Mobile Engineer

Betterment•New York, NY

3d•$140,000 - $160,000•Hybrid

About The Position

Betterment is seeking a Mobile Engineer to build and maintain consumer-facing mobile experiences that support customers throughout their financial journeys. The role focuses on shaping first impressions for new customers and owning medium-sized features from design through implementation and release. Mobile Engineers work closely with full-stack engineers, UX designers, product managers, and project leads to deliver intuitive, high-quality applications that are performant, secure, and accessible. The position is based at Betterment’s NYC office. The company describes its NY-based positions as hybrid, with four days per week in the office and no required office days during summer and winter holidays. The NYC base salary range is $140,000–$160,000, and the position may also be eligible for a company incentive bonus. The engineer will contribute to a collaborative, iterative engineering environment, help improve the mobile platform and developer experience, support teammates through code review and mentoring, and use logs, traces, and metrics to diagnose and resolve issues. The role also calls for hands-on production use of AI coding tools with sound judgment about when and how to use them.

Requirements

Experience building applications with JavaScript/TypeScript and React Native.
Familiarity with the underlying iOS and Android platforms.
Solid understanding of mobile app architecture and performance, and ability to make reasonable design decisions for owned features.
Write simple, readable, well-tested code that requires minimal review feedback, with attention to accessibility and performance.
Track record of delivering features predictably by balancing scope, complexity, and time, and proactively communicating changes to scope or timelines.
Collaborative mindset and enthusiasm for working across engineering, design, and product teams.
Passion for software engineering, developer experience, and creating new solutions.
Appreciation of agility and pragmatism in software development.
Ability to thrive in a startup-like environment while balancing autonomy with collaboration.
Hands-on experience using AI coding tools in production work, with judgment to use and verify them appropriately.

Nice To Haves

Experience with Flutter.
Additional experience with GraphQL.

Responsibilities

Own medium-sized features and project milestones end to end, from design through release, in partnership with a project lead.
Collaborate with Product and Design teams to develop customer experiences for saving and investing.
Work with Full Stack Engineers to ensure features and the application scale with the business while remaining performant and secure.
Mentor less experienced teammates through code review and by helping them get unblocked, while learning from senior engineers.
Write clean, readable code and maintain it through rigorous testing and pragmatic programming.
Triage and resolve local and production issues using logs, traces, and metrics.
Write concise design documents that build consensus within the team.
Use AI coding tools in production work, applying judgment about when to rely on them, verify their output, or write code directly.
Collaborate in small groups to improve Betterment’s application and contribute to open communication and initiative within the engineering environment.
Contribute to and advocate for improvements to the team’s developer experience and mobile platform.