Join Vonage and help us innovate cloud communications for businesses worldwide
What You Will Do
Define and lead the performance engineering strategy across high-availability, cloud-native telecom platforms.
Lead, train, and coordinate a distributed guild of SDETs across multiple feature teams, guiding them to build, maintain, and execute performance scripts (k6) within their fractional sprint capacity.
Design, develop, and evolve scalable backend performance frameworks using k6, Python, Java, or TypeScript, focusing entirely on APIs, databases, and infrastructure.
Implement and manage production traffic replay strategies (e.g., GoReplay) and complex multi-tenant test data generation to accurately recreate realistic production contention and load profiles.
Own and drive performance, load, stress, endurance, scalability, and resilience testing, including chaos engineering practices (e.g., using AWS Fault Injection Simulator).
Validate real-time communication systems, event-driven architectures (Kafka, RabbitMQ),
and high-throughput distributed systems under production-like conditions.
Integrate performance testing into CI/CD pipelines , enabling continuous performance validation, shift-left practices, and automated PR blocking for latency degradation.
Leverage observability tooling (Grafana, CloudWatch, Coralogix, VictoriaMetrics, PMM) to monitor, analyse, and troubleshoot system performance.
Establish performance benchmarks , SLAs, SLOs, and error budgets aligned with business and system requirements.
Collaborate with architecture and data teams to identify bottlenecks, validate database architectures (e.g., MySQL, Tungsten), and present evidence-based investment proposals.
Analyse and optimise performance across both legacy monolith systems (requiring integrated load testing) and modern microservices architectures.
What You Will Bring
Proven experience mentoring and coordinating testing efforts across large, distributed engineering teams (e.g., conducting code re
📌 Lead Performance Tester (Madrid)
🏢 Vonage
📍 Madrid