You will get a secure, scalable .NET Web API for your application.
Project details
I build secure, scalable, and "Enterprise-Grade" Web APIs using the latest .NET technology (C#). whether you are a startup needing an MVP or a business needing to modernize legacy code, I deliver backends that are ready for production.
Why choose this Project?
• Security First: I implement JWT Authentication and Role-Based Access Control (RBAC) so your data stays safe.
• Frontend Friendly: You get a full Swagger (OpenAPI) dashboard. Your frontend team can test every endpoint in the browser without reading a line of backend code.
• Clean Architecture: I use industry-standard patterns (Dependency Injection, Repository Pattern) so your code is easy to maintain and upgrade later.
The "Overnight" Advantage: Based in Japan (JST), I work while the US sleeps. You assign a task in the evening and wake up to completed deliverables.
The Stack:
C# (.NET 6 / 7 / 8)
Entity Framework Core (SQL Server / PostgreSQL)
RESTful Architecture
You define the data; I build the engine to process it. Let's ship something solid.
Why choose this Project?
• Security First: I implement JWT Authentication and Role-Based Access Control (RBAC) so your data stays safe.
• Frontend Friendly: You get a full Swagger (OpenAPI) dashboard. Your frontend team can test every endpoint in the browser without reading a line of backend code.
• Clean Architecture: I use industry-standard patterns (Dependency Injection, Repository Pattern) so your code is easy to maintain and upgrade later.
The "Overnight" Advantage: Based in Japan (JST), I work while the US sleeps. You assign a task in the evening and wake up to completed deliverables.
The Stack:
C# (.NET 6 / 7 / 8)
Entity Framework Core (SQL Server / PostgreSQL)
RESTful Architecture
You define the data; I build the engine to process it. Let's ship something solid.
Programming Languages
Python, TypeScript, C#Coding Expertise
Performance Optimization, Security, DesignWhat's included
| Service Tiers |
Starter
$100
|
Standard
$350
|
Advanced
$750
|
|---|---|---|---|
| Delivery Time | 2 days | 4 days | 7 days |
Number of Revisions | 2 | 2 | 2 |
Number of Pages | 2 | 5 | 10 |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code |
Optional add-ons
You can add these on the next page.
Azure/AWS Deployment Setup
(+ 1 Day)
+$100
Unit Testing
(+ 2 Days)
+$100
ERD & DB Schema Design
+$100Frequently asked questions
About Ramon
Full-Stack Engineer (.NET/C#, React, Python) | Systems & Automation
Kohoku, Japan - 2:32 am local time
I build production-ready .NET systems: APIs, background workers, and integrations that are deployable, observable, and maintainable.
How I work (low overhead)
- You define the business goal (speed, reliability, features).
- I design + implement the system, including edge cases and failure paths.
- You get a shipped result: clean code, docs, and a deployment you can run.
What you can expect
- Daily progress updates (Upwork + short Loom walkthroughs when useful)
- Clear milestones and scope control
- Reliability patterns: idempotency, retries, queues, structured logging, tests where it matters
Stack
.NET 8 / C#, SQL Server/Postgres, Redis, Docker, Azure/AWS
Frontend when needed: React + TypeScript
Time zone advantage (Japan, JST)
US/EU clients get a natural 24-hour cadence: I ship while you sleep, you review in your morning, and we keep momentum without delays.
Best-fit projects
- MVPs that won’t require a rewrite
- Legacy .NET cleanup and modernization (modularization, safer deployments, targeted extractions)
- High-integrity integrations (payments, internal tools, data sync, AI/LLM workflows)
Available for targeted builds or longer-term engineering support.
Steps for completing your project
After purchasing the project, send requirements so Ramon can start the project.
Delivery time starts when Ramon receives requirements from you.
Ramon works on your project following the steps below.
Revisions may occur after the delivery date.
Initial Scope Alignment & Architecture Design
We review your requirements. I finalize the database schema and endpoint structure, ensuring we agree on the deliverables before coding begins.
Development & Business Logic Implementation
I build the core API using clean C#/.NET architecture. I implement secure JWT authentication, database connections (EF Core), and the main business logic.