You will get fast and optimized backend API for website
Project details
You will get API for your website, which will be able to store the information and database and send the information in JSON format with the request.
I use C# and WEB-API for creating API, which allows me to use different frameworks provided by Microsoft.
API will be optimized, so you will receive a response very fast after the request.
Price and duration might be changed depending on the complexity of the requirements.
I use C# and WEB-API for creating API, which allows me to use different frameworks provided by Microsoft.
API will be optimized, so you will receive a response very fast after the request.
Price and duration might be changed depending on the complexity of the requirements.
Programming Languages
ASP.NET, C#Coding Expertise
Cross Browser & Device Compatibility, Performance OptimizationWhat's included $99
These options are included with the project scope.
$99
- Delivery Time 2 days
- Number of Revisions 0
- Content Upload
- Source Code
Frequently asked questions
About Andrii
Backend developer | ASP.Net, C#, SQL, API, Docker | 5+ years
Vinnytsya, Ukraine - 1:41 pm local time
I specialize in creating clean architectures, high-performance APIs, and robust database-driven systems that support business growth and deliver reliable results.
Industries I’ve worked with: ✦ Fintech & Payment Systems ✦ Telecom ✦ E-commerce ✦ SaaS Platforms ✦ Web & Tech Services
💚 CHECK MY OFFER: CUSTOM BACKEND DEVELOPMENT & ARCHITECTURE
GET A HIGH-PERFORMANCE BACKEND BUILT WITH OVER 5 YEARS OF ENTERPRISE EXPERIENCE
🏆 EXPERTISE IN SCALABLE BACKEND ENGINEERING
I build backend systems that are secure, optimized, and easy to maintain.
My experience across fintech, telephony, and enterprise-level services allows me to create APIs and backend logic that not only work flawlessly but also scale to meet real business needs.
Proven Experience: 5+ years in enterprise backend development.
Custom Solutions: Architectures tailored specifically to your product.
Performance Focus: Faster APIs, optimized queries, stable infrastructure.
When you work with me, you get:
✓ Backend Development from Scratch: Clean, scalable architecture for your web application.
✓ Support & Maintenance: Bug fixing, improvements, long-term stability.
✓ Refactoring & Upgrades: Modernizing legacy systems for better performance and reliability.
✓ Database Expertise: Structure redesign, migration, optimization of queries and indexing.
✓ 3rd-Party Integrations: Payment systems, external APIs, microservices, and more.
✓ Consultation & Guidance: Architecture planning, design patterns, best practices.
Who Can Benefit:
• Founders & Startups: Need a reliable backend for a new product.
• Growing Businesses: Want to optimize performance or scale infrastructure.
• Teams with Legacy Systems: Looking to refactor or migrate safely.
• Product Owners: Require new features, integrations, or architecture improvements.
• Tech Companies: Need API development, microservices, or backend extensions.
My Technical Background:
💥 .NET / C#
💥 ASP.NET Core (Web API / MVC)
💥 REST / GraphQL
💥 RabbitMQ
💥 gRPC
💥 Redis
💥 Entity Framework / ADO.NET
🔥 MSSQL / PostgreSQL
🔥 MongoDB
Why Clients Choose Me:
⭐️ Full-time availability — responsive communication, even on weekends.
⭐️ Experience across multiple domains: payment systems, telephony, e-commerce, backend services, APIs, and database-heavy projects.
⭐️ Clean & scalable code: built with industry-leading architectural patterns.
⭐️ Transparent workflow & on-time delivery — no surprises, only results.
🎁 BONUSES:
🎁 Free Backend Architecture Consultation: I’ll review your idea or existing system and provide expert recommendations.
🎁 Performance Checklist: A guide to help you maintain and scale your backend effectively.
🎁 30 Days Guarantee Support: Post-delivery assistance at no extra cost.
📞 Free Project Consultation: Tell me about your project — I’ll propose the best backend structure, tools, and development plan tailored to your needs.
➡️ Ready to upgrade your backend or build a powerful one from scratch?
📨 Send me a message — I’m here and ready to help.
Updated: 11/16/2025
Steps for completing your project
After purchasing the project, send requirements so Andrii can start the project.
Delivery time starts when Andrii receives requirements from you.
Andrii works on your project following the steps below.
Revisions may occur after the delivery date.
Discuss with clients subject area
We will discuss website functionality and information about your product area. After the discussion, I will create Entities and database architecture.
Development
I will create API architecture and implement all required requests