Overview: Founded in 1982 and based in Norcross, GA, Immucor is a global leader in transfusion and transplantation diagnostics products that facilitate patient / donor compatibility worldwide. Our mission is to ensure that patients in need of blood, organs, or stem cells get the right match that is safe, accessible, and affordable. The result is life changing for patients in need of a transfusion or transplant. Our new corporate identity illustrates the right match of donors with patients in need of blood or a specific organ, as well as Immucor’s partnership with healthcare organizations in need of innovation and productivity. With the right match, we can transform a life together! Immucor is seeking a Sr. Software Engineer for our Waukesha, Wisconsin site. The Sr. Software Engineer will participate in software development for medical device applications. If you are interested in helping to save patient lives, this may be the role for you! This position is not eligible for sponsorship for work authorization by Immucor, Inc. Therefore, if you will requires sponsorship from us for work authorization now or in the future, we cannot consider your application at this time. Responsibilities: Responsibilities span the software development life-cycle, including requirements definition, design, construction, test, and maintenance. Conducts feasibility of proposed designs to determine their ability to function as intended. Develop and maintain detailed documentation for both internal and external customers. Operates within defined processes and procedures to identify necessary activities and determine appropriate actions. This role is essential for maintaining reliable, compliant medical device applications while meeting FDA and international regulations. Qualifications: Education: Bachelor's degree in Computer Science, Software Engineering, Computer Engineering, or related technical field Experience: Minimum of 5+ years of professional software development experience and demonstrated track record of successfully delivering complex software products. Management has the discretion of substituting relevant work experience for a degree and/or making exceptions to the requirements for years of experience. Strong foundation in .NET development technologies and related frameworks Strong proficiency in C# and .NET Framework Expertise in XAML for WPF development Proficiency in T-SQL for database development Proven expertise in modern software architecture and design principles for enterprise applications Understanding of MVVM pattern for WPF applications Experience with dependency injection Knowledge of SOLID principles and their application in .NET Understanding of n-tier architecture patterns Strong background in Agile development practices and modern development workflows Direct experience with Agile/Scrum methodologies Familiarity with Azure DevOps or similar project management tools Experience with sprint planning and estimation Understanding of continuous integration/continuous deployment practices Deep understanding of Microsoft SQL Server and related database technologies Strong proficiency in Microsoft SQL Server Experience writing complex T-SQL queries and stored procedures Understanding of database performance optimization Experience with Entity Framework Proficiency with modern source control and collaborative development practices Proficiency with version control systems Experience with branching strategies and merge conflict resolution Familiarity with code review processes Experience with collaborative development using Azure DevOps Demonstrated knowledge of application security and enterprise authentication Knowledge of secure coding practices in .NET Understanding of authentication and authorization patterns Experience with Windows authentication and Active Directory Familiarity with OWASP security principles Excellent communication skills, both written and verbal. Ability to write clear technical documentation Experience contributing to technical design documents Capability to explain complex technical concepts to non-technical stakeholders Strong collaboration skills for working in cross-functional teams This position requires minimal travel. Expect to travel approximately 5% annually. These trips will be for attending important team meetings/events where physical presence is beneficial for collaborative work sessions, strategic planning, or team-building purposes. Occasional additional travel may be required.