Lead / Senior React Native Engineer

Pelago is the world’s leading virtual clinic for Substance Use Management. Our program provides guidance, support and treatment for members seeking to overcome their tobacco, alcohol and opioid use. From unhealthy habits to active substance use disorders, Pelago delivers a personalized solution based on individual health, habits, genetics, and goals, providing care for members wherever they might be on the substance use spectrum.   Pelago's suite of virtual services ranges from education, to cognitive behavioral therapy (CBT) to comprehensive medication-assisted treatment (MAT). Pelago enables employers and health plans to deliver accessible, affordable, and effective treatment for substance misuse.   Pelago has scaled to helping hundreds of employers and health plans and has already helped more than 750,000 members manage their substance use better. We have recently closed our Series C and raised over $151m from leading global investors. If you are passionate about making an impact on the health of others, join us and make it happen!

Overview of the Role: 

Help incubate, launch, and scale new AI-native products at Pelago

Join Pelago’s AI Squad as an early Frontend Engineer and help define the next generation of behavioral health products. In this role, you’ll ship end-to-end features across React Native and React/TypeScript, transforming prototypes into production-ready experiences. Your work will move fast—from hypothesis to research preview to live product—and will be grounded in clinical safety, accessibility, and measurable outcomes. You’ll bring engineering craft and a sharp UX eye within a team that values thoughtful design, clean architecture, and meaningful user impact, leveraging modern AI-enhanced development tools to move faster and build better. While most of our surfaces are React Native, some use-cases will require platform-specific code. You should be comfortable writing Swift and Kotlin and exposing that functionality to RN.

This is a hybrid role with a high-collaboration rhythm (4 days/week in our NYC office).

In this role you will…

• Build, ship, and maintain cross-platform applications in React Native (mobile) and React/TypeScript (web) from prototype to production
• Turn AI research into product: instrument experiments, validate hypotheses, and iterate quickly on research previews on the path to live product.
• Partner cross-functionally (Design, Product, Backend, Clinical) to deliver accessible, reliable interfaces that handle real-time data.
• Integrate & evolve APIs (REST/GraphQL), help shape contracts, and ensure graceful states (loading, error, empty) and resilient data flows.
• Use AI to raise velocity & quality (Copilot, Cursor) alongside strong tests, performance checks, and WCAG-minded reviews.
• Strengthen foundations: evolve the design system and improve CI, code review, and releases to increase confidence and speed.

The background we are looking for... 

• 5+ years in React Native, 7+ years building production software
• Ability to lead React Native work from prototype to GA, setting approach, coordinating APIs, and driving releases and post-launch improvements independently.
• Strong grasp of component architecture, design patterns, and state management (e.g., React Query, Zustand, Redux).
• Comfortable integrating backends (REST/GraphQL), working with real-time/streaming data, and shaping API contracts.
• Experience building React Native bridges and writing native modules in Swift (iOS) and Kotlin (Android) when platform APIs or performance require it.
• Write clean, scalable, maintainable code with unit/integration tests and clear documentation.
• Sharp UX sensibility and attention to detail; commitment to accessibility (WCAG).
• Fluency with AI coding assistants (e.g., Copilot, Cursor) and the judgment to verify outputs.

What you’ll love about us… 

We have a whole host of perks for our people! From life essentials to nice-to-haves, there are more than a few good reasons to love working with us. We strive to ensure Pelago employees have equitable access to healthcare, wellbeing, time away, and then some.

• Generous and meaningful equity package
• Full Medical, Dental, & Vision coverage 
• 401k Plan 
• Unlimited PTO Policy, 10 paid holidays, & quarterly company wide “Me Time” Days
• Paid parental leave
• Annual Learning and Development stipend to support continued learning and career development
• Wellness Reimbursement Program 
• Access to Reproductive & Family Plannin