Ganendra Wishnu Wardhana

Backend Developer & Network Engineer

087774132234

Sidoarjo, Indonesia

About Me

6th-semester Internet Engineering Technology student specializing in backend system development with a deep interest in blockchain technology. Experienced in designing and building APIs (REST & GraphQL), managing databases, and debugging systems. Possesses a strong technical understanding of distributed systems architecture and network fundamentals (TCP/IP, Server Configuration). Currently developing a private blockchain ecosystem from scratch using Hyperledger Besu for a digital rupiah project.

Selected Projects

Private Blockchain Ecosystem for Digital Rupiah

Built a private blockchain ecosystem from scratch. Implemented a Hyperledger Besu node with QBFT consensus. Developed a Block Explorer (Qrypscan) using Next.js, GraphQL, and REST API for real-time node data parsing via WebSocket, and a Web3 Wallet (Qrypta) using Flutter. Implemented smart contract verification logic and on-chain data optimization using PostgreSQL & TimescaleDB.

PiFace: Distributed Face Detection System

Designed a distributed face detection system to overcome computational limitations on Raspberry Pi. Separated I/O tasks (on edge devices) from heavy computation (on a central server) using Python and Deepface. Created an efficient workflow by offloading machine learning processes to the server, significantly optimizing performance.

RMI Cinema: Distributed Booking System

Developed a distributed cinema ticket booking system using Java RMI. Managed movie, seat, and booking data with an SQL database. Applied application-level locking mechanisms to ensure data integrity and prevent double-booking in a multi-JVM system.

Skills

  • Languages: Java, Python, JavaScript, PHP
  • Backend: Node.js (Express), Spring Boot, Laravel
  • Databases: PostgreSQL, SQL
  • Blockchain: Hyperledger Besu, Solidity, Web3.js, QBFT
  • Networking: TCP/IP & UDP, Cisco Config, DNS, Linux Admin
  • Tools: Git, Docker, Nginx, GraphQL, REST API

Education

B.App.Sc in Internet Engineering Technology

Electronic Engineering Polytechnic Institute of Surabaya (PENS)

Aug 2023 — Present | GPA: 3.71

Focus on Web Development, Computer Networks, Database Systems, and IoT.