Whatnot

iOS Engineer, Seller Growth Product

Whatnot

full-time

Posted on:

Location Type: Remote

Location: Remote • California, New York, Texas, Washington • 🇺🇸 United States

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Salary

💰 $190,000 - $215,000 per year

Job Level

Mid-LevelSenior

Tech Stack

iOSPythonSQLSwift

About the role

  • Developing high-quality iOS features in Swift and SwiftUI that power seller onboarding, education, and incentive experiences — with a strong attention to detail, performance, and user experience.
  • Collaborating cross-functionally with product, design, and data partners to define goals, manage scope, and align on priorities that balance speed, quality, and impact.
  • Leveraging data and experimentation to guide product decisions — designing and analyzing A/B tests, digging into results, and iterating to accelerate seller success.
  • Contributing across the stack when needed (our backend is primarily Python) and staying open to learning beyond iOS.
  • Upholding engineering excellence through code reviews, documentation, and thoughtful technical discussions.

Requirements

  • 5+ years of experience building and shipping iOS apps using Swift and SwiftUI
  • Care deeply about product experience, sweating the details that make interfaces feel effortless and polished.
  • Thrive in cross-functional environments, collaborating closely with product, design, and data partners to align on goals and deliver results.
  • Are comfortable using A/B testing and data tools (e.g., Snowflake, SQL) to understand user behavior and guide product decisions.
  • Communicate clearly, manage stakeholder expectations effectively, and take ownership from concept to launch.
  • Are passionate about mentorship, sharing knowledge, and helping raise the team’s technical bar.
  • Bonus points for familiarity with Datadog or similar observability tools for performance monitoring.
  • Experience building onboarding, education, or incentive-based products.
  • Curiosity or experience working beyond iOS, collaborating with backend teams or contributing to APIs.
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
  • Parental Leave
  • 16 weeks of paid parental leave + one month gradual return to work *company leave allowances run concurrently with country leave requirements which take precedence.

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard skills
iOS developmentSwiftSwiftUIPythonA/B testingSQLdata analysiscode reviewsdocumentationAPI development
Soft skills
attention to detailcollaborationcommunicationstakeholder managementownershipmentorshipcuriosityproblem-solvingcross-functional teamworktechnical discussions
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