Duo Security, now part of Cisco, is the leading multi-factor authentication (MFA) and secure access provider.
Duo + Cisco = Disco
With the Most Loved Company in Security and the global leader in network technology joining forces, there are more exciting opportunities than ever to be at the forefront of securing the cloud.
Our mission is simple: democratize security by making it easy and effective for everyone. We're transforming security from the ground up by solving the world's most pressing geopolitical challenge - safe, secure information access. We engineer our business to enable our customers to easily address their ever-evolving security challenges.
We believe that impactful work is rewarding work and that our team is at its best when everyone feels empowered to bring their whole self to work. We learn together by hiring for cultural contribution, not cultural fit, and recognize that diversity in background and thought are essential to building high-impact teams.
We invest in growth and learning opportunities and encourage our people to never stop learning. We foster collaboration and believe in being recognized (and rewarded!) for hard work. We champion a healthy work-life balance. We're kinder than necessary.
Together we build for the future by designing simple solutions for complex problems. And that's why we're the most loved and trusted name in security.
Who you'll work with...
The Senior Performance Engineer is passionate about software performance and reliability of software systems, and understands the metrics that drive performance behavior in software systems, and can build frameworks and tooling to help repeatable performance testing. Our Senior Performance Engineer works with many teams, helping build standard methodologies in performance testing across the organization, collect feedback on how to improve our performance test framework, and critically evaluate requests to determine priority for implementation. We expect a strong development background as you will spend 60% or more of your day writing code for our python based framework. Ideal candidates will have strong experience with performance metrics collections and developing performance testing frameworks, combined with the ability to tune code, database queries, no sql optimizations, distributed tracing, and operating system parameters. You will be responsible for building strong relationships with engineering teams, site reliability teams and partners.
What you'll do...

• Be a champion for Performance Testing in the organization
• Be an advocate for Resilient and Scalability of Systems
• Extend our performance engineering framework designing for ease of use for our Engineers
• Be a partner for engineering and provide standard methodologies, tools for performance optimization and make suggestions for engineering to trend towards
• Define, measure and publish meaningful metrics to measure product and build performance and help teams improve them.
• Understand priorities and risks and help focus our quality build efforts on where they matter the most.
• Work with mobile apps, backend Linux services, SAAS products, etc, thus growing the breadth and depth of your knowledge
• Learn on the job every single day and become the best Engineer you possibly can be!

Skills you have...

• Strong Software Development Background to build and extend our python performance framework, understand our product architecture and APIs, make recommendations
• Work on projects up to a 1 quarter time horizon and impact Performance Testing across the Engineering Organization.
• Understanding of various technologies, standard methodologies, performance tuning, and impact on production traffic
• Methodical and able to fix performance issues for a root cause
• Provide recommendations and solutions to performance issues found in product
• Communicate Performance Results that are practical to engineers and understood by management
• Performance tools like locust (preferred), gatling, tsung, jmeter, k6.
• Performance Metrics for consumption by engineers, customers and industry tooling (AppDynamics, DynaTrace, DataDog, etc.)
• Experience with distributed applications and tracing
• Deep knowledge of performance resources - CPUs, Main Memory, Storage Devices, Controllers, Interconnects. Knowledge of eBPF is a plus
• Hand on experience with Python, MySql, Redis, kafka, docker, kubernetes
• Traffic and Data generation
• Solid Linux skills
• Scripting and strongly typed Languages like python (preferred), bash, ruby, go, java, c#, swift
• Cloud experience (AWS preferred) and cloud automation tooling (Ansible, AWS API, terraform etc.)
• Deep curiosity of how our product works to help drive performance testing to new limits

Does this sound like it was written for you? Excellent! Please apply and let's explore this together.
Duo is committed to cultivating and preserving a culture of inclusion and connectedness. We are able to grow and learn better together with a diverse team of employees. The collective sum of the individual differences, life experiences, knowledge, innovation, self-expression, and talent that our employees invest in their work represents not only part of our culture, but our reputation and Duo's achievement as well. In recruiting for our team, we welcome the unique contributions that all potential candidates can bring in terms of their education, opinions, culture, ethnicity, race, gender identity and expression, nationality, age, languages spoken, veteran's status, religion, disability, sexual orientation and beliefs.
And if this role is exciting to you, we encourage you to apply even if you don't meet all 100% of the description or qualifications. Finally and most importantly, we are a proud Equal Opportunity Employer.
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