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Sphere

Senior Full Stack Engineer

Sphere
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onsite senior Full time $240K – $280K San Francisco HQ

First indexed 24 Apr 2026

Description

We're looking for senior full stack engineers who will own and build out new product lines such as input tax, withholding tax, e-invoicing, and tariffs as well as mission-critical parts of the Sphere platform.

Within weeks, you'll ship mission-critical features that clients will use daily, own and manage a feature, and drive measurable outcomes. You'll work directly with customers to improve and optimize key components of the platform.

Within months, you'll own the end-to-end development of new product lines that will help build out our AI-native revenue-based compliance platform. You'll lead and mentor additional engineers in component areas that you have worked in.

You'll thrive here if you're a dog who's 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.

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 listing is enriched and indexed by YubHub. To apply, use the employer's original posting: https://jobs.ashbyhq.com/sphere/a19140ed-172e-4d89-a3d8-27cdc0d369fd