Whatnot · 18 hours ago
Software Engineer, Seller Growth
Seattle, WA
Full-time
Hybrid
Senior Level
$195K/yr - $290K/yr
5+ years expWhatnot is the largest live shopping platform in North America and Europe, redefining e-commerce by blending community, shopping, and entertainment. The Software Engineer on the Seller Growth Platform Pod will design and build systems that ensure sustainable and trustworthy growth for sellers, focusing on fraud protection, platform intelligence, and scalable infrastructure.
CollectiblesE-CommerceInformation TechnologyMarketplaceTrading Platform
Responsibilities
Design And Build The Systems That Sit At The Heart Of The New Seller Funnel
Protecting the funnel from fraud and abuse: Developing and scaling systems for identity verification (IDV), fraud detection, and automated trust/risk reviews that safeguard buyers while minimizing friction for good sellers
Balancing growth with trust and safety: Ensuring that the thousands of new sellers joining weekly can sell successfully without degrading the buyer experience, while preventing bad actors from gaining distribution or abusing incentives
Building platform intelligence: Powering accurate seller identification (e.g., enrichment data, signals, and predictive LTV models) to route sellers to the right onboarding, incentive, and discovery paths
Creating scalable infrastructure: Partnering with Data Science and Trust teams to design reusable trust and reputation systems, modular fraud prevention frameworks, and experimentation platforms that other pods and teams across Whatnot can leverage
Driving long-term seller success: Enabling better bucketing of sellers by value and risk profile, ensuring that high-potential sellers are accelerated early, while low-quality or fraudulent sellers are contained before they reach scale
Qualification
Required
5+ years of software engineering experience
Bachelor's Degree in Computer Science or related field or equivalent work experience
Experience building scalable systems (we primarily use Python, Elixir, JavaScript)
Ability to work across the stack (backend and frontend)
Excellent product instincts. You first think about users rather than the best technical solution
Proven track record of delivering features. You are known for shipping products and features lightning-fast
Ability to take ownership of an ambiguous area and define and then drive impact
Ability to flexibly work across multiple workstreams, thriving in a fast-paced environment
Knowledge of data and growth systems like notifications
Scalability and data pipeline experience with SQL, dbt, etc
Benefits
Generous Holiday and Time off Policy
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, such as adoption or fertility expenses
Retirement; 401k offering for Traditional and Roth accounts in the US (employer match up to 4% of base salary) and Pension plans internationally
Monthly allowance to dogfood the app
Parental Leave
16 weeks of paid parental leave + one month gradual return to work
Company
Whatnot
Whatnot is a livestream shopping platform for buying and selling products.
501-1000 employees
H1B Sponsorship
Whatnot has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (34)
2024 (20)
2023 (18)
2022 (10)
Funding
Current Stage
Late StageTotal Funding
$974.7MKey Investors
CapitalGY Combinator Continuity FundAndreessen Horowitz
2025-10-28Series F· $225M
2025-01-08Series E· $265M
2022-07-21Series D· $260M
Leadership Team
Jeff Chang
Director of Engineering, Head of Growth
Recent News
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2026-01-09
Global Cosmetics News
2025-12-31
2025-12-26
Company data provided by crunchbase