Sr Software Developer II

Mount Indie is seeking a skilled .NET Developer to support the design, development, and maintenance of customized business applications for a federal client. The ideal candidate will possess extensive experience with Microsoft development tools, front-end frameworks, and cloud-based platforms, as well as a strong ability to troubleshoot and deliver scalable, user-friendly web applications.

What you'll do:

• Collaborate with a cross-functional Agile team using tools like JIRA, Microsoft Teams.
• Work closely with stakeholders to gather and refine technical and product requirements.
• Design, develop, configure, and deploy custom .NET web solutions.
• Manage priorities across multiple projects and development team members.
• Test, debug, and maintain software while following SDLC and configuration management standards.
• Create user interface mockups, prototypes, and demo solutions to stakeholders.
• Troubleshoot, maintain, and enhance existing applications and systems.
• Conduct peer code reviews, unit and integration testing, and assist with performance tuning of applications.

What you'll need to succeed:

• Active Secret clearance
• Bachelor's degree in Computer Science, Information Technology, or related field.
• 7+ years as a .NET developer and/or SharePoint developer.
• Front-end development experience with AngularJS or ReactJS.
• Proficiency in ASP.NET MVC, C#, and web application development.
• Strong understanding of Windows SharePoint Services and scalable SharePoint-based solutions.
• Experience with SharePoint 2013 or newer, including workflow and content management.
• Experience with Entity Framework and building/maintaining Data Access Layers.
• Proficient with MS SQL, Git, TFS, SharePoint Designer, O365 Microsoft suite of applications, and SharePoint Online (including lists and libraries).
• Understanding of LDAP/Active Directory authentication and group security for SharePoint.
• Solid understanding of RESTful APIs development.
• Excellent problem-solving skills with a proactive approach to debugging and production support.
• Experience working in Agile Scrum environments and collaborating across design, QA, DevOps, and PM teams.
• Familiarity with Azure cloud services, DevOps tools, and CI/CD pipelines (Azure DevOps, Git, Bamboo, Jenkins).
• 5 days/week on site in Washington, D.C.

Nice to Haves:

• Experience developing applications for federal agencies or highly regulated industries.
• Familiarity with Azure Functions, Logic Apps, and Service Bus.
• Experience with federal cybersecurity policies and compliance frameworks.
• Background in migrating legacy .NET applications to modern React & cloud-based solutions