Full-stack software engineer with 3 years of experience building, migrating, and scaling an e-commerce SaaS web application across cloud native microservices on AWS. Specialised in TypeScript, React, and Node.js, particularly in full- stack feature development and third-party API integration. Enjoys bridging design, product, and engineering teams.

Kel Vyn Ong

Full-stack software engineer with 3 years of experience building, migrating, and scaling an e-commerce SaaS web application across cloud native microservices on AWS. Specialised in TypeScript, React, and Node.js, particularly in full- stack feature development and third-party API integration. Enjoys bridging design, product, and engineering teams.

Available to hire

Full-stack software engineer with 3 years of experience building, migrating, and scaling an e-commerce SaaS web
application across cloud native microservices on AWS. Specialised in TypeScript, React, and Node.js, particularly in full-
stack feature development and third-party API integration. Enjoys bridging design, product, and engineering teams.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Intermediate

Work Experience

Software Engineer at ReferralCandy (Anafore Pte. Ltd.)
January 1, 2022 - September 30, 2024
Collaborated with cross-functional Scrum teams to deliver full-stack React and Node.js production features on a serverless AWS environment supporting 50,000+ merchants with 99%+ monthly uptime. Integrated Shopify and Recharge subscription coupon GraphQL APIs using Node.js daemon jobs in ECS with rate-limit handling, persistent error retrying, and 99.9% uptime via SQS queues. Wrote and maintained integration documentation to capture feature behavior and limitations for future product development. Planned and built a Node.js script to automate large-scale customer data remapping in an RDS MySQL database for legacy deprecation, completing an error-free migration for 417 merchant accounts in 1m 35s. Developed an internal React CSV processor for Shopify payouts backed by Node.js, processing 40% of company revenue in under 3 minutes monthly and reducing manual processing time by 98%. Authored automated Ava.js unit tests, improving Node.js service coverage from 60% to consistently above 90%,

Education

B.Eng in Software Engineering at Singapore Institute of Technology (SIT)
January 1, 2023 - September 1, 2026
B.Eng in Software Engineering at Singapore Institute of Technology (SIT)
January 1, 2023 - September 1, 2026

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Retail