Sephora is looking for a talented Software Developer specializing in .NET technologies to join our dynamic engineering team based in Lisle, Illinois. This full-time position offers the opportunity to work on innovative solutions that power one of the world's leading beauty retailers. The successful candidate will contribute to the development of high-quality software applications that support our digital transformation initiatives and enhance operational efficiency across our global network of stores and online platforms. In this role, you will be responsible for designing, coding, testing, and deploying .NET applications while collaborating closely with cross-functional teams including product managers, UX designers, and quality assurance specialists. Key responsibilities include analyzing business requirements and translating them into technical specifications, developing and maintaining enterprise-level web applications using C# and ASP.NET, implementing secure coding practices, participating in code reviews to ensure software quality, troubleshooting production issues, and optimizing application performance. You will also contribute to technical documentation, mentor junior developers, and stay current with emerging technologies and industry best practices. To be successful in this position, candidates must possess a bachelor's degree in computer science, engineering, or a related field along with proven professional experience developing applications using the Microsoft .NET framework. Strong proficiency in C#, ASP.NET, SQL Server, and web development technologies is essential. Experience with cloud platforms such as Azure, version control systems like Git, and agile development methodologies is highly desirable. Excellent problem-solving abilities, strong communication skills, and the capacity to work effectively both independently and as part of a collaborative team are required. Sephora offers a comprehensive benefits package including competitive compensation, health and wellness programs, retirement savings plans, generous employee discounts on premium beauty products, flexible work arrangements, and opportunities for professional development. Employees enjoy working in a creative, inclusive environment that values innovation and continuous learning. The company is committed to supporting career growth through training programs, mentorship opportunities, and clear pathways for advancement within the technology organization. As a member of the LVMH group, Sephora provides exposure to global retail technology initiatives and the chance to make meaningful contributions to projects that impact millions of beauty enthusiasts worldwide.