Senior .NET R&D Engineer – Real-Time Grid Solutions

Hitachi Energy Ltd.; Kraków; On-site; PLN 180,000 - 300,000; Full time

Benefits offered by this job

Private medical care and life保险

Fitness and wellness programs

Benefits platform with discounts

Employee Capital Plans (PPK)

Home office equipment allowances

Spectacles and contact lenses

Company events

Psychological support

Free parking

Job summary

Hitachi Energy Ltd. in Kraków seeks an experienced R&D Software Developer focused on .NET for performance‑critical systems.

You will build high‑performance, secure software with real‑time behavior and long product lifecycles, collaborating with global technology teams to support power grid operations. We value diverse backgrounds; 8+ years in senior technical roles and strong proficiency in C#, REST Web Services, and .NET Core are required, with knowledge of Kubernetes, Docker and system

Qualifications

• University degree in computer science, engineering or related field.
• 8+ years in senior technical roles with .NET stack expertise.
• Advanced proficiency in C#, REST Web Services and .NET Core.
• High code quality via unit tests, Clean Code and SOLID.
• Hands-on with Git, Azure DevOps Pipelines, MSBuild, Docker, Kubernetes, Helm, SQL.
• Knowledge of API development/consumption and Kafka; C++ a plus.
• Experience with performance profiling, low-latency systems, scalable design.
• Familiarity with power grid tech (WAMS/WAMPAC, PMU data) and industrial protocols.
• Strong problem solving, testing methodologies and English proficiency.

Responsibilities

• Design and develop code in .NET technologies for performance‑critical systems.
• Design, develop and maintain microservices backend.
• Participate in code reviews and ensure code quality.
• Troubleshoot and fix issues found during E2E testing.
• Share knowledge and collaborate with team members.
• Propose improvements for code quality, performance and stability.
• Work with Product Owner and QA to ensure successful delivery.

Skills

.NET

C#

REST Web Services

NET Core

Git

Azure DevOps

Docker

Kubernetes

SQL

Kafka

C++

Performance profiling

Security

Power grid knowledge

Education

University degree in CS/Engineering

Tools

MSBuild

Azure DevOps Pipelines

Docker

Kubernetes + Helm

SQL tooling

Job description

Hitachi Energy Ltd. in Kraków seeks an experienced R&D Software Developer focused on .NET for performance‑critical systems.

You will build high‑performance, secure software with real‑time behavior and long product lifecycles, collaborating with global technology teams to support power grid operations. We value diverse backgrounds; 8+ years in senior technical roles and strong proficiency in C#, REST Web Services, and .NET Core are required, with knowledge of Kubernetes, Docker and system