Farhan Arfianto — Fullstack Developer & Backend Engineer

Professional Summary

Results-driven and highly collaborative Fullstack Developer and Backend Engineer with over 5 years of professional experience designing, building, and maintaining scalable web applications, high-performance API ecosystems, B2B transactional platforms, and system observability suites. Specialized in Golang (Echo) and PHP (Laravel, CodeIgniter), with strong expertise in high-concurrency background task processing (Asynq, Redis), transactional databases (PostgreSQL, MySQL), containerization (Docker), API monitoring (Grafana, Prometheus), and modern frontend integration (Vue.js, Next.js, React, Livewire). Proven track record of developing complex real-time data platforms, multi-merchant payment gateways, and enterprise portals.

Core Competencies

Programming Languages

Golang PHP JavaScript (ES6+) TypeScript SQL

Frameworks & Libraries

Echo (Go) Laravel CodeIgniter Vue.js Next.js React Livewire Express.js

Queues & Task Processing

Asynq Redis Message Queues

DevOps & Observability

Docker Grafana Prometheus Loki Git CI/CD

Databases & Caching

PostgreSQL MySQL Redis Pentaho SQL Optimization ETL

APIs & Integrations

RESTful APIs JWT B2B Integrations PPOB Gateways Payment Gateways Supplier APIs

Professional Experience

Fullstack Developer

Lumoshive · Jakarta, Indonesia

April 2021 – Present

Engineered and architected Airtime (B2B PPOB Platform) in Golang and PostgreSQL, establishing a high-throughput engine for automated pulsa, data, and utility bill disbursements.
Implemented Asynq distributed task queue backed by Redis for asynchronous transaction dispatching, retry mechanisms, and supplier status polling with 99.9% delivery reliability.
Engineered new features, resolved bugs, and implemented system improvements to enhance overall application stability and UX across multiple production platforms.
Architected a high-performance backend in Golang (Echo) to ingest and process real-time external sports APIs, power gameweek dream team selection mechanics, and run match score prediction systems.
Engineered Airgift, a robust transactional middleware connecting multiple top-up suppliers to portal merchants using Laravel, Redis, PostgreSQL, Docker, Grafana, and Prometheus.
Developed and launched Gameshop, a dedicated consumer game top-up portal integrating multi-channel e-wallet and mobile billing payment gateways with automated voucher delivery.
Maintained, optimized, and upgraded core modules of an enterprise-grade HRIS application using Laravel and Livewire (attendance monitoring, leave management, employee directory).
Containerized applications using Docker to standardize development environments and implemented Grafana/Prometheus dashboards for real-time API request monitoring and tracking latency.
Collaborated with and mentored team members, conducting code reviews and resolving technical blockers to maintain high code quality.

PHP Developer

Anggada Duta Wisesa, PT · Jakarta, Indonesia

May 2020 – March 2021

Designed and executed complex SQL queries to analyze data warehouse repositories using Pentaho Data Integration, generating actionable business insights.
Developed new features, resolved bugs, and maintained corporate E-Procurement client applications built with PHP (CodeIgniter) and frontend JavaScript, ensuring optimal performance and secure transaction modules.

Key Projects

Airtime: B2B PPOB Transaction Platform

Engineered a robust B2B PPOB platform facilitating bulk digital product distribution (Pulsa, Data, PLN, Bill Payments) across multiple merchant clients. Leveraged Golang and Asynq for concurrent, non-blocking asynchronous task execution and Redis job queuing, preventing transaction bottlenecks during peak usage hours.

Golang PostgreSQL Laravel Redis Asynq Docker

Fantasy Eleven Football Strategy Platform

Fantasy Eleven: Football Strategy & Fantasy Team Platform

Developed a Golang backend ingesting external sports APIs for clubs, players, and leagues. Engineered a dynamic, gameweek-based dream team selection system and an interactive upcoming match score prediction engine.

Golang (Echo) Next.js Redis

Airgift: Transactional Middleware & Multimerchant API

Architected and developed a specialized middleware orchestrating transaction routing between multiple game/voucher suppliers and frontend portal merchants. Utilized Redis for asynchronous queuing, Docker for deployment containerization, and Grafana/Prometheus for latency monitoring.

Laravel Redis PostgreSQL Docker Grafana

Gameshop: Consumer Game Top-Up Portal

Developed a high-conversion game top-up web portal, integrating diverse payment methods (e-wallets, mobile credit/pulsa billing) to deliver immediate automated game voucher purchases and direct-to-account top-ups.

Laravel MySQL Payment Gateways

Enterprise Human Resource Information System (HRIS)

Engineered and managed critical core modules of an enterprise HRIS web application. Successfully developed automated leave request approval pipelines, biometric and manual attendance tracking systems, and a scalable employee directory database.

Laravel MySQL Livewire

Education

2021 – 2025

Universitas Indraprasta PGRI (UNINDRA)

Bachelor of Science in Information Technology

GPA: 3.61 / 4.00

July 2017 – August 2021

SMKN 26 Jakarta

Vocational High School Diploma in Network & System Administration

Contact

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