Front End Software Engineer

We are seeking a highly skilled Front End Software Engineer specializing in React Native, to be a foundational part of a core engineering team. This role requires a unique intersection of high-end mobile UI development and specialized healthcare data knowledge. You will leverage the Medplum platform and FHIR standards to build a data-driven mobile experience that is secure, compliant, and user-friendly.

Responsibilities:

Mobile Development & UI/UX

• Develop and maintain cross-platform mobile applications using React Native and TypeScript.

• Implement complex, high-fidelity UI designs.

• Manage mobile-specific challenges, including push notifications, deep linking, and offline data persistence.

• Optimize app performance, ensuring smooth animations (60fps) and fast load times across a variety of mobile hardware.

Healthcare Infrastructure Integration

• Integrate the Medplum React Native SDK to manage authentication and clinical data synchronization.

• Interface with FHIR resources (e.g., Patient, Appointment, DocumentReference) to display and capture health information.

• Implement secure biometric authentication (FaceID/TouchID) and ensure all local storage is encrypted and HIPAA compliant.

• Work closely with the backend and web teams to ensure feature parity and a consistent experience across platforms.

Maintenance & DevOps

• Manage the mobile deployment pipeline, including App Store Connect and Google Play Console (Internal testing and production releases).

• Write clean, documented, and testable code; implementing unit and E2E tests for critical patient workflows.

• Participate in agile ceremonies and contribute to architectural decisions regarding mobile state management and data caching.

Required Skills & Experience

• 4+ years of professional experience in mobile development.

• Expertise in React Native (Architecture, bridge/JSI, and performance tuning).

• Strong mastery of TypeScript and modern JavaScript (ES6+).

• Experience with mobile state management libraries (e.g., Redux Toolkit, Zustand, or React Query).

• Proven track record of shipping and maintaining apps in the Apple App Store and Google Play Store.

• Knowledge of mobile-first styling and responsive layouts for different screen sizes/orientations.

Preferred Skills & Knowledge

• FHIR & Medplum: Direct experience with FHIR R4 resources and the Medplum ecosystem is highly preferred.

• Native Development: Experience with Swift/Objective-C or Kotlin/Java for writing native modules when necessary.

• Security: Deep understanding of OAuth2/OIDC and mobile security best practices in a healthcare context.

• Design: Experience working with Figma and a strong eye for mobile-first UX.

Perks you enjoy at KMSMexico

• Mexican law benefits
• 15 days of PTO (in year zero, from the first year onwards it is 3 days per year).
• 5 days' leave for the death of immediate family members, negotiable.
• Major Medical Expenses Insurance with coverage for immediate dependents (spouse and children).
• Annual performance bonus (≈10% of annualized salary).
• Annual salary adjustment.
• Employee Referral Bonus.
• Paid Certifications / Courses
• Coursera License.
• 5% Savings Fund.
• 5% Grocery Vouchers.

At KMS Technology, we are dedicated to delivering cutting-edge solutions and services that empower businesses to achieve their goals. Our team is composed of highly skilled professionals who are passionate about technology and innovation. We provide a dynamic and collaborative work environment where you can grow your career and make a significant impact.