Full-stack web app and SaaS: React / Vue + C# (.NET Core) or Node.js backend

I develop your custom web application or SaaS product end to end, with frontend, backend and database, from requirements analysis to going live.

What's included:
• Requirements analysis, screen list, data model and architecture
• Frontend: React or Vue 3, TypeScript
• Backend: REST API with C# (.NET Core) or Node.js (Express), a microservice structure if needed
• Database: PostgreSQL or MSSQL, migrations and permission model
• Authentication, role-based access control (RBAC), 2FA
• Third-party integrations (payment, SMS, CRM, email)
• Real-time updates (SignalR / WebSocket), if needed
• Docker, CI/CD and production environment setup
• Source code, documentation and handover

Experience: 12 years. A B2B platform carrying about 4 billion SMS per year with .NET Core microservices, two production applications for a cooperative with 639 members on PostgreSQL and a serverless infrastructure, and admin panels of about 90 screens for a payment institution.

Duration and price: Projects can take from 2 months to 2 years depending on scope. My daily rate is 15,000-20,000 TL. The starting price is for a first version of about 40 working days. We put the scope in writing together and settle the total duration and price.

How I work: I do AI-assisted development with Claude Code. All code the agent writes goes through type checking, linting and code review. At the end of each stage you see and approve the working version.

Stages of the work

Each stage is approved when delivered, and that stage's share is paid directly to the expert.

  1. Analysis, architecture and data model · %15 — Screen list, data model, API design and a project plan document
  2. Backend and database · %30 — API endpoints, database, authentication and authorization in the test environment
  3. Frontend and integrations · %30 — Interface screens, third-party integrations, an end-to-end working version
  4. Testing, fixes and going live · %25 — Feedback fixes, production environment, source code, documentation and handover