Hello, I'm Onur!

Architecting
Cross-Platform
Mobile Ecosystems

I am a Senior Full-Stack Architect with 15+ years of professional experience. I specialize in building high-performance, cross-platform mobile apps with React Native and Expo — backed by scalable microservices, hardware-integrated IoT solutions, and modern SaaS platforms, all grounded in maintainable clean architecture.

My Projects Get in Touch
15+
Years of Experience
100+
Projects Completed
20K+
Working Hours
30+
Clients Served
About

Senior Full-Stack Architect

Based in İzmir, I engineer production-ready platforms that span web, mobile, and hardware-integrated environments. My core strength lies in backend architecture and end-to-end full-stack development, building resilient, scalable systems with Laravel, NestJS, Next.js, React, and React Native.

From complex RFID-driven logistics software to high-traffic SaaS infrastructures, I apply Domain-Driven Design (DDD) and clean-code principles to keep every system scalable, maintainable, and built to last.

Location
İzmir, Türkiye
Experience
15+ Years
Education
Ege University
Freelance
Available ✓

Tech Stack

Backend
Laravel (PHP) NestJS (TypeScript) REST APIs
Frontend
Next.js React TypeScript
Mobile
React Native Expo
Databases
PostgreSQL Redis
DevOps & Infrastructure
Docker Nginx Linux CI/CD GitHub Actions
Realtime & Messaging
WebSockets RabbitMQ Redis Queues Event-Driven Architecture
Testing
Pest PHPUnit
Architecture & Practices
Domain-Driven Design (DDD) Clean Architecture SOLID
Onur Şevik — Senior Software Architect
Available for Projects
Tarlamapp
2026 – Present
Founder
Founded an AI-driven, multi-tenant AgriTech SaaS for farmers, advisors and cooperatives. Leading product and architecture end-to-end — AI leaf diagnosis, GDD-based growth tracking and WhatsApp alerts on a framework-independent Clean Architecture domain. Backed by a TÜBİTAK R&D programme.
Think Smart Media
2026 – Present
CTO
As CTO, I set the technical vision and lead the engineering team, architecting scalable web, mobile and SaaS products. Establishing engineering standards, CI/CD pipelines and Clean Architecture practices across the company's product portfolio.
Takipsan A.Ş.
2025 – 2026
Senior Software Architect
RFID-based traceability solutions and IoT product architectures. Nebim V3 and MS-Shop ERP integrations, Virtual POS systems.
Grafiket
2015 – 2025
Senior Software Developer
E-commerce platforms, municipal projects, high-performance and scalable mobile applications with React Native.
Corpus AD
2012 – 2015
Software Developer
E-commerce, Facebook applications, and corporate web project development.

Core Expertise

Mobile & IoT Solutions

Building high-performance, cross-platform mobile apps with React Native & Expo. Direct hardware communication via TCP/IP Sockets, with seamless RFID and device integrations.

React Native Expo Redux TanStack TCP/IP Sockets WebSockets Reverb Firebase RFID

Backend & Systems Architecture

Designing high-availability Distributed Systems and Microservices. Specialized in Event-Driven patterns, secure payment gateways, and scalable database design.

Microservices Domain-Driven Design Clean & Layered Architecture Scalable Database Design RabbitMQ Redis Docker

Modern Web & SaaS Ecosystems

Building high-performance SPA & SSR applications. Expert in bridging the gap between robust backend logic and fluid user interfaces using modern stacks.

React NestJS Next.js Inertia.js TypeScript Laravel PostgreSQL MongoDB Meilisearch ElasticSearch Tailwind
React Native •  Expo •  Redux •  TanStack Query •  MMKV •  Laravel •  Symfony •  NestJS •  React •  Next.js •  PostgreSQL •  MySQL •  MongoDB •  Redis •  Docker •  Meilisearch •  ElasticSearch •  RabbitMQ •  Feature Testing •  Unit Testing •  RFID SDK •  TCP/IP •  Payment APIs •  CI/CD •  GIT •  React Native •  Expo •  Redux •  TanStack Query •  MMKV •  Laravel •  Symfony •  NestJS •  React •  Next.js •  PostgreSQL •  MySQL •  MongoDB •  Redis •  Docker •  Meilisearch •  ElasticSearch •  RabbitMQ •  Feature Testing •  Unit Testing •  RFID SDK •  TCP/IP •  Payment APIs •  CI/CD •  GIT • 
Portfolio

Featured Projects

A diverse range of projects spanning enterprise solutions, startups, municipal platforms, and mobile applications.

