Senior C++ Developer

Hitachi, Ltd.; Kraków; On-site; PLN 240,000 - 360,000; Full time

Benefits offered by this job

Private medical care

Life insurance

Fitness and wellness programs

Employee capital plans (PPK)

Equipment for home office

Job summary

Hitachi, Ltd. is seeking an experienced R&D Software Developer focused on C++ for performance-critical real-time systems. You will design and implement high-performance software in a global team, with emphasis on reliability, long lifecycle support, and security.

Strong collaboration with product and engineering teams will drive architectural decisions and deployment across Linux/Windows environments. The role prioritizes modern C++ practices, real-time design, and secure software supply chain

Qualifications

• Advanced proficiency in modern C++ (C++17/20) with deep memory management knowledge.
• Strong experience in multithreading, synchronization, and real-time design.
• Experience with cross-platform development (Windows/Linux) and build tooling.
• Familiarity with C# development is a plus and beneficial.
• Proven ability to optimize performance and reduce latency in critical paths.
• Knowledge of secure, scalable system design and software architecture.
• Experience with industrial automation or power grid related domains is a plus.
• Excellent English communication and collaboration skills.

Responsibilities

• Develop system design for multithreading, I/O, and latency in real-time operations.
• Build high-performance C++ cores and managed runtime services with low latency.
• Profile and optimize threading, reduce lock contention and allocations.
• Apply modern C++ practices and standards to code quality.
• Contribute to architecture reviews, design docs, and roadmaps.
• Collaborate with stakeholders to translate requirements into designs.
• Support technology decisions on dependencies, tooling, and secure supply chains.
• Maintain cross-platform build systems and Linux/Windows compatibility.
• Engage in Linux deployment strategies and practical development workflows.
• Deliver high-quality software while pursuing feature enhancements.
• Continuously enhance existing systems and contribute new features.
• Work effectively in an agile environment and broaden technical expertise.
• Participate in a cross-disciplinary team and shared objectives.

Skills

C++ (modern)

Real-time systems

Multithreading

Linux development

RAII/Smart pointers

C# familiarity

Performance profiling

Cross-platform (Windows/Linux)

Build systems (CMake)

Docker/Kubernetes

Education

University degree in computer science or engineering

Tools

CMake

Visual Studio

Docker

Kubernetes

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.


• 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 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.