Customer Success Engineer, Enterprise Engineering

Whatnot; Seattle (WA); Hybrid; USD 170,000 - 190,000; Full time

Benefits offered by this job

Flexible Time Off Policy

Health insurance options

Home office set-up allowance

Monthly wellness allowance

Retirement 401(k) offering

Parental leave (16 weeks paid)

Job summary

Whatnot is seeking a Customer Success Engineer to support enterprise sellers by implementing bespoke solutions on its APIs. This role involves direct collaboration with technical teams and requires strong problem-solving skills.

Ideal candidates have over 5 years of experience in startups and a Bachelor’s degree in Computer Science. Benefits include flexible time off, health insurance, and a supportive work-from-home policy.

Qualifications

• 5+ years of Customer Success Engineering experience in high-growth startups.
• Strong written and oral communication skills.
• Ability to work with customers directly and manage expectations.

Responsibilities

• Partner with enterprise sellers to develop custom integrations.
• Act as the bridge between customers and internal teams.
• Build tools to support integration and customer success.

Skills

CSE-related experience in high-growth startups

Building bespoke solutions

Communication skills

Product instincts

Experience with e-commerce SaaS products

Education

Bachelor’s Degree in Computer Science or related field

Tools

Shopify

Channel Advisor

Magento

Job description

Join the Future of Commerce with Whatnot

Whatnot is the largest livestream shopping platform in North America and Europe for buying, selling, and discovering a wide range of items such as trading cards, fashion, electronics, and live plants. Our sellers build real businesses across hundreds of categories. We are building live commerce at a scale that’s never been done in the West.

As a remote co‑located team, we are inspired by our values 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 are one of the fastest growing marketplaces and were named the #1 Best Startup Employer in America by Forbes.

Role

The Enterprising Engineering team, nested within our Seller Engineering org, supports the needs of our largest and most complex sellers. As sellers grow their businesses on Whatnot, their needs evolve, and this team builds the systems and tooling to support them at scale, including integrations with e‑commerce platforms, WMS, ERPs, and accounting software.

This Customer Success Engineer will operate at the intersection of engineering, product, and customer partnership—working directly with enterprise sellers and their technical teams to design, implement, and support custom integrations on top of Whatnot’s APIs and infrastructure. The role is highly technical and highly collaborative, combining hands‑on integration work with customer‑facing problem solving and product thinking. You’ll help enterprise partners navigate complex workflows across inventory, logistics, order management, and operational systems while partnering closely with internal engineering, product, and account teams.

Responsibilities

• Partner directly with enterprise sellers and their engineering teams to architect and implement bespoke integrations leveraging Whatnot’s APIs and platform capabilities.
• Act as the technical bridge between customers and internal teams—translating seller needs into scalable solutions while collaborating closely with engineering, product, and account management stakeholders.
• Build durable tooling, workflows, and support infrastructure that help scale enterprise onboarding, integration support, and long‑term customer success, including roughly 20–30% hands‑on coding focused on developing scalable integration solutions and internal operational tooling.
• Solve complex post‑sale technical challenges while helping define how Whatnot supports enterprise commerce moving forward.

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 Los Angeles, San Francisco, New York, or Seattle hub.

You

Curious about who thrives at Whatnot? We’ve found that embodying a low ego, growth mindset, and high‑impact drive goes a long way here. As our first Customer Success Engineer, you should have 5+ years of CSE‑related experience in high‑growth startups, and:

• Bachelor’s Degree in Computer Science or related field or equivalent work experience.
• Experience building bespoke solutions on top of an existing internal framework.
• Excellent product instincts; you first think about users rather than the best technical solution.
• Ability to work with customers directly, meeting expectations while ensuring internal company strategic standards and goals are met.
• Strong written and oral communication skills.
• Strong presentation skills and ability to articulate customer needs to engineering and product teams.
• Ability to take ownership of an ambiguous area and define and then drive impact.
• Flexibility to work across multiple workstreams, thriving in a fast‑paced environment.
• Ability to understand complex customer success workflows and envision and build tooling to better support our bespoke system.
• Experience with Shopify, Channel Advisor, Magento, and other e‑commerce SaaS products is a plus.

Benefits

• Flexible Time Off Policy and company‑wide holidays (including spring and winter break)
• Health insurance options including medical, dental, vision
• Work‑from‑home support:
  • Home office set‑up 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—401(k) offering for traditional and Roth accounts in the US (employer match up to 4 % of base salary) and pension plans internationally
• Monthly allowance to dog‑food the app (all Whatnot employees are expected to use Whatnot as both a buyer and a seller as part of their job; the dog‑fooding budget is fun and easy)
• Parental leave:
  • 16 weeks of paid parental leave plus one month gradual return to work (company leave allowances run concurrently with country leave requirements, which take precedence)

Equal Opportunity Employer

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 culture is improved when we encourage, support, and respect the different skills and experiences represented within our workforce.

Compensation range: $170 K – $190 K