App Infrastructure (React Native) Engineer

Partiful; New York (NY); On-site; USD 145,000 - 205,000; Full time

Benefits offered by this job

401(k) matching

Health, dental, and vision insurance

Free OneMedical membership

Commuter benefits

ClassPass and CitiBike memberships

Paid time off

14 paid holidays

Parental leave

Party stipend to plan events

Semiannual team off-sites

Exclusive parties

Job summary

Partiful seeks an experienced App Infrastructure Engineer to own and scale the systems powering our mobile development. You will build the foundation that helps our team ship faster while ensuring top-tier app performance and reliability, across iOS and Android.

You’ll work with Expo, React Native, TS, and related tooling, improving developer velocity with CI/CD, observability, and robust infrastructure. This role offers a fast-paced environment and opportunities to influence how users

Qualifications

• 3+ years of experience building mobile apps with React Native.
• Experience with Expo and managing mobile build/deploy infrastructure.
• Strong knowledge of New Architecture, React Compiler, and performance optimization.
• Proven track record of improving developer experience with CI/CD automation and observability (Sentry).
• Builder mindset focused on automation, optimization, and enabling teams through great tooling.
• Deep sense of ownership and ability to deliver ambitious outcomes on fast timelines.
• Collaborative, pragmatic approach prioritizing outcomes over ego.

Responsibilities

• Maintain and evolve Expo infrastructure for scalable mobile development.
• Use React Native's New Architecture and latest tooling to identify and remove performance bottlenecks.
• Build iOS-specific features like App Clips, Live Activities, and Widgets.
• Collaborate with Expo & Software Mansion, testing new releases and providing feedback.
• Create tooling and infrastructure that improves developer velocity and code quality.
• Establish monitoring and observability systems to track app performance and release health.
• Collaborate with product and other infra engineers to align infrastructure with feature development.
• Own and improve the weekly app release process from build to store deployment.
• Join a fast-moving team that moves fast and loves what we build, plus attend parties.

Skills

React Native

Expo

New Architecture

React Compiler

Performance optimization

CI/CD automation

Observability (Sentry)

Infrastructure tooling

Ownership mindset

Collaboration

Tools

Expo

Job description

Partiful's mission is to cultivate friendships through social events.

We believe events are the most effective way to meet new people and make friends. Our product helps you throw incredible events, starting with memorable party pages that make it easy to plan & communicate with guests — download the app to see how it works!

We're building new ways to streamline planning, connect meaningfully in the real world, and make connections between friends-of-friends. Our ultimate vision is to power everything you do in-person with your friends, eliminating the friction of bringing your most memorable experiences to life. You can read more about our mission in The Washington Post, The New York Times, The Wall Street Journal, The Atlantic, Wirecutter, and USA Today. Partiful was named Google’s Best App of 2024, a Finalist for Apple’s App Store Awards, and Apple’s App of the Day (awarded 4x). In 2025, we were named one of TIME's 100 Most Influential Companies, one of Fast Company's Most Innovative Companies, and named to Inc. Magazine's Best in Business List.

Our company is backed by top-tier investors including Andreessen Horowitz and Google Ventures, and advised by the founders of some of the most successful consumer social products ever made.

The Role

We’re looking for an experienced App Infrastructure Engineer to own and scale the systems that power mobile development at Partiful. You'll build the foundation that enables our team to ship faster while maintaining world-class app performance and reliability. We believe all Partiful engineers should be able to contribute to our mobile apps, and you’ll make that possible by building infrastructure that scales with the company.

As our App Infrastructure Engineer, you'll be responsible for maintaining and evolving our Expo-based development environment, implementing cutting-edge React Native capabilities, and expanding Partiful's presence across iOS and Android surfaces. You'll work at the intersection of developer experience and user experience, ensuring our engineering team has the tools they need while our users get the responsive, native-feeling app they expect. Our mobile stack is React Native, Typescript, Expo, Expo Router (among many other Expo libraries), Reanimated, TanStack Query, Sentry.

What you’ll do:

• Maintain and evolve our Expo infrastructure, ensuring smooth upgrades and optimal configuration as we scale

• Leverage React Native's New Architecture and latest tooling (React Profiler, etc.) to identify and eliminate performance bottlenecks

• Build and maintain iOS-specific features like App Clips, Live Activities, and Widgets to create seamless user experiences

• Work with our close partners at Expo & Software Mansion, by testing out new feature releases and providing feedback

• Create tooling and infrastructure that improves developer velocity and code quality across the mobile team

• Establish monitoring and observability systems to track app performance, release health, and user experience metrics

• Collaborate with both product engineers and other infrastructure engineers to ensure infrastructure decisions enable feature development rather than constrain it

• Own and continuously improve our weekly app release process, from build to store deployment

• Join an ambitious team that moves fast, works hard, and loves what we build — plus, attend really cool parties!

What you’ll bring:

• 3+ years of experience building mobile applications with React Native

• Experience with Expo and managing mobile build/deployment infrastructure

• Strong understanding of New Architecture, React Compiler, and modern performance optimization techniques

• Track record of improving developer experience using CI/CD automation, observability systems (such as Sentry), and infrastructure tooling

• A builder’s mindset — you enjoy automating, optimizing, and empowering teams through great tooling

• Deep sense of ownership and dedication to delivering ambitious outcomes on fast timelines

• A collaborative, pragmatic approach — you care about outcomes more than ego

What we offer:

• 401(k) with up to 6% matching

• Comprehensive health, dental, and vision insurance for you and all your dependents (FSAs and HSA plans available)

• Free OneMedical membership, telehealth, and virtual mental health services

• Commuter benefits & contributions towards ClassPass and Citibike memberships

• Take what you need paid time off

• 14 paid holidays throughout the calendar year

• Parental leave

• Quarterly stipend to plan your own party and dogfood the product

• Semiannual team off-sites

• Get invited to exclusive parties

The anticipated annual salary for this position is $145k-$205k, plus a generous equity package. This range does not include any other compensation components or other benefits for which an individual may be eligible (other benefits listed above). The actual salary offered depends on a variety of factors, which may include as applicable, the qualifications of the individual applicant for the position, years of relevant experience, specific and unique skills, level of education attained, certifications or other professional licenses held, and the location in which the applicant lives and/or from which they will be performing the job.

We’re an equal-opportunity employer and strongly encourage applicants from traditionally underrepresented backgrounds to apply. We’re proud to be a diverse team and actively work to bring new perspectives to the table.

We’re an equal-opportunity employer and strongly encourage applicants from traditionally underrepresented backgrounds to apply. We’re proud to be a diverse team and actively work to bring new perspectives to the table.