Join Sii as a Senior/Lead .NET Developer and contribute to the development of high-performance, scalable, and enterprise-grade Windows desktop applications. In this role, you will work on mission-critical software solutions, developing current features and enhancing existing applications using modern C# and WPF technologies. You will collaborate with cross-functional teams, participate in the complete software development lifecycle, and help drive technical excellence through clean coding practices, mentoring, and continuous improvement. This is an excellent opportunity for experienced software engineers who are passionate about desktop application development and innovative technology solutions.

Your tasks
- Developing, maintaining, and enhancing Windows desktop applications using C# and WPF
- Designing and implementing scalable software solutions following OOP principles and design patterns
- Collaborating with Product Owners, QA teams, and developers to define and deliver new features
- Writing clean, efficient, reusable, and maintainable code




- Performing code reviews and ensuring software quality, performance, and reliability
- Troubleshooting and resolving application issues reported by users and stakeholders
- Mentoring junior developers and supporting team knowledge-sharing initiatives
- Contributing to Agile ceremonies and continuous improvement activities

Requirements
- 7-14 years of software development experience with strong expertise in C# and WPF
- Proven experience building and maintaining Windows desktop applications
- Strong understanding of Object-Oriented Programming (OOP), design patterns, and software architecture principles
- Hands-on experience with MVVM architecture, data binding, and WPF frameworks
- Experience working with Visual Studio, Git, Jira, Bitbucket, and Agile methodologies (Scrum/Kanban)
- Knowledge of unit testing frameworks and tools such as Moq, AutoFixture, and BDD practices
- Excellent analytical, problem-solving, and debugging

📌 Senior/Lead .NET Developer (Pune Division)
🏢 Sii Poland
📍 Pune Division