At ExtraHop, we're on a mission to help organizations achieve complete visibility, real-time threat detection, and proactive security through cutting-edge network detection and response (NDR) technology. Our NDR product is a market leader, providing our customers with the ability to detect, investigate, and respond to threats faster than ever before. We’re proud of the work we do and the recognition we’ve received, including our recent Gartner Peer Insights award, which reflects the trust and satisfaction our customers have in our solutions.

If you're passionate about innovation, dedicated to protecting digital infrastructures, and ready to make a real impact, we invite you to join our team and help us shape the future of cybersecurity. Position Summary

We are looking for a talented performance engineer who is enthusiastic and motivated to drive ExtraHop’s product to handle extreme and variable traffic feeds while maintaining a fast dynamic user experience. As a Software Engineer III in Performance and Tools at ExtraHop, you believe automation and rigorous testing maintain high code quality and customer satisfaction, you know how to engineer solutions that balance robustness, scalability and performance, and you own performance from the user interface down to the CPU thread. We are looking for people who have a passion for building secure and scalable systems that can operate in some of the largest and most demanding environments.

Key Responsibilities Support product performance and scalability by utilizing existing tools and managing network infrastructure to determine and push the limits.

Participate in testing scenarios that reflect real-world customer environments.

Monitor usage parameters using production telemetry.

Assist in identifying performance bottlenecks and contribute to improvements in efficiency and scalability.

Support the automation of routine performance tests to quickly identify regressions.

Collaborate with development teams to set up testing environments for new features and customer issue replication.

Continuously develop technical knowledge and learn from senior engineers.

Technical Curiosity - actively works with senior and principal engineers to continuously learn new skills and technologies.

Assist in creating new packet captures to drive performance testing with different protocols and threat profiles. Required Qualifications Minimum of 5 years of relevant experience that includes 2 years of Linux system engineering with substantial expertise in networking and databases, and at least 3 years in Linux scripting/programming (Python preferred).

Effective written and verbal communication skills.

Ability to work collaboratively within the team and across functional areas.

Work well under pressure - Work well in fast-paced, high-stress environments.

Demonstrated reliability, consistent engagement and attendance. Preferred Qualifications Technology Experience: TCP/IP networking and performance tuning

Linux OS systems management and performance tuning

Postgres database management and performance tuning

Programmatic REST API testing

Cloud/SaaS Experience (AWS/GCP/Azure) (preferably Terraform)

Virtualization platforms or containers (Docker, K8s)

Familiarity with test methodologies

Experience with Grafana/Prometheus a plus

Ability to learn from customer issues and proactively develop testing tools to prevent recurrence Experience with learning from customer issues to develop new testing tools that prevent those issues from recurring The salary range for this role is $, - $, + bonus + benefits