Onur Uysal

Senior Full-Stack Software Developer

Antalya, Turkey

Building exceptional digital experiences with modern technologies

Projects

A selection of web and mobile products I've built and shipped

Slothwise

A production AI health companion for iOS and Android that unifies medical records, insurance claims, wearable data, medications, nutrition, symptoms, and lab results into one personal health timeline — accessible via app or SMS.

  • Built secure wearable & FHIR health-data ingestion pipelines with webhook processing and normalization
  • Owned cross-platform subscription/entitlement architecture across RevenueCat, Autumn, and Supabase
  • Led Expo/React Native upgrades and EAS Build/OTA release infrastructure
  • Connects 60,000+ healthcare/insurance portals and 300+ wearables and health apps
React NativeExpoTypeScriptSupabaseFHIRRevenueCatBunHono
LiveApp StorePlay Store

Hastanem Yanımda

Top-rated medical app with 50k+ downloads and 4.7-star rating, featuring cloud-based video calls, messaging, and payment integration.

  • 50k+ downloads
  • 4.7-star user rating
  • Cloud-based video calls
  • Real-time messaging and notifications
React NativeNode.jsDockerMongoDBWebRTC

Kobimat AI

An AI-native marketing operating system for SMEs. Combines brand intelligence, RAG-powered content generation, multimodal image/video production, campaign planning and social publishing in a secure multi-tenant SaaS platform.

  • Multi-tenant SaaS architecture with company-level data isolation and RBAC
  • Multi-provider AI orchestration (OpenAI, Gemini, Claude, DeepSeek, Kie, FAL) with routing, fallback, and cost tracking
  • RAG-powered brand-aware content generation using Qdrant
  • End-to-end AI video pipeline: storyboard, keyframes, Remotion/FFmpeg composition
Laravel 12ReactTypeScriptMySQLRedisQdrantOpenAIGeminiClaudeRemotionFFmpeg
Live

Experience

Software Developer

Nov 2022 — Present

İş Sistem · Istanbul, Turkey

  • Led full-cycle development and management of the KFC Türkiye mobile app, enhancing UX and boosting user satisfaction metrics (from 2.1 to 4.2 stars)
  • Implemented key features including advertisement integrations, deep linking, notifications, and real-time reporting to enhance business impact
  • Conducted data analysis using Firebase and Google Analytics
  • Integrated advanced security protocols, including Play Integrity API and TrustKit, to protect user data
  • Enhanced code quality and maintainability by adopting TypeScript, ESLint, and Sentry for error monitoring and proactive issue resolution
  • Established CI/CD pipelines using Fastlane, automating deployment processes to app stores for faster updates
  • Architected a scalable, white-label, multilingual website using Next.js and Directus CMS under tight deadlines
  • Fostered a collaborative environment to align marketing, product, and tech teams on project requirements and localization strategies
React NativeTypeScriptNext.jsFirebaseGoogle AnalyticsPlay Integrity APITrustKitFastlaneSentryESLint

Senior Mobile Application Developer & Shareholder

Feb 2021 — Aug 2022

Hastanem Yanımda · Istanbul, Turkey

  • Originated and evolved a top-rated medical app, amassing 50k+ downloads and a 4.7-star user rating, placing it among the leading medical apps in Turkey
  • Implemented end-to-end functionalities including cloud-based video calls, messaging, payment integration, and real-time notifications
  • Led backend development initiatives using Node.js, Docker, and MongoDB, enabling reliable, scalable operations
React NativeNode.jsDockerMongoDBWebRTCPayment Integration

Client Side Engineer

Dec 2021 — Sep 2022

Tapu.com · Istanbul, Turkey

  • Worked on B2B and e-commerce web applications that use Angular, Next.js, or Pebble, as well as a React Native mobile e-commerce application
  • Resolved errors and implemented tests to improve performance for real-time auction system for real estate
  • Used tools like Segment, Sentry, and Adjust to track users
  • Developed a Bot that controls the pull requests and notifies the related team
  • Managed 40k weekly users for the mobile app and thousands of users per minute on the web
AngularNext.jsReact NativePebbleSegmentSentryAdjust

Skills

Frontend

ReactNext.jsTypeScriptAngularJavaScriptHTML/CSS

Mobile

React NativeiOS DevelopmentAndroid Development

Backend

Node.jsMongoDBDocker

Tools & Platforms

FirebaseGoogle AnalyticsFastlaneSentrySegmentAdjustESLintGitCI/CD

Education

Master of Science: Computer Engineering

09/2023 — Present

İzmir Katip Çelebi University · Istanbul, Turkey

Currently pursuing Master of Science in Computer Engineering

Bachelor of Science: Electrics & Electronic Engineering

09/2015 — 07/2021

Marmara University · Istanbul, Turkey

  • Final Project I: Designing a microstrip antenna for 5G applications
  • Final Project II: Designing and developing a mobile application: Hastanem Yanımda (iOS & Android)