Senior Software Engineer - .NET, C#, WPF

Boston, MA100% RemoteFull Time$115k - $130kJob Description A Global Software Engineering company is seeking a Senior Software Engineer to develop and extend business applications for enterprise clients while providing technical leadership and mentorship to the development team. Working within an Agile Scrum environment, you will build and enhance applications across desktop and mobile platforms, including WPF, UWP, iOS, and Android. This role combines hands-on software development with project ownership, client engagement, and solution design. You will contribute to architecture decisions, lead technical discussions, support customer implementations, and help deliver high-quality applications built on the CORE platform. Technologies include .NET, C#, WPF, Xamarin Forms, MVVM, XAML, XML, and JSON. Required Skills & Experience 8+ years of software development experience using .NET/C# for Windows, desktop, and mobile applications. Strong expertise with Microsoft .NET Framework and C#. Experience working through the full software development lifecycle. Knowledge of Xamarin or WPF. Experience developing POS solutions for counters, kiosks, or handheld devices. Experience with at least one CORE platform, including Essential, ECP7, or Riposte Application. Experience with at least three peripherals such as scanners, CDUs, receipt printers, or label printers. Experience supporting workflows including payment, mailing, receipts, and PUDO. Post-secondary education in Computer Science or Software Engineering. Must be able to meet security clearance requirements. Desired Skills & Experience Experience with .NET Core. Knowledge of PCL and Shared Code architectures. Strong experience with WPF, MVVM, and XAML. Experience developing Xamarin Forms applications for iOS, Android, Windows Phone, and UWP. Excellent problem-solving, presentation, and communication skills. Detail-oriented, self-motivated, and committed to staying current with emerging technologies. What You Will Be Doing Daily Responsibilities 100% Hands On Develop and extend software features for customer solutions built on the CORE platform. Troubleshoot, debug, and resolve complex technical issues. Write and maintain unit tests. Take technical ownership of assigned customer projects. Lead client reviews, demonstrations, and project presentations. Assist with the architecture and design of new features and application enhancements. Perform application performance tuning and optimization. Participate in code reviews and contribute to development standards. Mentor and support other members of the development team. Make changes to the CORE framework when required and serve as a subject matter expert for selected peripherals and workflows. The Offer Bonus OR Commission eligible You will receive the following benefits Medical Insurance Dental Benefits Vision Benefits Paid Time Off (PTO) 401(k) {including match – if applicable} Applicants must be currently authorized to work in the US on a full-time basis now and in the future.