×
Register Here to Apply for Jobs or Post Jobs. X

Sr Software Development Engineer - Testing and Performance

Job in Seattle, King County, Washington, 98127, USA
Listing for: F5 Networks, Inc.
Full Time position
Listed on 2025-12-11
Job specializations:
  • Software Development
    Software Engineer, DevOps, Software Testing, Cloud Engineer - Software
Salary/Wage Range or Industry Benchmark: 150000 - 200000 USD Yearly USD 150000.00 200000.00 YEAR
Job Description & How to Apply Below
Sr Software Development Engineer - Testing and Performance page is loaded## Sr Software Development Engineer - Testing and Performance remote type:
Hybrid locations:
Seattle:
Liberty Laketime type:
Full time posted on:
Posted Yesterday job requisition :
RP1035148

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  The System Integration team is looking for an experienced software engineer with a passion for quality and a strong foundation in performance testing, networking concepts, and test automation.  In this role, you will have the opportunity to work with various teams from product marketing to development engineers.  The role will involve performance testing as well as test design and automation of TMOS and F5OS applications.
An ideal candidate will have experience or knowledge in these areas.  The person in this role will be working as part of a US multi-site team that values strong collaboration and support of our teammates in a diverse and inclusive environment, leveraging AI to enhance productivity and foster creative problem-solving.

Primary Responsibilities
* Experience in handling performance regression and debugging failures to find product bugs.
* Works both independently and with principal engineers to develop high-quality test automation that verifies system level features.
* Emphasis in this position will be in traffic automation design and automation.
* Executes, analyzes and evaluates test results, reports and assists in resolution of product issues.
* Participate actively in code review process; posting reviews; incorporating feedback along with reviewing automation submitted by other team members for adherence to coding standards
* Develops expertise in features and components of the product to understand how to design test automation to verify the feature.

Knowledge and Skills
* Experience with developing Python-based test automation frameworks to validate F5 BIG-IP or F5OS products preferred.  Background in TMM a plus.
* Solid understanding of software quality methodologies and processes.
* Expertise with container technologies (e.g. Kubernetes, Docker, etc.)
* Experience with CI/CD and project management tools (e.g. Git, Gitlab, Jira, Bugzilla, etc)
* Experience with RESTful API development, JSON, and microservice architectures.
* Able to collaborate and thrive in a fast-paced high-performance environment.
* Knowledge of IP networking:  routing, switching, and network standards from layer 1 through the transport and application layers.
* Strong organizational skills, analytical skills, attention to detail and excellent problem solving/troubleshooting skills.
* Strong networking knowledge, working knowledge of HTTP, DNS, TCP/IP required.
* Ability to balance multiple projects as once in a high paced environment

Required Qualifications:

* Experience working with TMOS or F5OS.
* Masters or Bachelor’s degree in Computer Science, Software Engineering, or equivalent field or work experience.
* Experience in writing traffic automation using industry-standard traffic generators such as Ixia.
* Experience in the testing and/or development of computer software.

Preferred Qualifications:

* Preferably in the Linux environment using Python.
* Track record of building automation scenarios that validate product requirements and execute customer scenarios with reliability and stability.
* Experience working with geographically dispersed teams preferred.
* Work experience in performance testing is a plus.

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 View & Apply for jobs on this site that accept applications from your location or country, tap the button below to make a Search.
(If this job is in fact in your jurisdiction, then you may be using a Proxy or VPN to access this site, and to progress further, you should change your connectivity to another mobile device or PC).
 
 
 
Search for further Jobs Here:
(Try combinations for better Results! Or enter less keywords for broader Results)
Location
Increase/decrease your Search Radius (miles)

Job Posting Language
Employment Category
Education (minimum level)
Filters
Education Level
Experience Level (years)
Posted in last:
Salary