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Whatnot

Software Engineer, Fraud

Whatnot, Los Angeles, California, United States, 90079

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Base pay range

$180,000.00/yr - $260,000.00/yr 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. Were re-defining e-commerce by blending community, shopping, and entertainment into a community just for you. As a remote co-located team, were inspired by innovation and anchored in our values. With hubs in the US, UK, Germany, Ireland, and Poland, were building the future of online marketplaces together. From fashion, beauty, and electronics to collectibles like trading cards, comic books, and even live plants, our live auctions have something for everyone. And were just getting started! As one of the fastest growing marketplaces, were looking for bold, forward-thinking problem solvers across all functional areas. Check out the latest Whatnot updates on our news and engineering blogs and join us as we enable anyone to turn their passion into a business, and bring people together through commerce. Role

The Trust and Risk, Fraud, and Integrity teams at Whatnot are responsible for building systems that help set clear expectations, encourage good behavior, and address issues fairly and efficiently. By combining proactive detection with transparent enforcement, we ensure Whatnot remains a safe and trustworthy place for both buyers and sellers. You will do

Design and develop systems to protect the platform: Build and iterate on production algorithms and infrastructures that mitigate systemic risks and safeguard buyers, sellers, and the broader Whatnot community. Balance risk and user experience: Proactively monitor the impact of protective systems on trusted users, ensuring interventions deliver more value than friction. Respond in real time to threats: Architect event-driven pipelines and detection frameworks that enable near real-time responses to high-risk user behavior. Contribute across the full development lifecycle: Engage in ideation, scoping, prototyping, load testing, deployment, and monitoring to deliver resilient and scalable solutions. Drive cross-team initiatives: Collaborate across multiple product surfaces and operational teams, surfacing insights to leadership and stakeholders through dashboards, notebooks, and clear written documentation. Continuously evolve defenses: Stay ahead of emerging abuse patterns, abuse vectors, and account integrity risks by iterating quickly and rigorously testing solutions. Requirements

4+ years of total software engineering experience; 4+ years of software engineering experience building for consumer-scale loads. Bachelors degree in Computer Science, Statistics, Applied Mathematics, Economics, a related technical field, or equivalent work experience. 1+ years of experience writing production code in Python. 1+ years of experience in Trust and Risk or Integrity or Fraud domains preferred. Business intuition & a data-driven mindset; explicit data science or machine-learning experience is a huge plus. Ability to work autonomously and lead initiatives across multiple product areas and communicate findings with leadership and product teams. Comfort with data warehouses and transformation tools such as Snowflake, dbt, Dagster. Professionalism around collaborating in a remote working environment and well tested reproducible work. Above average documentation and communication skills. Compensation

For Full-Time (Salary) US based applicants: $180,000/year to $260,000/year + benefits + equity. The salary range may be inclusive of several levels applicable to the position. Final salary will be based on factors such as level, relevant prior experience, skills, and expertise. 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 All Whatnauts are expected to develop a deep understanding of our product. We are passionate about building the best user experience, and all employees are expected to use Whatnot as both a buyer and a seller as part of their job (dogfooding budget). Parental Leave 16 weeks of paid parental leave + one month gradual return to work Equal Opportunity

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. Compensation Range: $180K - $260K Seniority level

Mid-Senior level Employment type

Full-time Job function

Engineering and Information Technology Industries

Technology, Information and Internet

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