Senior Full Stack Application Developer (.NET MAUI)

Come join a high-performing team developing new mobile platform offerings and pushing mobile technologies to new adopters. The right candidate will have the opportunity to fleet up to work technical architecture on the program too. We are building a cross-platform mobile app suite for diverse Government clients, to be deployed on a wide spectrum of devices in iOS, Android and Windows platforms. This is a unique opportunity to expand your mobile development skills and experience while putting valuable tools into end users’ hands. Our users are first responders and our well-crafted tools can literally save lives. 

Key Skills: 6+ years of professional experience in .NET/C# cross-platform mobile development, keen desire to learn new skills, and affinity for mobile platforms.

GXM is a team of creative professionals focused on solving problems for end users. We thrive on turning innovation into actual application working with clients who need rapid ideation and solution development for their organizations. If you are interested in working on challenging problems, making a difference for end users, and having fun along the way with a group of passionate professionals, you’ll fit right in. 

GXM provides a comprehensive benefits package. Our benefits include medical, dental, and vision insurance, employer-paid life insurance, short-term and long-term disability, 401(k) plan with employer matching, Flexible Spending Account, employer-paid parking, flexible Paid Time Off policy, and 11 Federal holidays. 

Responsibilities 

• Design and build mobile solutions to support users’ mission-critical requirements. 
• Work on all layers of the mobile application (backend, data, GUI, middle). 
• Work with a talented cross-functional team of engineers, testers, and domain experts to design, build, and test new mobile solutions for government customers. 
• Support end users by creating innovative solutions for distributing mobile apps and data to unique device configurations. 
• Enjoy a casual, friendly company culture with people that know how to work hard yet take time to have fun as a team. 

• MUST BE A US CITIZEN. 
• MUST BE ABLE TO OBTAIN A GOVERNMENT PROCESSED CLEARANCE. Fingerprint processing will occur onsite Day 1. 
• Must be able to travel to the GXM office in Arlington, VA as needed and to other areas of Virginia/Maryland for testing with the client (estimated to be quarterly). 
• BS/MS degree in Computer Science, Engineering, or related technical field. 
• 6+ years of professional experience in any modern Object Oriented language like C#, C++, or Java (or comparable experience with cross-platform mobile development tools such as .NET MAUI/Xamarin Forms). 
• 3+ years of professional experience with relational databases such as SQL Server or SQLite, with expertise in writing complex SQL queries. 
• Experience with agile/scrum software development methodology. 
• Excellent verbal and written communication skills. 
• Ability to understand architecture concepts for technical solutioning. 

Preferred 

• Extensive .NET/C# development experience. 
• 3+ years of proven mobile development experience. 
• Published one or more apps to app store(s). 
• Deep experience with mobile technology. 
• Experience with Microsoft .NET MAUI. 
• Experience with frameworks for developing mobile apps across multiple platforms (e.g., .NET MAUI/Xamarin, Flutter, React Native, Ionic, KMP, or Electron). 
• Experience with Blazor, HTML, CSS, and JavaScript. 
• Experience with PowerShell and Python scripting. 
• Experience with WPF application development. 
• Experience with writing C# unit tests (NUnit). 
• Experience with Continuous Integration/Development practices and technologies. 
• Experience with automated testing procedures and frameworks. 
• Experience/familiarity with practices and procedures for handling Controlled Unclassified Information (CUI). 
• Active Secret Clearance or above preferred. 

Equal Employment Opportunity / Legal Disclaimer 

GXM Technologies LLC is an Equal Opportunity Employer and participates in E-Verify to confirm employment eligibility. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy), sexual orientation, gender identity, national origin, age, disability, genetic information, veteran status, or any other legally protected status. GXM Technologies LLC provides reasonable accommodations in accordance with applicable law. This job description is not intended to be a complete list of duties and responsibilities, which may change at any time with or without notice. Employment is at-will where permitted by law, meaning either the employee or the Company may terminate employment at any time, with or without cause or notice, subject to applicable legal requirements.?