Senior C++ Embedded Developer (f/m/x)

Sii Poland; Bydgoszcz; On-site; PLN 120,000 - 180,000; Full time

Job summary

Sii Poland is seeking an experienced embedded C++ engineer to help develop high‑level software layers for communication modules in industrial devices. The role focuses on creating robust, scalable components used across hardware platforms, with emphasis on architecture, network communication, and reliability.

You will work in a team, navigate a large codebase, and communicate in Polish and English. The ideal candidate has 5+ years of C++ in embedded environments, RTOS, Ethernet/TCP-IP, and a

Qualifications

• Minimum 5 years of experience programming in C++.
• Knowledge of embedded systems and RTOS.
• Good knowledge of communication protocols, including Ethernet and TCP/IP.
• General knowledge of networks and the OSI (Open Systems Interconnection) model.
• Ability to debug embedded devices.
• Advanced proficiency in English and Polish.
• Required to reside in Poland.

Responsibilities

• Maintaining and developing software for communication modules of industrial devices
• Refactoring and testing existing solutions
• Collaborating with the development team to define and evaluate proposed solutions
• Cooperating with other teams within the organization regarding software functions and product development directions
• Navigating a large codebase and communicating in Polish and English

Skills

C++

Embedded systems

RTOS

Ethernet TCP/IP

OSI model

Debugging

English

Polish

Tools

Python

STL

Job description

Join the team developing the next generation of software for industrial control systems and communication modules. The project focuses on creating and advancing advanced embedded C++ components used in industrial automation solutions.

The work involves developing a high-level software layer responsible for communication, integration, and key system functions. The project emphasizes the development of high-level software components and services designed to be used across various hardware platforms. Strong focus is placed on system architecture, network communication, reliability, and software scalability.

Your tasks

• Maintaining and developing software for communication modules of industrial devices
• Refactoring and testing existing solutions
• Collaborating with the development team to define and evaluate proposed solutions
• Cooperating with other teams within the organization regarding software functions and product development directions
• Navigating a large codebase and communicating in Polish and English

Requirements

• Minimum 5 years of experience programming in C++
• Knowledge of embedded systems and real-time operating systems (RTOS)
• Good knowledge of communication protocols, including Ethernet and TCP/IP
• General knowledge of networks and the OSI (Open Systems Interconnection) model
• Ability to debug embedded devices
• Advanced proficiency in English and Polish
• Required to reside in Poland

Nice to have

• Knowledge of Python
• Familiarity with the Standard Template Library (STL)
• Experience working in Scrum methodology

Job no. JOB-ZRY9C

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 brandsCentre 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