Lead SDET – Telecom Performance & Scalability

Confirmed live in the last 24 hours

Vonage

Wrocław, Poland

On-site

Posted March 26, 2026

Job Description

Join Vonage and help us innovate cloud communications for businesses worldwide!

What You Will Do

Design, develop, and maintain scalable automated test frameworks using Python and TypeScript ( Playwright)
Build and execute end-to-end, API, integration, and regression test suites
Lead performance, load, stress, scalability testing, and chaos engineering across high-availability telecom platforms
Validate real-time communication systems and event-driven architectures

Test and verify cloud-native applications deployed within AWS environments
Ensure systems meet performance, resilience, scalability, and availability standards
Integrate automated testing into CI/CD pipelines to enable continuous delivery
Collaborate with Engineering, DevOps, and Product teams within Agile ceremonies
Identify performance bottlenecks, architectural risks, and quality gaps early
Contribute to the continuous improvement of QA processes and engineering standards

What You Will Bring

• Strong experience testing telecommunications or CPaaS platforms
• Proven hands-on experience with AWS cloud services (e.g., EC2, ECS/EKS, Lambda, RDS, API Gateway, S3)
• Strong automation development skills in Typescript and Python.
• Solid experience with performance testing tools (e.g., JMeter, k6, Gatling)
• Experience testing distributed systems, microservices, and high-throughput APIs
• Strong understanding of QA principles within Agile/Scrum environments
• Experience embedding testing into CI/CD pipelines
• Strong analytical and problem-solving capability
• Ability to work effectively within distributed/global teams
• Excellent working knowledge of SIPp (Session Initiation Protocol), including hands-on experience generating high volumes of SIP calls for load, stress, and scalability testing.

Experience working with Ribbon Communications telecom infrastructure, including SBC configuration, SIP routing validation, and performance testing within carrier-grade environments.

Required

Demonstrable hands-on automation experience in Python and TypeScript