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

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.

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/EAD

Locaton: Local DMVS area only - Hybrid (1-2 days in Mclean office)

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 – Annual performance reviews, tuition assistance, and internal career growth opportunities to help you thrive.
• Financial – Generous 401(k) matches, life and disability insurance, and financial wellness tools to support your future.
• Recognition – Annual awards, service anniversaries, referral bonuses, and peer-to-peer shoutouts that spotlight your achievements.
• Wellness – Healthcare coverage, wellness programs, flu shots, and biometric screenings to support your health.

DMI values employees for their talents and contributions, and we take pride in helping our customers achieve their goals. Because when we live our values, we all win together.

***************** No Agencies Please *****************

Applicants selected may be subject to a government security investigation and must meet eligibility requirements for access to classified information. US citizenship may be required for some positions.