What are the responsibilities and job description for the Product Engineer position at Mint Shelf?
About Mint Shelf
Mint Shelf is a marketplace for off-price and returned goods, sold by vetted sellers, not random strangers. Buyers can find deals that are 30-70% the cost of retail, starting in Austin with national expansion planned. All while keeping great products out of landfills.
Why this role
You’ll own problems end‑to‑end: talk to buyers and sellers, help define the MVP, ship to production, price and iterate, and measure what matters. You will test with real users and learn fast (our office, for example, is in a seller's warehouse where you can walk-up to any employee and ask for their thoughts and more!). You will also take regular customer support rotations to stay close to our end users!
What you’ll do
- Help build a universal app with Expo: one codebase, shared UI/UX/logic across iOS, Android, and web.
- Move quickly, ship often, and instrument everything (analytics, logging, performance, quality gates).
- Contribute to design and operations to launch flows like browsing, search, checkout, shipping/pickup, and seller tools.
- Own technical quality: accessibility, reliability, error handling, and performance budgets.
- Help maintain our lightweight project management through your own tickets, larger documents, etc.
How we work with AI
We expect curiosity and rigor about AI in product development. Use AI to research, scaffold, and refactor, but keep humans in the loop for design, security, and verification. We avoid two extremes: being completely anti‑AI OR outsourcing all thinking/work to AI. Aim for the pragmatic middle!
You might be a fit if you
- Have shipped cross‑platform apps with Expo/React Native, or any web apps with React.
- Have experience building with Cloudflare Workers and the Cloudflare ecosystem.
- Are comfortable across the stack, at least enough to contribute to discussion and occasional work in your weak areas.
- Can turn user problems into product specs and small, testable milestones.
- Value type safety, automated tests, and continuous delivery.
- Communicate crisply and default to action.
- Appreciate lightweight project management and are comfortable filling in gaps in tickets, docs, etc. either on your own (when it makes sense) or by asking others.
- Have strong opinions!
Nice to have
- Experience with React Native for Web, deep linking, push notifications, and app store delivery.
- Payments, order management, or marketplace experience.
- Observability chops: analytics schema design, event quality, error budgets.
- Database design, API design, etc.
Our environment
- Early and product‑led. You will own outcomes more than tickets.
- Design‑lean. Engineers help with product shaping and UX states.
- Data‑driven. Success is defined by user value and measurable impact.
- Fun, healthy, and hard-working but reasonable. We've experienced burnout and brutal working places before, avoiding such outcomes is always top-of-mind for us.
Compensation
Meaningful early‑employee equity and salary. Final offer based on experience and scope of impact.
Interview process
- Quick intro call
- Portfolio walkthrough, product deep dive, Q&A, etc.
- Team interviews and reference checks
If you ship things users love, we should talk.