Hi, I'm Berfin

Backend Developer

Specialized in building robust APIs, database architecture, and scalable server-side applications.

Contact Me

About Me


Based in Belgrade, I am a Backend Developer with over six years of experience dedicated to building high-performance digital infrastructure. My expertise lies in the logic behind the screen—crafting clean, efficient code that ensures applications run smoothly, securely, and at scale.

I specialize in Python and FastAPI, leveraging advanced SQL strategies to design database architectures that are both robust and fast. For me, backend development isn't just about making things work; it's about creating reliable systems that can handle growth and complexity without manual intervention.

Whether you need to architect a new API from scratch or optimize an existing legacy system, I bring a problem-solving mindset and a commitment to technical excellence. I focus on delivering improved performance and stability, allowing you to focus on growing your business.

6+ Years
experience
50+ Completed
projects
25+ Clients
worked

Active Projects

Currently in progress

Coming Soon...

Big things are on the way. Stay tuned!

Skills

My technical level

Backend Development

More than 6 years

Python

90%

FastAPI / Flask

85%

SQL / Databases

80%

Docker

75%

Frontend Basics

Supportive implementation

HTML/CSS

80%

JavaScript

60%

Services

What I offer

API
Development

Database
Design

Server
Management

Specializations

My technical expertise

High-Performance APIs

Architecting scalable and async RESTful APIs using Python, FastAPI, and modern standards.

Database Architecture

Designing efficient SQL schemas, optimizing queries, and ensuring data integrity for complex systems.

Secure System Design

Implementing JWT authentication, OAuth2 flows, and security best practices for backend protection.

Contact Me

Get in touch

Call Me

+381 62 8511 722

Email

berfinzengin.wd@gmail.com

Location

Sukran Berfin Zengin PR BEOGRAD

Cika Ljubina 12/3 11102 Stari Grad Beograd
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