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I am Giant, a Senior Full-stack Engineer with 8+ years of experience, specializing deeply in frontend architecture and performance. I combine deep frontend expertise with comprehensive full-stack capabilities, enabling me to own the entire software development lifecycle from 0-to-1. Proven track record of leading technical initiatives, delivering AI and SaaS products, and scaling systems supporting 12K+ stores and 25M+ daily transactions.…I am Giant, a Senior Full-stack Engineer with 8+ years of experience, specializing deeply in frontend architecture and performance. I combine deep frontend expertise with comprehensive full-stack capabilities, enabling me to own the entire software development lifecycle from 0-to-1. Proven track record of leading technical initiatives, delivering AI and SaaS products, and scaling systems supporting 12K+ stores and 25M+ daily transactions.

Giant Wang

Full Stack Developer, Software Engineer, Front-End Developer, +1

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I am Giant, a Senior Full-stack Engineer with 8+ years of experience, specializing deeply in frontend architecture and performance. I combine deep frontend expertise with comprehensive full-stack capabilities, enabling me to own the entire software development lifecycle from 0-to-1. Proven track record of leading technical initiatives, delivering AI and SaaS products, and scaling systems supporting 12K+ stores and 25M+ daily transactions.…I am Giant, a Senior Full-stack Engineer with 8+ years of experience, specializing deeply in frontend architecture and performance. I combine deep frontend expertise with comprehensive full-stack capabilities, enabling me to own the entire software development lifecycle from 0-to-1. Proven track record of leading technical initiatives, delivering AI and SaaS products, and scaling systems supporting 12K+ stores and 25M+ daily transactions.

Available to hire

I am Giant, a Senior Full-stack Engineer with 8+ years of experience, specializing deeply in frontend architecture and performance. I
combine deep frontend expertise with comprehensive full-stack capabilities, enabling me to own the entire software development lifecycle from 0-to-1. Proven track record of leading technical initiatives, delivering AI and SaaS products, and scaling systems supporting 12K+ stores and 25M+ daily transactions.

Skills

Experience Level

Expert

Expert

Expert

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Expert

Expert

Intermediate

Work Experience

Senior Software Engineer at KDAN

May 1, 2025 - June 1, 2026

Led 0-1 architecture and launch of Adnex-AI using Next.js, FastAPI, and GCP. Implemented multi-tenant RBAC for enterprise-grade security and agile workflows, improving sprint velocity by 25%. Reduced LLM TTFR by 80% (<1s) using SSE streaming, increasing user session duration by 23%. Built reusable MCP tools across three cross-functional business units, cutting AI feature integration time by 30%.

Senior Software Engineer (Consultant) at Inborns Inc.

May 1, 2025 - June 1, 2026

Senior Software Engineer at Inborns Inc.

May 1, 2024 - June 1, 2026

Partnered with CEO/CTO to define product roadmap and architecture for Coskeeper (0-to-1), aligning technical execution with key business metrics. Delivered a scalable MVP using Next.js, NestJS, and GCP Cloud Run. Enhanced AI UX for a 3-minute analysis flow via SSE streaming and async LINE notifications, supporting 32k+ tokens and improving retention by 22%. Integrated LINE LIFF and official account workflows for 100+ active users to increase engagement and retention.

Senior Front-end Developer at DotDot Inc.

March 1, 2023 - May 1, 2024

Architected a Vue-based Idoo POS platform supporting 12,000+ stores and 25M+ daily transactions. Reduced page load times for QuickClick (8s to 4s) via route-based code splitting and resource prioritization, increasing conversion rates by 15%.

Senior Front-end Developer at LatticeFi

December 1, 2021 - March 1, 2023

Launched LatticeFi, a React-based B2B bond trading platform from scratch, focused on high-performance data handling for financial professionals. Optimized large-scale data rendering for 10k+ row tables by using virtualization and memoization, reducing rendering time by 60%.

Co-founder & Full-stack Developer at MeMin Inc.

December 1, 2021 - December 1, 2024

Scaled the engineering organization from 2 to 14 members and designed scalable architecture for Jundoo to support rapid product iteration. Architected React/NestJS full-stack system and PostgreSQL data model, managing AWS deployment to support 1,500+ players; enabled securing NT$3M in crowdfunding.

Front-end Developer at Cloud Interactive

September 1, 2020 - September 1, 2021

Mentored 3 junior engineers while delivering React/Angular solutions for Cathay Healthcare, BTOX, and DKSH. Improved team efficiency by 40% through a standardized component library and development workflows.

Front-end Developer at GE MING

February 1, 2018 - August 1, 2020

Built and modernized an internal Angular CMS from v2 to v8. Improved unit test coverage to 70% using Karma and reduced page load time by 40%.