3 principal react native engineer jobs at 3 companies in Cotati, CA
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Principal Engineer, Unity Rewards
San Francisco or California
$228k-$342k/yrHybridFull Time
UnityNYSE: U: Provides software for creating real-time 3D interactive content.
8+ YOE8+ years building high-performance native (Swift/Kotlin) or cross-platform (React Native/Flutter) mobile apps; experience with gamification, real-time event systems, offline-first persistence, performance profiling, and strong architectural skills.
Shipt: Provides same-day delivery services from local retailers via app.
15+ YOE15+ years building and shipping production-scale frontend and backend systems; deep experience with marketplace/commerce platforms, GraphQL, cloud-native architecture, observability, and platform design.
MastercardNYSE: MA: Global payment processing and financial technology service provider.
Bachelor’s or Master’s in CS/Engineering, extensive software engineering and platform architecture experience, strong Java/JVM and Spring skills, REST/microservices, cloud-native (AWS/Kubernetes), distributed systems (Hadoop/Spark/Kafka), CI/CD and leadership skills.
Java, JVM, Spring Boot, Spring MVC, Spring Security, Spring Cloud, RESTful web services, PostgreSQL, NoSQL, React, JavaScript, TypeScript, HTML, CSS, Hadoop, Spark, Kafka, AWS, PCF, Kubernetes, Docker, CI/CD, Jenkins, Git, Maven, Gradle, SonarQube