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Backend Engineer with 2+ years of experience building high-scale FinTech and payment systems at Ant International (Alipay). Specialized in Java, Spring Boot, microservices, and distributed transaction systems supporting e-wallets and cross-border payments. Experienced in designing reliable, fault-tolerant backend services, handling high-throughput transactions, and collaborating with global, distributed teams. Strong understanding of payment flows, system scalability, and compliance-driven architectures.…Backend Engineer with 2+ years of experience building high-scale FinTech and payment systems at Ant International (Alipay). Specialized in Java, Spring Boot, microservices, and distributed transaction systems supporting e-wallets and cross-border payments. Experienced in designing reliable, fault-tolerant backend services, handling high-throughput transactions, and collaborating with global, distributed teams. Strong understanding of payment flows, system scalability, and compliance-driven architectures.

Lim Choon Kiat

Back-End Developer, Full Stack Developer, Web Developer, +2

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Backend Engineer with 2+ years of experience building high-scale FinTech and payment systems at Ant International (Alipay). Specialized in Java, Spring Boot, microservices, and distributed transaction systems supporting e-wallets and cross-border payments. Experienced in designing reliable, fault-tolerant backend services, handling high-throughput transactions, and collaborating with global, distributed teams. Strong understanding of payment flows, system scalability, and compliance-driven architectures.…Backend Engineer with 2+ years of experience building high-scale FinTech and payment systems at Ant International (Alipay). Specialized in Java, Spring Boot, microservices, and distributed transaction systems supporting e-wallets and cross-border payments. Experienced in designing reliable, fault-tolerant backend services, handling high-throughput transactions, and collaborating with global, distributed teams. Strong understanding of payment flows, system scalability, and compliance-driven architectures.

Available to hire

Backend Engineer with 2+ years of experience building high-scale FinTech and payment systems at Ant International (Alipay). Specialized in Java, Spring Boot, microservices, and distributed transaction systems supporting e-wallets and cross-border payments.

Experienced in designing reliable, fault-tolerant backend services, handling high-throughput transactions, and collaborating with global, distributed teams. Strong understanding of payment flows, system scalability, and compliance-driven architectures.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Work Experience

Backend Software Engineer at Ant International (Alipay)

September 1, 2024 - Present

Contributed to large-scale microservices projects in E-Wallet (Alipay) and payment networks (Alipay+) using Spring Boot, Message Queue, Scheduler, and MySQL. Led a team of 2 backend engineers to deliver a customer support chat workflow with notification features, integrating ReactJS, Spring Boot, and MySQL. Redesigned scheduler task workflows, achieving a 20% reduction in API call costs.

Associate Consultant - Java Backend Developer at InnoQB Sdn Bhd

December 1, 2023 - August 1, 2024

Refactored and optimized 400+ APIs to ensure compatibility with client’s new e-commerce project. Actively participated in daily scrum meetings, providing progress updates and contributing to technical discussions for enhancements and user requirements. Resolved production issues promptly, ensuring system stability and minimizing downtime.

Software Engineer Intern at Malaysia Social Entrepreneur Foundation (MSEF)

June 1, 2023 - October 1, 2023

Collected user requirements and created use cases to support effective technical solutions. Redesigned and documented UI/UX workflows for the organization’s websites using Figma and Microsoft Word, improving usability and clarity.

Software Engineer Intern at CrimsonLogic Malaysia Sdn Bhd

October 1, 2022 - January 1, 2023

Modified and tested existing test code for 50+ test cases and perform regression automation testing using Selenium.