HOME Software Engineering & Dev Software Engineer, Ads
  • Whatnot
  • New York, NY
  • Full-Time
  • 4 days ago
Whatnot VERIFIED EMPLOYER

Software Engineer, Ads.

Software Engineering & Dev Full-Time

Software Engineer, Ads: our view in 3 lines...

  • The Role:This role is for a software engineer on an ads team building backend systems for a live shopping marketplace.
  • The Person:The person will build ads products across the full ads stack, including bidding and targeting, ranking and auction, serving, campaign management, and seller tooling.
  • Requirements:The ideal candidate has a bachelor’s degree in Computer Science or a related field, 4+ years of software engineering experience, and strong experience designing, building, and operating scalable, maintainable backend services.

About the role

Join the Future of Commerce with Whatnot!

Whatnot is the largest live shopping platform in North America and Europe to buy, sell, and discover the things you love. Whether it's trading cards, fashion, electronics, or live plants, our sellers are building real businesses across hundreds of categories. We're building live commerce at a scale that's never been done in the West, and there's no playbook to copy. The people here are shaping how an entirely new industry develops.

As a remote co-located team, we're inspired by our <u>values</u> and anchored in hubs across the US, UK, Ireland, Poland, Germany, and Australia. We move fast, stay close to our users, and focus on the work that drives the most impact.

We're one of the <u>fastest growing marketplaces</u> and were recently named the <u>#1 Best Startup Employer in America</u> by Forbes. Check out the latest Whatnot updates on our <u>news</u> and <u>engineering blogs</u> and join us as we enable anyone to turn their passion into a business and bring people together through commerce.

Role

Ads is a growing engineering team at Whatnot 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.

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.

  • 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 systems that handle all aspects of running an online advertising system and help sellers differentiate themselves on Whatnot.

  • Dig deep into data, logging, and system behavior to reason about performance, correctness, and impact — not just ship features, but understand why they work.

  • Understand our buyer and seller experiences and become an expert in helping them effectively scale their business through ads products.

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, SF, LA, or Seattle hubs

You

People who do well at Whatnot tend to be comfortable figuring things out as they go, biased toward action, and genuinely curious about what they're building. They care more about outcomes than credit and stay close to the product and the people using it.

As our next Backend Engineer you should have:

  • Bachelor’s degree in Computer Science, a related field, or equivalent practical experience.

  • 4+ years of professional software engineering experience building and shipping backend systems in production environments.

  • Strong experience designing, building, and operating scalable, maintainable backend services.

  • Strong technical judgment and the ability to make thoughtful tradeoffs between speed, quality, reliability, and long-term maintainability.

  • Experience working in fast-moving, cross-functional product or platform environments.

  • Comfort owning ambiguous problem spaces and turning them into clear technical plans and shipped outcomes.

  • Strong communication and collaboration skills, especially when partnering across engineering, product, design, and data.

  • A product-minded approach to engineering — you care not just about whether a system works, but whether it creates value for users and partner teams.

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

  • Care benefits

  • 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

Please note: Whatnot will only contact you through official @whatnot.com email addresses. If you see an email impersonating a Whatnot recruiter, please disregard and report it as spam.

EOE

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.

$170K – $230K • Offers Equity

The salary or hourly rate range may be inclusive of several levels that would be applicable to the position. Final salary or hourly rate will be based on a number of factors including, level, relevant prior experience, skills, and expertise. This range is only inclusive of base salary or hourly rate, not benefits or equity.

Whatnot is a community marketplace where you can safely buy, sell, go live and build a community with other like-minded people.

We got our start offering a buying and selling experience to collectors of Funko Pops and Pokemon cards. We became the leading marketplace for those communities and have found success launching into categories like sports cards, NFTs, and vintage fashion.

In July of 2022, we raised $260 million in a Series D funding round bringing our valuation to $3.7 billion, a 2.5x increase since our $1.5 billion valuation in September of 2021.

Our mission is to enable anyone to turn their passion into a business and bring people together through commerce. We enable anyone to connect, transact and build a business in one place -- Whatnot is bringing the in-person retail experience online.

Published September 16, 2026
Location New York, NY
Job Type Full-Time