.NET & ASP.NET Core
Backend services, MVC applications, APIs, and maintainable application foundations built around the Microsoft stack.
Senior .NET / Sitefinity Developer - Azure AI Engineer - Systems Builder
Full-Stack .NET Developer / AI Engineer
I build .NET, CMS, automation, and AI-powered systems that solve real business problems.
Senior .NET and Sitefinity Developer with experience building enterprise CMS solutions, internal business systems, automation workflows, and practical AI-assisted tools.
- 13+ years
- Web and business application development
- Certified
- Azure AI Engineer Associate and Sitefinity Developer
- Focus
- Maintainable systems, CMS platforms, automation, and AI tooling
Yasser García
Senior .NET / Sitefinity Developer
About
A practical engineer for systems that need to work beyond the demo.
I am a software developer with 13+ years of experience in web development and business applications. My background includes ASP.NET, C#, ASP.NET Core, MVC, Sitefinity CMS, frontend development, and database-backed systems.
I build efficient, visually polished, maintainable solutions for real business needs, with recent focus on AI-assisted engineering, Azure AI, audit tooling, automation, and internal systems.
My work is guided by a simple standard: useful systems should be clean, maintainable, and aligned with how a business actually operates.
- Enterprise CMS implementation and customization
- Business applications, dashboards, and reporting flows
- AI-assisted audit tooling and automation workflows
- Backend architecture with practical frontend delivery
Core Expertise
Focused capabilities for modern business platforms.
Sitefinity CMS Development
Enterprise CMS implementation, customization, integrations, content models, and Sitefinity 14 development workflows.
Azure AI & OpenAI Integrations
Practical AI-assisted tools, summaries, search workflows, and Azure AI services designed for useful outcomes.
Business Systems & Dashboards
Operational systems for sales, inventory, reporting, internal visibility, and administrative workflows.
Automation & Internal Tools
Workflow automation and internal utilities that reduce manual work and improve daily execution.
SQL Server, EF Core & Data Modeling
Relational data design, EF Core implementation, reporting queries, and database-backed application behavior.
Frontend UI Development
Responsive interfaces using HTML, CSS, JavaScript, Bootstrap, Angular, Vue, and polished component styling.
Docker & Deployment Workflows
Deployment-ready application packaging, Docker-based workflows, Coolify, Azure, and Google Cloud experience.
Selected Projects
Systems work across audits, CMS intelligence, inventory, and operations.
Case study
Audit Studio
An audit platform for scanning websites, detecting technologies, analyzing Sitefinity implementations, generating technical and executive reports, and using AI to summarize risks, recommendations, and modernization opportunities.
Case study
AI-Powered Code Audits
A reusable Claude Skill that transforms web project audits into a structured, evidence-based AI workflow, helping developers review security, architecture, configuration, frontend quality, and maintainability with clearer priorities and actionable reports.
Case study coming soon
La Reynita Store System
A business management system for sales, purchases, inventory, product batches, kardex, customers, suppliers, reports, and administrative operations.
Case study coming soon
Pharmacy Management System
A practical pharmacy operations MVP focused on products, inventory, purchases, sales, suppliers, reporting, dashboards, and administrative workflows.
Case study coming soon
Dboza / Personal Systems Work
A personal software initiative used to explore architecture, dashboards, automation, deployment workflows, and business-focused internal tooling.
Certifications
Credentials across Azure AI, Sitefinity, and Microsoft web development.
Microsoft Certified: Azure AI Engineer Associate
Credential focused on designing and implementing Azure AI solutions, including Azure AI services, Azure AI Search, and Azure OpenAI.
Certified Sitefinity Developer: Sitefinity Foundations
Certified Sitefinity Developer with foundations in Sitefinity 14 and enterprise CMS implementation.
Certified Sitefinity Developer: Sitefinity ASP.NET Core Foundations
Certified Sitefinity Developer with ASP.NET Core renderer foundations for Sitefinity 14.
Microsoft Certified: Programming in HTML5 with JavaScript and CSS3
Frontend credential covering browser-based development with HTML, CSS, and JavaScript.
Microsoft Certified: Developing ASP.NET MVC Web Applications
Microsoft web development credential focused on ASP.NET MVC application delivery.
Microsoft Certified: MCSA: Web Applications
Microsoft certification covering web application development in the .NET ecosystem.
Experience
Long-term delivery across CMS platforms, web applications, and internal systems.
June 2022 - Present
VISUS LLC - .NET & Sitefinity Developer
- Sitefinity CMS development and customization
- ASP.NET / .NET Core solutions
- CMS integrations, performance improvements, and business-focused web applications
- AI-assisted tooling and audit systems
September 2013 - June 2022
OOQIA S.A. - Senior Web Developer
- Web application development
- Frontend and backend implementation
- AngularJS, Angular, VueJS, JavaScript, ASP.NET, and database-backed systems
- Digital solutions and UI implementation
2012 - 2013
Nicaraguan Technology University - IT Specialist
- Technical support
- Systems maintenance
- Software and hardware support
- Security and network assistance
Education
Formal engineering education supported by practical technical training.
Computer Engineer
Universidad Politécnica de Nicaragua
Systems Engineering
Universidad Tecnológica Nicaragüense
Technical Courses
MVC .NET Web Development, SQL Server DBA, Technical Support, Network Technical Support, Graphic Design, and Software Development.
Working Style
Useful beyond the demo.
I enjoy building systems that are useful beyond the demo: clean code, maintainable architecture, practical automation, and interfaces that help people work better.
- Business-first thinking
- Clean and maintainable implementation
- Strong debugging and problem-solving
- Practical use of AI, not AI for show
- Continuous learning mindset
Contact
Let's connect.
For CMS platforms, .NET systems, automation workflows, or practical AI tooling, reach out directly.