Senior C++ Developer

Salary: 1100-1400 pln/md on B2B

Remote: hybrid from Kraków (1-2 days per week from the office)

Why choose this offer?

• You can expect a flexible work organization
• The international work environment will give you the opportunity to interact with the English language on a daily basis
• The Jit community will bring you a nice time during regular integration meetings
• Work on cutting-edge technologies supporting the global energy transition
• Collaborate with international teams and industry experts

Project

The project is part of the Grid Automation domain, focused on developing innovative solutions for the power systems of the future. The team is responsible for designing and building high-performance, secure, and reliable software applications using modern C++ (C++17/20) , with a strong emphasis on real-time operation, system resilience, and long-term product support.

As part of this initiative, engineers develop mission-critical software that supports energy infrastructure worldwide. The solutions are designed to meet demanding requirements for reliability, efficiency, cybersecurity, and continuous operation in real-time environments.

The role offers close collaboration with global R&D and technology teams, bringing together specialized expertise and advanced engineering capabilities. Team members have a direct impact on the development of next-generation products that help ensure the stability, safety, and modernization of critical power systems. This is an opportunity to work on complex, cutting-edge technologies while contributing to software that delivers long-term value and supports essential infrastructure on a global scale.

Responsibilities you'll have

• Develop system design in areas like multithreading, synchronization, I/O, and latency requirements for real-time operation
• Develop high-performance C++ cores to managed runtime services (.NET, RUST) with minimal latency overhead
• Implement performance optimization and scalability : profile threading behavior, minimizing lock contention, reducing memory allocations in critical paths, and ensure predictable latency at scale
• Maintain high code quality through code reviews, unit testing, and adherence to SOLID, KISS, DRY and industry best practices
• Participate in system design, best practices and maintaining code quality in performance-critical sections
• Participate in technical architecture reviews, design documentation, and roadmaps for feature development, refactoring initiatives, and legacy code modernization, collaborate with engineering, product, and business stakeholders to transform requirements into clear architectural designs
• Support strategic technology decisions on dependencies, build tooling, dependency management, and secure software supply chain practices, maintain cross-platform support: drive modernization of build systems, ensure consistency across multiple deployment environments, and support Linux/Windows compatibility
• Practical Linux development and deployment strategies
• Contribute to achieving business goals by designing, developing, and delivering high-quality software solutions
• Continuously enhance existing systems and contribute to the creation of new features
• Work effectively within an agile environment, continually expanding your technical expertise and understanding of the business domain, actively participate in a cross-disciplinary team and contribute to shared objectives

Expected competences and knowledge

• University degree in computer science, engineering, or a related technical field
• 8+ years of experience in senior technical roles
• Advanced proficiency in modern C++ (C++17/20) with deep understanding of RAII, smart pointers, STL, concurrency, and memory management
• Practical knowledge of C# development in plus
• Strong experience with multithreading, synchronization primitives, asynchronous I/O and real-time system design
• Proficiency with building systems (CMake, Visual Studio) and cross-platform development for Windows and Linux
• Experience with containerization technologies (Docker, Kubernetes) and microservices architecture patterns
• Demonstrated experience with performance profiling, optimization, and low-latency systems
• Understanding of software architecture principles and secure, scalable system design
• Excellent problem-solving skills and the ability to tackle complex technical challenges
• Good understanding of unit and integration testing techniques and testing frameworks
• Knowledge of non-functional requirements (performance, scalability, security)
• Practical experience developing systems for power grid management and monitoring
• Understanding of power grid operations and applicable standards
• Experience with industrial automation systems (SCADA, IED, RTU)

Technologies you'll work with

• C++ 17/20
• RAII, smart pointers, STL
• C#
• .NET, RUST
• CMake, Visual Studio
• Windows, Linux
• Docker, Kubernetes
• Microservices
• SCADA, IED
• SOLID, KISS, DRY
• Agile

Client – why choose this particular client from the Jit portfolio?

Our Client is an established global technology leader driving the digital transformation and innovation required to accelerate the transition toward a carbon-neutral future . Serving customers across the utility, industry, and infrastructure sectors, they provide cutting-edge solutions and services across the entire energy value chain. The organization is actively evolving the worlds energy systems to make them more sustainable, flexible, and secure, while precisely balancing social, environmental, and economic value. With a proven track record and an unparalleled installed technological base spanning well over 100 countries, the company operates on a massive global scale.

About Jit Team

The Human Factor of IT - it’s not just a slogan, it’s a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 770 experienced experts , to whom we offer developmental projects, a wide range of benefits, and a proprietary professional development programme. Together with clients from around the world, we create innovative IT solutions delivered by highly specialised and efficient teams.

Behind our maxim are also charitable and educational activities. We support schools, universities, and educational institutions by conducting workshops, running educational projects, sponsoring events, and donating learning equipment. We offer internships that help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We also support numerous charitable organisations helping people in need, children, and the elderly. We are a Polish company and we share what we have achieved over more than 15 years of activity. By supporting local initiatives, we contribute to the circulation of good energy.