Job Details

Overview

Backend Engineer, Seller Growth at Whatnot. Join to apply for the Backend Engineer, Seller Growth role at Whatnot.

This range is provided by Whatnot. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.

Compensation

$190,000.00/yr - $215,000.00/yr

Responsibilities

• 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 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.

Qualifications

• Bachelor's Degree in Computer Science or related field or equivalent work experience.
• 5+ years of software engineering 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

• 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, 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

EEO

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.

Additional Details

Seniority level: Mid-Senior level

Employment type: Full-time

Job function: Engineering and Information Technology

Industries: Technology, Information and Internet

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