Mobile Engineer

Gravity IT Resources; Miami, Fort Lauderdale (FL, FL); Hybrid; USD 120,000 - 190,000; Full time

Job summary

Gravity IT Resources is seeking a Senior Mobile Engineer (React Native) to maintain and scale a production React Native codebase, focusing on performance and developer experience.

You will own features end-to-end, mentor engineers, and collaborate with product, design, backend, and architecture teams across a hybrid Brickell, FL environment.

Qualifications

• BS in Computer Science or related field or equivalent experience.
• Advanced React Native experience with new architecture.
• Strong debugging, profiling, and performance optimization skills.
• Solid experience with Redux or similar state management.
• Strong proficiency in TypeScript.
• Solid understanding of CI/CD (GitHub Actions).
• Experience publishing React Native apps to App Store / Google Play.
• Understanding of RESTful and RPC-based web services.

Responsibilities

• Build and ship production-grade React Native apps for large audience.
• Drive adoption of modern React Native capabilities and performance improvements.
• Own features from idea to deployment on App Store / Play Store.
• Architect reusable components and modular app structure.
• Collaborate with product, design, backend, and architecture partners.
• Define mobile engineering standards and long-term direction.
• Mentor engineers through code reviews and leadership.
• Translate business goals into scalable mobile solutions.

Skills

React Native

TypeScript

Redux

Performance profiling

CI/CD (GitHub Actions)

Web services RESTful/RPC

Agile software development

Education

BS in Computer Science or related field

Tools

TanStack Query

GraphQL

Jest

Appium

Fabric/TurboModules/JSI

GitHub Actions

Job description

Job: Senior Mobile Engineer – React Native

Location: Brickell, FL (Hybrid)

What We Are Looking For

We’re looking for a Senior Mobile Engineer (React Native) to work on a long-lived, production-scale React Native codebase where architecture, performance, and developer experience are core priorities. You’ll build mobile experiences that support discovery, messaging, lead flow, and transactions for a large user base, and you’ll help drive technical direction across the mobile platform.

This role is for engineers who like going deep—profiling performance, eliminating re-render bottlenecks, designing scalable patterns, handling offline/flaky-network scenarios, and integrating with native iOS/Android when needed. You’ll collaborate with product, design, backend, and architecture partners while owning features end-to-end and mentoring other engineers.

Responsibilities

• Build and ship production-grade React Native applications used by a large, real-world audience


• Drive adoption of modern React Native capabilities and performance improvements


• Own features from idea ? architecture ? implementation ? App Store / Play Store


• Architect reusable components and modular application structure


• Collaborate closely with product, design, backend, and architecture partners


• Help define mobile engineering standards, patterns, and long-term technical direction


• Mentor other engineers through thoughtful code reviews and technical leadership


• Translate business goals into elegant, scalable mobile solutions

Required Qualifications

• BS in Computer Science/related field of study or equivalent experience developing and maintaining complex consumer mobile applications in a dynamic and fast-paced environment


• Advanced React Native experience (preferably React Native New Architecture); frameworks like TanStack Query


• Strong debugging, profiling, and performance optimization skills


• Solid experience with Redux or similar state management tools


• Strong proficiency in TypeScript


• Solid understanding of CI/CD (GitHub Actions)


• Experience publishing React Native apps to the App Store / Google Play (including approval processes)


• Understanding of web services (RESTful and RPC-based), JSON payloads, and stateless RESTful polyglot services


• Understanding of agile software development practices

Preferred Qualifications

• Familiarity with native Android (Kotlin/Java) and/or iOS (Swift)


• Experience with automated testing frameworks (Jest, Appium)


• Experience with React Native New Architecture (Fabric, TurboModules, JSI)


• Experience with TanStack Query (React Query) for server-state management


• Experience with GraphQL


• Experience building cloud-backed applications on AWS


• Search technologies like Elasticsearch/OpenSearch


• Queueing technologies


• Strong point of view on mobile UX and the ability to execute against it