Mobile Software Engineer

On Me; San Francisco (CA); Hybrid; USD 120,000 - 170,000; Full time

Benefits offered by this job

Meaningful equity

Hybrid SF/NYC office

Unlimited PTO

Medical, dental, and vision insurance

401k

Job summary

On Me is seeking a mobile software engineer to own the native iOS and Android apps end‑to‑end, delivering polished, high‑performing experiences.

You will design, implement, and ship features in Swift and Kotlin, ensure strong UX, integrate with backend APIs, optimize across devices, and drive performance in a fast‑growing startup. Join a tight‑knit team building consumer gifting in a scalable way. Hybrid SF/NYC office, meaningful equity, unlimited PTO, and full medical/dental/vision coverage.

Qualifications

• 5+ years of experience building and shipping native mobile apps.
• Proficiency in Swift (iOS) and/or Kotlin (Android), with strong experience in at least one and working knowledge of the other.
• Strong product and UX mindset; end‑to‑end flows are important.
• Experience with mobile CI/CD, automated testing, and release management.
• Ability to own projects from concept to launch.

Responsibilities

• Design, implement, and ship native iOS and/or Android features.
• Build high-quality, fluid mobile UIs with attention to polish and performance.
• Architect and evolve mobile codebases for maintainability and performance.
• Integrate with backend APIs and collaborate on API design.
• Drive mobile architectural decisions to support scaling to hundreds of thousands of users.

Skills

Swift

Kotlin

Mobile UI/UX

API integration

CI/CD

Testing

Tools

Xcode

Android Studio

TestFlight

Job description

About On Me

Humans have given each other gifts since the dawn of time. For gratitude, for friendship, and for love. In today’s society, gifting has become harder and much more wasteful, as it’s become nearly impossible to know exactly what someone wants, when you just want to show that you care.

About On Me

Humans have given each other gifts since the dawn of time. For gratitude, for friendship, and for love. In today’s society, gifting has become harder and much more wasteful, as it’s become nearly impossible to know exactly what someone wants, when you just want to show that you care. On Me is revolutionizing gifting by rebuilding it for the mobile and Instagram era. Traditional gift cards are impersonal and rigid, usually sold by an old and wealthy megacorp. We make it easy to send a personalized, media-rich gift that’s spendable across brands, fits someone’s hobbies, and drops straight into their mobile wallet for tap‑to‑pay. Check out our live experience at onme.com. We’re a small startup from Google, Apple, and Stripe moving fast on a massive category and have raised $8M from top‑tier investors like NFX, Lerer Hippeau, Focal VC, and Mastercard. Since launching in November 2024, On Me has been featured in Tech Crunch, Fortune, and The Wall Street Journal. In 2025, we sustained over 40% growth month over month throughout the year, and the trend shows no sign of stopping. In 2026, we're doubling down on making every gift feel magical end‑to‑end and building an amazing consumer product. You'll help us build world‑class iOS and Android apps that people love. If you want meaningful ownership, clear consumer product impact, and the chance to set engineering standards early, this is it.

Who you are

You're perfect for this role if you're a mobile engineering expert who wants to own the native app experience end to end. You love crafting polished, performant iOS and/or Android apps that delight real users. You care deeply about the quality and craft of what you build, and why you build it.

What you’ll do

As a mobile software engineer, you'll be the fourth engineer at a tiny startup, working closely with the whole team to design and build the native mobile experiences that power our gifting platform. You'll own our iOS and/or Android apps from architecture to pixel‑perfect UI, building polished, performant experiences backed by clean API integrations. Your work will include thinking through user journeys, edge cases, loading and error states, and optimizing for performance across devices. You'll have end-to-end ownership of critical mobile surfaces, driving both product and engineering decisions that shape the future of digital gifting.

Key Responsibilities

• Design, implement, and ship native iOS and/or Android features using Swift and Kotlin.
• Build high-quality, fluid mobile UIs with attention to polish, animation, responsiveness, loading, and error states.
• Architect and evolve our mobile codebases for maintainability, testability, and performance.
• Integrate with backend APIs and collaborate on API design to support mobile use cases.
• Collaborate with product, design, and the rest of the team to translate fuzzy goals into concrete flows and shipped features.
• Drive mobile architectural decisions to support scaling to hundreds of thousands of users.
• Set up and evolve crash reporting, performance monitoring, and release tooling for our mobile apps.

Requirements

• 5+ years of experience building and shipping native mobile apps.
• Proficiency in Swift (iOS) and/or Kotlin (Android), with strong experience in at least one and working knowledge of the other.
• Strong product and UX mindset: you think from the user's point of view and care about end‑to‑end flows, not just screens.
• Deep understanding of mobile platform conventions, lifecycle management, and performance optimization.
• Experience with mobile CI/CD, automated testing, and release management (TestFlight, Play Console).
• Solid understanding of API integration, data modeling, and how systems fail in practice.
• Ability to take ownership of projects from vague problem → design → implementation → launch and iteration.
• Strong communication and collaboration skills in a fast‑paced startup environment.

Bonus points

• Some experience with modern web stacks (React, Next.js, TypeScript) — enough to contribute to web features when needed.
• Experience with frontend development for consumer products.
• Experience with Google Cloud Platform (Cloud Run, Pub/Sub, Firestore, BigQuery).
• Experience working with payments, financial transactions, or other high‑value data systems.
• Experience with mobile wallet integrations (Apple Wallet, Google Wallet).

What we offer

• A competitive salary and meaningful early employee equity.
• A dynamic, collaborative, balanced, and inclusive work culture.
• The opportunity to deeply shape the company’s tech stack and engineering culture.
• Hybrid office in SF with a fully stocked gym, or hybrid office in NYC.
• Unlimited paid time off.
• Medical, dental, and vision insurance.
• 401k

Who You’ll Work With

• Darragh Meaney, CEO — Formerly at Google Ads and YouTube
• Sitar Harel, CTO — Formerly at Google Maps and Google Photos
• Daniel Li, Founding Engineer — ex-Apple, WWDC session speaker and Cornell AppDev alum
• Neil Shankar, Founding Designer — previously Senior Designer at Google and Block (formerly Square)

Compensation Range: $120K - $170K