Staff Frontend Engineer
Toronto, ONUS Mobile
8+ ansCandidates need at least 8 years of production front-end experience, strong skills in TypeScript, React and CSS-in-JS, and experience with state management and data fetching libraries. A strong eye for UX, accessibility and responsive design is expected, along with the ability to work independently.
React, TypeScript, React Native, Tanstack Query, Redux, Zustand
Senior React Native Engineer
Montréal, QCUS Mobile
7+ ansCandidates need at least 7 years in mobile development, with 5 years of hands-on React Native work and apps launched on the App Store and Google Play. They also need knowledge of iOS and Android design principles, experience with CI/CD and over-the-air updates, and strong collaboration skills.
React Native, TypeScript, TanStack React Query, React Navigation, Expo
Senior React Native Engineer
Toronto, ONUS Mobile
7+ ansCandidates need at least 7 years in mobile development, with 5 years of hands-on React Native work and apps launched on the App Store and Google Play. They also need knowledge of iOS and Android design principles, experience with CI/CD and over-the-air updates, and strong collaboration skills.
React Native, TypeScript, TanStack React Query, React Navigation, Expo
Senior Backend Engineer
Toronto, ONUS Mobile
7+ ansCandidates need 7+ years of Java and Spring Boot experience, strong REST API skills, and hands-on work with message brokers and NoSQL databases. Strong Git, CI/CD and agile skills and good communication are also needed.
Spring Boot, RabbitMQ, AWS SQS, AWS SNS, MongoDB, Git
Principal Backend Engineer
Toronto, ONUS Mobile
10+ ansCandidates need 10+ years of Java and Spring Boot experience, strong REST API and message broker skills, and NoSQL familiarity. US Mobile also expects hands-on use of AI-assisted development tools such as Claude or Opencode.
RabbitMQ, AWS SQS, AWS SNS, MongoDB, Git, Spring Boot
Principal Backend Engineer
Montréal, QCUS Mobile
10+ ansCandidates need 10+ years of Java and Spring Boot experience, strong REST API and message broker skills, and NoSQL familiarity. US Mobile also expects hands-on use of AI-assisted development tools such as Claude or Opencode.
RabbitMQ, AWS SQS, AWS SNS, MongoDB, Git, Spring Boot