Jan Dranreb R. Balangue

Software Developer

Full stack developer with hands-on experience delivering production systems from API design to deployment. Strong background in backend development, workflow automation, and CI/CD implementation for reliable and faster releases.

Core Skills

JavaScript (ES6+) TypeScript React Node.js Fastify Express REST APIs BullMQ Cron Jobs DevOps Docker / Compose CI/CD MongoDB PostgreSQL Supabase Git / GitHub / Bitbucket Linux

Experience

Allied Marketing - Full Stack Developer

March 2023 - Present

  • Owned the end-to-end delivery of all projects, managing server operations, including installation, configuration, and deployment, to ensure smooth and efficient performance.
  • Converted designs into responsive email templates, ensuring optimal compatibility across various devices and email clients, contributing to successful marketing campaigns.
  • Developed in-house tools to streamline workflows, automate repetitive tasks, and enhance productivity and collaboration within the team.
  • Designed and implemented CI/CD pipelines using Bitbucket, enabling automated deployments and reducing time-to-market for project releases.
  • Built a UI-based tool to automate email warm-up, replacing manual scripts with an API-driven system. Added scheduling, mail class selection, and recipient management to gradually increase volume and improve sender reputation.

Digiteer - Software Developer

September 2021 - December 2022

  • Developed, maintained, and enhanced Digiteer's full stack applications.
  • Worked alongside the CTO.
  • Managed and monitored AWS cloud services.

Splasheo - Software Developer

March 2021 - August 2021

  • Developed a REST API for generating video thumbnails, optimized for performance and security.
  • Integrated with other services to enhance user experience.

Selected Projects

Email Warm-Up Automation

Developed a UI and API-based platform replacing manual scripts, with scheduling and recipient control to strengthen sender reputation.

Point of Sale System

Implemented maintenance and feature improvements while supporting AWS operations.

Brother's Keeper

Supported ongoing improvements for a membership management and monitoring system.

Santi E-Learning Platform

Delivered continuous enhancements and maintenance on an online learning platform.

Splasheo Media Platform

Built API services for thumbnail generation and integrated social publishing workflows.

Education

Christ the King College - BS in Information Technology (2015 - 2020)