John Kevin Umali
Full Stack Engineer
Full Stack Engineer with 4+ years of experience in cloud apps, payment systems, and backend services using AWS, React, and Node.js.
About
I'm Kevin Umali, a Full Stack Engineer with over 4 years of experience. I've worked at Orbital, GecoGeco, and Accenture, mostly using AWS to build payment systems, user portals, custom apps, and data tools.
I work with React, TypeScript, Node.js, and AWS services daily. My projects include payment systems, onboarding flows, web crawlers, AI chatbots, and legacy migrations. I've built APIs, integrated services, and created automation tools. I have AWS certifications that help with system design. I enjoy seeing my work help people and companies.
Experience
Full Stack Engineer
Orbital
Building internal tools and customer features: onboarding portals, API key management, webhooks, alerts, and service integrations using React, NodeJS, TypeScript, AWS, GraphQL, and MongoDB.
- —Developed onboarding portal with React, AWS REST APIs, GraphQL, and custom MongoDB SDK
- —Built API key and webhook management tools for client integrations
- —Integrated Sumsub for real-time compliance monitoring of fiat and crypto transactions
- —Created alert systems to monitor transaction activity and notify teams of issues
Software Engineer — Fullstack Developer
GecoGeco Philippines
Built and improved AWS apps including data crawlers, Salesforce integrations, and M&A management platforms.
- —Enhanced M&A management platform with React.js, OpenSearch, AWS Lambda, and API Gateway
- —Developed AWS-powered web crawler using Puppeteer, Lambda, and EC2 to collect data from 300+ websites
- —Integrated Salesforce data for efficient search, recommendations, and reporting
Application Development Analyst — Backend & Frontend Developer
Accenture
Improved the Unified Agent Platform and built custom features for clients like Yahoo, PayPayCard, and Amazon Payment Services using AWS.
- —Built AI chatbot using AWS Lex and OpenSearch, adopted across multiple projects
- —Created meeting/callback scheduler for Yahoo using React, AWS Lambda, and DynamoDB
- —Developed chatbot search using OpenSearch for PayPayCard, first use of this tech in the team
- —Led 20+ monthly code reviews and mentored junior developers
Application Development Associate — Backend Developer
Accenture
Migrated 200+ legacy services from Dell Boomi to AWS, rebuilding architecture with Lambda, SQS, DynamoDB, and other AWS services.
- —Migrated 200+ legacy services from Dell Boomi to AWS
- —Built AWS frameworks using Lambda, SQS, SNS, DynamoDB, Kinesis
- —Created services with thorough Jest testing
Technical Support Representative
Teletech
Provided tech support for Best Buy customers, troubleshooting devices and managing accounts while keeping satisfaction scores high.