QA Engineer

Compensation: $130,000 – $165,000 + equity

Guava is the voice platform built for regulated industries — the calls that have to be right. Trained on 10B+ live agent minutes and in regulated production since 2013, Guava gives enterprises a single, compliant system for every second of a call. We serve healthcare systems, banks, insurance carriers, BPOs, and tech-native companies that need voice infrastructure they can stake their business on.

Reliability, latency, and audio quality aren't nice-to-haves here — they're the product. Every conversational flow, every API integration, and every real-time voice pipeline has to hold up under real usage before it reaches a customer, and that's where QA comes in.

Guava is looking for a QA Engineer to own quality across our voice agent platform. You will design and execute test strategies for conversational flows, real-time audio pipelines, and the APIs developers build on — catching issues before they reach production and helping the team ship fast without breaking things.

This is a hands-on role that blends manual exploratory testing — talking to and stress-testing voice agents — with building durable automated test coverage.

• Design, write, and maintain test plans for voice agent conversational flows, including edge cases, interruptions, accents, and noisy audio conditions.
• Build and maintain automated test suites for backend APIs and integrations (regression, functional, and end-to-end).
• Benchmark AI systems for quality and performance.
• Test real-time voice pipelines end-to-end — ASR, TTS, latency, and call quality — across telephony integrations (SIP/PSTN) and supported platforms.
• Partner with engineering during feature development to define acceptance criteria and catch issues pre-release.
• Own release regression testing and sign-off before deploys.
• Track, triage, and clearly document bugs; work with engineers through resolution and verification.
• Monitor production quality signals (call success rate, latency, failure modes) and flag regressions.
• Help build out QA process and tooling as the team and platform scale.

• 3+ years of experience in QA, SDET, or a related software testing role.
• Experience testing APIs and backend services, and writing test automation (e.g., Python, pytest, Postman/Newman, or similar).
• Strong exploratory testing instincts — comfortable digging in without a fully scripted test case.
• Clear, precise bug reports and comfort working directly with engineers to resolve them.
• Solid understanding of CI/CD and how automated testing fits into a release pipeline.
• Based in or willing to work from Guava's Downtown Los Angeles (Arts District) office.

• Experience testing voice, audio, or telephony systems (IVR, contact center, or conversational AI products).
• Experience owning backwards compatibility for a public SDK — designing and maintaining a version compatibility matrix, building contract tests that catch breaking changes in CI, and defining deprecation policy.
• Familiarity with load/performance testing tools.

• Own quality for a voice AI platform running in real, regulated production — not a research demo.
• Direct access to engineering leadership; no layers.
• Join a technical team building the reliability and audio quality the product depends on.
• Full health, dental, vision; employer 401(k) match; PFL/CFRA-compliant parental leave; flexible PTO.

Guava is an equal opportunity employer. We welcome applicants of all backgrounds and are committed to building a diverse and inclusive team.