Senior Software Engineer - React Native

3Pillar is an AI transformation partner on a mission to help enterprises build the AI-native products and intelligent agents that will define the next era of business. With teams across North America, Europe, Latin America, and Asia, we work with the most ambitious companies in financial services, healthcare, media, and technology — helping them move faster, modernize boldly, and compete on their own terms. Our HelixAI platform and Helix Pods delivery model put our engineers at the center of real agentic transformation — doing work that is open, portable, and built to last. We are building the future of enterprise AI

• Facilitate effective communication with client project stakeholders regarding project status and recommendations.

• Lead the migration of legacy JavaScript code to TypeScript, ensuring high-quality, maintainable code.

• Architect and develop new features for our React Native application using modern best practices.

• Optimize the app for offline-first functionality by leveraging local databases and caching strategies.

• Work with Redux for state management and ensure seamless integration with existing architecture.

• Utilize Expo to streamline development workflows and manage app deployment.

• Design and implement efficient GraphQL queries and mutations for data fetching.

• Collaborate with cross-functional teams (backend engineers, designers, product managers) to deliver a world-class mobile experience.

• Conduct thorough code reviews and mentor junior engineers on the team.

• Stay up-to-date with the latest trends in React Native, TypeScript, Expo and mobile development.

• Strong React Native – minimum 5 years of experience (Functional Components, Hooks, Advanced State Management, Memorization and Performance Optimizations) - Develop and optimize React Native applications for both iOS and Android in a production environment

• Write native iOS (Swift/Objective-C) and Android (Kotlin/Java) modules integrated with React Native

• Strong TypeScript – minimum 5 years of experience

• Expo – minimum 3+ years of experience working with latest Expo and Expo DevClient (NOT EXPO GO)

• Expo SDK experience (including Expo notifications, Expo Camera, Expo Updates)

• Expo EAS experience including (Ci/CD with EAS Workflows and GitHub Actions) – Deep understanding of Expo branches and Expo release channels.

• Expertise in state management libraries like Redux (including middleware such as Redux Thunk or Redux Saga) + RTK Toolkit.

• Solid understanding of mobile app performance optimization techniques.

• Exceptional problem-solving skills with a focus on delivering clean, maintainable code.

• Strong communication skills and ability to work collaboratively in a team environment.

• English proficiency

Additional Experience Desired:

• Strong understanding of local databases (e.g., SQLite, Realm) and offline-first mobile app strategies.

• Proficiency in working with GraphQL APIs (e.g., Apollo Client or Relay).

At 3Pillar, we offer a world of opportunity:

• Imagine a flexible work environment – whether it's the office, your home, or a blend of both. From interviews to onboarding, we embody a remote-first approach.

• You will be part of a global team, learning from top talent around the world and across cultures, speaking English everyday. Our global workforce enables our team to leverage global resources to accomplish our work in efficient and effective teams.

• We’re big on your well-being – as a company, we spend a whole trimester in our annual cycle focused on wellbeing. Whether it is taking advantage of fitness offerings, mental health plans (country-dependent), or simply leveraging generous time off, we want all of our team members operating at their best.

• Our professional services model enables us to accelerate career growth and development opportunities - across projects, offerings, and industries.

• We are an equal opportunity employer. It goes without saying that we live by values like Intrinsic Dignity and Open Collaboration to create cutting-edge technology AND reinforce our commitment to diversity - globally and locally.

Join us and be a part of a global tech community! 🌍💼 Check out our Linkedin site and Careers page to learn more about what it’s like to be part of our #oneteam!