Career and Experience

SeoSang Hyun has built his career primarily in backend development through experience at multiple companies.

From 2018 to 2021, at Company V, he developed crawlers, building management systems, and a university information-sharing site using Ruby, React, and AWS.

From 2021 to 2025, at Company G, he developed image management systems, a travel ERP, and a pet-friendly travel site using Golang, AWS, and Kubernetes.

From 2025 to 2026, at Company D, he handled travel ERP development using Golang, AWS, and Kubernetes.

Currently, as Server-Side Engineer at MASSIVE LINKS Inc., he handles backend API development, AWS environment construction (including cost optimization and security design), and Kubernetes infrastructure operations including design, monitoring, and version upgrades.

Through backend development experience across multiple companies, he has accumulated cross-domain expertise in API design and infrastructure architecture.

Expertise and Track Record

• Backend API Development: Design and implementation of RESTful / GraphQL APIs across business domains
• AWS Design and Operations: Comprehensive cloud operations including environment construction, cost optimization, and security design
• Kubernetes Design and Operations: k8s cluster design, monitoring, and version upgrade operations
• Golang / Ruby: Implementation experience across multiple languages

His strength lies in translating complex domain requirements into systems, drawing on travel ERP development experience at two separate companies.

External Communications

He does not currently engage in individual external communications. Official communications are conducted through MASSIVE LINKS via this website.

Affiliation and Contact

SeoSang Hyun serves as Server-Side Engineer at MASSIVE LINKS Inc., writing articles in the backend, AWS, Kubernetes, and infrastructure domains. Employment relationship: Employee.

Contact via the contact form.

SeoSang Hyun

Server-Side Engineer