Software Developent Engineer in Test (SDET)

Confirmed live in the last 24 hours

Vonage

Wrocław, Poland

Hybrid

Posted March 26, 2026

Job Description

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

Vonage's Applications:

Our Applications business unit focuses on delivering a suite of advanced communication tools designed to enhance customer engagement. From cloud contact centers to feature-rich unified communications solutions, our Applications team is dedicated to providing businesses with the tools they need to streamline operations and improve customer experiences.

Why this role matters:

Vonage is looking for a hands-on SDET (Mid–Senior Level) to strengthen automation engineering across our modern microservices-based communications platform.
This role is deeply technical and delivery-focused. You will design and implement scalable automation solutions across UI, API, performance, and mobile layers, ensuring quality is embedded throughout the SDLC.

As part of the QA Centre of Excellence (QA COE), you will collaborate with engineering squads to build reliable, CI/CD-ready automation frameworks and promote best practices in BDD, microservices testing, and observability.

Your key responsibilities:

Automation Engineering

Design, develop, and maintain scalable test automation frameworks.
Build UI automation using Playwright (TypeScript).
Implement BDD practices using Cucumber/Gherkin.
Generate structured reporting and living documentation using Serenity.
Develop robust API automation for REST and GraphQL services.
Contribute to mobile automation using Appium (Android/iOS).
Ensure test frameworks are modular, maintainable, and optimised for parallel execution.
Integrate automation into CI/CD pipelines (Jenkins, GitHub Actions, GitLab CI, CircleCI, or internal tools).

Microservices & API Quality

Validate distributed systems across a microservices architecture.
Implement: contract testing, schema validation, authentication/authorization testing and resilience/failure scenarios
Contribute to SLA/SLO validation and service-level reliability checks.
Collaborate with engineers to improve testability and observability.

Performance & Reliability

Develop and maintain performance and load tests using K6 (TypeScript).
Integrate performance testing into CI/CD pipelines.
Analyse performance metrics using: Grafana, Prometheus, AWS CloudWatch Datadog
Partner with SRE and Platform teams to identify performance bottlenecks and reliability risks

Collaboration & Continuous Improvement

Actively participate in Agile ceremonies.
Work closely with Developers, DevOps, Product Owners, and Release teams.
Maintain documentation in Confluence and track work in Jira.
Provide visibility through Serenity reports and CI dashboards.
Contribute to evolving QA engineering standards within the QA COE.

What you'll bring

Required:

5–8 years of experience in automation engineering or SDET roles.
Strong hands-on experience with: Playwright (TypeScript), API automation (REST/GraphQL) and BDD frameworks (Cucumber/Gherkin)
Experience working within AWS-based environments.
Strong understanding of distributed systems, microservices testing.
Experience integrating automation into CI/CD pipelines.
Working knowledge of performance testing with K6.
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