Senior Full Stack Engineer

I'm Raymond Sapida. I focus on the plumbing of the web, designing stable backends and scalable data pipelines.

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Selected Engagements

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0x01 / Product Engineering

SaaS Integration Platform

  • [+] Architected core integration logic for high-scale e-commerce synchronization.
  • [+] Reduced system latency by 40% through optimized message queuing and Ruby performance tuning.
  • [+] Engineered robust error-handling and retry mechanisms for distributed transactional integrity.
RAILS SIDEKIQ POSTGRES
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0x02 / Data Engineering

ML-Driven Sensor Data Pipeline

  • [+] Built end-to-end telemetry ingestion processing millions of sensor events daily.
  • [+] Integrated ML models for real-time anomaly detection using Python and specialized data streams.
  • [+] Implemented zero-downtime schema migrations for high-availability data warehouses.
PYTHON AWS_LAMBDA TERRAFORM

history Legacy & Contributions

Education LMS Platform

Full Stack Development & Rapid Prototyping. LMS architecture for education platforms.

Frontend Architecture System

UI Architecture & Frontend Systems Design. Technical documentation & API guides.

DevOps Automation Suite

DevOps automation and container orchestration. Mentorship and SOLID principles advocacy.

Side Projects

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neurology
0x03 / Applied AI

LLM Wiki

A personal knowledge base that began as a Rails bookmark collector and evolved into a RAG system. Scrapes and embeds saved content, then surfaces it through semantic search and LLM-powered question answering.

RAILS RAG EMBEDDINGS
sports_esports
0x04 / Systems Engineering

Bunot.io

A real-time, state-synced implementation of Filipino Mahjong. Exploring high-concurrency game logic and Monte Carlo algorithm for intelligent bot decision-making.

RAILS ACTION_CABLE REDIS

Technical Arsenal

A specialized toolkit spanning the entire lifecycle, optimized for stability and throughput.

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Backend Architecture

Ruby on Rails Node.js PostgreSQL Redis AWS Lambda
database

Data & ML

Python Pandas/NumPy Terraform Kafka ETL Pipelines
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Frontend Ecosystem

React / Next.js TypeScript Tailwind CSS Redux Hotwire/Stimulus