J

John Angelo

About

Detail

Angeles, Central Luzon, Philippines
Contact John regarding: 
work
Full-time jobs
Starting at USD4k/month
Flexible work
Starting at USD40/hour

Timeline

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Job
school
Education

Résumé

Jobs verified_user 0% verified
  • Oscilar
    Senior Full Stack/Al Engineer
    Oscilar
    Feb 2023 - Mar 2026 (3 years 2 months)
    • Designed and developed backend services using Java (Spring Boot), Python for Oscilar Al Risk Decisioning Platform, enabling real-time fraud, credit, and compliance decisioning across financial transactions. • Built low-latency decisioning services, reducing average response time to under 100ms for transaction risk evaluation across high-volume streaming pipelines. • Implemented event-driven architecture using Kafka, processing thousands of events per second for real-time ingestion and decisioning workflows. • Designed and implemented RESTful APIs for transaction processing and risk evaluation, enabling reliable communication between distributed microservices. • Designed and optimized PostgreSQL schemas for transaction and user data, impro
  • Docker
    Full Stack Developer
    Docker
    Apr 2020 - Dec 2022 (2 years 9 months)
    • Developed backend services using Python for Docker Hub, supporting image repository management and handling thousands of concurrent requests at scale. • Built responsive frontend features using React and TypeScript, improving usability and reducing page load time by ~25% across key workflows. • Designed and implemented RESTful APIs, improving response latency from ~200ms to ~120ms for frequently accessed container image operations. • Implemented asynchronous task processing using Celery, improving background job handling for image processing, notifications, and system workflows. • Optimized backend services to support high-volume image pull and push operations, improving system throughput and stability under peak traffic conditions. • Imp
  • Octopus Deploy
    Mid-level Developer
    Octopus Deploy
    Feb 2018 - Feb 2020 (2 years 1 month)
    • Developed backend APIs using Java (Spring Boot) for Octopus Deploy, supporting deployment orchestration across distributed environments. • Built frontend features using React and TypeScript, improving usability of deployment dashboards and release workflows. • Migrated legacy services to microservices architecture, reducing deployment failures by ~20%. • Optimized API performance, reducing response latency from ~100ms to ~40ms for key endpoints. • Implemented secure communication between services and deployment agents, improving reliability across network environments. • Collaborated on feature delivery and production issue resolution, improving overall system stability.
  • White Cloak Technologies
    Full Stack Developer
    White Cloak Technologies
    Dec 2015 - Nov 2017 (2 years)
    • Developed backend services using Java (Spring Boot) for UnionBank Online, supporting financial transactions for a high-traffic platform serving millions of users. • Built frontend interfaces using React, improving user experience for banking dashboards and services. • Designed microservices architecture, improving scalability and independent deployment of core banking features. • Implemented secure authentication flows including OAuth and multi-factor authentication. • Delivered features in agile cycles, contributing to rapid MVP development and continuous platform improvements.
  • S
    Web Developer
    Startechup Inc.
    Dec 2013 - Oct 2015 (1 year 11 months)
    • Developed e-commerce web applications using Python (Django) and AngularJS, implementing product catalog and checkout systems. • Built RESTful APIs and designed PostgreSQL schemas for user, order, and inventory management. • Integrated payment and shipping services, improving platform functionality and user experience.
Education verified_user 0% verified
  • N
    Bachelor's Degree of Computer Science
    National Taiwan University (NTU)
    Sep 2009 - Jun 2013 (3 years 10 months)