- Engineered and maintained core functionalities of the payment gateway, ensuring robust and reliable transaction processing- Designed scalable backend systems to support high-volume payment transactions with minimal latency and downtime- Developed and integrated APIs to enable seamless payment processing across various platforms and services- Ensured compliance with financial regulations and security standards, including PCI DSS, to safeguard sensitive payment data- Optimized the gateway's performance through advanced caching, database tuning, and workflow enhancements, improving transaction throughput- Built and deployed features for fraud detection, risk assessment, and secure payment authentication- Diagnosed and resolved critical issues in production environments, ensuring continuous availability and customer satisfaction- Collaborated with cross-functional teams to implement client-specific payment solutions tailored to unique business requirements

- Proficient in designing software solutions for both microservices and monolithic architectures- Developed microservices APIs using the .NET Core Framework and integrated relevant middleware tools to optimize functionality and performance- Successfully developed and fine-tuned auto-suggestion features by leveraging advanced Search Engine tools- Maintained CMS-based websites on the Sitecore platform, proactively addressing bug fixes, and implementing feature enhancements- Delivered effective technical solutions to clients, resolving diverse post-production issues and ensuring client satisfaction- Authored and implemented various scripts to enhance development productivity and streamline processes- Demonstrated proficiency in middleware tools, including Caching, Event Hub, Message Broker, Cron, ORM, Search Engine, and Monitoring, to support robust application development- Collaborated closely with Amazon Web Services (AWS), gaining hands-on experience in hosting and infrastructure management- Acquired expertise in relevant DevOps technologies, including Docker, Kubernetes, and CI/CD tools, to facilitate efficient development and deployment processes- Proficient in Bash and PowerShell scripting for automation and system management- Acquired valuable experience in Web Security, ensuring the integrity and security of web applications- Gained extensive experience working with SQL databases, optimizing data storage and retrieval processes

- Collaborated with SIX team in upgrading ITB's Academic Information System- Contributed in building report generator