Fullstack Engineer, Ads

Whatnot
New York, San Francisco, Los Angeles, Seattle
Workplace: HybridFull timeUSD 207,000 - 230,000 annuallyFunction: Software EngineeringEducation: bachelorsSkills: ["Ownership","Product thinking","Problem-solving","Autonomy","Mentoring"]

Own the end-to-end ads system, from backend foundations and data retrieval/ranking to UI dashboards, logging, and measurement. Work as a generalist across the full ads stack, collaborating with teams across Discovery, Seller Growth, Data Platform, Machine Learning Platform, and Payments. You’ll deliver high-scale, incremental value for sellers by shipping features end-to-end, moving quickly, and growing into new technical areas as the team scales.

Loading

Loading job details...

Preparing the role view and application actions.

FursaFursa
Whatnot
Whatnot
6 days ago

Fullstack Engineer, Ads

✓ Verified Job

Canonical indexed version, validated from employer's careers page.

Source: Company careers pageValidated by: Fursa AI
Last checked: 2 hours agoStatus: Live

Job Summary

Own the end-to-end ads system, from backend foundations and data retrieval/ranking to UI dashboards, logging, and measurement. Work as a generalist across the full ads stack, collaborating with teams across Discovery, Seller Growth, Data Platform, Machine Learning Platform, and Payments. You’ll deliver high-scale, incremental value for sellers by shipping features end-to-end, moving quickly, and growing into new technical areas as the team scales.
Location: New York, San Francisco, Los Angeles, Seattle
Workplace: Hybrid
Employment Type: Full time
Job Function: Software Engineering
Seniority: Mid level

Key Responsibilities

  • •Own the ads system end to end, including backend foundations, retrieval/ranking, UI dashboards, logging, and measurement.
  • •Build high-scale product experiences by shipping features across the full stack as needed.
  • •Collaborate closely with other engineering teams (Discovery, Seller Growth, Data Platform, Machine Learning Platform, Payments).
  • •Take problems from inception to production with strong ownership instincts and fast delivery.
  • •Improve and extend the ads platform as the team scales, growing into new technical areas.

Pay and Benefits

Salary: USD 207,000 - 230,000 annually
Perks:Health InsuranceDentalVisionRemote WorkHome Office401kPensionParental LeavePaid Leave

Key Requirements

  • •5+ years of generalist software development with a Bachelor’s degree in Computer Science or related field, or equivalent experience.
  • •Full-stack proficiency across mobile (iOS/Android), web, and backend systems.
  • •Experience building web applications with React and using GraphQL for API development.
  • •Backend experience building high-scale, end-to-end product experiences; Python and/or Postgres experience is a plus.
  • •Comfort mentoring others and owning projects from inception through production while delivering features quickly.
Experience:Live commerceMarketplacesE-commerceAds
Education:Bachelor's
Skills:OwnershipProduct thinkingProblem-solvingAutonomyMentoring
Tech Stack:ReactGraphQLNext.jsIOSAndroidPythonPostgresMobileWebUI dashboards

Company Brief

Whatnot
Whatnot is a live-stream shopping marketplace connecting sellers and collectors for trading cards, toys, and collectibles. The platform hosts live auctions and interactive streams, enabling creators and small businesses to sell directly to engaged communities.
Industry: Online Marketplaces
Company Size: Large (251 to 1,000 employees)
Growth: Scaleup
Valuation: Unicorn (USD 1B+)
Funding: Series D
Headquarters: United States
Founded: 2019
WebsiteLinkedIn