TÜBİTAK-Backed
FEATURED
+RESTful API
TARLAMAPP
SaaS · AI-Driven AgriTech
Tarlamapp
Multi-tenant agritech SaaS for farmers, advisors and cooperatives. AI leaf diagnosis, GDD-based growth tracking and WhatsApp alerts — built on a framework-independent Clean Architecture domain, backed by 655 tests and machine-enforced layer boundaries. Supported by a TÜBİTAK R&D programme.
Clean Architecture Domain Driven Design React Native Expo React Laravel PostgreSQL RabbitMQ Meilisearch Redis Reverb AI Integration WhatsApp Integration MKKV TanStack Query Offline-First Multi-Tenancy Docker
+RESTful API
RFID · ERP
+RESTful API
SaaS - IoT
Kilit Grup - RFID & Nebim ERP
Hardware-level communicating traceability software with RFID tag reading/printing capabilities.
RFID SDK Laravel MySQL RabbitMQ Redis Nebim V3 Docker
Irish Government Backed
+RESTful API
ONEBILL
+RESTful API
Visit Project
SaaS - FinTech / CRM
OneBill (Ireland)
Government-backed automated invoice tracking and profit optimization web platform based in Ireland.
Laravel MySQL RabbitMQ Redis ElasticSearch JavaScript CSS
Visit Project
+RESTful API
GONN
+RESTful API
SaaS - Mobile App
Gonn Community Mobile App
Community management and engagement-focused mobile application built with React Native.
React Native Expo TanStack Laravel PostgreSQL Redis Docker Unit · Feature Testing
+RESTful API
HEYGUIDE
+RESTful API
SaaS - Mobile App
HeyGuide Mobile App
Mobile platform developed with React Native for the tourism and tour guiding industry.
React Native Expo Redux Laravel PostgreSQL Redis Docker Unit · Feature Testing
+RESTful API
İMR APP
+RESTful API
Visit Project
Mobile App
İzmir Mekan Rehberi Mobile App
A comprehensive venue guide and discovery platform for İzmir, offering curated venue listings and seamless reservation capabilities — built with React Native.
React Native Expo Redux Laravel MySQL Redis Docker Unit · Feature Testing
+RESTful API
EXTRACIM · APP
+RESTful API
Mobile App
Extracım App
A mobile application for the Extracım platform, providing users with a seamless experience for managing and tracking their activities.
React Native Expo TanStack Query Laravel PostgreSQL Redis Meilisearch Docker Unit · Feature Testing
+RESTful API
İZMİR · BB
+RESTful API
Municipality
İzmir Metropolitan Municipality - Hikayematik
Statistics and data management platform featuring Socket Programming and custom API integrations for kiosk management.
Laravel MySQL Socket JavaScript
+RESTful API
İST · BB
+RESTful API
Municipality
Istanbul Metropolitan Municipality
QR code-based information page management system integrated with Galata Tower kiosks.
Laravel MySQL QR Code JavaScript
+RESTful API
AX · MIAMI
+RESTful API
Web App
ArtXSpace Miami
Kiosk-compatible online ticket sales and tracking system for the Miami experience center.
Laravel MySQL RabbitMQ Redis JavaScript CSS
+RESTful API
YAKA.LA
+RESTful API
Visit Project
SaaS
Yaka.la
High-performance web platform built on Symfony and deployed with Docker.
Symfony PostgreSQL RabbitMQ Redis Docker
+RESTful API
212
+RESTful API
SaaS
212 Stüdyo
Enterprise platform built on Laravel and PostgreSQL with Redis caching support.
Laravel PostgreSQL RabbitMQ Redis
+RESTful API
EBSIS
+RESTful API
SaaS
Ebsis - Electronic Ticketing Systems
Electronic ticket management system running on Docker with Redis caching support.
Laravel MySQL Redis Docker JavaScript
+RESTful API
NVŞ · BB
+RESTful API
Municipality
Nevsehir Municipality
Municipal service platform supported by API integrations.
PHP MySQL JavaScript
+RESTful API
MBB
+RESTful API
