Sr Software Engineer

Resideo Technologies Inc.; Austin (TX); On-site; USD 120,000 - 180,000; Full time

Job summary

Resideo Technologies Inc. in Austin, TX, seeks a Senior Full Stack Software Engineer to build scalable mobile and web experiences for IoT HVAC and smart home devices, focusing on delightful customer journeys.

Join a cross‑functional team partnering with cloud, product, and AI/ML to ship features, establish engineering patterns, and deliver robust APIs across platforms.

Qualifications

• 4–6+ years of software engineering focusing on UX or mobile apps.
• Strong understanding of .NET, C#, and networking.
• Experience with a framework for iOS/Android (Xamarin/MAUI or Flutter).
• Knowledge of database design and usage.
• Hands-on experience with product launch and go‑to‑market strategies.

Responsibilities

• Build and maintain scalable Mobile and Web apps for connected HVAC devices.
• Collaborate with cloud, product, and AI/ML teams to enable new features.
• Contribute to platform improvements and establish engineering patterns/documentation.

Skills

Mobile app development

C# / .NET

Frameworks: Xamarin/MAUI or Flutter

Database design

Product launch experience

Tools

Terraform

CI/CD

GitHub Actions

Job description

Welcome to Resideo, where we’re transforming homes into intelligent, efficient, and secure living spaces through the power of IoT‑connected devices. As a Full Stack Senior Software Engineer, you will be at the core of our mission—building robust, scalable Mobile and Web app flows as well as the corresponding API endpoints to support them, with the focus on creating a delightful experience for the customer.

You will work across a modern software stack to ingest, process, and serve high‑volume telemetry from HVAC, security, and energy systems. You will partner with software engineers, data scientists, product managers, and platform engineers to drive the implementation of hardware installation, data visualization and real‑time alerting. This is a high‑impact role for a hands‑on engineer who thrives in fast‑moving environments and possesses strong software design and coding skills.

KEY RESPONSIBILITIES

• Build and maintain scalable, reliable Mobile and Web applications to support connected HVAC and smart home devices.
• Collaborate with cloud, product, and AI/ML teams to deliver software capabilities that support new features and customer experiences.
• Contribute to platform improvements and help establish engineering patterns, templates, and documentation.

YOU MUST HAVE

• 4-6+ years of experience in software engineering with a focus on UX or mobile app development.
• Strong understanding of .NET, C# and networking.
• Strong skills in at least one framework (e.g. Xamarin/MAUI or Flutter) developing for both iOS and Android.
• Understanding of database design and utilization.
• Hands‑on experience with product launch and go‑to‑market strategies.

WE VALUE

• Exposure to connected devices or IoT‑related systems.
• Ability to traverse the entire software stack.
• Knowledge of HVAC, smart home, or industrial systems a plus.
• Experience working with Infrastructure‑as‑Code (e.g., Terraform), CI/CD and GitHub actions.
• A pragmatic mindset—balancing engineering excellence with speed and business impact.
• A strong sense of ownership and pride in shipping high‑quality, maintainable systems.