Hi, I'm

Crazyheart

Backend Web Developer

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Summary

Performance-driven Backend Developer specializing in the .NET ecosystem. Focused on translating complex business rules into scalable, maintainable, and reliable software. Passionate about delivering high-quality solutions by evaluating architectural trade-offs, ensuring strong system design, and building resilient backends through well-crafted code that solves practical problems.

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Technical Skills

Core Backend

C#.NET 10ASP.NET CoreEntity Framework CorePostgreSQLSQL Server

Architecture & Patterns

Clean ArchitectureN-Tier ArchitectureDomain-Driven DesignCQRSMediatRREST APIsSOLID

Testing & Reliability

Unit TestingxUnitMoqFluentAssertionsTimeAbstractions

Frontend & Tooling

TypeScriptReactAstroTailwind CSSDockerGitHub Actions

Projects

ClinicFlow - Clinical Management System

Jan 2026 - Present

Architected a multi-role Clinical Management System enforcing strict Clean Architecture and Domain-Driven Design (DDD) principles.

  • Implemented robust CQRS via MediatR and Domain Event Dispatching, creating a highly decoupled and reactive architecture.
  • Modeled role-aware domain logic and a strike-based penalty system utilizing immutable Record Types and Value Objects for time-based constraints.
  • Built a comprehensive unit test suite (xUnit, Moq, FluentValidation) covering critical medical business rules.
C#.NET 10PostgreSQLClean ArchitectureDDDCQRSxUnit

ServiceHub - Service Provision Platform

Nov 2025 - Jan 2026

Designed a full-stack production-ready platform with a .NET RESTful API and a server-side rendered frontend using Astro and React 19.

  • Engineered backend under a Clean N-Tier Architecture, implementing Repository Pattern, DTOs, AutoMapper, and global middleware for exception handling and health monitoring.
  • Integrated a hybrid authentication system combining JWT with Refresh Token Rotation and Google OAuth 2.0, enforcing strict identity access policies.
  • Containerized the full infrastructure using Docker with multi-stage builds and Docker Compose, ensuring consistent deployments across all services.
C#.NET 9Entity Framework CoreASP.NET Core IdentityPostgreSQLDockerAstroReact 19Tailwind CSS