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Engineering

QA Engineer

  • Full-Time
  • In-Office: Downtown Los Angeles, CA
  • Engineering
  • 3+ years
  • $130,000–$165,000 + equity
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Summary

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.

What you'll do

  • 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.

What we're looking for

  • 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.

Nice to haves

  • 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.

Why Guava

  • 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.

Benefits

  • Competitive base salary and early-stage equity.
  • Medical, dental, and vision coverage.
  • 401(k) with employer match.
  • Flexible paid time off.
  • Paid parental leave.
  • Top-tier equipment and the tools you need to do your best work.

Guava is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. We do not discriminate on the basis of race, color, religion, sex, sexual orientation, gender identity or expression, national origin, age, disability, veteran status, or any other protected characteristic. If you need a reasonable accommodation during the application or interview process, please let us know at hiring@goguava.ai.

In accordance with California pay-transparency law, the range shown on this posting reflects the pay we reasonably expect to offer for the role. Where a candidate lands within the range depends on job-related factors including experience, skills, and qualifications.

Applicants must be authorized to work in the United States. Research shows some candidates only apply when they meet every requirement. There is no perfect candidate. If you are excited about this role and believe you can bring value to the team, we encourage you to apply even if your experience does not line up with every point above.