Fullstack Engineer, Ads
About The Position
Ads at Whatnot are both a growth lever for sellers and a revenue lever for Whatnot. When ads work, they earn seller trust by delivering real, incremental value - new buyers, new-to-category reach, and viewership that compounds. The team owns the end-to-end ads system: backend foundations, retrieval and ranking, UI and dashboards, logging, measurement, and more. The team is small - we expect engineers to be ready to own and lead major pieces of functionality independently. We work closely across the rest of the engineering org, including Discovery, Seller Growth, Data Platform, Machine Learning Platform, and Payments. We're hiring across the full ads stack — from engineers who go deep on backend systems and data to engineers who move fluidly across the stack into client and seller-facing surfaces. In either case, you'll own problems end to end and grow into new areas as the team scales. 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 New York hub.
Requirements
- 5+ years of generalist software development
- Bachelor’s degree in Computer Science, a related field, or equivalent work experience.
- Full-stack proficiency: Comfortable working across the entire stack, from mobile (iOS/Android) and web to backend systems.
- Web development experience with React, using GraphQL for API development, and modern frontend applications.
- Proven track record of building end-to-end high-scale product experiences as a full-stack engineer.
- Excellent product instincts - first think about users rather than the best technical solution.
- Ability to mentor others, and prioritize building inclusive, supportive teams.
- Strong ownership instincts and can own projects from inception to production and beyond.
- Known for shipping products and features lightning-fast.
- Excellent problem solver and can operate autonomously.
- Ability to pick up on new technologies very quickly.
- Proven track record of delivering features
Nice To Haves
- Exposure to Next.js framework
- Experience with Python on backend
- Experience with Postgres databases
Responsibilities
- Own problems end to end and grow into new areas as the team scales.
- Lead major pieces of functionality independently.
- Work closely across the rest of the engineering org, including Discovery, Seller Growth, Data Platform, Machine Learning Platform, and Payments.
- Develop a deep understanding of our product.
- Use Whatnot as both a buyer and a seller as part of their job.
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
- 16 weeks of paid parental leave + one month gradual return to work company leave allowances run concurrently with country leave requirements which take precedence.
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What This Job Offers
Job Type
Full-time
Career Level
Senior
