Senior Performance Engineer; Remote

Job Summary

As the largest online distributor of restaurant supplies and equipment, Webstaurant Store offers a catalog of more than 430,000 products supported by fast, reliable shipping. Nearly all our technological design, development, and system management are handled in-house, allowing us to build custom, innovative solutions in a rapidly evolving e‑commerce landscape. Due to this continued growth, we’re seeking a Senior QA Performance Engineer to join our team.

This is a high‑visibility role with reach across all active development initiatives, working closely with both engineering and leadership to shape performance strategy as the organization grows. You’ll have broad impact across our full product portfolio, owning performance testing end‑to‑end across web and mobile applications as we scale our infrastructure and containerized deployments.

• Use JMeter to perform load and performance testing on web and mobile applications.
• Collect necessary performance targets and/or KPIs from stakeholders’ pre‑performance execution.
• Design, script and execute load, stress, and scalability testing and deliver comprehensive reports to the project team.
• Collaborate on performance related test cases to execute and provide necessary data to peers for bug entry.
• Report issues discovered during performance evaluation and work closely with the engineering team to analyze the issues and track them to resolution.
• Keep abreast of current performance testing methodologies, and work autonomously to update tools, skills, and techniques.
• Mentor Mid and Junior Engineers on Performance Testing best practices.
• Work with leadership in Performance Testing Strategizing and Planning.
• Create and update existing documentation.
• Estimate the Level of Effort needed to test and complete tasks.

• Work is performed while sitting/standing and interfacing with a personal computer.
• Requires the ability to communicate effectively using speech, vision, and hearing.
• Requires the regular use of hands for simple grasping and fine manipulations.
• Requires occasional bending, squatting, crawling, climbing, and reaching.
• Requires the ability to occasionally lift, carry, push, or pull medium weights, up to 50lbs.

• Access to a reliable and secure high‑speed internet connection. Cable or fiber internet connections (at least 75mbps download/10mbps upload) are preferred, as satellite connections often cannot support the technologies used to perform day‑to‑day tasks.
• Access to a home router and modem.
• A dedicated home office space that is noise- and distraction-free. The space should have strong wireless connection or a wired Ethernet connection (wired connection is preferred, if possible).
• A valid, physical address (apartment, suite, etc.). PO Boxes are not supported, as a physical address is required for you to receive your computer equipment.
• The desire and ability to work and communicate with other team members via chat, webcam, etc.
• Legal residents of one of the following states: (AK, AL, AR, AZ, CT, DE, FL, GA, IA, , IN, KS, KY, LA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NM, NV, OH, OK, PA, SC, SD, TN, TX, UT, VA, VT, WI, WV, or WY). H-1B Visa Sponsorship Not Available, W2 only.

• 5+ years of performance test simulations and/or experience in performance analysis, web‑based enterprise applications.
• Experience installing, configuring, and using the performance testing tool JMeter, as well as performance monitoring tools such as Grafana.
• Experience in designing test scenarios and load profiles based on application functionality and usage patterns.
• Proficiency in an object‑oriented programming language (C#.NET or Java).
• Knowledge of load testing and performance testing concepts and methods as applied in a C#.NET application environment.
• Knowledge of infrastructure components (servers, network, load balancers, switches, firewalls, etc.).
• Solid understanding of throughput, latency, memory and CPU utilization.
• Advanced SQL knowledge.
• Strong knowledge of source control tools, like GIT.
• Ability to effectively establish and maintain working relationships with all levels of the organization.
• Experience with…