Ralph Jonas Mungcal — Full-Stack Developer & AI Integration Specialist
full-stack developer & ai integration specialist. i build scalable, practical software — backend architecture, cloud infra, dev tooling, ai-powered workflows.
About Ralph Jonas Mungcal
full-stack developer and ai integration specialist based in the philippines. i build products end-to-end — from backend architecture and cloud infra to dev tooling and ai-powered workflows.
i focus on writing clean, maintainable systems that solve real problems. whether it's orchestrating payments across multiple gateways, building data aggregation pipelines, or self-hosting infra — details matter.
Projects
- flight-rewards-search node · ts · postgres · gcp
reward flight availability search across major airlines — node.js and typescript backend, postgresql search index, and gcp ingestion pipelines.
- billing-payment-platform node · ts · gcp · event-driven
payment orchestration across multiple gateways with unified subscription billing, dunning, and smart retries — typescript on an event-driven gcp stack.
- subscription-event-bus node · gcp · pub/sub
event-driven subscription billing on gcp pub/sub — lifecycle fan-out, idempotent consumers, retry policies, and dead-letter handling under load.
- ai-meeting-editor python · whisper · deepgram · ffmpeg · pytorch · aws
ai meeting editor that detects where a discussion really starts and ends, trimming dead air with whisper, deepgram, ffmpeg, and pytorch on aws.
- ai-dev-workflow-standards claude · openai
internal standards for ai-assisted development — agent setup, prompt patterns, and review gates that keep claude and openai coding consistent across a team.
- airline-data-bots ts · puppeteer · bullmq
scheduled scrapers collecting flight availability from multiple airline sources — typescript and puppeteer with bullmq job scheduling and retries.
other-work
- remote-mcp-server ts · node · docker
model context protocol server over url — ai assistants hit custom tools via sse transport.
- home-infra-lab docker · linux · truenas · tailscale
multi-node self-hosted services — nas, media, workflow automation, monitoring dashboards.
- loyalty-points-transfer node · ts · react
cross-program loyalty point transfer flow — backend conversion logic with a clean ui on top.
- local-ai-inference-server linux · ml-inference
self-hosted inference box for local llm + transcription workloads — keep data off the cloud.
- airline-route-mapping ts · node
- audit-report-generator angular · node · sql · aws
- accident-detection-system rpi · python · mongo · express · angular
Side Projects
showing 3 of what i'm up to right now. tap see all projects below for the full list.
- subconscious
subscription tracking — take control of recurring expenses.
- spot-the-synth
community-driven ai photo spotting and discussion.
- ascii-art-gen
generate ascii art from text and images, right in the browser.
Writing
- Claude Skills That Changed My Workflow
- I Set Up AI Agents to Build Features for My Projects — Here's What Happened
- How to Become AI Native
- Software Engineer Interviews for the Age of AI
- Software Engineers Don't Have a Time Problem. We Have a Context-Switching Problem.