I'm Pakornpat Amornlertpanit, a backend-focused software engineer who works on production systems for payments, POS integrations, API integrations, and real-time data processing.
I moved into software engineering from hospitality, where I led service teams, coordinated with guests and cross-functional departments, and handled real-time issues. I bring that practical service mindset to engineering work: understand the user, communicate clearly, and ship maintainable fixes.
Recently, my work has involved Node.js, TypeScript, Java, Kafka, MySQL, AWS, Docker, XML/JSON transformation, encryption/decryption workflows for KYC, and debugging production issues from logs.
- Developed and maintained backend services related to payment systems and
transaction processing
- Worked with API integration using Postman and external client systems
- Handled XML/JSON transformation and encryption/decryption workflows
(KYC-related)
- Migrated legacy applications from Java 8 / Tomcat 8 to Java 17 / Tomcat
10.1, updating dependencies and application configuration for compatibility
- Investigated and debugged production logs to resolve real-time issues
- Built backend services using Node.js and TypeScript for POS-related
systems
- Integrated Kafka for event-driven architecture and real-time data
processing
- Designed scalable APIs and handled high-volume data (store-level
operations)
- Worked with AWS services and containerized environments (Docker)
- Led front desk operations and supported team members to deliver consistent guest service
- Coordinated directly with guests and cross-functional hotel teams to resolve service issues
- Managed Executive Lounge operations and coordinated guest requirements with internal teams
- Supported and developed service staff while maintaining a high standard of guest experience
I adapt quickly to new domains, systems, teams, and technologies.
I read logs, payloads, and edge cases carefully before changing production behavior.
I work across engineering, operations, clients, and support teams to resolve real business issues, drawing on earlier experience leading hospitality teams and coordinating customer needs.
My hospitality background helps me communicate calmly and focus on the people affected by the system.
I break problems down, verify assumptions, and look for fixes that stay maintainable.
I prioritize incidents, project work, and stakeholder requests with clear follow-through.
Tools and areas I use to build, integrate, and operate backend systems.
Node.js, TypeScript, Java, Express, Spring
REST APIs, external clients, Postman, XML/JSON transformation
Kafka, real-time processing, store-level data flows
MySQL, query debugging, data validation
AWS, Docker, containerized environments
Log investigation, incident debugging, encryption/decryption workflows