Asp.net​/Umbraco Developer

WHAT WE’RE LOOKING FOR:

We’re looking for a developer with strong, practical experience in ASP.NET who can build modern, scalable web applications. The ideal candidate has hands-on experience across both legacy ASP.NET MVC/.NET Framework environments and modern ASP.NET Core, and is comfortable working inside a CMS-driven architecture. You excel at translating requirements into thoughtful technical solutions, communicate clearly with cross-functional partners, and bring a consistent focus on quality, maintainability, and continuous improvement.

Above all, you take pride in delivering reliable ASP.NET applications that solve real problems and elevate the digital experiences we create.

Ammunition is a full-funnel advertising agency headquartered in Atlanta, GA, known for building brands that move markets. From strategic planning and Emmy-winning creative to media, CRM, and digital transformation, Ammunition delivers high-performance marketing for brands with complex paths to purchase. The agency is privately held and a proud member of Worldwide Partners, Inc., and the American Association of Advertising Agencies (4A’s).

RESPONSIBILITIES:

• Partner with the Development team, CTO, and Project Managers to conceptualize and implement sophisticated software solutions tailored to client needs.
• Serve as Ammunition’s subject-matter expert for the Microsoft .NET ecosystem, providing technical authority on architecture, tooling, and implementation.
• Design scalable, secure, and efficient client-side and server-side architectures using ASP.NET Core, C#, and modern development frameworks.
• Architect, build, and maintain robust relational databases (SQL Server, Azure SQL) and data models that support both client and internal initiatives.
• Engineer efficient, well-documented RESTful APIs and services for integrations with enterprise systems and third-party platforms.
• Evaluate and recommend .NET CMS platforms (e.g., Umbraco, Sitefinity, Kentico) and contribute to establishing reusable components and patterns for future projects.

• Maintain, troubleshoot, and improve existing Umbraco sites running on legacy .NET Framework/IIS.
• Extend Razor templates, uSkinned components, and CMS-driven front-end experiences.
• Implement performance, SEO, and accessibility improvements within the current architecture.
• Execute testing across unit, integration, regression, and performance layers.
• Diagnose and optimize .NET applications for speed, security, and maintainability.
• Contribute to CI/CD pipelines, Dev Ops workflows, cloud deployments, monitoring, and logging.
• Collaborate with designers, strategists, and project managers to translate requirements into technical solutions.
• Write documentation and support knowledge-sharing within the team.

QUALIFICATIONS:

• You have 5+ years as a .NET or Full Stack Developer in a fast-paced environment.
• You are proficient with both legacy ASP.NET MVC /.NET Framework and modern ASP.NET Core.
• You have professional experience building and maintaining Umbraco sites (v8 or v9+).
• You’re experienced with SQL Server, Azure SQL, and ORMs such as Entity Framework or Dapper.
• You are able to integrate APIs with systems such as Dynamics, Salesforce, or Hub Spot.
• You have experience with IIS deployments and Windows-based hosting environments.
• You have working knowledge of accessibility standards, responsive design, and SEO principles.
• You have experience with cloud hosting (Azure preferred), CI/CD pipelines, containerization, and monitoring.
• You have strong problem-solving, communication, and documentation skills.
• You are proactive, organized, and committed to continuous improvement.