> Markdown version of [/jobs/ext/3310276-backend-engineer](https://www.wearedevelopers.com/jobs/ext/3310276-backend-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Backend Engineer - **Company:** Whatnot Inc. - **Location:** United States (Remote available) - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Microsoft Excel, Artificial Intelligence, Python (Programming Language), PostgreSQL, Backend, Information Technology, Elixir - **Published:** September 4, 2026 - **Apply:** https://startup.jobs/senior-software-engineer-cx-whatnot-com-7900461 ## About the Role As our next Backend Engineer, you should have 5+ years of full-time software engineering experience in high growth startups, plus: * Bachelor's degree in Computer Science, a related field, or equivalent work experience. * Backend Expertise: Proven track record of building end-to-end product experiences and scaling high-scale backend systems. Experience with Python, Elixir, and/or Postgres is a plus. Experience with Python, Elixir, and/or Postgres is a plus. * Ownership Mindset: Own projects holistically from inception to production and beyond. You are known for shipping high-quality products and platform level initiatives fast. * Product Instinct: Excel at translating user needs to effective technical solutions. * Problem Solving: Thrive in ambiguity and tackle challenging problems with creativity and autonomy. * Team Leadership: Proactively improve the team environment and foster inclusive, supportive team culture. ## Description We're looking for a Senior Backend Engineer to join the Customer Experience team and help us build a world-class Customer Support platform. With Whatnot's rapid growth comes a high volume of complex support needs-spanning technical, purchasing, and logistics issues for both buyers and sellers. Our team is responsible for resolving them quickly, reliably, and with high customer satisfaction. As a member of the team, you'll build new user-facing experiences, scale internal infrastructure, and design intelligent AI-powered automations to help us solve thousands of customer issues per hour. You'll lead solutions end to end. You'll translate ambiguous business problems into clear technical solutions and drive delivery and experimentation. Your role will involve creative problem-solving to balance development speed, product impact, and technical excellence. Team members in this role are required to be within commuting distance of our San Francisco, Seattle, Los Angeles, or New York hubs.