Quilt is a Redwood City-based startup that builds software-driven, customizable residential heat pump systems.
<p><span style="font-family: verdana, geneva, sans-serif; font-size: 12pt;"><strong>Location:</strong><span style="font-weight: 400;"> Redwood City, CA (Hybrid — 3 days/week in office)</span></span></p> <h2><span style="font-family: verdana, geneva, sans-serif; font-size: 14pt;"><strong>The Mission</strong></span></h2> <p><span style="font-weight: 400; font-family: verdana, geneva, sans-serif; font-size: 12pt;">Our mission is to move humanity off of fossil fuel heating. 20% of US global warming emissions come from homes (that's more than cars!). The largest driver of home emissions is burning fossil fuels for heat. To stop climate change, over 80M US homes need to transition from combustion to efficient, electric heat pumps over the coming decades.</span></p> <p><span style="font-weight: 400; font-family: verdana, geneva, sans-serif; font-size: 12pt;">We believe for this to happen the world needs fantastic products that are easy to purchase. Today's heat pumps lack great design, make limited use of software, and are difficult and stressful to adopt. We are building a next generation, beautifully designed, AI optimized home heating and cooling system that is 10x better than what is on the market today.</span></p> <h2><span style="font-family: verdana, geneva, sans-serif; font-size: 14pt;"><strong>The Problem</strong></span></h2> <p><span style="font-weight: 400; font-family: verdana, geneva, sans-serif; font-size: 12pt;">AI agents can generate code 100x faster than humans. But at Quilt, generating code was never the bottleneck, verifying it is. We build software that runs on physical hardware in people's homes. A bug isn't a broken pixel; it's a family without heat. Our code spans embedded C++ on custom devices, cloud infrastructure, and mobile apps. Right now, too much of our verification depends on a human walking to a test bench and pressing a button.</span></p> <p><span style="font-weight: 400; font-family: verdana, geneva, sans-serif; font-size: 12pt;">We need to build the factory that builds the code.</span></p> <p><span style="font-weight: 400; font-family: verdana, geneva, sans-serif; font-size: 12pt;">We're looking for a software engineer to own our developer infrastructure: the simulators, test harnesses, CI/CD pipelines, and verification systems that let our engineering team (and our AI agents) ship fast with confidence. Your work will directly determine how quickly Quilt can move: not by writing features, but by making every feature easier to build, test, and trust.</span></p> <h2><span style="font-family: verdana, geneva, sans-serif; font-size: 14pt;"><strong>The Role</strong></span></h2> <p><span style="font-weight: 400; font-family: verdana, geneva, sans-serif; font-size: 12pt;">This is a high-leverage infrastructure role. You'll be the engineer who makes every other engineer on the team more productive. You'll build the systems that close the feedback loop between code generation and code verification, so that an engineer (or an agent) can write a change, get an automated signal on whether it works, and iterate without waiting on manual testing.</span></p> <p><span style="font-weight: 400; font-family: verdana, geneva, sans-serif; font-size: 12pt;">We already have hardware-in-the-loop test rigs and some device simulators in place. Your job is to expand them, make them robust, and build the scaffolding that lets the whole team write and run tests with minimal friction.</span></p> <h2><span style="text-decoration: underline;"><span style="font-family: verdana, geneva, sans-serif; font-size: 14pt;"><strong>What You'll Do</strong></span></span></h2> <p><span style="font-family: verdana, geneva, sans-serif; font-size: 12pt;"><strong>Build the Verification Machine (50%)</strong></span></p> <p><span style="font-weight: 400; font-family: verdana, geneva, sans-serif; font-size: 12pt;">You'll own the infrastructure that gives our team fast, reliable signals on whether their code works.</span></p> <ul> <li style="font-weight: 400; font-family: verdana, geneva, sans-serif; font-size: 12pt;"><span style="font-weight: 400; font-family: verdana, geneva, sans-serif; font-size: 12pt;">Design and extend device simulators and mocks that reduce our dependency on physical hardware for testing</span></li> <li style="font-weight: 400; font-family: verdana, geneva, sans-serif; font-size: 12pt;"><span style="font-weight: 400; font-family: verdana, geneva, sans-serif; font-size: 12pt;">Build and maintain CI/CD pipelines across embedded, cloud, and mobile (GitHub Actions, Bazel)</span></li> <li style="font-weight: 400; font-family: verdana, geneva, sans-serif; font-size: 12pt;"><span style="font-weight: 400; font-family: verdana, geneva, sans-serif; font-size: 12pt;">Extend our hardware-in-the-loop (HIL) test infrastructure for device commissioning, OTA updates, and telemetry validation</span></li> <li style="font-weight: 400; font-family: verdana, geneva, sans-serif; font-size: 12pt;"><span style="font-weight: 400; font-family: verdana, geneva, sans-serif; font-size: 12pt;">Automate the manual test scenarios that currently block releases (pairing flows, firmware upgrades, cloud integration)</span></li> <li style="font-weight: 400; font-family: verdana, geneva, sans-serif; font-size: 12pt;"><span style="font-weight: 400; font-family: verdana, geneva, sans-serif; font-size: 12pt;">Debug and eliminate flaky tests, CI must be a source of truth, not noise</span></li> </ul> <p><span style="font-family: verdana, geneva, sans-serif; font-size: 12pt;"><strong>Make Testing Easy (35%)</strong></span></p> <p><span style="font-weight: 400; font-family: verdana, geneva, sans-serif; font-size: 12pt;">The best test infrastructure is one that every engineer actually uses. You'll make it effortless to write and run tests.</span></p> <ul> <li style="font-weight: 400; font-family: verdana, geneva, sans-serif; font-size: 12pt;"><span style="font-weight: 400; font-family: verdana, geneva, sans-serif; font-size: 12pt;">B