LEYNARDO YOSEF
GO • NODE.JS • DISTRIBUTED SYSTEM • SCALABLE BACKEND
Backend Engineer with 4+ years of experience building scalable, secure, and high-performance systems across logistics, government, crypto/NFT, and community platforms.
> SYSTEM PROFILE
CORE INFORMATION
Date of Birth
01 September 1997
Location
Indonesia
I specialize in backend system architecture, RESTful API development, database optimization, authentication, and distributed system design. Experienced in both B2B and B2C environments.
SOFT SKILLS
System Thinking
Problem Solving
Leadership & Mentoring
Agile Collaboration
EDUCATION
Bachelor of Computer Science
Universitas Bina Nusantara
Teknik Informatika
2016 - 2023
GPA: 2.80
> EXECUTION HISTORY
Backend Engineer – Go
- Designed B2B & B2C logistics systems
- Built order creation & shipment tracking services
- Developed driver rewards service
- Built RESTful JSON APIs
- Optimized PostgreSQL queries
- Implemented JWT authentication
- Used Redis & RabbitMQ for scalability
Backend Engineer – Node.js
- Designed backend architecture for NFT & crypto platform
- Optimized database queries (30% improvement)
- Integrated third-party services & APIs
- Conducted code reviews and mentored junior developers
Backend Engineer – Node.js
- Maintained and optimized penalty services
- Refactored monolithic code into modular architecture
- Synchronized penalty data across services
Lead Backend Engineer
- Founded and managed community platform (1,500+ users)
- Led 30+ staff and 6 developers
- Built microservices (Discord bot, statistics, logging)
- Used Redis for real-time systems
> CORE MODULES
Backend
- Node.js (ExpressJS, NestJS)
- Go (Gin, Go-Chi)
Frontend
- ReactJS
- VueJS
- JQuery
Databases
- PostgreSQL
- MySQL
Messaging
- RabbitMQ
Cache
- Redis
DevOps
- Docker
- Nginx
- Apache
Version Control
- Git (GitHub, Bitbucket)
Operating Systems
- Linux
- Ubuntu
- Debian
- Windows Server
Years Experience
Technologies
Projects Delivered
System Uptime
> DEPLOYED SYSTEMS
Logistics Platform
B2B & B2C
Comprehensive logistics management system handling order creation, shipment tracking, and driver rewards. Built to scale with high availability and real-time tracking capabilities.
Key Features
- Order Management System
- Real-time Shipment Tracking
- Driver Rewards & Incentives
- RESTful API Integration
- Message Queue Processing
Government Penalty System
OSS Platform
Enterprise-level penalty management system for the Ministry of Investment. Refactored from monolithic to modular architecture with improved performance and maintainability.
Key Features
- Penalty Management
- Data Synchronization
- Modular Architecture
- Performance Optimization
- Service Integration
NFT & Crypto Platform
Web3 Integration
Backend infrastructure for NFT marketplace and cryptocurrency platform. Optimized database queries achieving 30% performance improvement with robust third-party integrations.
Key Features
- NFT Marketplace Backend
- Crypto Wallet Integration
- Query Optimization
- Third-party API Integration
- Code Review System
Community Platform
Gaming & E-learning
Community management platform serving 1,500+ active users. Microservices architecture with Discord integration, real-time statistics, and comprehensive logging system.
Key Features
- Discord Bot Integration
- Real-time Statistics
- Microservices Architecture
- User Management (1,500+ users)
- Event Logging System
Interested in Working Together?
I'm always open to discussing new projects, creative ideas, or opportunities to be part of your vision.
Initialize Communication> COMMUNICATION INTERFACE
CONNECT WITH ME
Feel free to reach out through any of these channels. I'm always open to discussing new opportunities, collaborations, or just having a chat about technology.
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System Status: Available for Opportunities