Founding Software Engineer — Product
RoarkAbout the role
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Founding Software Engineer — Product
Product engineering
Remote
US or Europe
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Own the surfaces our customers live in — the platform where calls are scored, issues are filed and fixes are proven. You will take features from a customer sentence to production, and you will talk to the people using what you shipped.
What you'll do
Design and build product surfaces end-to-end: Next.js/React frontend, GraphQL API, Postgres data model — schema to pixel.
Turn messy real-world workflows (test suites, issue triage, run reviews) into interfaces that feel obvious in hindsight.
Work directly with design on a system that takes craft seriously — and push back when something reads wrong.
Sit in on customer calls, watch people use your features, and ship the fix the same week.
Raise the bar on quality: tests where they earn their keep, instrumentation everywhere, no silent failures.
What you'll bring
4+ years building production web applications, with deep TypeScript and React experience.
Comfort owning a feature across the whole stack — API design, data modelling, and UI polish.
A portfolio (or war stories) showing product taste: you notice spacing, latency and empty states.
Bias to ship: you would rather put a small version in front of a user this week than a big one next month.
Clear written communication — we are remote and we write things down.
Nice to have
Experience with GraphQL (Pothos/Yoga), Drizzle, or event-driven backends.
You have built developer-facing tools, dashboards or observability products before.
Stack: TypeScript
Next.js
React
GraphQL
Postgres (Drizzle)
Bun
AWS (SST)
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Responsibilities
- Design and build product surfaces end-to-end
- Turn messy real-world workflows into interfaces
- Work directly with design on product quality
- Engage with customers to improve features
- Raise the bar on quality with testing and instrumentation
Qualifications
- 4+ years building production web applications
- Deep TypeScript and React experience
- Comfort owning a feature across the whole stack
- Strong portfolio demonstrating product taste
- Clear written communication skills
Skills mentioned
About Roark
Roark helps teams test, monitor, and improve their voice agents. Voice AI is exploding, but reliability is still the #1 challenge. Teams spend hours manually testing agents and still miss failures. In the last 6 months, Roark has processed over 10M minutes of calls, powering monitoring and simulation for teams across the Voice AI ecosystem (including YC companies). We close that gap by combining: 📊 Monitoring & Evaluation - 40+ built-in metrics (latency, instruction-follow, sentiment, etc.), custom dashboards, alerts, and the ability to define your own. Up to 15 speakers with automatic speaker identification. 🎭 Simulations & Personas - end-to-end phone/WebSocket simulations for inbound and outbound agents, with configurable personas (accents, languages, speech & behavior profiles). Define tests as conversations with a graph-based approach, so you can easily branch into edge cases and variants. 🔁 Full lifecycle loop - failed calls automatically become repeatable tests, so every failure makes your agent stronger. Roark is the missing QA layer for Voice AI - helping teams ship agents they can trust.