Android Engineer, Seller Engineering

Role

We’re hiring an Android Engineer to join our Seller Engineering org within our Merchant Systems team. The Inventory team builds the internal and product systems that let sellers create, organize, represent, and manage inventory at scale on Whatnot. You’ll design and build mobile experiences and systems that sit at the heart of the seller and buyer experience—combining growth, trust, and scalability.

Responsibilities

• Develop high-quality Android features using Kotlin and Jetpack Compose.
• Collaborate cross-functionally with product, design, and backend teams to define goals, scope, and technical trade-offs.
• Contribute to the evolution of shared mobile infrastructure and best practices across Whatnot’s engineering teams.
• Uphold engineering excellence through code reviews, documentation, and thoughtful discussions that raise the bar.

Requirements

• Bachelor’s degree in Computer Science, a related field, or equivalent work experience.
• Android expertise in creating fluid, responsive user interfaces.
• Strong knowledge of Kotlin and Jetpack Compose.
• Adept at reactive programming with Kotlin Coroutines and Flows.
• Fluent in MVI or MVVM development.
• Care deeply about product quality and performance, creating polished experiences that balance usability and trust.
• Thrive in cross-functional environments, partnering effectively with product, design, and backend peers.
• Comfortable using data and experimentation (SQL, Snowflake, A/B testing) to guide decisions.
• Communicate clearly and drive alignment across teams in ambiguous, fast-changing environments.
• Have a growth mindset, taking ownership from concept to launch while mentoring others along the way.

Qualifications

• 5+ years of experience building and shipping high-quality Android applications.

Skills

• Experience with Kotlin and Jetpack Compose.
• Reactive programming with Kotlin Coroutines and Flows.
• MVI or MVVM development.
• Product quality and performance.
• Collaboration and cross-functional teamwork.
• Data and experimentation.
• Growth mindset and mentorship.

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 to dogfood the app.
• All Whatnauts are expected to develop a deep understanding of our product.
• Paid parental leave (16 weeks of paid parental leave + one month gradual return to work).
• Compensation Range: $195K - $290K.