Senior Software Engineer - Mobile

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Sunlighten is on the lookout for a React Native Mobile Developer to help us build digital tools that support healthier lives. In this role, you will design, develop, test, and maintain mobile applications for iOS and Android platforms. You will also be responsible for ensuring smooth user experiences, optimizing app performance, and staying up-to-date with the latest trends in mobile development, including emerging technologies such as augmented reality (AR) and artificial intelligence (AI). This is an exciting opportunity to contribute to innovative projects in a mission-driven environment where wellness and technology go hand-in-hand.

The ideal candidate will have strong technical expertise in building cross-platform mobile applications using React Native, as well as the ability to work collaboratively with other teams (e.g., designers, backend developers, and project managers) to deliver high-quality software solutions.

At Sunlighten, we're not just about infrared saunas—we're on a mission to improve lives through innovative health and wellness solutions. As a global leader in infrared sauna therapy, we are expanding rapidly and need an enthusiastic React Native/Mobile Developer with a solutions-oriented mindset to keep Sunlighten on this incredible trajectory.

Celebrating 25 years of innovation, Sunlighten has grown from its Kansas City roots to establish a global footprint, including expansion into the UK. With the global wellness market projected to reach $7 trillion in 2026, we are proud to be part of this dynamic and holistic shift. Sunlighten prioritizes helping individuals unlock the transformative benefits of infrared saunas for a healthier, more balanced life. We have the lofty yet simple promise to help people feel better and do more of what they love. It's what drives us every day.

Duties/Responsibilities:

• Design and implement high-quality native iOS and Android components using React Native
• Write clean, efficient, and maintainable code following best practices
• Integrate backend services such as RESTful APIs, MQTT, GraphQL, or cloud-based platforms (e.g., AWS, Google Cloud) into mobile apps
• Collaborate with team members to understand requirements and deliver high-quality code
• Conduct unit testing, integration testing, end-to-end testing, and performance testing of native components and cross-platform integrations
• Use testing frameworks such as Jest or React Testing Library (RTL) to ensure the robustness of your code
• Identify and resolve bugs, inconsistencies, and issues in production builds
• Collaborate with designers, product managers, and back-end developers to understand requirements and deliver high-quality native components
• Provide design mockups for testing purposes and ensure consistency between the app and official documentation
• Participate in sprint planning meetings and review stand-up sessions
• Write clean and concise docstrings, comments, and user guides within your codebase to aid developers and users
• Maintain a comprehensive knowledge base of React Native patterns and practices for future reference
• Stay up to date with the latest trends, tools, and techniques in mobile development
• Optimize app performance by fine-tuning hardware acceleration settings, reducing app size, and improving loading times
• Explore new technologies and libraries that can enhance your skill set and improve app functionality

Requirements

• Bachelor's degree in computer science, software engineering or equivalent experience
• 5+ Years of Development Experience in React-Native
• 5+ Years of iOS and Android Native Development Experience
• 5+ Years of Agile Development Experience
• Strong understanding of React Native (including React Native Testing Library)
• Proficiency in TypeScript or JavaScript for writing production-quality code
• Experience with RESTful APIs, Firebase, or other backend services
• Familiarity with mobile platforms including iOS and Android development tools (Xcode, Android Studio, VSCode)
• Strong testing skills, including knowledge of JUnit, Jest, and React Testing Library
• Excellent understanding of cross-platform technologies such as Flutter, Flutter Testlab, or similar frameworks
• Strong problem-solving abilities and an analytical mindset to identify performance bottlenecks
• Ability to work independently under tight deadlines while maintaining high-quality standards

Benefits

• Hybrid Work Schedule: Enjoy the flexibility of working remotely part of the week.
• Competitive Paid Time Off Policy + Paid Holidays + Floating Holidays
• Fully Equipped Fitness Center On-Site
• Free Lunch Program featuring a James-Beard Award Winning Chef
• Health (HSA & FSA Options), Dental, and Vision Insurance
• 401(k) with company contributions
• Profit Sharing
• Life and Short-Term Disability Insurance
• Professional Development and Tuition Reimbursement
• Associate Discounts on Saunas, Spa Products and Day Spa Services

Sunlighten provides equal employment opportunity. Discrimination of any type will not be tolerated. Sunlighten is an Equal Opportunity / Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, sexual orientation, gender identity, disability, protected veteran status or any other characteristic protected by state, federal, or local law.

Seniority level

• Seniority level

  Mid-Senior level

Employment type

• Employment type

  Full-time

Job function

• Job function

  Other

• Industries

  IT Services and IT Consulting

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