Senior Mobile Engineer – React Native

Gravity IT Resources; Miami (FL); Hybrid; USD 110,000 - 150,000; Full time

Job summary

Gravity IT Resources in Miami, FL is seeking a Senior Mobile Engineer to design and ship production-grade React Native apps for a large user base. You will own features end-to-end, profile performance bottlenecks, and collaborate with product, design, backend, and architecture teams to define scalable mobile solutions.

The role emphasizes deep technical work, mentoring engineers, and delivering robust experiences across iOS and Android, with hybrid work options in a fast-paced, production

Qualifications

• BS in Computer Science or related field or equivalent experience developing and maintaining complex consumer mobile applications
• Advanced React Native experience (preferably React Native New Architecture); 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

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

Skills

React Native

TypeScript

Redux

CI/CD

Performance profiling

App Store / Play Store publishing

Education

BS in Computer Science/related field

Tools

TanStack Query

REST/JSON services

Job description

Job: Senior Mobile Engineer – React Native
Location:Miami, 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

Equal Employment Opportunity Statement
Gravity IT Resources is an Equal Opportunity Employer. We are committed to creating an inclusive environment for all employees and applicants. We do not discriminate on the basis of race, color, religion, sex (including pregnancy, sexual orientation, or gender identity), national origin, age, disability, genetic information, veteran status, or any other legally protected characteristic. All employment decisions are based on qualifications, merit, and business needs.