Lead SDET - Performance Testing

The role

You will own the performance, scalability and reliability of HighLevel's products as a technical lead on the SDET platform team. You will build shared performance tooling and set the performance direction across product teams.

What you will do

• Build and evolve a shared performance testing framework and production-like environments (Kubernetes, cloud, test data)
• Integrate performance checks into CI/CD with agreed thresholds and publish trend reports for release decisions
• Define the performance strategy and roadmap, including SLIs, SLOs and baselines for critical services
• Model workloads from production traffic and run load, stress, soak and spike tests across backend and frontend
• Lead capacity planning ahead of peak events
• Lead root cause analysis of bottlenecks across frontend, API, database and queue layers
• Evaluate new tools and approaches through PoCs and decide what to adopt
• Mentor SDETs and developers on performance-aware design and testing

Required qualifications

• 8+ years in performance, scalability or reliability engineering or testing, with measurable impact on production-scale distributed systems
• Deep hands-on experience with k6, Gatling or Locust, including realistic workload modeling and distributed load generation
• Strong programming skills in Python, JavaScript/TypeScript or Java
• Experience with observability tooling such as New Relic, Prometheus/Grafana or OpenTelemetry
• Solid grasp of REST service performance, concurrency and caching
• Hands-on runtime profiling and thread or heap analysis on the JVM or Node.js
• Hands-on frontend performance experience: Core Web Vitals, Lighthouse and real user monitoring
• Experience designing performance gates in CI/CD with stable baselines and clear pass/fail thresholds
• Working knowledge of Kubernetes and at least one major cloud (GCP, AWS or Azure)
• Experience leading performance work across multiple teams, setting direction and influencing without direct authority

Nice to have

• Experience applying AI-assisted tooling to test design or result analysis
• Experience with NoSQL or search datastores and message brokers at scale
• Chaos or resilience testing, and safe testing in production (canaries, shadow traffic)

Before you apply

• The posting includes an Equal Opportunity Employer statement and invites voluntary demographic information that does not affect application status

About the company

HighLevel is an AI-powered business operating system serving over 1 million businesses across 150+ countries. The company has over 2,000 team members across 10+ countries and operates as a global, remote-first organization.