Sr .Net Developer (ASP.Net Core MVC)

Lumen Solutions Group Inc.•Washington, DC

About The Position

We are seeking a skilled Sr. .Net Developer with a strong focus on frontend development using ASP.NET Core MVC. The role involves designing, developing, and maintaining user interfaces, enhancing existing web applications, and collaborating with cross-functional teams. While the primary focus is frontend, limited backend support related to MVC controllers and integration points will be required. The ideal candidate will have a solid understanding of .NET/C# and frontend web technologies, experience with cloud environments, and proficiency in Git and CI/CD tools within an Agile/Scrum framework.

Requirements

Bachelor of Science degree in Computer Science, Engineering, or a related field from an accredited institution, or equivalent professional experience.
8+ years of experience developing applications using .NET / C#, with a strong emphasis on frontend development using ASP.NET Core MVC.
Demonstrated hands‐on experience with ASP.NET Core MVC, including Razor syntax, controllers, views, and model binding.
Strong proficiency in HTML, CSS, JavaScript, and frontend web development best practices.
Experience integrating frontend MVC applications with RESTful APIs.
Working knowledge of ASP.NET Core backend concepts sufficient to understand and support frontend integration.
Experience deploying and supporting web applications in cloud environments (AWS and/or Azure).
Proficiency with Git and CI/CD tools such as Azure DevOps, GitHub, Jenkins, or similar, within an Agile/Scrum environment.
Strong analytical, troubleshooting, and communication skills.
Must have own equipment (Laptop, monitor, etc.).

Responsibilities

Design, develop, and maintain frontend user interfaces using ASP.NET Core MVC, including Razor Views, layouts, partial views, and view components.
Enhance and support existing web applications with emphasis on UI behavior, usability, performance, responsiveness, and maintainability.
Implement frontend logic using HTML, CSS, JavaScript, and MVC patterns to deliver intuitive and consistent user experiences.
Integrate frontend components with existing backend APIs and services, ensuring accurate data rendering and efficient client‐server interaction.
Collaborate closely with backend developers and solution architects to ensure frontend implementation aligns with established system architecture.
Translate business and product requirements into effective and scalable MVC‐based frontend solutions.
Perform code reviews and ensure adherence to coding standards and best practices.
Identify and remediate frontend performance, security, and accessibility issues.
Participate in Agile ceremonies and work collaboratively with Product Owners and cross‐functional teams.
Provide limited backend support as needed, primarily related to MVC controllers, model binding, and integration points rather than building core backend services.