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Staff Backend Engineer
Full Time
<p style="min-height:1.5em"><strong>Location: Remote (North America) or Austin, TX</strong></p><p style="min-height:1.5em"><strong>Employment Type: Full-time (no contractors)</strong></p><p style="min-height:1.5em"><strong>Department: Engineering</strong></p><p style="min-height:1.5em"></p><h3><strong>Why now</strong></h3><p style="min-height:1.5em">Hamming automates QA for voice AI agents. Everyone is building voice agents. We secure them. In fact, we invented this category. With one click, <strong>thousands of our agents call our customers’ agents</strong> across accents, background noise, and personalities—then we generate <strong>crisp bug reports</strong> and production-grade analytics. Reliability is the moat in voice AI, and that’s our whole job.</p><p style="min-height:1.5em">We are one of the fastest engineering teams in the world. We prod deploy 4x / day.</p><p style="min-height:1.5em">I’m looking for someone who can <strong>own reliability and scale</strong> across our LLM-enabled platform, shipping precise, outcome-driven improvements to high-availability systems.</p><p style="min-height:1.5em">— <strong>Sumanyu (CEO)</strong></p><p style="min-height:1.5em"><strong><br /></strong> Previously: grew Citizen 4× and scaled an AI sales program to $100Ms/yr at Tesla.</p><p style="min-height:1.5em"><a target="_blank" rel="noopener noreferrer nofollow" href="https://devin.ai/customers/hamming"><u>Devin Case Study</u></a></p><p style="min-height:1.5em"><a target="_blank" rel="noopener noreferrer nofollow" href="https://www.linkedin.com/posts/andrew-d-churchill_sumanyu-ceo-at-hamming-ai-had-20x-the-output-activity-7354564854029901824-jSDP?utm_source=share&utm_medium=member_desktop&rcm=ACoAAAh-eI0Bl3EbQhXGlnjcZ4TbyeByvoh32hg"><u>Ranked #1 Eng team</u></a></p><p style="min-height:1.5em"><a target="_blank" rel="noopener noreferrer nofollow" href="https://www.linkedin.com/posts/sumanyusharma_openaidevday-activity-7381718141455859712-OPhA?utm_source=share&utm_medium=member_desktop&rcm=ACoAAAh-eI0Bl3EbQhXGlnjcZ4TbyeByvoh32hg"><u>OpenAI Dev Day 100billion token list</u></a></p><p style="min-height:1.5em"></p><h2><strong>What you’ll do</strong></h2><ul style="min-height:1.5em"><li><p style="min-height:1.5em"><strong>Own core services</strong> in <strong>TypeScript/Node.js</strong> and <strong>Python</strong> that orchestrate <strong>LiveKit</strong>, <strong>Temporal</strong>, STT/TTS, and LLM tooling for real-time voice agents.</p></li><li><p style="min-height:1.5em"><strong>Scale 1 → N → 100×</strong>: take what works today and harden it for 10K parallel calls with <strong>99.99%</strong> uptime. Turn human playbooks into productized systems.</p></li><li><p style="min-height:1.5em"><strong>Harden pipelines</strong> for ingestion, evaluation, and analytics so telephony events, recordings, and outcomes propagate reliably across services.</p></li><li><p style="min-height:1.5em"><strong>Level-up observability</strong>: deepen <strong>OpenTelemetry/SigNoz</strong> and trace-first practices to shrink mean-time-to-truth in prod.</p></li><li><p style="min-height:1.5em"><strong>Prototype → test → prod</strong>: partner with product to ship new LLM-driven behaviors with clear success metrics, guardrails, and regressions blocked in CI.</p></li><li><p style="min-height:1.5em"><strong>Infrastructure readiness</strong>: CI/CD, environment automation, incident response playbooks—customer conversations stay online.<br /></p></li></ul><h2><strong>You might be a fit if you</strong></h2><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Have <strong>senior/staff</strong> experience running distributed backends with <strong>real-time/streaming</strong> constraints.</p></li><li><p style="min-height:1.5em">Are fluent in <strong>TypeScript/Node.js</strong> and comfortable jumping into <strong>Python</strong> for ML/audio jobs.</p></li><li><p style="min-height:1.5em">Know <strong>Temporal</strong> (or similar workflow engines), queues, Redis, and <strong>PostgreSQL</strong>.</p></li><li><p style="min-height:1.5em">Have <st