Senior Fullstack Engineer, Customer Experience

Whatnot; New York, Los Angeles, Seattle, San Francisco (NY, CA, WA, CA); Remote; USD 185,000 - 205,000; Full time

Job summary

A leading company in livestream shopping seeks a Senior Fullstack Engineer to enhance their Customer Support platform. This role involves developing user experiences and automating solutions to meet complex support needs, ensuring high customer satisfaction and operational excellence.

Benefits

Health Insurance options

Home office setup allowance

Monthly allowance for cellphone and internet

401k with employer match

16 weeks of paid parental leave

Qualifications

• 5+ years of software engineering experience in high-growth startups.
• Proven experience building high-scale product experiences as a full-stack engineer.

Responsibilities

• Develop new user-facing experiences and scale internal infrastructure.
• Lead solutions end-to-end, translating ambiguous business problems into clear technical solutions.

Skills

Problem Solving

Team Leadership

Ownership Mindset

Education

Bachelor’s degree in Computer Science

Tools

Python

Next.js

Postgres

Job description

Senior Fullstack Engineer, Customer Experience

Join the Future of Commerce with Whatnot!

Whatnot is the largest livestream shopping platform in North America and Europe for buying, selling, and discovering the things you love. We’re redefining 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, Ireland, Poland, and Germany, 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.

Role Overview

We’re seeking a Senior Fullstack Engineer to join the Customer Experience team and help us build a world-class Customer Support platform. With Whatnot’s rapid growth, we face a high volume of complex support needs—covering technical, purchasing, and logistics issues for both buyers and sellers. Our team is responsible for resolving these quickly, reliably, and with high customer satisfaction.

As a team member, you’ll develop new user-facing experiences, scale internal infrastructure, and design intelligent automation to resolve thousands of customer issues per hour.

You’ll lead solutions end-to-end, translating ambiguous business problems into clear technical solutions, and driving delivery and experimentation. Your role involves creative problem-solving to balance development speed, product impact, and technical excellence.

Team members in this role should be within commuting distance of our hubs in San Francisco, Seattle, Los Angeles, or New York.

Qualifications

• 5+ years of full-time software engineering experience in high-growth startups.
• Bachelor’s degree in Computer Science, a related field, or equivalent work experience.
• Web & Backend Expertise: Proven experience building end-to-end high-scale product experiences as a full-stack engineer. Experience with Python on the backend, Next.js on web, and/or Postgres databases is a plus.
• Ownership Mindset: Ability to own projects holistically from inception to production and beyond, shipping high-quality products rapidly.
• Product Instinct: Skilled at translating user needs into effective technical solutions.
• Problem Solving: Thrive in ambiguity and tackle challenging problems with creativity and autonomy.
• Team Leadership: Proactively improve team environment and foster an inclusive, supportive culture.

Compensation & Benefits

For US-based applicants: $185,000/year to $205,000/year + benefits + equity. Final salary depends on level, experience, skills, and expertise. This range includes base salary only, excluding benefits and equity.

Benefits

• Health Insurance options including Medical, Dental, Vision
• Work From Home Support
  • Home office setup allowance
  • Monthly allowance for cellphone and internet
• Retirement: 401k (US) with employer match up to 4%, pension plans internationally
• Parental Leave
  • 16 weeks of paid parental leave + one month gradual return to work (company leave allowances run concurrently with country-specific leave requirements)

Equal Opportunity Employer

Whatnot is proud to be an Equal Opportunity Employer. We value diversity and do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, parental status, disability, or any other protected status. We believe that our work is better and our culture is stronger when we support and respect the diverse skills and experiences within our workforce.

Application Process

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