Open to opportunities

cohani tay

@cohanitay

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Senior backend engineer specializing in scalable systems and integrations.

Singapore

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What I'm looking for

I am seeking backend or platform roles where I can build scalable systems, lead integrations, work with cloud-native stacks, and deliver measurable business impact in collaborative, product-focused teams.

I am a results-driven software engineer with five years of backend development experience, primarily focused on scalable systems, third-party integrations, and payment flows. At Agoda I delivered end-to-end whitelabel solutions, payment integrations, and a Booking Verification Service that reduced discrepancies by 30%.

I have a strong track record of driving measurable business impact, including creating a new revenue stream for a bank partnership and implementing payouts that captured fees and rewards. My background includes building high-throughput microservices, supplier API integrations, and systems that improved operational efficiency.

I collaborate closely with cross-functional teams and leverage a broad tech stack—Scala, Kotlin, Go, Java, Kafka, Kubernetes, AWS, and observability tools—to deliver production-grade solutions focused on reliability, cost savings, and performance.

Experience

Work history, roles, and key accomplishments

Software Engineer

Agoda

Nov 2020 - May 2025 (4 years 6 months)

Developed end-to-end whitelabel and payments solutions (including Agoda-issued Mastercards and USBank integration) that created new revenue streams and built a Booking Verification Service that reduced booking discrepancies by 30%.

Scala Kotlin Java Kafka Docker Kubernetes GraphQL gRPC AWS Redis

Graduate Backend Engineer

Grab Holdings

Jan 2020 - Jun 2020 (5 months)

Built a Customer Experience Chat System that delivered $2M/year in cost savings and improved agent efficiency by 30% through chatroom, participant, and media APIs backed by AWS DynamoDB and S3.

Go gRPC AWS DynamoDB S3 Lambda Kafka Redis Terraform REST APIs

Intern Backend Developer

Autodesk

Jul 2019 - Dec 2019 (5 months)

Improved and maintained a high-traffic microservice to enhance security and audit compliance, contributing to platform stability and operational observability.

C++.NET Core Python Docker PostgreSQL Redis Jenkins Splunk