Looking for a job

Trí Đặng

@trng

Message

Mobile Application Developer at AgileOps building BLE fitness streaming, OTA updates, and telehealth calling.

Vietnam

Message

What I'm looking for

I’m looking for an environment that requires deep technical problem-solving and architectural ownership.

At AgileOps, I develop native Android and Flutter applications for IoT and health tech clients, with a focus on advanced BLE integration.

I architected a BLE data streaming and visualization platform for mobile and wearable fitness devices, including an OTA firmware update mechanism.

I engineered the native Android Bluetooth layer for an IoT automotive control system, enabling remote vehicle control from mobile and WearOS devices. I also delivered peer-to-peer video and voice calling in a Flutter telehealth application using WebRTC.

At CrossBar Inc., I architected a secure decentralized wallet SDK and migrated its core logic to Kotlin Multiplatform. Earlier, at Sun* Vietnam, I designed and developed a Kotlin e-commerce application for a market of over 2 million users.

Experience

Work history, roles, and key accomplishments

Current

Mobile Application Developer

Current

AgileOps

Dec 2022 - Present (3 years 10 months)

* Developed and maintained native Android and Flutter applications for IoT and health tech clients, specializing in advanced Bluetooth (BLE) integration.

* Architected a real time data streaming and visualization platform via BLE for mobile and wearable fitness devices, incorporating a full OTA firmware update mechanism.

* Engineered the native Android Bluetooth communication layer for a widely

Mobile Developer

CrossBar Inc.

Jun 2024 - Dec 2025 (1 year 6 months)

* Architected and engineered a multi-layered, secure mobile SDK for a decentralized wallet from scratch, overseeing the entire lifecycle from initial design to production-level maintenance.

* Initially built separate native SDKs for Android (Kotlin) and iOS (Swift) on top of a core library compiled from Go (using gomobile) that handled the core Multi-Party Computation (MPC) logic.

* Created a un

Mobile Application Developer

Sun* Vietnam

Jan 2021 - Dec 2021 (11 months)

Designed and developed a large scale e-commerce application in Kotlin, architecting a clean and scalable system to reliably serve a market of over 2 million users.