Hybrid Embedded Software Engineer

at CEABS Serviços

• Job title: Embedded Software Engineer
• Job type: Full Time
• Experience level: Mid level, Senior
• Salary: Not specified
• Degree requirement: Bachelor's Degree
• Tech skills: IoT, Python, RTOS
• Location requirements: Hybrid, Curitiba, Brazil

About the role

• Embedded Software Engineer developing and maintaining firmware for automotive tracking devices. Collaborating on hardware validation and ensuring the reliability of embedded systems.

Responsibilities

• Develop, optimize and maintain embedded firmware for automotive tracking and telematics devices (C/C++).
• Implement, analyze and debug vehicle communication protocols, especially CAN, ISO 15765-4 (UDS), J1939 (when applicable) and proprietary protocols.
• Develop drivers, services and middleware for automotive interfaces (CAN, LIN, K-Line, OBD-II).
• Interpret and map ECU signals (DIDs, PIDs, raw CAN messages).
• Integrate sensors and embedded modules (GNSS, accelerometer, GSM/LTE, BLE, Wi‑Fi).
• Collaborate with hardware teams for prototype validation and bench testing.
• Contribute to the creation of diagnostic tools, automated tests and validation scripts.
• Perform firmware performance, power consumption and reliability analyses.
• Document architecture, embedded APIs and communication flows.
• Perform advanced field troubleshooting (logs, dumps, CAN analysis, sniffers).

Requirements

• Degree in Electronic Engineering, Control and Automation, Computer Science, Telecommunications or related fields.
• Strong experience in C/C++ for embedded systems.
• Proven experience with the CAN bus:
• Reading/writing frames
• DBC interpretation
• Use of tools such as PCAN, CANalyzer, CANoe, CANalyst-II or similar
• Knowledge of OBD-II, PIDs and relevant automotive protocols.
• Experience with RTOS (FreeRTOS, Zephyr, ThreadX, etc.).
• Familiarity with ARM Cortex MCUs (STM32, NXP, ESP32, Nordic, etc.).
• Experience using oscilloscope, logic analyzer and debug tools (SWD/JTAG).
• Solid understanding of serial communication (UART, SPI, I2C).
• Knowledge or experience with ISO 27001 (Information Security Management System).
• Knowledge of automotive telematics applied to tracking (ignition data, odometry, driving events, etc.).
• Experience with LTE-M, NB-IoT, CAT1 and modems from Quectel, Simcom, Telit.
• Experience with embedded cryptography and firmware security.
• Experience with remote firmware updates (FOTA/OTA).
• Knowledge of J1939 (for heavy-duty fleets).
• Experience with Python for test scripts or tooling.
• Experience in power consumption analysis and energy management for embedded devices.
• Familiarity with Git, CI/CD and embedded pipelines.