Frenki Herlambang Prasetyo

About Me

I'm a fullstack developer. Most of my time is spent building web applications that stay fast even when they grow bigger, as well as AI and automation tools for brands that want to work smarter.

I did not study computer science. My degrees are in educational technology, but I have been building for the web since 2019, and I worked as a freelancer for some years before I joined a company full time.

I live in Yogyakarta with my beautiful wife and our son. I really love coffee, so there is usually a cup beside me while I am working. 😁☕

Photos

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Experience

  • Senior Fullstack DeveloperRed Comm Indonesia

    July 2023 – Present · Remote, Indonesia

    • AI Business Solutions & RAG: Implemented Retrieval-Augmented Generation (RAG) architectures to deliver context-aware AI solutions, enhancing internal knowledge retrieval and client-facing chatbots.
    • Social Listening & Automation: Integrated social listening data and automated workflow pipelines to analyze brand sentiment, monitor trends, and optimize digital marketing strategies.
    • Web Performance Optimization: Increased web performance by 58% as measured by Google Lighthouse scores by implementing server-side rendering with Next.js and optimizing large asset delivery.
    • Backend Architecture: Increased backend throughput by up to 200% on stress testing benchmarks by migrating legacy PHP-FPM architecture to FrankenPHP in worker mode, eliminating repeated application bootstrapping.
    • Infrastructure & CI/CD: Designed Continuous Integration & Continuous Deployment (CI/CD) pipelines utilizing GitHub Actions, Docker, and Vercel for reliable code delivery, while integrating Sentry for comprehensive runtime exception monitoring.
  • Backend DeveloperPrioritas Web Teknologi

    Feb 2020 – Jul 2023 · Yogyakarta, Indonesia

    Developed enterprise-grade APIs utilizing the Laravel Framework based on the jsonapi.org specification, alongside handling automated and scheduled data operations.

    • Procurement Monitoring System: Centralized regional procurement monitoring, enabling real-time tracking of all RUP and LPSE packages across Yogyakarta by developing a custom dashboard and RESTful API services for automated data synchronization.
    • Government Workflow Digitization: Optimized the regional archival supervision workflow for Dinas Perpustakaan dan Arsip Daerah DIY, driving the transition from manual processes to a centralized Electronic-Based Government System (SPBE) at kinarya.jogjaprov.go.id.
    • Surveillance Integration: Enabled real-time provincial surveillance by successfully synchronizing CCTV live streams and multimedia assets for the Yogyakarta Government, engineering a Laravel API service that integrates directly with the Wowza Streaming Engine (mam.jogjaprov.go.id).
  • Freelance DeveloperSelf Employed

    Dec 2019 – Jan 2020 · Yogyakarta, Indonesia

    • EdTech Certification Platform: Digitized the English proficiency certification process to enable dynamic performance tracking across multiple difficulty levels. Built a custom scoring engine and interactive reporting dashboard using Laravel and JavaScript (tevocs.id).
    • Membership Management System: Built an automated member lifecycle management system to ensure timely renewal payments and event participation by engineering a background job system that triggers email notifications for dues and upcoming events (anggota.abkin.org).

Education

  • M.Pd. Instructional TechnologyUniversitas Negeri Yogyakarta

    2017–2021

  • S.Pd. Educational TechnologyUniversitas Negeri Yogyakarta

    2011–2016

Technologies

Languages
PHP, Go, JavaScript, Python, Rust
Infrastructure & DevOps
AWS, Docker, Vercel, GitHub Actions, Git
Specializations
AI Pipelines, RAG Implementation, Social Listening Integration, System Automation