Senior C# Developer

*Job Description – Senior C#/.NET Developer*

Position: Senior C#/.NET Developer – Offline Desktop Application

Experience: 3+ Years

Employment:Full-time

Location: Calicut / Kozhikode, Kerala

*About Fujishka Solutions-

Fujishka Solutions Pvt. Ltd. is a technology company developing ERP, POS, business management, and SaaS solutions for businesses across different markets. We are looking for an experienced C#/.NET Developer to join our development team and work on a new-generation offline Windows-based business application.

Job Responsibilities

• Develop and maintain Windows desktop applications using C#/.NET.
• Design and implement an offline-first application architecture.
• Develop local database and data storage solutions.
• Implement reliable offline/online data synchronization.
• Integrate REST APIs with cloud-based backend systems.
• Develop business modules such as Sales, Purchase, Inventory, Billing, Accounting, and POS.
• Optimize application performance and database operations.
• Implement secure authentication and data protection.
• Handle synchronization conflicts and ensure data consistency.
• Debug, troubleshoot, and resolve application issues.
• Write clean, scalable, maintainable, and reusable code.
• Participate in code reviews, testing, deployment, and technical documentation.
• Work closely with backend developers, QA engineers, UI/UX designers, and project managers.

Required Skills

• 3+ years of professional experience in C#/.NET development.
• Strong knowledge of C# and .NET / .NET Core.
• Experience developing Windows desktop applications.
• Strong knowledge of Object-Oriented Programming and SOLID principles.
• Good experience with SQL Server.
• Experience with Entity Framework / Entity Framework Core.
• Experience developing and consuming REST APIs.
• Experience with offline databases and data synchronization.
• Knowledge of asynchronous programming and multithreading.
• Experience with Git/version control.
• Strong debugging and problem-solving skills

Preferred Skills

• WPF / WinForms / WinUI.
• .NET 6/7/8+ or latest .NET technologies.
• SQLite or other local database technologies.
• Experience with offline-first applications and background synchronization services.
• ERP / POS / Accounting / Inventory application development.
• Printer and barcode scanner integration.
• Windows application deployment and auto-update.
• AWS / Azure knowledge.
• Networking and client-server architecture.

Key Technical Requirement

The candidate should have experience or strong understanding of building applications that can work without an internet connection and synchronize data automatically when connectivity is restored.

Windows Application → Local Database → Offline Transactions → Sync Engine → REST API → Cloud Server

Qualifications

• Bachelor's degree in Computer Science, IT, Engineering, or related field preferred.
• Strong analytical and problem-solving skills.
• Good communication and teamwork skills.
• Ability to work independently and take ownership of assigned modules.

Recruitment Title

Senior C#/.NET Developer – Offline ERP/Desktop Application | Experience: 3+ Years

Pay: ₹35,000.00 - ₹50,000.00 per month

Benefits:

• Flexible schedule

Work Location: In person