React Native Lead / Architect (hands-on)

A hands-on Mobile Architect accountable for the technical success of a customer’s mobile program, not just advising on it. You will own the architecture, raise the engineering bar for the whole team, and personally build and unblock the hardest parts. You will work with product, UX, backend, QA and senior client stakeholders, and hold your ground on technical decisions, with data, in front of the client.

What You’ll Do

• Lead design and implementation of a cross-platform React Native application for iOS and Android

• Write production code daily, including features, native modules, and tooling, and contribute to the team’s coding standards

• Define and maintain mobile architecture, including navigation, state management, offline behavior, and native module integration

• Build and maintain CI/CD pipelines and automate deployment processes for app store releases and phased rollouts

• Lead remote engineering teams across time zones, setting clear priorities, communicating decisions, and unblocking work asynchronously

• Mentor and grow mobile engineers through code reviews, pairing, and regular 1:1s

• Partner with product and design to translate business goals into scoped, testable technical plans

• Monitor app performance and stability, and drive improvements in startup time, crash rates, and responsiveness

• Make pragmatic build-versus-buy decisions for SDKs and third-party services, such as payments, analytics, and push notifications

• Participate in hiring, interviewing, and onboarding of engineers

This position description identifies the responsibilities and tasks typically associated with the performance of the position. Other relevant essential functions may be required.

• 12+ years in software engineering; 6+ years in React Native

• Must-have skills

o Expert React Native, React and TypeScript, with experience building and owning complex, large-scale mobile apps.

o Deep hands-on experience with the React Native New Architecture (Fabric, TurboModules, JSI, Codegen) and Hermes, including migrating an existing app and debugging at the bridge or native layer.

o Strong native iOS and Android depth: write, debug and review Swift and Kotlin independently; understand lifecycle, threading, memory, permissions, background execution and push notifications; fluent with Xcode, Gradle and CocoaPods/SPM and able to resolve build-system conflicts.

o State and data layer design at scale: Redux Toolkit, Zustand, TanStack Query, React Navigation, offline storage (SQLite, WatermelonDB, MMKV or similar), conflict resolution and sync strategies.

o Testing and delivery: Jest, React Native Testing Library, Detox or Maestro; CI/CD with Fastlane, GitHub Actions, Bitrise or EAS; code signing and OTA strategy (CodePush or EAS Update).

o Mobile security: secure storage, certificate pinning, token management and OWASP MASVS in practice.

o Profiling and tuning with Flipper, Xcode Instruments, Android Profiler and Hermes

o Mobile CI/CD, code signing, OTA updates, staged rollouts and store compliance

o Proven record of mentoring engineers, driving coding standards and leading under client-facing pressure.

o Strong data structures, system design and clean-code fundamentals; you will code and whiteboard live.

o Excellent communication, able to explain trade-offs to engineers and non-technical executives.

o Ability to lead remote teams across timezones

• Good to have

• Monorepos (Nx, Turborepo) * modular / micro-frontend app strategies * GraphQL, WebSockets and real-time features * accessibility (WCAG, VoiceOver/TalkBack) and design systems * Expo and EAS at scale * AWS, Azure or Firebase * BFSI, retail or healthcare domain * open-source React Native contributions * Flutter or native-first experience * AI/ML or on-device model integration

$118,000-$177,000 life insurance, vision insurance, flexible benefit account, paid holidays, sick time, 401(k), retirement plan United States, Georgia, Atlanta Oct 27, 2026 Role description, Compensation can differ depending on factors including but not limited to the specific office location, role, skill set, education, and level of experience. UST provides a reasonable range of compensation for roles that may be hired in various U.S. markets as set forth below., Full-time, regular employees accrue a minimum of 10 days of paid vacation per year, receive 6 days of paid sick leave each year (pro-rated for new hires throughout the year), 10 paid holidays, and are eligible for paid bereavement leave and jury duty. They are eligible to participate in the Company’s 401(k) Retirement Plan with employer matching. They and their dependents residing in the US are eligible for medical, dental, and vision insurance, as well as the following Company-paid Employee Only benefits: basic life insurance, accidental death and disability insurance, and short- and long-term disability benefits. Regular employees may purchase additional voluntary short-term disability benefits, and participate in a Health Savings Account (HSA) as well as a Flexible Spending Account (FSA) for healthcare, dependent child care, and/or commuting expenses as allowable under IRS guidelines. Benefits offerings vary in Puerto Rico.

Part-time employees receive 6 days of paid sick leave each year (pro-rated for new hires throughout the year) and are eligible to participate in the Company’s 401(k) Retirement Plan with employer matching.

Full-time temporary employees receive 6 days of paid sick leave each year (pro-rated for new hires throughout the year) and are eligible to participate in the Company’s 401(k) program with employer matching. They and their dependents residing in the US are eligible for medical, dental, and vision insurance.

Part-time temporary employees receive 6 days of paid sick leave each year (pro-rated for new hires throughout the year).

All US employees who work in a state or locality with more generous paid sick leave benefits than specified here will receive the benefit of those sick leave laws., Compensation range: $ 118,000.00 to 177,000.00 per year

Since 1999, UST has worked side by side with the world’s best companies to make a powerful impact through transformation. Headquartered in the United States, UST is powered by technology, driven by AI, inspired by people, and led by our purpose, we partner with our clients from design to operation. Our AI-driven digital solutions, proprietary platforms, engineering, R&D, products, and innovation ecosystem turn core challenges into impactful, disruptive business outcomes. With deep industry knowledge and a future-ready mindset, we infuse expertise, innovation, and agility into our clients’ organizations-delivering measurable value and positive lasting change for them, their customers, and communities around the world. Together, with 30,000+ employees in 30+ countries, we build for boundless impact-touching billions of lives in the process. Visit us at .