Software Engineer, Buyer

Software Engineer, Buyer Growth

Whatnot

$/yr - $/yr

Whatnot is the largest live shopping platform in North America and Europe, blending community, shopping, and entertainment into a unique marketplace. With hubs in the US, UK, Germany, Ireland, and Poland, we build the future of online marketplaces—one that empowers buyers and sellers to turn passion into business.

The Buyer Growth team drives top‑of‑funnel growth and first‑time buyer success, partnering with product, data, design, and marketing to create experiences that bring new users into the ecosystem and convert them into loyal customers.

Responsibilities include:

• Lead and scale critical growth initiatives such as onboarding flows, referral systems, guest browsing, and notification systems.
• Design and own end‑to‑end systems, from backend services to frontend experiences, that impact millions of users and make architectural decisions to ensure reliability, scalability, and extensibility.
• Collaborate cross‑functionally with product, marketing, and data science to identify high‑leverage growth opportunities and rapidly iterate on experiments.
• Instrument, monitor, and improve funnels to drive measurable lifts in new user conversion and retention.
• Mentor other engineers and elevate engineering excellence across the team.

We offer flexibility to work from home or any of our global office hubs. Team members in this role must live within commuting distance of our Seattle, New York City, San Francisco, or Los Angeles hub.

• 5+ years of full‑time, generalist software engineering experience in high‑growth tech companies with a track record of delivering impactful, user‑facing products autonomously.
• Bachelor’s Degree in Computer Science or related field, or equivalent work experience.
• Strong foundation in backend and frontend development, comfortable moving between layers and integrating systems end‑to‑end.
• Excellent product instincts—users first, then the best technical solution.
• Ability to take ownership of an ambiguous area and drive impact.
• Flexibility to work across multiple work streams in a fast‑paced environment.
• Preferred Qualifications:
  • Experience building e‑commerce or social products.
  • Expertise in mobile and/or full‑stack web development frameworks.
  • Familiarity with growth engineering strategies, A/B testing, and analytics.

• Flexible Time off Policy and Company‑wide Holidays (including a spring and winter break).
• Health Insurance options including Medical, Dental, Vision.
• Work‑From‑Home Support:
  • Home office setup allowance.
  • Monthly allowance for cell phone and internet.
• Care benefits:
  • Monthly allowance for wellness.
  • Annual allowance towards childcare.
  • Lifetime benefit for family planning, including adoption or fertility expenses.
• Retirement: 401(k) offering for Traditional and Roth accounts in the US (employer match up to 4% of base salary) and pension plans internationally.
• Monthly allowance to dog‑food the app, encouraging deep product understanding through ownership of the Whatnot buyer/seller experience.
• Parental Leave: 16 weeks of paid leave plus one month gradual return to work; company leave allowances run concurrently with country leave requirements.

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.