C/C++ Firmware Engineer (f/m/x)

Sii Poland; Toruń; On-site; PLN 140,000 - 200,000; Full time

Benefits offered by this job

Great Place to Work

Solid financial situation

Contracts with big brands

Centre of internal trainings

Many experts you can learn from

Profit sharing

Regular integration events

Job summary

Sii Poland is seeking a Firmware Engineer in Toruń to join a multidisciplinary team delivering embedded solutions for international clients. You will own low-level firmware, perform SoC and board bring-up, and collaborate with hardware and software peers to optimize performance and security.

The role emphasizes hands-on debugging with JTAG, hardware interfaces like UART, SPI, and I2C, and implementing secure boot and firmware security features.

Qualifications

• 5+ years of embedded development experience.
• Strong C/C++ skills.
• Experience with JTAG and debugging tools.
• Knowledge of UART, SPI and I2C interfaces.
• Understanding of bootloaders and system bring-up.
• Very good English proficiency.

Responsibilities

• Develop and optimize low-level firmware.
• Perform SoC and board bring-up.
• Debug hardware–firmware issues.
• Work with pre-silicon validation platforms.
• Implement secure boot and firmware security features.

Skills

Embedded development

C/C++

JTAG debugging

UART

SPI

I2C

Bootloaders

English

Job description

Join Sii and play a key role in delivering enterprise-class data platforms to international clients. As a Firmware Engineer, you will be responsible for low-level firmware development, hardware bring-up, and system optimization. You will collaborate with cross-functional teams and support strategic data and analytics initiatives across the organization.

Your tasks

• Develop and optimize low-level firmware
• Perform SoC and board bring-up
• Debug hardware–firmware issues
• Work with pre-silicon validation platforms
• Implement secure boot and firmware security features

Requirements

• At least 5 years of embedded development
• Strong C/C++ skills
• Experience with JTAG and debugging tools
• Knowledge of hardware interfaces (UART, SPI, I2C)
• Understanding of bootloaders and system bring-up
• A very good command of English is required

Job no. JOB-CK4PD

Sii ensures that all hiring decisions are made solely on the basis of qualifications and competence. We are committed to equal and fair treatment of all, regardless of legally protected characteristics. At Sii, we promote a diverse and inclusive work environment, in full compliance with applicable anti-discrimination laws.

Benefits For You

• Great Place to Work
• Solid financial situation
• Contracts with the biggest brands
• Centre of internal trainings
• Many experts you can learn from
• Open and accessible management team
• Profit sharing
• Passion Sponsorship program
• Regular integration events and trips
• Comfortable and well-equipped offices
• MySii app
• Medical care