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

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

Benefits offered by this job

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

Job summary

Sii Poland in Poland is seeking a seasoned embedded software engineer to maintain and develop communication modules for industrial devices, focusing on high‑level software layers and scalable architectures across multiple hardware platforms.

The role requires 5+ years in C++, strong RTOS and networking knowledge (Ethernet, TCP/IP), and fluent Polish and English. You will navigate a large codebase, refactor existing solutions, and collaborate with cross‑functional teams.

Qualifications

• Minimum 5 years of C++ programming experience.
• Experience with embedded systems and RTOS.
• Strong knowledge of Ethernet/TCP-IP protocols.
• Polish and English proficiency in professional environment.
• Based in Poland.

Responsibilities

• Maintain and develop software for communication modules in industrial devices.
• Refactor and test existing solutions.
• Collaborate with development teams to evaluate solutions.
• Coordinate with other teams on software functions and product directions.
• Navigate large codebase and communicate in Polish and English.

Skills

English communication

Polish language

Team collaboration

Problem solving

Code comprehension

Tools

C++

RTOS

Ethernet

TCP/IP

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