# Rijyel Sevilleno

Rijyel Sevilleno is a remote worker on Himalayas, Senior Embedded Systems Engineer at Fujitsu Ten Solutions Philippines, Inc., based in Philippines.

Source: https://himalayas.app/@rijyelsevilleno

```text
Embedded systems engineer at Fujitsu Ten Solutions Philippines, Inc. who cut sensor current to 18 µA and deployed secure OTA updates to 60,000+ devices.
```

| Detail | Value |
| --- | --- |
| Availability | Looking for a job |
| Location | Philippines |
| Authorized to work in | Philippines |
| Salary expectations | 30k+ USD |
| Job categories | Embedded Systems Engineer, Firmware Engineer, Hardware Engineer |
| Skills | Embedded Systems, Firmware Development, Hardware Design, PCB Design, Low Power Design, Board Bring Up, Wireless Connectivity, OTA Updates, RTOS, Embedded Linux, FreeRTOS, Zephyr, Yocto, Buildroot, Bare Metal |
| LinkedIn | https://linkedin.com/in/rijyel-sevilleno-070b87431 |
| GitHub | https://github.com/Rijyel38 |

## About

```text
At Fujitsu Ten Solutions Philippines, Inc., I led hardware and firmware for battery-powered BLE and LTE-M sensors. I cut average current from 120 µA to 18 µA and built a secure OTA update system deployed to 60,000+ devices with zero bricked units.

At CHINT Electric Philippines Corporation, I developed PLC and motor-controller firmware, designed an isolated I/O board that passed CE/EMC on its first submission, and wrote a BLDC motor driver that improved efficiency by 12%. My work spans hardware design and embedded firmware, from board bring-up through production test.
```

## Experience

### Senior Embedded Systems Engineer

Fujitsu Ten Solutions Philippines, Inc.. Jan 2023 - Dec 2025

```text
Lead hardware and firmware for battery-powered BLE and LTE-M sensors, from requirements to production. Designed 6-layer boards around nRF52840 and STM32L4, cut average current from 120 µA to 18 µA, and built a secure OTA update system deployed to 60,000+ devices.
```

Skills: NRF52840, STM32, BLE, LTE-M, OTA, Dual-Bank-Firmware-Updating, CI-CD, Hardware-In-The-Loop-Testing, Low-Power-Design, PCB-Layout

### Embedded Firmware & Hardware Engineer

CHINT Electric Philippines Corporation. Mar 2020 - Dec 2022

```text
Developed firmware for PLC I/O modules and motor controllers on STM32F4/H7 using FreeRTOS, CAN-FD and Modbus. Designed a 24 V isolated I/O board with surge protection and EMC filtering, and wrote a field-oriented control (FOC) driver for BLDC motors.
```

Skills: STM32, STM32H7, FreeRTOS, CAN-FD, Modbus, FOC, BLDC-Motor, EMC, Python, Test-Fixtures

### Junior Embedded Engineer

Pythos Technology Philippines Inc.. Jul 2018 - Feb 2020

```text
Wrote drivers for I2C sensors, SPI displays, and UART GPS for wearables and smart-home products on ESP32 and nRF52. Performed board bring-up and debugging for 5 prototype revisions and built a BLE companion protocol.
```

Skills: ESP32, NRF-52x, I2C, SPI, UART, BLE, Board-Bring-Up, Debugging

## Education

### National Instruments

Certified LabVIEW Associate Developer (CLAD), LabVIEW

```text
Certified LabVIEW Associate Developer (CLAD) certification obtained in 2022.
```

### IPC

IPC-A-610 Certification, Electronics Assembly

```text
IPC-A-610 Acceptability of Electronic Assemblies certification obtained in 2020.
```

### University of Southern Mindanao

Bachelor of Science, Electronics and Telecommunications Engineering

```text
Bachelor of Science in Electronics and Telecommunications Engineering from the University of Southern Mindanao, completed in 2018.
```

## Tech stack

- Jenkins
- GitHub Actions
- Unity
- Buildroot
- Yocto
- Python
- C++
- C
- MQTT
- Git
- Bash
- LabVIEW

To contact Rijyel, message them from this profile with a Himalayas employer account: [Hire on Himalayas](https://himalayas.app/hire).

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