Senior Software Engineer - Mobile Connectivity

United States Digital Space LLC; Deutschland; Vor Ort; EUR 85.508 - 87.264; Vollzeit

Zusammenfassung

United States Digital Space LLC seeks a Senior Software Engineer for Mobile Connectivity to develop and optimize Android applications for smart locks. This role involves architecting communication protocols between smartphones and embedded lock hardware while analyzing complex connectivity issues.

The ideal candidate has a Master's Degree in Computer Science and at least two years of experience in software engineering, particularly with Android SDK development and IoT products. Telecommuting is permitted, offering a salary range of $97,386 – $99,386 per year.

Qualifikationen

• Two years of experience in software engineering focused on mobile connectivity and IoT products.
• Experience in Android architecture patterns such as MVVM, MVI, and Clean Architecture.
• Ability to collaborate with hardware/firmware teams and troubleshoot communication issues.

Aufgaben

• Develop and optimize Android applications for smart locks.
• Architect efficient communication protocols between smartphones and embedded lock hardware.
• Mentor and advise engineers on best practices for wireless connectivity.

Kenntnisse

Android SDK development with Kotlin and Java

BLE GATT communications

NFC integration

Asynchronous programming using Coroutines and RxJava

Dependency injection (Hilt)

Unit and integration testing

Ausbildung

Master of Science Degree in Computer Science

Tools

CI/CD pipelines

BLE sniffers

Logic analyzers

Jobbeschreibung

Senior Software Engineer – Mobile Connectivity – Olivette, MO. Telecommuting is permitted

Develop and optimize Android applications for smart locks: implement features for unlocking doors, data sync, and firmware upgrades over BLE and NFC to ensure fast, reliable over‑the‑air operations. Architect efficient communication protocols and data transfer mechanisms between smartphones and embedded lock hardware, optimizing for speed, security, and reliability in BLE/NFC connections. Contribute to multiple products including the flagship Door Android app, companion iOS app, an Android‑based intercom device app for building entry, and the OpenKit SDK that enables third‑party apps to unlock doors without our native app. Work closely with firmware engineers and backend developers to integrate mobile apps with IoT devices; define and refine APIs for mobile‑to‑cloud communication and ensure end‑to‑end functionality from the mobile app through the cloud to the device. Analyze and resolve complex issues in the field, including reading hardware logs and debugging BLE GATT communications. Work hands‑on with firmware and hardware tools to diagnose communication problems and improve system stability. Profile and enhance the performance of Bluetooth and NFC interactions (e.g. connection latency, data throughput) to provide a “snappy” user experience for unlocking and updates. Ensure the mobile connectivity stack is robust against interruptions and varying signal conditions. Serve as the go‑to expert on BLE and NFC within the organization. Mentor and advise other engineers on best practices for wireless connectivity and asynchronous programming. Stay up‑to‑date with the latest Android SDK features, Bluetooth updates, and IoT industry trends. Prototype and incorporate new technologies to maintain our competitive edge in smart access solutions.

Requirements & Qualifications

• Applicant must have Master of Science Degree in Computer Science, Computer Engineering, or closely related field
• At least two (2) years of professional experience in software engineering with a focus on mobile connectivity and Internet of Things (IoT) products
• Experience in Android SDK development using Kotlin and Java; designing and implementing BLE GATT communications; Near Field Communication (NFC) integration; Android architecture patterns such as MVVM, MVI, and Clean Architecture; asynchronous programming using Coroutines and RxJava; collaborating with hardware/firmware teams; and troubleshooting device communication using BLE sniffers, logic analyzers, and firmware logs
• Experience in dependency injection (Hilt) and unit testing, integration testing, CI/CD pipelines

Must have proof of legal authority to work in the United States. 40 hours per week, Monday to Friday 9:00 a.m. to 5:00 p.m. Telecommuting is permitted. Salary range: $97,386 – $99,386 per year.