Rewst · 1 month ago
Senior Performance Test Engineer
United States
Full-time
Hybrid
Senior Level
$130K/yr - $150K/yr
7+ years expRewst is a tool designed for Managed Service Providers (MSPs) to streamline and automate their processes. As a Senior Performance Test Engineer, you will own performance, load, resilience, and scalability testing strategies for the core systems that power our automation platform.
Information TechnologyRobotic Process Automation (RPA)RoboticsSoftware
Responsibilities
Design, build, and execute scalable performance and load testing strategies to validate infrastructure changes, multi-tenant behavior, database performance, and resource utilization under realistic and extreme conditions
Ensure systems scale efficiently by testing Kubernetes autoscaling, connection pooling, queue saturation, and regional workloads
Develop and automate performance regression tests, smoke tests, and reliability checks integrated into CI/CD pipelines to support anytime deployment readiness
Validate monitoring, alerting, and dashboard accuracy for production readiness. Ensure early-warning signals exist for performance degradation and capacity risks
Partner closely with Platform, SRE, and DevOps engineers to ensure testing aligns with architectural decisions and operational requirements. Support incident postmortems and translate learnings into preventative test coverage
Evaluate and implement performance tools, metrics generation, and automation frameworks that improve testing efficiency and coverage
Perform stress, failover, and chaos testing to assess system resilience and validate reliability under failure scenarios
Drive enhancements in testing processes, quality metrics, and automation capabilities to increase confidence in production deployments and reduce incident frequency
Qualification
Required
7–10+ years in QA engineering, SRE, or software development with a focus on performance and reliability testing
Expertise with tools such as LoadRunner, k6, JMeter, or similar frameworks
Proficiency in Javascript/Typescript for scripting and automation; experience with Bash and CI workflows
Hands-on experience testing containerized applications and cloud-native architectures
Strong working knowledge of AWS services (EKS, RDS, S3, networking fundamentals)
Experience integrating tests into pipelines (GitHub Actions, CircleCI, Jenkins, etc.)
Familiarity with PostgreSQL performance metrics, query optimization, and connection pooling, or other relatable database experience
Ability to clearly articulate findings through documentation and collaboration with engineering teams
Strong root cause investigation skills and a proactive mindset toward issue prevention
Preferred
Familiarity with Kubernetes autoscaling (KEDA), Helm, and container orchestration best practices
Experience validating observability tooling such as Prometheus, Grafana, Loki, Mimir, SigNoz, or Sentry
Exposure to RabbitMQ, distributed messaging, and multi-tenant workload simulations
Experience with high-availability systems and disaster recovery testing
Previous work in a startup or high-growth SaaS environment
Robotic Process Automation (RPA) experience
Benefits
Competitive compensation package including benefits and equity opportunities
Competitive compensation package, including equity options and benefits
Flexible work arrangements and a supportive work-life balance
Company
Rewst
Rewst develops a robotic process automation technology for smaller managed services providers.
51-200 employees
Funding
Current Stage
Growth StageTotal Funding
$124MKey Investors
Sapphire VenturesMeritech Capital PartnersOpenView
2024-08-07Series C· $45M
2024-08-06Secondary Market
2023-12-22Series B· $31M
Leadership Team
Aharon Chernin
Founder & CEO
Nick Hagianis
CTO
Recent News
Company data provided by crunchbase