Municipality
Mersin Metropolitan Municipality
Municipal service platform supported by API integrations.
PHP MySQL JavaScript
GİADER · GÖZTEPE
Visit Project
Society
GİADER - Göztepeli İş İnsanları Derneği
Laravel-based society website and admin panel.
Laravel MySQL JavaScript CSS
SÖKE · UN
Visit Project
Corporate
Söke Un
Laravel-based corporate website and admin panel.
Laravel MySQL JavaScript CSS
+RESTful API
TOURISTALIA
+RESTful API
SaaS
Touristalia
Tourism platform built on Lumen and deployed with Docker.
Lumen MySQL Redis Docker
+RESTful API
İMR
+RESTful API
Visit Project
SaaS
İzmir Mekan Rehberi
Venue discovery and guide platform for locations in İzmir.
PHP MySQL JavaScript CSS
+RESTful API
İYİ · MASA
+RESTful API
Visit Project
SaaS
İyi Masa
Reservation and corporate donation platform.
PHP MySQL JavaScript CSS
+RESTful API
Extracım
+RESTful API
Visit Project
SaaS
Extracım
Employee and job search and guide platform.
Laravel PostgreSQL React Inertia Reverb Tailwind CSS Unit · Feature Testing
+RESTful API
YE · TİC.
+RESTful API
Visit Project
SaaS
Ye Ticaret
Laravel-based SaaS online food ordering platform.
Laravel MySQL Redis RabbitMQ JavaScript
+RESTful API
SUPPLIO
+RESTful API
Visit Project
SaaS
Supplio
Laravel-based SaaS platform.
Laravel MySQL Redis RabbitMQ JavaScript
VAVIEN
Visit Project
Corporate
Vavien Atelier
Laravel-based corporate website and admin panel.
Laravel MySQL JavaScript Tailwind
GONN · COM
Visit Project
Corporate
Gonn Community
Laravel-based corporate website and admin panel.
Laravel MySQL JavaScript CSS
+RESTful API
1924 · GÖN
+RESTful API
Visit Project
E-commerce
1924 Gönen Shop
PHP-based e-commerce and product management platform.
PHP MySQL JavaScript CSS
+RESTful API
DERMOCADE
+RESTful API
Visit Project
E-commerce
Dermocade
PHP-based e-commerce and product management platform.
PHP MySQL JavaScript CSS
SALADOS
Visit Project
Corporate
Salados
CodeIgniter-based corporate presentation website.
CodeIgniter MySQL JavaScript CSS
TTM
Visit Project
Corporate
Tunç Tarım Makina
Laravel-based corporate presentation website.
Laravel MySQL JavaScript CSS
İKİ · ÇİÇEK
Visit Project
Corporate
İki Çiçek
Laravel-based corporate presentation website.
Laravel MySQL JavaScript CSS
GMT · FOOD
Visit Project
Corporate
GMT Food
CodeIgniter-based corporate presentation website.
CodeIgniter MySQL JavaScript CSS
MENTOR
Visit Project
Corporate
Mentor Lojistik
CodeIgniter-based corporate presentation website.
CodeIgniter MySQL JavaScript CSS
SUCUK · MÜZESİ
Corporate
Cumhuriyet Sucukları - Sucuk Müzesi
Laravel-based corporate presentation and museum website.
Laravel MySQL JavaScript CSS
+RESTful API
SERKAN · AKGÖZ
+RESTful API
Visit Project
Corporate
Serkan Akgöz
Laravel-based corporate solutions platform.
Laravel MySQL JavaScript CSS
SACC · PRO
Visit Project
Corporate
SACC Pro
Laravel-based corporate solutions platform.
Laravel MySQL JavaScript CSS
DÜLGER
Visit Project
Corporate
Dülger İnşaat
CodeIgniter-based corporate presentation website.
CodeIgniter MySQL JavaScript CSS
u'TWO
Visit Project
Corporate
u'Two Coffee & Sandwich
Laravel-based corporate business website.
Laravel MySQL JavaScript CSS
ÇM
Visit Project
Corporate
Çubukçuoğlu Mühendislik
Laravel-based corporate engineering firm website.
Laravel MySQL JavaScript CSS
Contact

Let's Work Together

Feel free to reach out to discuss your project or explore freelance collaboration opportunities.

Phone
(+90) 546 685 1925
E-mail
onursevik@yandex.com
LinkedIn
linkedin.com/in/onursevik
Instagram
instagram.com/onursvik
Location
Konak, İzmir / Türkiye