IoT Embedded Telematics Engineer — Flexible Hours & OTA

Facomsa; Lliçà de Vall; On-site; EUR 42,000 - 56,000; Full time

Job summary

Facomsa is expanding its R&D Connectivity team in Spain to develop a next-generation Telematics Control Unit (TCU). You will work on end-to-end firmware for embedded MCUs, connecting vehicles to the cloud over 4G/5G, with secure OTA updates and ISO/SAE 21434 alignment.

Responsibilities include implementing MQTT communication, CAN bus data acquisition, and secure boot/certs, while collaborating with Hardware, Software and Validation teams to bring innovative mobility solutions to market.

Qualifications

• Degree in Telecommunications or related technical field.
• Solid C programming for embedded systems.
• Knowledge of MQTT, TCP/IP, HTTP/REST; basic cybersecurity concepts.
• Familiarity with CAN bus and automotive networks.

Responsibilities

• Develop TCU firmware in C for automotive MCUs.
• Implement cloud integration using MQTT and AWS IoT SDK.
• Integrate CAN bus to collect data from ECUs.
• Design secure firmware update mechanisms (FOTA) per ISO 24089.
• Collaborate with hardware, software, and validation teams.

Skills

C programming

IoT protocols

CAN bus

Cybersecurity basics

Self-starter

Education

Engineering degree in Telecommunications / Computer Science / Electronics

Tools

MQTT

AWS IoT Core

FOTA concepts

Job description

Facomsa is expanding its R&D Connectivity team in Spain to develop a next-generation Telematics Control Unit (TCU). You will work on end-to-end firmware for embedded MCUs, connecting vehicles to the cloud over 4G/5G, with secure OTA updates and ISO/SAE 21434 alignment.

Responsibilities include implementing MQTT communication, CAN bus data acquisition, and secure boot/certs, while collaborating with Hardware, Software and Validation teams to bring innovative mobility solutions to market.