Embedded Software Engineer: Python HiL for Cortex-M MCU

Volvo Cars; Kraków; On-site; PLN 150,000 - 210,000; Full time

Job summary

Volvo Cars Kraków Tech Hub seeks an Embedded Software Engineer focused on Python-based testing for microcontroller firmware in Volvo's electrified infotainment systems. You will design and maintain a pytest-driven HiL integration test framework, ensuring robust coverage and reliable tooling.

The role emphasizes embedded C/C++, Python fluency, and collaboration with engineers, testers, and architects to continuously improve the test ecosystem and contribute to firmware work when needed.

Qualifications

• Embedded systems background with MCU architecture understanding (ARM Cortex-M preferred).
• Strong Python with pytest experience and test automation interest.
• Experience with or strong interest in Hardware-in-the-Loop (HiL) testing.
• Ability to read and navigate embedded C/C++ firmware codebases.
• Familiarity with CAN, UART, I2C, or SPI protocols.
• Familiarity with real-time OS concepts; SafeRTOS is a plus.
• Some familiarity with embedded toolchains (IAR, GCC) or debugging tools (ST-Link).
• Experience with Git and CI/CD workflows.
• Interest in scripting for device flashing, automation, and developer tooling.
• Openness to working primarily in Python while applying embedded knowledge.

Responsibilities

• Design, develop, and maintain the pytest-based integration test framework running on HiL setups.
• Leverage embedded background to write meaningful integration tests that validate firmware functionality.
• Ensure comprehensive test coverage, maintainable test suites, and continuously improve the test infrastructure.
• Contribute to tooling and flashing scripts; if needed, contribute to the embedded C/C++ codebase.

Skills

Python

Embedded systems

C/C++

pytest

HiL testing

CAN/UART/I2C/SPI

RTOS concepts

Git

CI/CD

Scripting for flashing

Tools

IAR

GCC

ST-Link

CI/CD tooling

Job description

Volvo Cars Kraków Tech Hub seeks an Embedded Software Engineer focused on Python-based testing for microcontroller firmware in Volvo's electrified infotainment systems. You will design and maintain a pytest-driven HiL integration test framework, ensuring robust coverage and reliable tooling.

The role emphasizes embedded C/C++, Python fluency, and collaboration with engineers, testers, and architects to continuously improve the test ecosystem and contribute to firmware work when needed.