Principal Software Engineer (.NET)

How you'll make an impact:

• You will integrate backend databases with .NET APIs to ensure seamless data access and manipulation.
• You will design and optimize complex MS SQL Server queries and stored procedures for high-performance applications.
• You will implement robust logging and monitoring solutions for production systems to enhance reliability.
• You will develop solutions to improve system performance and scalability with an understanding of prevalent SDLC methodologies or participation in Agile/Scrum techniques
• You will provide first-level support for software-related issues raised by team members.
• You will support, maintain, and document software functionalities following Agile/Scrum methodologies.
• You will mentor and monitor junior team members to boost team efficiency.
• You will collaborate with cross-functional teams to define system architecture, technical roadmaps, and take ownership of project delivery, including planning, estimation, and reporting.
• Living Hitachi Energy's core values of safety and integrity which means taking responsibility for your own actions while caring for your colleagues and the business.

• Minimum bachelor's degree in Computer Engineering or equivalent with 7+ years of professional experience in the .NET ecosystem.
• Deep knowledge and hands-on experience with .NET Core, ASP.NET Core, SOLID principles, design patterns, and Web Application/Web API development, including middleware, dependency injection, routing, filters, and RESTful API design.
• Proficiency in Entity Framework Core (ORM, LINQ, migrations, performance tuning), MS SQL Server, basic understanding of SQL CLR, and strong knowledge of system design and architecture for scalable, maintainable, and secure enterprise systems.
• Proven experience working with Win Forms desktop applications, Office COM Add-Ins, Windows Service programming, Application Installers, and familiarity with web services (SOAP, REST) and API testing tools like SOAPUI, Postman, and Fiddler.
• Knowledge of monitoring tools, logging frameworks, and version control using Git with branching strategies, pull requests, CI/CD pipelines; familiarity with CI/CD tools such as Azure DevOps and Jenkins.
• Strong analytical and troubleshooting abilities across UI, API, and DB layers; excellent verbal and written communication and documentation skills; Knowledge of PHP, JavaScript is a plus.