Software Engineer, Ads - Poland



Software Engineering
Posted on Thursday, March 28, 2024

🚀 Whatnot

Whatnot is a livestream shopping platform and marketplace backed by Andreessen Horowitz, Y Combinator, and CapitalG. We’re building the future of ecommerce, bringing together community, shopping and entertainment. We are committed to our values, and as a remote-first team, we operate out of hubs within the US, Canada, UK, Ireland, and Germany today.

We’re innovating in the fast-paced world of live auctions in categories including sports, fashion, video games, and streetwear. The platform couples rigorous seller vetting with a focus on community to create a welcoming space for buyers and sellers to share their passions with others.

And, we’re growing. Whatnot has been the fastest growing marketplace in the US over the past two years and we’re hiring forward-thinking problem solvers across all functional areas.

💻 Role

Ads is a growing engineering team at Whatnot that is dedicated to building systems & features to help Sellers grow their business. As a software engineer on the Ads team, the most important qualities you'll need are making sound product decisions, navigating new domains seamlessly, taking extreme ownership, and shipping high-quality products fast. We always prioritize the highest impact features and ship them quickly. The software team has a lot of individual responsibility and many more freedoms, so we need to hire people we can trust. Your ability to put customers first, make good trade-offs and deliver impact is essential to us.

In this role, you will:

  • Build ads products by working across the full ads stack including bidding & targeting, ranking/auction, serving, campaign management, and seller tooling
  • Build highly scalable Ads system that handles all aspects of running an online advertising system and helps sellers differentiate themselves on Whatnot
  • Understand our buyer and seller experiences and become an expert in helping them effectively scale their business through ads & monetization products

👋 You

Curious about who thrives at Whatnot? We’ve found that low ego, a growth mindset, and leaning into action and high impact goes a long way here.

As our next Senior Software Engineer you should have 5+ years of software engineering experience, ideally with some industry experience in one of the following areas: ads infra, ads delivery or systems, news/home feed ranking systems infra, recommendation/ranking systems, search engines and/or search infra. You also:

  • Are capable of building scalable systems (we primarily use Python, Elixir, JavaScript)
  • Have product instincts. You first think about users rather than the best technical solution
  • Have built systems that scale at a high growth company before, and can do it again with minimal guidance
  • Can ship products and features lightning-fast without sacrificing quality
  • Are an excellent problem solver and don’t need to be told exactly what to do
  • Are comfortable working across the stack (backend and frontend)
  • Have the ability to pick up on new technologies very quickly
  • Have a proven track record of delivering features


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.