Sonsawan Ngamsom
Junior Backend Engineer
Curious and enthusiastic Backend Engineer with hands-on experience in Go, Java, cloud technologies, and backend system design. Passionate about exploring new technologies, solving real-world challenges, and building scalable microservice architectures.
About Me

Hello! I'm Sonsawan, a passionate Backend Engineer based in Bangkok, Thailand. I specialize in building scalable microservice architectures using Go, Java, and cloud technologies.
Currently working at ONIFY TECH, I've gained hands-on experience in developing e-commerce backends, booking platforms, and re-architecting monolithic systems into containerized microservices on AWS.
I'm excited about fintech and enterprise environments, always eager to learn rapidly and implement innovative solutions that enhance software reliability and performance.
Work Experience
- •Built a multilingual e-commerce backend integrated with Odoo ERP, enabling real-time inventory tracking and streamlined order processing for 100+ items
- •Developed backend APIs for a two-sided booking platform using Supabase (PostgreSQL), enabling real-time bookings, notifications, and availability tracking
- •Re-architected a monolithic budgeting system into containerized microservices on AWS ECS, adding RBAC and audit logging, improving scalability and system modularity
- •Designed scalable hosting architecture based on Elastic Beanstalk for a client experiencing significant growth and slow response times
- •Described proposed architecture in plain language ensuring client understood functionality and cost calculations
- •Provided mentorship and guidance to learners on the MERN Stack (MongoDB, Express.js, React.js, Node.js)
- •Shared technical insights, answered questions, and offered practical assistance for complex concepts
- •Empowered learners to develop MERN Stack skills through ongoing support and encouragement
Skills & Technologies
Programming Languages
Backend & Frameworks
Cloud & DevOps
Databases
Frontend & Tools
Architecture & Concepts
Professional Projects

Microservices architecture platform for sustainable fashion with Spring Boot & Go backend, ReactJS frontend, and comprehensive AWS cloud stack including Amplify, Cognito, RDS, and S3.
Key Features:
- •Secure user authentication and item listing
- •Independent scaling and faster development
- •CI/CD pipelines via GitHub Actions
- •Agile development tracked in Jira

Java Spring Boot microservices architecture for scalable patient record handling, secure authentication, and medical data processing, streamlining healthcare management workflows.
Key Features:
- •Scalable patient record handling
- •Secure authentication system
- •Medical data processing
- •Healthcare workflow optimization

Backend chat board built using pure Go standard library, optimizing real-time message handling, concurrency, and low latency for seamless user communication.
Key Features:
- •Pure Go implementation
- •Real-time message handling
- •Optimized concurrency
- •Low latency communication
Let's Connect
Ready for new opportunities
I'm always interested in exciting backend engineering opportunities, especially in fintech and enterprise environments. Whether you want to discuss a project, collaboration, or just say hi, feel free to reach out!