JAS

Hi, I'm John Angelo 👋

Senior Software Engineer with 10+ years of experience building scalable backend and distributed systems using Java and Python. Experienced in designing real-time, event-driven architectures with Kafka and developing cloud-native applications on AWS and Kubernetes.

Strong background in microservices, RESTful APIs, and high-performance systems, with hands-on experience integrating machine learning models (PyTorch, XGBoost, Scikit-learn) into production environments to improve decision accuracy and system efficiency.

Quick & Fun Facts

Oscilar
B.S. in Computer Science — NTU (National Taiwan University)
Philippines
EN
Senior Software Engineer
Book Reviewer
Sci-fi Fan
Skiing Enthusiast

Tech Skills

java icon
Java
spring icon
Spring Boot
python icon
Python
django icon
Django
fast-api icon
FastAPI
flask-dark icon
Flask
javascript icon
JavaScript
typescript icon
TypeScript
reactjs icon
React
nextjs icon
NextJS
angular icon
Angular
tailwindcss icon
Tailwind CSS
postgresql icon
PostgreSQL
mysql icon
MySQL
sql-server icon
SQL Server
redis icon
Redis
mongodb icon
MongoDB
docker icon
Docker
aws icon
AWS
kubernetes icon
Kubernetes
terraform icon
Terraform
kafka icon
Kafka
pytorch icon
PyTorch
xgboost icon
XGBoost
scikit-learn icon
Scikit-learn
git icon
Git
ci-cd icon
CI/CD

Work Experience

View all5→
Oscilar logo

Senior Full Stack/AI Engineer @ Oscilar

Feb 2023 – Present
Remote, US

Designed and developed backend services using Java (Spring Boot) and Python for an AI Risk Decisioning Platform, enabling real-time fraud, credit, and compliance decisioning with Kafka event streaming and ML model integration.

Docker logo

Full Stack Developer @ Docker

Apr 2020 – Dec 2022
Remote, US

Developed backend services using Python for Docker Hub, supporting image repository management at scale, and built responsive frontend features using React and TypeScript.

Octopus Deploy logo

Mid-level Developer @ Octopus Deploy

Feb 2018 – Feb 2020
Remote, Australia

Developed backend APIs using Java (Spring Boot) for deployment orchestration, built frontend features with React and TypeScript, and migrated legacy services to microservices architecture.

White Cloak Technologies logo

Full Stack Developer @ White Cloak Technologies

Dec 2015 – Nov 2017
Onsite, Philippines

Developed backend services using Java (Spring Boot) for UnionBank Online, supporting financial transactions for a high-traffic platform serving millions of users, with React frontend interfaces.

Recent Projects

View all4→
Oscilar's AI Risk Decisioning Platform
Explore Project→

Oscilar's AI Risk Decisioning Platform

A real-time AI-powered fraud and risk decisioning system for financial institutions

Docker Hub
Explore Project→

Docker Hub

The world's largest container image registry platform

Octopus Deploy
Explore Project→

Octopus Deploy

An enterprise deployment automation and release management platform

UnionBank Online
Explore Project→

UnionBank Online

An award-winning digital mobile banking platform serving millions of users