QA Engineer

Key Responsibilities

Full-Stack Application Testing

• Test Node.js backend services, REST APIs, event-driven flows, and message integrations.
• Validate React.js UI elements, workflows, form inputs, accessibility, and client-side behavior.
• Perform integration, regression, smoke, and end-to-end testing across the platform.
• Validate Azure cloud components: Functions, App Services, APIM routing, Blob Storage flows, Service Bus, Event Hub.

AI LLM Testing

• Test conversational workflows, prompt-based logic, and LLM output accuracy.
• Validate guardrails, safety filters, context handling, and functional correctness of AI-driven features.
• Compare outputs against expected variations and ensure responses stay within acceptable tolerance.
• Collaborate with AI engineers on test data, model behaviors, and edge-case scenarios.

Voice/Telephony Testing (Telnyx or Similar)

• Execute end-to-end testing on voice flows, call routing, SIP events, call control sequences, and DTMF.
• Validate speech-to-text behavior, audio prompts, and latency for voice automation flows.
• Use tools such as SIPp, Telnyx Call Control APIs, webhook simulations, or similar frameworks.
• Troubleshoot call failures, webhook mismatches, or vendor-side issues with third-party support teams.

Automation CI/CD Integration

• Develop and maintain automated test scripts for UI, API, and cloud workflows.
• Work with the QA Lead to integrate automated tests into GitHub Actions or Azure DevOps pipelines.
• Ensure consistent test execution across dev, QA, staging, and production environments.

• Selenium Automation (UI testing)
• Postman / Restassure(functional API suites)
• SIPp (voice testing)

Third-Party Integration Testing

• Validate integrations with external vendors, APIs, voice platforms, AI services, identity providers, etc.
• Review external API specs, SDK updates, and release changes.
• Coordinate test data and end-to-end flows with third-party technical teams.
• Identify and escalate integration bugs that require cross-company collaboration.

Documentation Reporting

• Create test cases, test plans, and automated test documentation.
• Report defects clearly with full logs, reproducible steps, and technical insights.
• Support the QA Lead in triage meetings and sprint release planning.
• Track quality metrics such as test coverage, bug trends, and release stability.

Required Skills Experience

• 6+ years of experience as a QA Engineer or SDET.
• Strong testing background with:
  • Node.js APIs microservices
  • React.js front ends
  • Azure cloud components (Functions, App Services, APIM, Service Bus, Storage)
• Hands-on automation experience with at least one major framework (Cypress, Playwright, Jest, Mocha).
• Experience testing AI-driven features or conversational workflows (LLMs preferred).
• Voice testing experience using Telnyx, Twilio, Vonage, or similar CPaaS providers.
• Familiarity with GitHub Actions and/or Azure DevOps pipeline execution.
• Strong ability to troubleshoot logs, API flows, and complex cross-service interactions.
• Excellent communication and documentation skills.

Preferred Qualifications

• Experience with SIPp for SIP/DTMF/IVR automation.
• Knowledge of CI/CD test gating and test data automation.
• Experience with performance or load testing for distributed systems.
• Agile/Scrum testing experience.