Open to opportunities

Fausto Sosa

@faustososa

Full Stack Developer building secure ASP.NET Core and React apps with AI integrations and production support experience.

Ireland

Message

What I'm looking for

I’m looking for a role where I can build and maintain secure ASP.NET Core/React products, integrate AI features, and provide reliable L1/L2 support—while owning REST APIs, CI/CD, and continuous delivery improvements.

I’m a Full Stack Developer focused on building RESTful APIs and modern web apps with ASP.NET Core and React/TypeScript. I design solutions with Entity Framework Core, layered architecture, and strong authentication/authorization using JWT and RBAC.

I’ve shipped production applications with AI integration—using Claude API with tool use, Semantic Kernel with subagents, and RAG pipelines. My deployments span Azure App Service and Vercel, supported by CI/CD via GitHub Actions and well-documented APIs.

I also bring real-world L1/L2 application support experience, which makes dev + support responsibilities a natural fit. I enjoy owning reliability end-to-end—debugging, escalating correctly, and continuously improving user-facing features and developer workflows.

Experience

Work history, roles, and key accomplishments

IT Support Technician

Grupo Orono

Jun 2022 - Oct 2023 (1 year 4 months)

Provided L1/L2 technical support for 100+ healthcare users, diagnosing hardware/software issues, managing escalations, and prioritising critical incidents. Administered Active Directory, group policies, user provisioning, VPN access, and virtual machines, and documented recurring issues in a knowledge base to speed up resolution.

L1 L2 Technical Support Troubleshooting Active Directory Group Policy User Provisioning VPN Virtualization Incident Escalation Knowledge Base

Education

Degrees, certifications, and relevant coursework

Universidad Abierta Interamericana

Higher Diploma in Programming, Programming

2023 -

Higher Diploma in Programming (NFQ Level 6–7), in progress since 2023 at Universidad Abierta Interamericana. Coursework includes ASP.NET Core Web APIs & MVC.