Senior C++ Developer

About the job

Location:

Krakow, Lesser Poland, Poland

Job ID:

R0145081

Date Posted:

2026-10-28

Company Name:

HITACHI ENERGY SERVICES SP. Z O.O.

Profession (Job Category):

Engineering & Science

Job Schedule:

Full time

Remote:

No

Job Description:

Job Description

The opportunity

We are seeking an experienced R&D Software Developer focused on C++ application development for performance‑critical systems to join our technology organization.

In this role, you will develop, high-performance, and secure software systems built with modern C++ (C++17/20), with a strong focus on real-time behavior, reliability, and long product lifecycle support.

As an R&D Software Developer within the Grid Automation domain, you will help shape innovative solutions for the power systems of tomorrow.

You will work closely with global technology teams that bring niche expertise and cutting-edge capabilities. Your work will directly support the development of real-time software used in critical infrastructure worldwide software designed for long-term reliability, high efficiency, and uncompromising security.

We value diverse experience and fresh perspectives. Even if you do not meet every listed requirement, we encourage you to apply. We are excited to learn more about you and the unique strengths you can bring to our team.

How you’ll make an impact:

• 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.
• Practical usage of modern programming practices and techniques based on the latest C++ standard.
• 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.

Your Background:

• University degree in computer science, engineering, or a related technical field.
• 5+ 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 having familiarity with WAMS/WAMPAC, PMU data, and protection and control applications.
• Understanding of power grid operations and applicable standards.
• Experience with industrial automation systems (SCADA, IED, RTU) in plus.
• Experience with industrial protocols and standards (IEC 61850, IEC-60870-5-104, DNP3, OPC UA, IEEE C37.118) in plus.
• Practical experience working directly with power grid industry clients and exposure to system integration, simulators, or lab environments.
• Proven ability to translate customer requirements into clear technical designs.
• Solid understanding of numerical methods, signal processing, and control fundamentals and ability to work with high‑frequency, time‑aligned time‑series data
• Good understanding of power system dynamics and the stability challenges introduced by high penetration of renewables
• Effective team player with strong communication skills and willingness to learn.
• Excellent command of English (written and spoken).

More about us

We pride ourselves on offering a holistic range of competitive benefits to support your financial, physical and mental wellbeing and personal development. We want you to truly thrive with us, in work and out.

We can provide more information during the recruitment process.

Our benefits offering for this role generally includes:

• Private medical care and life insurance​
• Access to fitness and wellness programs​
• Access to benefits platform with discounts and perks​
• Employee Capital Plans (PPK)​
• Equipment for working from home or allowances for setting up a workplace at home​
• Spectacles and contact lenses allowance​
• Company events and team‑building activities​
• Psychological support program​
• Free parking available

You will receive more specific information during the recruitment process.

Accessibility and reasonable accommodation

Qualified individuals with a disability may request a reasonable accommodation if you are unable or limited in your ability to use or access the Hitachi Energy career site as a result of your disability. You may request reasonable accommodations by completing a general inquiry form on our website. Please include your contact information and specific details about your required accommodation to support you during the job application process.

This is solely for job seekers with disabilities requiring accessibility assistance or an accommodation in the job application process. Messages left for other purposes will not receive a response.

Use of Al and automated tools in recruitment

As part of our recruitment process, Hitachi Energy uses digital and automated tools, including Al-supported solutions, to assist with activities such as application screening, job matching, and interview scheduling. These tools are designed to support our recruiters and do not replace human decision-making. Candidate data is processed in accordance with applicable data protection and employment laws as well as Hitachi's Global Data Privacy Notice.
Background Screening and Security Checks

As part of the hiring process, Hitachi Energy conducts pre-employment background checks that may include verification of employment history, education, criminal records, and other relevant information, in accordance with applicable laws.

For certain roles—particularly those involving access to sensitive information, financial responsibilities, client data, regulated environments, or security-sensitive functions—additional or more comprehensive background or security screenings may be required. These may include, but are not limited to, enhanced criminal history checks, credit history reviews (where legally permissible), sanctions screening, or other due diligence measures aligned with the responsibilities of the position.