Senior .Net Engineer

About DMI

DMI is a leading provider of digital services and technology solutions, headquartered in Tysons Corner, VA. With a focus on end-to-end managed IT services, including managed mobility, cloud, cybersecurity, network operations, and application development, DMI supports public sector agencies and commercial enterprises around the globe. Recognized as a Top Workplace, DMI is committed to delivering secure, efficient, and cost-effective solutions that drive measurable results. Learn more at www.dminc.com

About the Opportunity

DMI, LLC is seeking a full time Senior .NET Engineer to support a Federal Government customer in the DC metro area. This Senior .NET Engineer will provide support for an enterprise web-based system.

 

Duties and Responsibilities:

• Build high-quality, scalable, and predictable end-to-end web applications on the Microsoft technology stack and maintain them.
• Ability to develop fluently using ASP.NET, .Net Core, C#, Web API, MVC, MVP, SQL Server, jQuery, JavaScript, JSON, and entity framework.
• Experience using TFS, visual studio IDE, and GIT repository.
• Experience in Product Life Cycle Management, and agile methodologies: Scrum, Kanban, etc.
• Collaborate with internal teams to produce software design and architecture.
• Work with the Architecture team to design and implement cloud IaaS, SaaS, and PaaS solutions.
• Worked in hybrid server environments (on-prem & cloud).
• Experience in deploying and managing storage, VMs, virtual networks, and identities.
• Develop documentation throughout the software development life cycle (SDLC)
• Experience in resolving application performance issues by analyzing the root cause, impact analysis, and applying unit-tested code fixes.
• Make regular modifications to existing software for error correction, adaptation to new software, and to improve overall function and performance.
• Improve web application design by employing the industry's most relevant best practices and SOLID design principles.

 

 

Qualifications

Education and Years of Experience:

• At least Eight (8) years of relevant experience
• Bachelor's degree from an accredited college or university with a major in Computer Science, Information Systems, Cybersecurity, or related discipline.

 Required Skills/Certifications:

• Hands-on experience with .NET Core 2.0, ASP.NET Core APIs, C#, MVP, MVC
• Good understanding of Cloud Native and Microservices fundamentals.
• Knowledge and understanding of the Microsoft Azure stack including (at a minimum) PaaS, IaaS, Storage, SQL, NSGs, VNETs, Availability Zones, Azure Traffic Manager, and Azure Active Directory.
• 3+ years of extensive experience with the ASP.NET framework, ASP.NET Core, and design / architectural patterns (e.g., MVC).

• JavaScript frameworks (i.e. AngularJS)
• A demonstrated understanding of Service-Oriented Architectures (SOA) including RESTful Service frameworks (Web API).
• Advanced problem-solving and troubleshooting skills.
• Operations support experience required.
• Experience in MS SQL Server database development
• Experience designing and implementing web services.
• Experience with AngularJS, Bootstrap, HTML5, and CSS.
• Microsoft certifications in MVC .Net and Azure preferred.
• Thinks independently and demonstrates exceptional written and oral communications skills.

 Additional Requirement(s):

• Minimum 3 years in US
• Ability to meet government security screening requirements are required for this role.

 Min. Citizenship Status Required: US Citizen/GC/EADLocaton: Local DMVS area only - Hybrid (1-2 days in Mclean office)

Working at DMI

DMI is a diverse, prosperous, and rewarding place to work. Our culture is shaped by five core values that guide how we work, grow, and succeed together:

 

• Do What’s Right – We lead with honesty and integrity.
• Own the Outcome – We take responsibility and deliver.
• Deliver for Our Customers – We are relentless about delivering value.
• Think Bold, Act Smart – We innovate with purpose.
• Win Together – We collaborate and celebrate our success.

These values aren’t just ideals—they show up in how we support every part of your well-being:

 

• Convenience/Concierge – Virtual health visits, commuter perks, pet insurance, and entertainment discounts that make life easier.
• Development – An