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Barkın Balcı

Backend Engineer

$ skills
Go Python PostgreSQL Kubernetes AWS Docker Redis Elasticsearch

Projects

Coilcrypt - Password Manager

Developed a secure, cross-platform password manager with end-to-end encryption, delivering seamless password management across web and mobile platforms

Technical Highlights:
  • Built using React, React Native, and Node.js with AES-256 encryption and PBKDF2 key derivation
  • Implemented Realm database for offline data access and automatic synchronization across devices
  • Designed end-to-end encrypted solution ensuring secure credential storage
  • Created unified user experience across web and mobile platforms
Node.js MongoDB Realm React React Native AES-256 PBKDF2

Cuckoo - Calendar & Reminder App

Developed a cross-platform calendar and reminder application, delivering consistent user experience across web and mobile platforms

Technical Highlights:
  • Built with Flutter and Dart for seamless cross-platform functionality across iOS, Android, and web
  • Integrated Firebase Authentication and Cloud Firestore to enable real-time data synchronization and secure user credential management across multiple devices
  • Implemented push notifications using Firebase Cloud Messaging (FCM) to deliver timely reminder alerts and calendar event notifications to users
  • Designed intuitive user interface with Material Design principles for consistent experience across platforms
Dart Flutter Firebase Cloud Firestore Firebase Auth FCM

Skills & Certifications

Technical Expertise

Backend Development

  • Go, Python, C#, Java
  • Django, FastAPI frameworks
  • Microservices architecture
  • RESTful API design

Databases & Caching

  • PostgreSQL, MongoDB, DynamoDB
  • Redis for caching and sessions
  • Elasticsearch for search & logging
  • Database optimization

Infrastructure & DevOps

Container Orchestration

  • Kubernetes on AWS EKS
  • Docker containerization
  • Helm chart management
  • Configuration as code

Cloud & Monitoring

  • AWS cloud infrastructure
  • CI/CD with Bitbucket Pipelines
  • APM tools (New Relic, Sentry)
  • Distributed tracing

Professional Certifications

Cloud & Database

  • AWS Certified Cloud Practitioner
  • MongoDB Certified Developer

Specialized Skills

  • NVIDIA Jetson AI Specialist
  • Cisco Linux Essentials
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Let's Connect

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Istanbul, Turkey
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