Vonage

Lead SDET – Telecom Performance, Scalability

Vonage

full-time

Posted on:

Location Type: Remote

Location: Spain

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Job Level

Senior

Tech Stack

AWSCloudDistributed SystemsEC2JMeterMicroservicesPythonTypeScript

About the role

  • 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

Requirements

  • 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.
Benefits
  • There’s no perfect candidate. You don't need all the preferred qualifications to make a valuable impact on our team. Our employees and customers come from diverse backgrounds, so if you're passionate about what you could achieve at Vonage, we'd love to hear from you.
  • To learn how we process your personal data during the recruitment process, please refer to our Privacy Notice.
  • Who we are: Vonage is a global cloud communications leader. And your talent will further help brands - such as Airbnb, Viber, WhatsApp, and Snapchat - accelerate their digital transformation through our fully programmable-based unified communications, contact center solutions, and communications APIs. Ready to innovate? Then join us today.
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
PythonTypeScriptPlaywrightAPI testingintegration testingregression testingperformance testingload testingstress testingchaos engineering
Soft Skills
analytical skillsproblem-solvingcollaborationcommunicationcontinuous improvement