Experience

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 Flag — Engineered 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 Engine — Architected 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 Service — Built an internal webhook broadcasting system to route WhatsApp events to multiple subscriber apps with low latency and fault-tolerant delivery.
• Gudang Garam Projects — Modernized 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

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 Fixes — Debugged and resolved service logic issues in controllers and query layers, improving response accuracy and reducing error rates on critical endpoints.
• Query Performance Optimization — Identified slow-running queries on Microsoft SQL Server, applied indexing strategies and query restructuring to improve response times.
• Data Flow Stabilization — Ensured 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

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 Connect — End-to-end backend and CMS for an Islamic boarding school management app — digital SPP payments, activity galleries, and student progress tracking.
• Steak Addict — POS 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

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 Modules — Built new backend modules for patient data management, enabling structured record-keeping and streamlined workflows for health center staff.
• CMS Dashboard Development — Developed admin dashboards for content and operational data management, improving visibility and control for internal teams.
• Performance Optimization — Implemented local performance improvements within new features — optimized database queries and reduced page load times for data-heavy views.

• CodeIgniter
• PHP
• MySQL
• GitLab
• Git