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Beytullah GünaydınFull Stack Developer

My professional work history and technical skills

Experience

Professionally I focus on shippable products; in my own projects I take full product ownership from idea to release preparation.

Work History

Yunsoft

Full Stack Developer

2024 - Present

Built AI platforms, Telegram Mini Apps, mobile apps, Directus backends, payment systems, Redis/BullMQ queues and WebSocket architectures.

  • LumixGen, SignalXpert, ClipmaticAI and game-like mini app projects
  • React/Next.js, React Native, Node.js, Directus and MySQL
  • Payment, membership, notification, rate-limit and queue workflows

ElifSoft

React Native Intern

2023

While building TaskShare CRM, I gained practical experience in planning, data modeling, role-based permissions, ticket systems and mobile integrations.

  • Firebase Auth and Realtime Database
  • Redux, dynamic theme, QR/NFC, file and camera access
  • Hierarchical department/permission model

CodeBefore

Volunteer Mobile Intern

2023

Learned mobile development with Flutter and Dart, teamwork and production processes in a company environment.

  • Mobile UI practice
  • Teamwork
  • Entry-level Flutter/Dart

Product Log

Own Products

Products where I own the idea, architecture, design direction, backend and release preparation end to end.

iOS + Apple Watch + Directus

Step Squad ↗

Built HealthKit step tracking, challenge flows, squad collection, leaderboard, RevenueCat premium and rewarded ad unlock workflows.

Unity + C# Mobile Game

Fruit Cauldron ↗

Developed the one-hand fruit merge/drop puzzle loop, offline score/settings and store asset/metadata preparation.

React + Directus + OpenRouter

Detective Simulator ↗

Designed the scenario-based detective game CMS, session flow, interrogation, hints, AI answers, rate limits and resume experience.

Next.js + AI Decision Engine

LeagueAssistant ↗

Built patch-aware recommendation logic, deterministic scoring, server-side AI orchestration, cache/rate-limit/fallback and regression tests for Pick Helper and Post-Pick Advisor.