Software Engineer, Developer Infrastructure
quilt
HQ - Redwood City, CA · HQ - Redwood City · United States
Posted Mar 4, 2026
- Full-time
- Hybrid
- Software Engineering
quilt
HQ - Redwood City, CA · HQ - Redwood City · United States
Posted Mar 4, 2026
Location: Redwood City, CA (Hybrid — 3 days/week in office)
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.
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.
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.
We need to build the factory that builds the code.
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.
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.
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.
Build the Verification Machine (50%)
You'll own the infrastructure that gives our team fast, reliable signals on whether their code works.
Make Testing Easy (35%)
The best test infrastructure is one that every engineer actually uses. You'll make it effortless to write and run tests.
Strengthen Release Confidence (15%)
We’d love to speak with you if:
Bonus points for:
In 3 months:
In 6 months:
In 12 months:
At Quilt, we support live products with real customers depending on us, we have the technical complexity of an established company with the resources of a startup, and AI is making code generation nearly free while verification remains expensive. The engineer in this role will be the single biggest lever for getting us out of that middle. You're not writing features; you're building the foundation that lets every feature ship.
If you've read about "harness engineering" or the idea that engineering leadership is shifting from writing code to building the systems that enable code to be written, tested, and shipped with confidence — that's this job. You can find more information about how we’re thinking about this matter here.
We are a growing team of ambitious people who truly care about the impact of their work. We are on a mission to accelerate a species-level human transition. For over a million years, we've been burning things to stay warm. It's time to move to a better way of living.
At Quilt, we're on a mission to make clean, efficient heating and cooling accessible to everyone — and we know that heat pumps can play a big role in creating healthier, more climate-resilient homes. But the reality is, climate change and outdated energy systems don't impact everyone equally. That's why we're building a diverse, inclusive team — because we believe the best solutions come from people with different lived experiences and perspectives. We welcome teammates of all races, ethnicities, genders, identities, abilities, and backgrounds, and we're committed to creating a workplace where everyone feels empowered to shape the future of climate tech.
Need accommodations during the hiring process? No problem — just let us know. We're here to support you. (accessibility@quilt.com)
Compensation
This is a full-time, hybrid position working out of our Redwood City office. Candidates must be able to commute to the office at least 3 days a week.
We are not able to offer relocation assistance for this role.
The expected base annual salary range for this role is $150,000–$200,000, depending on experience. In addition to base salary, Quilt also offers meaningful equity and top-tier health benefits.
Don't meet 100% of the requirements? That's okay, apply anyway! If you're excited about this role and think you could bring something unique to the team, we encourage you to apply, even if your experience doesn't match perfectly. We'd love to hear from you.