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You will get ASP.NET 5/6/7/8 or ASP.NET CORE 3.1 API

5.0

Let a pro handle the details

Buy Web Application Programming services from Md Arif, priced and ready to go.
5.0

Let a pro handle the details

Buy Web Application Programming services from Md Arif, priced and ready to go.

Project details

You will get an professional backend solution developed in .net core, with OpenAPI (Swagger Documentation).

I will implement JWT, Oauth2 token-based authentication in the API. The project will be following Clean Architecture with MSSQL Server, Oracle, SQLLite, PostgreSQL, or NoSQL.
Programming Languages
ASP.NET, C#
Coding Expertise
Cross Browser & Device Compatibility, Performance Optimization, Security
What's included
Service Tiers Starter
$200
Standard
$450
Advanced
$900
Delivery Time 3 days 10 days 15 days
Number of Revisions
135
Design Customization
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Content Upload
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Responsive Design
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Source Code

Frequently asked questions

5.0
4 reviews
100% Complete
1% Complete
(0)
1% Complete
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1% Complete
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1% Complete
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OB

Ousmanou B.
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ML

Maksym L.
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Mobile application developer Android

AM

Aaron M.
5.00
Apr 6, 2021
Asp.net developer needed to fix bugs Arif is very skilled and efficient developer, honesty and straightforward communication is his top quality's. The work was done very professionally to our full satisfaction with great cooperation.

AM

Aaron M.
5.00
Apr 6, 2021
Fullstack Developer to build web portal - C#, REST API, SQL Server, Azure Arif showed a lot of enthusiasm during the project. He is a Full Stack Developer and asp.net core, mssql Expert. He is also a good solution architect. He was extremely responsive to my messages and requests. I was very satisfied with the output of the project. Perfect work is done. Will be recruiting again and highly recommended !!
Md Arif A.Status: Offline

About Md Arif

Md Arif A.Status: Offline
Senior .NET Backend Architect | ERP, FinTech & Scalable Systems
5.0  (4 reviews)
Mirpur, Bangladesh - 7:32 pm local time
I help businesses design, fix, and scale complex backend systems for ERP, FinTech, and SaaS applications where performance, data accuracy, and reliability are critical.

With 13+ years of experience, I’ve built and maintained production systems handling financial transactions, loan management, and business operations — including microfinance and enterprise ERP platforms used in real-world environments.

I specialize in taking over existing or incomplete systems, identifying architectural issues, and delivering stable, scalable solutions that hold up under real usage — not just in development.

📊 Impact Highlights
- Designed ERP systems covering finance, inventory, HR, and reporting modules
- Built financial systems ensuring transaction accuracy and audit compliance
- Optimized database queries and backend APIs to improve performance and scalability
- Led backend architecture for modular and microservices-based systems

🧩 When Clients Hire Me
Clients usually come to me when:
- An existing system is incomplete or difficult to maintain
- Performance issues are affecting business operations
- They need scalable backend architecture before development
- Technical debt is slowing down development and needs cleanup

🚀 What I Specialize In
- FinTech & Microfinance systems (loans, deposits, accounting, transactions)
- ERP systems (HR, inventory, finance, reporting)
- Scalable backend & microservices architecture
- Legacy modernization (.NET Framework → .NET Core / .NET 8+)
- High-performance APIs & backend optimization
- Multi-tenant SaaS systems

🧠 Core Strengths
- System Architecture & Solution Design
- Clean Architecture, CQRS, Domain-Driven Design
- SQL Server & PostgreSQL optimization
- Secure API design (RBAC, authentication, authorization)
- Performance tuning and scalability engineering

💼 What I Deliver
- Scalable and maintainable backend systems
- Secure API ecosystems
- Financial systems with strong data integrity
- Optimized database and query performance
- Clean, modular, future-ready architecture

🎯 Ideal Clients
- SaaS platforms needing scalability
- Financial or transaction-heavy systems
- ERP or business automation platforms
- Backend modernization projects

If you need someone who can take ownership, make the right technical decisions, and deliver a system that works reliably in production — I can help.

Steps for completing your project

After purchasing the project, send requirements so Md Arif can start the project.

Delivery time starts when Md Arif receives requirements from you.

Md Arif works on your project following the steps below.

Revisions may occur after the delivery date.

Gather Requirements

Requirements will be analyzed in this phase.

Create Proof of Concept

Create a proof of your concept

Review the work, release payment, and leave feedback to Md Arif.