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nguyen vien

@nguyenvien

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Embedded Systems Engineer focused on IoT security, secure boot, and TPM/TEE firmware.

Vietnam

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What I'm looking for

I’m looking for a challenging developer position where I can apply creative problem solving to embedded systems and IoT security—building secure provisioning, TPM/TEE-based trust, and secure boot—while learning new and emerging industry trends.

I’m an Embedded Systems Engineer applying creative problem solving and logical thinking to build secure, resource-efficient firmware for IoT and embedded platforms. I focus on hardware roots of trust, reliable device onboarding, and secure deployment that stands up under real constraints.

At FSS-networks, I developed a custom TPM client firmware for a resource-constrained Lattice MachXO5-NX board, implementing SPI/I2C interfaces, validating against Linux kernel module registration, and resolving critical system-hang issues from cryptographic latency in ISRs. I also built an IoT Security software module for low-end devices using netlink and Paho MQTT, and implemented ARM TEE capabilities for secure key storage, certificate management, and secure TLS workflows via OP-TEE Trusted Applications.

Across platforms, I authored Yocto recipes and built custom Yocto images for NXP i.MX and STM32MP deployments, integrating security components into distributions. Earlier, I delivered full-stack web systems and low-level high-performance HTTP services from scratch (libuv/nghttp2), strengthening my end-to-end engineering discipline from networking, concurrency, and testing to secure system design.

Experience

Work history, roles, and key accomplishments

Current

Embedded Developer - TPM

Current

FSS-networks

Jan 2025 - Present (1 year 5 months)

Developed a custom TPM client firmware for a resource-constrained Lattice MachXO5-NX board with SPI/I2C cryptographic communication to a Raspberry Pi 4. Designed the RTOS firmware architecture and resolved system-hang and watchdog timeout issues by refactoring ISR handling.

RTOS SPI I2C Cryptographic Processing TPM Lattice MachXO5 NX Raspberry Pi Debugging

Current

Embedded Developer - IoT Security

Current

FSS-networks

Jul 2023 - Present (2 years 11 months)

Built an IoT security software module for low-end microcontroller devices using Data-in-Motion security. Implemented kernel/user-space communication via netlink, secure messaging with MQTT, and developed OP-TEE trusted applications integrated into Yocto images.

C Netlink MQTT Yocto TLS

Full-Stack Web Developer

ZMP

Jul 2022 - Jul 2023 (1 year)

Developed and maintained microservice-based web applications for a platform to build, train, and deploy ML models. Designed RESTful APIs and supported AWS deployments, including EC2/S3/Lambda/API Gateway and MQTT over WebSockets.

React TypeScript REST APIs MongoDB Kubernetes AWS EC2 AWS S3 AWS Lambda MQTT

Full-Stack Web Developer

Hitachi Vantara

Jun 2021 - Jun 2022 (1 year)

Maintained and updated enterprise web applications by estimating lines of code, planning delivery schedules, and coordinating requirements with customers. Reviewed team designs and code, and supported deployment and debugging across Windows/Linux/CentOS.

Java Spring Framework REST APIs Tomcat Maven PostgreSQL CentOS Git JSON Requirements Gathering

Embedded Developer - HTTP Server

Hitachi Vantara

Aug 2018 - Jun 2020 (1 year 10 months)

Built a high-performance HTTP server from scratch using libuv, http-parser, and nghttp2 with support for HTTP/1.1, HTTP/2, keep-alive, and protocol upgrade. Implemented concurrent networking in C++, registered the app as a Windows service, and created unit tests with Google Test.

C Sockets Multithreading Http Parser RESTful APIs Test