Senior Mobile Developer

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We’re helping businesses become more sustainable. Join us!

Budderfly is a fast-growing, private equity-backed energy management company that is helping the planet by reducing carbon emissions for small to medium sized enterprises. We are the premier sustainability partner for businesses with repeatable footprints such as restaurant chains, assisted living facilities, retail franchises, and more. By installing and managing a combination of patented technologies, equipment upgrades, and proprietary energy software solutions, we deliver energy savings with no investment required from our customers.

Recognized as one of Fast Company’s Most Innovative Companies of 2025 and featured on the Inc. 5000 list of America’s Fastest-Growing Companies for four consecutive years, Budderfly is driving real impact at scale.

We are an energetic, dynamic and dedicated team working together to make a positive impact on the environment while providing an excellent customer experience. We are growing quickly and looking to add talented people who are passionate about making the world a better place!

We have an opportunity for a motivated individual to fill the role of Senior Mobile Developer. The successful candidate will have expertise in .NET and MAUI and will be responsible for building clean, reliable apps for iOS and Android, making an impact through software.

Why this Role is Important:

The Senior Mobile Developer (.NET MAUI) job is critical because it ensures Budderfly's technology is user-friendly, efficient, scalable, and aligned with its broader mission of sustainable energy transformation. The Senior Mobile Developer doesn't just write code—they shape the user experience, mentor the team, and drive innovation across the mobile stack.

Responsibilities:

• Design, develop, and maintain high-quality, cross-platform mobile applications for iOS and Android using .NET MAUI.
• Collaborate closely with product managers, designers, and backend developers to translate requirements into functional mobile features.
• Write clean, scalable, and maintainable code following best practices and industry standards.
• Conduct thorough code reviews and contribute to a culture of continuous improvement and high-quality software.
• Optimize app performance, responsiveness, and user experience across devices and platforms.
• Integrate mobile applications with RESTful APIs and other backend services.
• Implement and maintain unit tests and UI testing to ensure application stability and reliability.
• Utilize native APIs as needed to meet platform-specific functionality requirements.
• Stay current with emerging mobile technologies, especially .NET MAUI, Xamarin, and mobile Dev Ops practices.
• Mentor and support junior developers, fostering skill development and knowledge sharing.
• Actively participate in Agile ceremonies, including sprint planning, daily standups, and retrospectives.

Desired Skills and Experience
:

• Bachelor’s degree in Computer Engineering, Computer Science, or a related field.
• 8+ years of professional experience developing mobile applications, with at least 2 years working in .NET MAUI or Xamarin. Forms.
• Strong proficiency in C#, .NET, and MVVM architecture, with a track record of building maintainable and scalable codebases.
• Proven experience shipping mobile apps on both iOS and Android platforms, including full lifecycle development—from concept to app store deployment and ongoing support.
• Proficient in working with RESTful APIs, JSON, and integrating mobile apps with backend services.
• Solid understanding of mobile app behaviors in real-world environments, including push notifications, debugging, and app store publishing.
• Familiarity with Git, CI/CD pipelines,…