You will get a fast-delivered feature for your product

Ivan Z.Status: Offline
Ivan Z.

Let a pro handle the details

Buy Other Web Programming services from Ivan, priced and ready to go.
Ivan Z.Status: Offline
Ivan Z.

Let a pro handle the details

Buy Other Web Programming services from Ivan, priced and ready to go.

Project details

You will get a well-designed API/app/microservice cause I love my job and care about the result. I have more than 6 years of enterprise development of web API and apps, but microservices are my new passion. I prefer transparency in work and could discuss current progress or issues or some adjustments if needed at any time. I respect deadlines and pay attention to risks and blockers that highlight immediately and prepare a plan how to deal with them. If you're interested in all that I've described please contact me.
Web Programming Project
API Development, API Integration
Programming Languages
C#
Coding Expertise
Performance Optimization
What's included
Service Tiers Starter
$150
Standard
$600
Advanced
$3,000
Delivery Time 2 days 7 days 30 days
Number of Revisions
135
Source Code
-
Optional add-ons You can add these on the next page.
Fast Delivery
+$50 - $700
Documentation (+ 1 Day)
+$75
Ivan Z.Status: Offline

About Ivan

Ivan Z.Status: Offline
Senior .NET Architect | Distributed Systems & AI Integration
Belgrade, Serbia - 8:39 am local time
Most .NET backends don't fail because of bad developers - they fail because nobody stopped to ask whether the architecture could actually support what the product needed to become.
That's where I come in.
I'm a senior .NET engineer and software architecture consultant with enterprise experience, specializing in backend systems design, distributed architecture, and code review for teams that need to move fast without building themselves into a corner.
What I typically help clients with:

Architecture reviews - finding the structural problems before they become production incidents
Distributed systems design - microservices, event-driven architecture, CQRS, API design
Code review and technical due diligence - for teams, CTOs, and investors who need an honest picture
.NET modernization - moving legacy systems toward something maintainable and scalable

Increasingly, I also help engineering teams integrate AI into their existing .NET workflows - not as a gimmick, but as a practical layer that makes products smarter and teams more productive. This includes building AI-powered features via LLM APIs (including Claude and OpenAI), designing RAG pipelines, and connecting AI capabilities into production backends in a way that's actually maintainable.

I don't just write code and disappear. I bring the perspective of someone who has seen what happens when architecture decisions are made under pressure, and I help you make better ones before that pressure arrives.
If you're building something serious on .NET and want a senior technical voice in the room - let's talk.

Steps for completing your project

After purchasing the project, send requirements so Ivan can start the project.

Delivery time starts when Ivan receives requirements from you.

Ivan works on your project following the steps below.

Revisions may occur after the delivery date.

Scope and features analysis

Definition of scope and features, details discussion, definition of done.

Delivery plan presentation

Review of milestones and deadlines, feature priorities.

Review the work, release payment, and leave feedback to Ivan.