Sr. Mobile Engineer - Upcoming Apps Portfolio (Android & iOS) (Remote)

Current Mobile; United States; Remote; USD 120,000 - 190,000; Full time

Job summary

Mode.Inc is seeking a Sr. Mobile Engineer to lead the design, development, and optimization of user-facing features across web and mobile.

You will ship across Android and iOS, collaborate with product and design, and leverage AI coding agents to plan, implement, test, and review work while maintaining high-quality code and automated tests.

Qualifications

• 5+ years of professional mobile engineering experience delivering native apps on Android and iOS.
• Hands-on production experience with Kotlin/Java for Android and Swift for iOS.
• Experience taking ownership of production codebases; strong debugging skills.
• Agentic AI proficiency and ability to verify AI outputs before production.

Responsibilities

• Lead design, development, and optimization of user-facing features across web and mobile.
• Collaborate with product and design to ship across Android and iOS using modern toolchains.
• Leverage AI coding agents to plan, implement, test, and review work with high judgment.
• Ensure code quality with unit/integration tests and continuous delivery to app stores.
• Adapt across apps, codebases, and pods as priorities shift.

Skills

Android development

iOS development

Kotlin

Swift

Testing

AI agentic tools

Debugging

Agile practices

Tools

Jetpack Compose

SwiftUI

XCTest

XCUITest

Espresso

UI Automator

Dagger/Hilt

Retrofit

Room

Job description

Who We Are (Mode.Inc)

Mode.Inc is the parent company of a portfolio of technology businesses, including Mode Mobile, the creator of EarnOS, a transformational software platform that turns ordinary smartphones into \"EarnPhones\". This innovation empowers users worldwide to monetize everyday mobile activities such as streaming, gaming, and shopping. We enable users to profit from their data and attention, rather than letting only tech giants benefit. What sets us apart is our inclusive approach, converting users into earners, facilitating over $150M in earnings and savings, and going a step further by turning earners into owners by awarding stock ownership in Mode.Inc based on their usage. We have attracted over 40 million users across 170 countries.

Mode Mobile, Inc. Ranked Number 1 Fastest Growing Company in North America on the 2023 Deloitte Technology Fast 500.

For additional insights, check out information about our reward-based super app, Mode Earn App, which also powers the reward engine for our proprietary smartphone, Mode Earn Phone.

Our Team and Culture Drive Our Success

Our team is the heart of our culture. We value innovation, collaboration, and curiosity, with a passion for getting things done. We strive to hire and cultivate the best team members and foster a culture of open communication and transparency. We are driven and hard-working but also committed to having fun along the way. We allow OKRs to guide us, assume positive intent, sometimes agree to disagree and commit, honor our commitments, seek to accomplish more with less, and encourage everyone to speak up as our team owns our company’s success.

You can read more about our team and how we work here.

The Role

We’re looking for an exceptional Sr. Mobile Engineer to lead the design, development, and optimization of user-facing features across our web and mobile experiences. This is a hands‑on role for someone who is comfortable entering unfamiliar codebases, quickly understanding complex systems, identifying risks, and turning them into reliable, maintainable production systems.

This is a hands‑on, high-impact role ideal for someone who loves building beautiful interfaces, optimizing performance, and shipping features that users can feel instantly. You’ll collaborate closely with backend, product, and design to bring new capabilities to market through rapid iterations and continuous deployment. We are an AI-native company, and you’ll be expected to use modern AI coding and agentic tools as a force multiplier in your everyday engineering work.

Who You Are and What You’ll Do

• You are excited to work at the forefront of solving one of the biggest challenges. You care about your users.
• You’re an expert in smartphone technology and love mobile application software, equally comfortable shipping on Android and iOS.
• You embrace agentic AI as a force multiplier: you use AI coding agents to plan, implement, test, and review work, and you know when to trust them and when to verify.
• You value working closely with Product Management, learning directly from users about what matters to them, and developing solutions that they love.
• You care deeply about the impact of your work, and measure success by the value added to users’ lives.
• You partner with cross-functional team members to gain additional insight into users, seek to better understand their interests and behavior as critical drivers to success.
• You’re excited to write high-quality, maintainable, and well-tested code. You are eager to find minimal ways to test hypotheses and validate feasibility.
• You’re a strong advocate for unit/integration testing and passionate about automated testing and continuously shipping to production on both app stores.
• You are adaptable and comfortable moving between apps, codebases, and pods as priorities shift.

What You Bring to the Team

Must Have:

• 5+ years of professional mobile engineering experience in an agile environment delivering native applications to end-users on both Android and iOS, with hands-on production experience using:
• Android: Kotlin (and Java), Jetpack Compose, Coroutines, Flow, Dagger/Hilt, Retrofit, Room
• iOS: Swift, SwiftUI and UIKit, Swift Concurrency (async/await), Combine, Core Data or equivalent
• GitHub for version control and pull-request based workflows
• SOLID, Clean Coding, Testing, experience with automation and instrumentation (Espresso/UI Automator, XCTest/XCUITest)
• Publishing and maintaining apps on Google Play and the Apple App Store, including release management and store compliance
• Experience taking ownership of an existing production system or codebase
• Ability to quickly understand unfamiliar architecture, code, dependencies, and operational workflows
• Strong debugging and problem-solving skills in systems you did not originally design
• Comfortable working with incomplete documentation and ambiguity
• Agentic AI proficiency: demonstrated day-to-day use of AI agents (e.g., Claude Code, Cursor, GitHub Copilot agents) to write and review infrastructure code, automate runbooks, and investigate incidents, with strong judgment on verifying AI-generated output before it touches production.
• You have exceptional organizational and analytical skills leading to confident independent delivery, but know when and how to include others.
• You have experience building large-scale systems with some technical leadership skills.
• Passionate