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 comfor
Work type: onsite
Location: San Francisco, CA | Los Angeles, CA | New York, NY | Seattle, WA
Salary: $195,000 – $290,000/yr
Type: Full-time
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.
## 🚀 Join the Future of Commerce with Whatnot!
Whatnot is the largest livestream shopping platform in North America and Europe to buy, sell, and discover the things you love. Whether it's trading cards, fashion, electronics, or live plants, our sellers are building real businesses across hundreds of categories. We're building live commerce at a scale that's never been done in the West, and there's no playbook to copy. The people here are shaping how an entirely new industry develops.
As a remote co-located team, we're inspired by our [values](https://www.whatnot.com/careers) and anchored in hubs across the US, UK, Ireland, Poland, Germany, and Australia. We move fast, stay close to our users, and focus on the work that drives the most impact.
We're one of the [fastest growing marketplaces](https://a16z.com/marketplace-100/) and were recently named the [#1 Best Startup Employer in America](http://google.com/search?q=%231+forbes+startup+employer&oq=%231+forbes+startup+employer&gs_lcrp=EgZjaHJvbWUyBggAEEUYOTIGCAEQRRg9MgYIAhBFGD0yBggDEEUYQDIGCAQQRRhAMgYIBRBFGEDSAQg1NzM0ajBqMagCALACAA&sourceid=chrome&ie=UTF-8) by Forbes. Check out the latest Whatnot updates on our [news](https://blog.teamwhatnot.com/) and [engineering blogs](https://medium.com/whatnot-engineering) and join us as we enable anyone to turn their passion into a business and bring people together through commerce.
## 💻 Role
Seller Growth is responsible for growing sellers on Whatnot — enabling them to turn their hobbies into businesses. Within Seller Growth, the Platform pod ensures that this growth is sustainable, trustworthy, and scalable.
As our next software engineer on the Seller Growth Platform pod, you will design and build the systems that sit at the heart of the new seller funnel. Your work will focus on:
We offer flexibility to work from home or from one of our global office hubs, and we value in-person time for planning, problem-solving, and connection. Team members in this role must live within commuting distance of our Los Angeles, New York, San Francisco or Seattle hub.
## 👋 You
Curious about who thrives at Whatnot? We’ve found that low ego, a growth mindset, and leaning into action and high impact goes a long way here.
As our next Backend Engineer you should have 5+ years of software engineering experience , plus:
## 💛 EOE
Whatnot is proud to be an Equal Opportunity Employer. We value diversity, and we do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, parental status, disability status, or any other status protected by local law. We believe that our work is better and our company culture is improved when we encourage, support, and respect the different skills and experiences represented within our workforce.