- RnD for Concurrency & Resilience Limit for API Gateway- RnD for Chaos Monkey Engineering Project- RnD for OpenAPI Initiative Project- PIC for ElasticSearch Cluster that handle billion documents, millions data changes per hour and millions search request per hour- Lead RnD Backend Engineer- Lead & Architect for External API Gateway- Lead & Architect for Internal API Gateway- Develop Blibli Backend Framework as new Foundation for All-New Blibli Backend Projects- Architect and Mentor for New Blibli Fraud Detection System- Mandatory Architecture Reviewer for All-New Blibli Microservices- Lead & Architect for Aggregate Platform Project- Lead & Architect for Scheduler Platform Project- Architect and Mentor for Blibli Customer Service Chat Tool- Architect and Mentor for Blibli Follow Store Project- Architect and Mentor for Blipay Mitra Project- Architect and Mentor for New Inventory Management System

- Architect for Inventory Management System- Mentor for Backend Engineers in Inventory Management System- R&D for Jenkins CI Automation- Mentor for Backend Engineers in Trade-In System- Mentor for Backend Engineers in Return System- R&D for Blibli Move to Cloud- Architect for Blibli Scheduler Platform- Architect for Blipay Authentication System- Architect for Blipay Merchant Administration Portal- Architect for Blibli Aggregator Platform- Performance Tuning for Blibli - Xiaomi Flashsale- R&D for Blibli Asian Games 2018 Ticketing System- Architect for BliPay Wallet System- Architect for BliPay API Gateway System.- Architect for BliPay Payment System.- R&D for WhatsApp Integration in Blibli Notification System.- R&D for Command Plugin in All New Blibli Backend System.- R&D for Client Side Load Balancer Library in Blibli SDK Client Framework.- R&D for Kafka Plugin in Blibli Event Driven System.- R&D for Template Plugin in Blibli Orchestrator System.- Initiator for Centralized Configuration in Blibli Backend System.- Mentor for Backend Engineers in Samsung Galaxy S9 Pre Order Project.- Mentor for Backend Engineers in Product Detail Project.- Mentor for Backend Engineers in Promo Bundling Project.- Mentor for Backend Engineers in Search Service Project.- Mentor for QA Engineers in QA Automation Project.- Mentor for Backend Engineers in Brand & Official Store Project.- OpenSource Contributor for Spring Cloud Project

- Architect for Backend System of Samsung Galaxy Launch Pack Pre-Order- Architect for New Backend API Gateway.- R&D for Backend Versioning Framework.- R&D for Standard Mandatory Param Framework.- R&D for Swagger Plugin Framework.- R&D for RxJava Command Framework.- R&D for Kafka Event Monitoring Framework.- R&D for Database Migration Framework.- R&D for Backend Hotel Search API.- R&D for CQRS in Fraud Detection System.- R&D for Blibli Token Verification Service.

I love to share my experience and knowledge about programming and technology in Programmer Zaman Now website and youtube channel.

As a course instructor, I create lot's of technology courses

Responsible for designing and maintaining elasticsearh cluster to support Keller William search, with contains more than 100 millions of document with total size 1,5 terra byte. All applications developed using NodeJS and TypeScript, and primary database using MongoDB

- Develop machine learning library using artificial neural network. The project build using Scala programming language.- Develop Averi, online prostitution identifier using Scala, Play Framework and Twitter API.- Deploying Averi project to Azure Cloud.- Develop StarMeeting, meeting room management system for Hotel using Spring Boot and MySQL.- Develop StarAds, ads management system for digital advertising. The project build using scala, play framework and MongoDB.

I work in Zenith as Freelance Backend Engineer. I responsible in creating backend system for some project in Zenith. - Creating backend system for Click 2 Catch that need to handle thousand concurrent user at a time.- Creating backend system for Pokojang Diary that can handle image processing for generating diary book based on user gallery.- Creating backend system for macroads that can handle scheduling for media ads in commuter line.- Database migration from oracle to sqlserver database in Honda Prospect Motor

I am one of founding members in Veritrans and join Veritrans since there is no transaction in Veritrans. In Veritrans, I'm join as Backend Engineer (code name Norris). I do some works like :- Maintenance, bug fixing and add new to feature to old payment system from Veritrans Japan.- Creating Veritrans VTDirect 1.0 based on old payment system.- Creating Veritrans http and email notification service.- Team leader in project new Payment API 2.0 with concept ONE (1 message, 1 endpoint, 1 response)

- Developing restfull backend application for PKH (Program Keluarga Harapan) using Java Web Application and Oracle Database.- Developing enterprise web application for "Sistem Database Pemasyarakatan Bapas dan Rupbasan" using Java Enterprise (JSF and JPA).- Data synchronization from main office to all branch office using restfull web service.- Integrating system with DSLR camera and Finger print device.

- Developing recovery and agency management system using Java Enterprise Stack (Java Server Faces, Jave Persistence API) and MySQL.- Creating parser for data migration from textfile to MySQL.- Create report files using JasperReport.- Deploying enterprise application to Glassfish Server and Windows Server

- Teach object oriented programming and distributed system.- Create material for students.- Give exercise for students.

- Develop customer corporate portal using Liferay and JBoss application server.- Develop rich internet application using Vaadin.- Bug fixing and add new feature in SIMKOPSYAH project using Spring Framework and Hibernate.- Almost code using Java programming language.

In PT. Perdana Informatika, I developer desktop application using Java Swing and MySQL Database. Also using Spring Framework and Hibernate Framework.