everything we do centers around people. That means we obsess over how to make the lives of our customers, and their customers, better. And it means we prioritize a diverse F5 community where each individual can thrive.

Position Summary

F5 sits between the Internet and some of the largest companies on Earth. We keep their applications running fast, safe, and efficiently. Our hardware and software products are highly configurable and blazingly fast. The Drivers’ team at F5 is looking for a Principal Software Engineer who is well versed with designing, developing, and testing network drivers for a scalable, distributed, and carrier grade software solution. This team owns the low-level network drivers for high performance packet processing in the BIG-IP’s data-plane. BIG-IP is F5’s flagship Application Delivery Controller. The data-plane pod either runs inside a virtual machine or directly in a customer’s native Kubernetes deployment. The network drivers developed by this team are used for a variety of paravirtualized interfaces, SR-IOV virtual functions, and F5’s FPGAs.

Primary Responsibilities

  • Serve as the technical expert for network driver design and architecture.
  • Drive analysis of requirements.
  • Assist manager and architect with project estimates.
  • Liaise with cross-functional teams to ensure that project is delivered in its entirety.
  • Act as a mentor for junior members of the team
  • Design and implement network drivers and test automation for them.
  • Research, investigate, and define new areas of technology to enhance existing products or identify new product directions.
  • Conduct presentations internally and externally.
  • Participate in hiring and onboarding process.
  • Uphold F5’s Business Code of Ethics.

The Job Description is intended to be a general representation of the responsibilities and requirements of the job. However, the description may not be all-inclusive. Responsibilities and requirements are subject to change.

Knowledge, Skills, and Abilities

  • Must have a strong C development background.
  • Must have experience and knowledge of networking protocols, architecture, and technologies.
  • Experience with Linux user space and kernel space driver development.
  • Experience with DPDK’s network PMDs.
  • 8+ years’ programming experience.
  • Well-versed in containerization solutions (like Kubernetes).
  • Well-versed in microservices architecture.
  • Well-versed in GitLab and/or similar repository solution.
  • Excellent analytical and debugging skills.
  • Ability to manage ambiguity in work.
  • Ability to present ideas verbally and in-writing with clarity and precision.

Qualifications

Typically requires a minimum of 10 years of related experience with a Bachelor’s degree; or 8 years and a Master’s degree; or a PhD with 5 years’ experience; or equivalent experience.

Equal Employment Opportunity

It is the policy of F5 to provide equal employment opportunities to all employees and employment applicants without regard to unlawful considerations of race, religion, color, national origin, sex, sexual orientation, gender identity or expression, age, sensory, physical, or mental disability, marital status, veteran or military status, genetic information, or any other classification protected by applicable local, state, or federal laws. This policy applies to all aspects of employment, including, but not limited to, hiring, job assignment, compensation, promotion, benefits, training, discipline, and termination.  F5 offers a variety of reasonable accommodations for candidates. Requesting accommodation is completely voluntary. F5 will assess the need for accommodation in the application process separately from those that may be needed to perform the job. Request by contacting [email protected].

#LI-ZB1

The Job Description is intended to be a general representation of the responsibilities and requirements of the job. However, the description may not be all-inclusive, and responsibilities and requirements are subject to change.

The annual base pay for this position is: $181,774.00 - $272,660.00

F5 maintains broad salary ranges for its roles in order to account for variations in knowledge, skills, experience, geographic locations, and market conditions, as well as to reflect F5’s differing products, industries, and lines of business. The pay range referenced is as of the time of the job posting and is subject to change.

You may also be offered incentive compensation, bonus, restricted stock units, and benefits. More details about F5’s benefits can be found at the following link: https://www.f5.com/company/careers/benefits. F5 reserves the right to change or terminate any benefit plan without notice. 

Please note that F5 only contacts candidates through F5 email address (ending with @f5.com) or auto email notification from Workday (ending with f5.com or @myworkday.com).

Equal Employment Opportunity

It is the policy of F5 to provide equal employment opportunities to all employees and employment applicants without regard to unlawful considerations of race, religion, color, national origin, sex, sexual orientation, gender identity or expression, age, sensory, physical, or mental disability, marital status, veteran or military status, genetic information, or any other classification protected by applicable local, state, or federal laws. This policy applies to all aspects of employment, including, but not limited to, hiring, job assignment, compensation, promotion, benefits, training, discipline, and termination.  F5 offers a variety of reasonable accommodations for candidates. Requesting an accommodation is completely voluntary. F5 will assess the need for accommodations in the application process separately from those that may be needed to perform the job. Request by contacting [email protected].

Similar Jobs

Pfizer Logo Pfizer

Principal Software Engineer

Artificial Intelligence • Healthtech • Machine Learning • Natural Language Processing • Biotech • Pharmaceutical
Hybrid
8 Locations
121990 Employees
141K-261K Annually

Anduril Logo Anduril

Principal Software Engineer

Aerospace • Artificial Intelligence • Hardware • Robotics • Security • Software • Defense
In-Office
2 Locations
6000 Employees
191K-336K Annually

Domino Data Lab Logo Domino Data Lab

Principal Software Engineer

Artificial Intelligence • Machine Learning
Easy Apply
Remote or Hybrid
US
200 Employees
225K-250K Annually

eClinical Solutions Logo eClinical Solutions

Principal Software Engineer

Cloud • Healthtech • Professional Services • Software • Pharmaceutical
Easy Apply
Remote or Hybrid
United States
400 Employees
152K-190K Annually
Get Personalized Job Insights.
Our AI-powered fit analysis compares your resume with a job listing so you know if your skills & experience align.

The Company
HQ: Seattle, WA
5,847 Employees

What We Do

F5 application services ensure that applications are always secure and perform the way they should—in any environment and on any device.

F5 (NASDAQ: FFIV) powers applications from development through their entire life cycle, across any multi-cloud environment, so our customers – enterprise businesses, service providers, governments, and consumer brands—can deliver differentiated, high-performing, and secure digital experiences.

Similar Companies Hiring

Scotch Thumbnail
Software • Retail • Payments • Fintech • eCommerce • Artificial Intelligence • Analytics
US
25 Employees
Milestone Systems Thumbnail
Software • Security • Other • Big Data Analytics • Artificial Intelligence • Analytics
Lake Oswego, OR
1500 Employees
Fairly Even Thumbnail
Software • Sales • Robotics • Other • Hospitality • Hardware
New York, NY

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account