Build your best future with the Johnson Controls team 

As a global leader in smart, healthy and sustainable buildings, our mission is to reimagine the performance of buildings to serve people, places and the planet.  Join a winning team that enables you to build your best future! Our teams are uniquely positioned to support a multitude of industries across the globe. You will have the opportunity to develop yourself through meaningful work projects and learning opportunities. We strive to provide our employees with an experience, focused on supporting their physical, financial, and emotional wellbeing. Become a member of the Johnson Controls family and thrive in an empowering company culture where your voice and ideas will be heard – your next great opportunity is just a few clicks away! 

What we offer: 

• Competitive salary

• Paid vacation/holidays/sick time 

• Comprehensive benefits package including 401K, medical, dental, and vision care 

• On the job/cross training opportunities 

• Encouraging and collaborative team environment 

• Dedication to safety through our Zero Harm policy 

What you will do:

Johnson Controls is seeking a skilled Senior Lead Full-Stack RhoMobile Developer to join our innovative development team. The ideal candidate will have strong experience designing, developing, supporting, and modernizing cross-platform mobile applications using the RhoMobile (Rhodes) framework, delivering reliable and high-performance user experiences on iOS and Android, including offline-first field mobility solutions.

How you will do it:

• Lead the design, development, and maintenance of cross-platform mobile applications using RhoMobile / Rhodes

• Architect and implement offline-first mobile solutions, including local data storage, background sync, and conflict resolution

• Work closely with RhoConnect, Redis, and backend services to ensure reliable data synchronization

• Collaborate with UI/UX designers to implement responsive, user-friendly mobile interfaces using HTML, CSS, JavaScript, and jQuery Mobile

• Develop and integrate native extensions (iOS & Android) to support device capabilities such as camera, barcode scanning, speech-to-text, GPS, and file handling

• Perform root-cause analysis and troubleshoot complex production issues related to sync failures, performance bottlenecks, and device-specific behavior

• Lead code reviews, enforce best practices, and mentor team members on Rhodes architecture, Ruby patterns, and mobile performance optimization

• Support application releases, provisioning profiles, certificates, app store deployments, and enterprise MDM distributions

• Coordinate with backend, DevOps, and QA teams to ensure end-to-end solution stability

• Proactively identify opportunities to modernize legacy RhoMobile applications and propose migration or optimization strategies

What we look for:

• Bachelor’s degree in Computer Science, Information Technology, or a related field

• 10+ years of mobile application development experience, with strong hands-on expertise in RhoMobile / Rhodes and Microsoft MAUI

• Deep understanding of Rhodes MVC architecture, Ruby controllers, helpers, models, and extensions

• Strong proficiency in Ruby / Ruby on Rails, Python, Java , JavaScript, HTML, CSS, and jQuery Mobile

• Experience working with RhoConnect, Redis, and mobile sync configurations

• Strong knowledge of SQLite / local databases, background processing, and offline data handling

• Hands-on experience with iOS (Xcode, provisioning, IPA builds) and Android (SDK, ADB, APK builds)

• Experience developing and maintaining native extensions using Objective-C/Swift (iOS) and Java/Kotlin (Android)

• Solid experience with RESTful APIs, JSON, authentication mechanisms, and third-party integrations

• Experience with Azure Services (Function Apps, Web Apps, Timer Functions, SQL DB, Storage Services)

• Proficiency with GitHub, branching strategies, pull requests, and Azure CI/CD pipelines

• Familiarity with background sync, push notifications, and device management (MDM)

• Strong understanding of mobile security, performance tuning, and memory management

• Experience modernizing or migrating legacy RhoMobile apps to React Native / MAUI

HIRING SALARY RANGE: $100,000 - $150,000 (Salary to be determined by the education, experience, knowledge, skills, and abilities of the applicant, internal equity, location and alignment with market data.) The posted salary range reflects the target compensation for this role. However, we recognize that exceptional candidates may bring unique skills and experiences that exceed the typical profile. If you believe your background warrants consideration beyond the stated range, we encourage you to apply. To support an efficient and fair hiring process, we may use technology assisted tools, including artificial intelligence (AI), to help identify and evaluate candidates. All hiring decisions are ultimately made by human reviewers.  This position includes a competitive benefits package. For details, please visit the About Us tab on the Johnson Controls Careers site at https://jobs.johnsoncontrols.com/about-us

NOTE: This is a virtual/remote position considering candidates who reside within the United States. Eastern and Central time zones preferred.

Johnson Controls International plc. is an equal employment opportunity and affirmative action employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, age, protected veteran status, genetic information, sexual orientation, gender identity, status as a qualified individual with a disability or any other characteristic protected by law. To view more information about your equal opportunity and non-discrimination rights as a candidate, visit EEO is the Law. If you are an individual with a disability and you require an accommodation during the application process, please visit here.