● Sebastian

Work

Things I've shipped.

A mix of solo builds, hackathons, and college development projects. Federal work isn't listed publicly — happy to walk through it in a call.

2025

Live

Crittr

Animal-care SPA built solo, end to end.

Single-page application with a Blazor WebAssembly frontend and ASP.NET Core API backend. Implements JWT authentication, REST endpoints, dependency injection, and an SRP-based service architecture. Currently exploring AI-powered features for enhanced UX.

  • Blazor WebAssembly
  • ASP.NET Core
  • JWT
  • TailwindCSS
  • EF Core

2025

Live

Swipe & Decide Cards

Real-time group decisions, built in 24 hours.

JacHacks 2025 entry. Users swipe on options, vote in real time, and an AI model summarizes the consensus. Owned backend logic, session management, and database operations.

  • .NET MVC
  • MongoDB
  • SignalR
  • JavaScript
  • OpenAI API

Winter 2025

HIAAA

Production-grade identity & authorization system.

Architected and built an Identity-Authentication-Authorization-Audit platform with app registration, RBAC, identity-provider integration, audit logging, CSV import, and user provisioning workflows. Heritage College development project.

  • .NET 8 MVC
  • EF Core
  • Razor
  • TailwindCSS
  • MS SQL