Available for hire
Lucky Wirasakti

Lucky Wirasakti

Web Developer • Reliable Systems

📍 Yogyakarta, Indonesia

Web developer passionate about building stable, efficient, and scalable systems. Skilled in designing data flows, optimizing performance, and creating architectures that are .

Now Playing

Vibing with AI

Building for Humans

2019
now

Experience

Erasys Consulting

Web DeveloperFulltime

5 yrs 7 mos

Driving the backend foundation for multiple enterprise-grade applications across clients such as Frisian Flag Indonesia and Gudang Garam — focused on scalable architecture, API performance, and automation reliability.

  • Enterprise Sales Platform — Frisian FlagEngineered and maintained a production-scale backend powering nationwide sales operations and store surveys. OAuth2 SSO, REST APIs for analytics and mobile clients, deployed via Dockerized services on GitLab CI/CD.
  • Chatbot Campaign EngineArchitected a rule-based WhatsApp chatbot for large-scale marketing campaigns. Redis-based locking, rate limiting, and service-layer orchestration to support real-time voucher distribution under heavy traffic.
  • Routing ServiceBuilt an internal webhook broadcasting system to route WhatsApp events to multiple subscriber apps with low latency and fault-tolerant delivery.
  • Gudang Garam ProjectsModernized the corporate web platform: integrated third-party market data APIs, migrated mapping from Google Maps to OpenStreetMap, and delivered a CMS-driven dynamic form system with async email workflows.
  • Django
  • Laravel
  • PHP
  • Python
  • MySQL
  • PostgreSQL
  • Docker
  • Redis
  • GitLab
  • New Relic
  • Linux
  • Firebase
  • SSH
  • Bash
  • MariaDB

PT ICP Cipta Prima

Back End DeveloperFreelance

6 mos

Supported the internal team in maintaining a CRM system for vehicle spare parts — focused on fixing REST API bugs, optimizing queries, and ensuring stable data flow across services.

  • REST API Bug FixesDebugged and resolved service logic issues in controllers and query layers, improving response accuracy and reducing error rates on critical endpoints.
  • Query Performance OptimizationIdentified slow-running queries on Microsoft SQL Server, applied indexing strategies and query restructuring to improve response times.
  • Data Flow StabilizationEnsured proper controller logic and consistent data handling across modules, validated fixes through local testing on a shared development database.
  • Laravel
  • Microsoft SQL Server
  • GitLab
  • Git

Credeva

Back End DeveloperFreelance

1 yr 1 mo

Delivered backend systems powering education, F&B, and enterprise platforms — from architecture design to production deployment. Built scalable REST APIs, optimized data workflows, and shipped CI/CD pipelines.

  • RQ ConnectEnd-to-end backend and CMS for an Islamic boarding school management app — digital SPP payments, activity galleries, and student progress tracking.
  • Steak AddictPOS and ordering system for a restaurant with real-time order management, payment, and delivery modules.
  • ICMI (Enterprise)Multi-feature platform — polling, loyalty programs, events, and broadcast systems — powered by Laravel, Redis, and MySQL.
  • Laravel
  • PHP
  • MySQL
  • GitLab
  • Git
  • Firebase

Digital Inovasi Bangsa

Back End DeveloperFulltime — Hybrid

1 yr 6 mos

Maintained and extended a backend system for a government health center (puskesmas) — developing new modules, CMS dashboards, and performance-optimized features for internal operations.

  • Data Management ModulesBuilt new backend modules for patient data management, enabling structured record-keeping and streamlined workflows for health center staff.
  • CMS Dashboard DevelopmentDeveloped admin dashboards for content and operational data management, improving visibility and control for internal teams.
  • Performance OptimizationImplemented local performance improvements within new features — optimized database queries and reduced page load times for data-heavy views.
  • CodeIgniter
  • PHP
  • MySQL
  • GitLab
  • Git

Education

Universitas AMIKOM Yogyakarta

Bachelor's degree, Informatika

GPA: 3.88 / 4.00

Publications

  • Multiclass Imbalanced Handling using ADASYN Oversampling and Stacking Algorithm

    Y. Pristyanto, A. F. Nugraha, A. Dahlan, L. A. Wirasakti, A. Ahmad Zein, I. Pratama

    2022 16th International Conference on Ubiquitous Information Management and Communication (IMCOM), Seoul, Korea, 2022, pp. 1–5

    DOI: 10.1109/IMCOM53663.2022.9721632
  • Dual Approach to Handling Imbalanced Class in Datasets Using Oversampling and Ensemble Learning Techniques

    Y. Pristyanto, A. F. Nugraha, I. Pratama, A. Dahlan, L. A. Wirasakti

    2021 15th International Conference on Ubiquitous Information Management and Communication (IMCOM), Seoul, Korea (South), 2021, pp. 1–7

    DOI: 10.1109/IMCOM51814.2021.9377420

Awards

  • 2nd Place — Innovative App Competition

    MAGE 5, Institut Teknologi Sepuluh November (ITS) Surabaya2019

    Built "Go-School", a transportation app for student pick-up services. Competed against 100+ teams from universities across Indonesia as Web Developer in team AMCC-Go-School.

Languages

  • Bahasa IndonesiaNative
  • EnglishReading & comprehension

Send a Message

Let's build something reliable together.