IDT

IDT

IDT Corporation provides innovative communications and payment services, connecting families, friends, and businesses globally with pioneering technologies and solutions.

Diversified Telecommunication Services
1K-5K
Founded 1990

Description

  • Own the end-to-end test strategy across LLM, speech, and telephony layers.
  • Design scenarios for multi-turn conversations, interruptions, ambiguous input, escalation, and failure recovery.
  • Build evaluation frameworks using golden datasets, semantic assertions, and automated regression detection.
  • Adversarially test hallucinations, prompt injections, guardrail bypasses, grounding errors, and data disclosure risks.
  • Provision SIP devices and endpoints and automate end-to-end call origination.
  • Diagnose issues across LLM, ASR, TTS, media, codec, and call-routing layers.
  • Expand automated coverage and integrate tests into CI/CD release gates.
  • Define and track quality metrics including task completion, containment, intent and transcription accuracy, latency, and escalation correctness.
  • Maintain traceable test coverage in the TMS and communicate data-backed quality risks.
  • Participate fully in Scrum ceremonies and maintain related artifacts.

Requirements

  • 5+ years of QA experience, including ownership of a complex integrated product.
  • Practical SIP/VoIP testing experience with call flows, signaling, media handling, softphones, or SIP trunking.
  • Ability to troubleshoot SIP traces or packet captures.
  • Strong creativity and scenario-design ability for complex conversational systems.
  • Proficiency in Python for building and maintaining automation frameworks.
  • Experience testing non-deterministic or probabilistic systems and designing assertions for variable outputs.
  • Strong analytical skills and experience defining quality metrics for release decisions.
  • Hands-on experience with formal TMS tools and Jira.
  • Professional fluency in spoken and written English, with reliable overlap with US Eastern business hours.
  • LATAM-based candidate; English CV and advanced spoken English required.
  • Preferred: LLM/conversational AI, speech technology, RAG, WebRTC/media-layer, IVR/contact-center, multilingual, or prompt-engineering experience.
  • Relevant tools include pytest, Playwright, JsSIP/WebRTC, Allure TestOps, Jenkins, GitHub Actions, and Grafana.

Benefits

  • Remote work opportunity.
  • B2B employment with competitive salary and annual performance review.
  • Stable role with long-term growth prospects.
  • Company-provided hardware.
  • Continuous learning and career growth opportunities.
  • Compensation for professional training, seminars, and conferences.
  • Company-supported English classes and employee referral rewards.

Interested in this position?

Apply directly on the company website

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