Sphere

Founding Product Engineer

Sphere
On-site senior Full time $230K – $280K • Offers Equity San Francisco HQ
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First indexed 8 Mar 2026

Description

Compensation

$230K – $280K • Offers Equity

ABOUT SPHERE

Every breakthrough in trade infrastructure has followed the same pattern: reduce a transaction cost, expand the market. Containerization for goods. SWIFT for money. Stripe for payments. Compliance is one of the last and largest — and the hardest, because trade rules aren't data to be looked up. They're a complex adaptive system with 190+ sovereign jurisdictions, in different languages, changing constantly, reacting to each other.

THE ROLE

CX has an unusually high importance in a product like Sphere. Trust is of utmost importance when handling a company's payments and tax obligations. As a result, every user experience, modal, button, export needs to be flawless (would you trust Stripe with your payments if it was full of bugs and inconsistencies?).

Sphere is looking for a passionate founding product engineer to own our CX, take it to the next level and help build out new features / products on our roadmap.

WHAT YOU'LL DO

Within weeks:

  • Work / listen to many of our customers on what their main pain points are and prioritize lowest hanging fruit features that can help solve their problems
  • Collaborate extensively with design on bringing those features to life
  • Executing and shipping features, end-to-end, on a daily basis
  • Doing customer support where necessary to understand our customers and how they think as much as possible

Within months:

  • Own Sphere's CX and make it unique
  • Own feature / product roadmap in conjunction with the CEO / Founder (you will work a lot together)
  • Build / implement more rigorous customer feedback / analysis processes to allow us to better prioritize roadmap

REQUIREMENTS

  • Strong experience with React. Our entire front end is built in react.
  • Strong experience with Figma. In order to collaborate efficiently with design.
  • Customer obsession. You’re going to be talking to a lot of people in the finance realm (Controller, Heads of Finance, Heads of Tax). You need to like them and obsess over them.
  • Very strong attention to detail. When you work with numbers this is a non-negotiable - it’s not enough to be 99% right.
  • Strong organization skills. We get hundreds of feature requests every day. How you monitor, organize and prioritize these is key.

NICE TO HAVES

  • Experience working with large volumes of transaction data. You’ll be getting very familiar with it!
  • Experience in Python and Django. Our core application backend and data pipeline services are built with Python and Django
  • Experience using tools like PostHog and Sentry

WHO YOU ARE

You'll thrive here if:

  • You're a Dog. You've been underestimated, gone through struggle, and never stopped running. You have a chip on your shoulder and enormous drive. You look at Stripe, Deel, and Flexport all punting on compliance and think: good, that means the opportunity is ours. Hunger beats pedigree.
  • Early stage is in your bones. You’ve built things where there’s no playbook and nobody handing you the answer. You define the problem instead of waiting for instructions.
  • You own it end to end. Give you a goal and you figure out your own path. Small team, global surface area — everyone owns a domain that would be a full team at a larger company. No one tells you how.
  • You believe speed and accuracy are both possible. We’re building a complex product that requires robustness and 100% uptime, and we have to build at our customers’ pace. Move fast. Don’t break things. Both.
  • Being in the room is a feature, not a cost. Five days in SF isn’t a policy, it’s how the work gets done. The speed and density of collaboration we need doesn’t survive over video.

This won’t be a fit if:

  • You need structure handed to you or ambiguity feels draining rather than motivating
  • You want to manage people more than own hard problems (we’re a flat, experienced team — everyone builds)
  • You’re used to “good enough” shipping (small errors have outsized impact here)
  • Being in the room five days a week feels like a cost instead of a benefit
This listing is enriched and indexed by YubHub. To apply, use the employer's original posting: https://jobs.ashbyhq.com/sphere/bfa759a9-f19a-4030-959e-9e29d81d6879