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Software Engineer, CIAM

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Whatnot

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Location:
United States , San Francisco, CA ▼

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Category:
IT - Software Development

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Contract Type:
Not provided

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Salary:

180000.00 - 250000.00 USD / Year
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Job Description:

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. We’re re-defining e-commerce by blending community, shopping, and entertainment into a community just for you. As a remote co-located team, we’re inspired by innovation and anchored in our values. With hubs in the US, UK, Germany, Ireland, Poland, and Australia, we’re 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 we’re just getting started! As one of the fastest growing marketplaces, we’re 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.

Job Responsibility:

  • Work in cross-functional, multidisciplinary teams
  • Directly shape the security and integrity of user account systems
  • Minimize risk and potential abuse by ensuring robust authentication, authorization, and access controls across our environment
  • Empower other teams to move fast without compromising user trust by delivering secure-by-default infrastructure, scalable permissioning systems, and reliable storage for sensitive user data
  • Contribute to solving some of the most complex technical challenges and help define future engineering initiatives
  • Sample projects: Authentication
  • Authorization
  • Permissions
  • Access control systems across the environment
  • Building a secure storage for PII user data

Requirements:

  • 5+ years of infrastructure engineering experience
  • Experience building scalable systems that can handle millions of users
  • Experience with large distributed systems handling substantial traffic
  • Previous experience at a hyper-growth startup
  • Self-driven with result-oriented mindset
  • Excellent communication and writing skills
  • Exceptional coding skills and the ability to ship new products lightning-fast
  • Knowledge in areas like cryptography, networking, authentication, and authorization
  • Experience in implementing security measures such as encryption, access controls, data minimization, and regular audits to safeguard PII

Nice to have:

  • Nice to have a prior experience in a public cloud environment (AWS, GCP) using Kubernetes, Docker, and/or Terraform
  • Nice to have a startup experience at high-growth companies
What we offer:
  • 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
  • Parental Leave
  • 16 weeks of paid parental leave + one month gradual return to work

Additional Information:

Job Posted:
February 18, 2026

Employment Type:
Fulltime
Work Type:
Hybrid work
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