We’re seeking a Senior Full Stack .NET Developer to join our team and help build scalable, high-performance web applications and APIs that empower thousands of product sellers worldwide. You’ll work across the full stack, from backend services to frontend interfaces, ensuring reliability, quality, and long-term scalability in a fast-evolving SaaS environment.About the ProjectYou’ll join a global software team developing a market-leading inventory management platform that supports merchants in selling, tracking, and optimizing products across multiple online and offline channels. The platform processes millions of orders per year and integrates with a wide ecosystem of e-commerce, retail, and logistics partners to simplify complex supply chain operations. This role requires a small overlap with U.S. working hours for collaboration with the client’s team.Key Responsibilities:Design, build, and maintain web applications and RESTful APIs using C#, .NET Framework, JavaScript, and SQL Server;Collaborate closely with product managers, QA engineers, and developers to translate business needs into reliable, scalable solutions;Write clean, testable, and maintainable code aligned with modern development practices;Implement efficient data access using Entity Framework and optimize queries, stored procedures, and data models;Troubleshoot and resolve application issues, including performance bottlenecks and system bugs;Participate in code reviews, mentor peers, and contribute to a culture of continuous improvement;Work in an agile environment, proactively driving the quality and evolution of business-critical systems.Qualifications:6+ years of experience in full-stack development using .NET technologies, SQL Server, and JavaScript;Proven expertise with C# and .NET Framework for building modern web applications and services;Strong proficiency in Microsoft SQL Server and understanding of query optimization and database design;Experience with Entity Framework for data access and ORM;Familiarity with Git or similar version control systems and agile methodologies;Strong problem-solving mindset and a commitment to clean, maintainable architecture.The recruitment process includes:HR screening 30min zoom call;1h technical interview;General call with the team leader;Making an offer meeting.