Software Engineer, Seller Growth at whatnot

This role is ideal for a mid-to-senior level backend engineer (5+ years experience) who thrives at the intersection of growth and security. You should be comfortable building scalable systems—specifically for fraud detection, identity verification, and data pipelines—within a high-speed marketplace environment. While primarily a backend role focused on "Seller Growth," you’ll need the versatility to work across the stack and a strong product sense to prioritize user experience over technical perfection. The compensation is highly competitive, reaching up to $290,000 per year, and comes with a robust benefits package including a 4% 401k match and generous "dogfooding" credits to use the platform. While the team values in-person collaboration in major hubs like SF, NYC, LA, or Seattle, they offer a "remote co-located" model with significant home-office support and wellness allowances. **You might be a good fit if you:** * Have experience building fraud prevention or identity systems at scale. * Are proficient in Python, Elixir, or JavaScript and skilled with SQL/dbt. * Prefer a "ship fast" culture where you take full ownership of ambiguous product areas. * Want to build infrastructure that directly impacts seller retention and marketplace trust.