Hi, I'm Ekkachai K.

Full Stack Software Engineer — I build systems that process
Million+ orders/year

Based in Bangkok, Thailand with 10+ years experience building scalable e-commerce systems for companies like Shopee and Lazada. Specialized in React, TypeScript, Node.js, and AWS cloud architecture delivering high-performance solutions that handle millions of transactions.

Technical Lead Full Stack • Software Engineer React • TypeScript • AWS Cloud Architecture Bangkok
View My Work
Full Stack Software Engineer - Ekkachai K. Portfolio Illustration
Million+
Orders/Year
Orders processed annually across Shopee, Lazada, TikTok Shop
50%
Sync Faster
Reduction in sync delays through event-driven architecture
35%
AWS Saved
Infrastructure cost reduction through optimization
48→24h
SLA Improved
Ship-by SLA improvement, reducing penalties

Work Experience

MC Group E-Commerce Backbone

MC Group (SET-listed)
Challenge: Scale omnichannel operations across Shopee, Lazada, TikTok Shop with real-time inventory sync
Solution: Event-driven integration architecture connecting ERP, WMS, POS, and loyalty systems
Node.jsAWSDockerEvent-DrivenZebra RFIDMicroservices
Results:
  • Million+ orders/year automated
  • 50% faster sync
  • 35% AWS cost reduction
  • 48h → 24h marketplace SLA compliance

Junior System Analyst / Programmer

Ayudhya Capital Services (Krungsri)
Challenge: Design applications for consumer finance products in hybrid environment
Solution: End-to-end application design supporting financial product workflows
System AnalysisTechnical SpecsCode ReviewFinancial Systems
Results:
  • Technical specs from business requirements
  • Code review implementation
  • Financial product workflow support

AIG Digital Transformation

ADI Asia Co.,Ltd.
Challenge: Legacy system migration, marketing automation, and dealer document management for insurance operations
Solution: Multi-platform integration connecting LINE, Facebook, Salesforce, Adobe AEM, and nationwide dealer portal
C#REST APIAdobe AEM 6.5SalesforceLINE BCRMReactNode.js
Results:
  • Automated lead generation
  • Real-time CRM sync
  • Legacy MS Access migration
  • Nationwide dealer document submission portal

Software Developer

Ayodia Company
Challenge: Build custom ERP and web solutions for SME clients with onshore-offshore coordination
Solution: Full-stack development with Thailand onsite and offshore team coordination
ASP.NET MVCC#VB.NETSQL ServerAngularJS
Results:
  • Custom ERP solutions delivered
  • Onshore-offshore team coordination
  • SME client web applications

Software Developer

P.N.L. Co., Ltd.
Challenge: Develop full-stack web and desktop applications covering full SDLC
Solution: ASP.NET MVC development from requirements to deployment
ASP.NET MVC 5C#MS SQL 2008Entity Framework
Results:
  • Full SDLC implementation
  • Database design and development
  • Web and desktop applications

Featured Projects

Shuttrsnap - Auto Receipt Tracker

Hobby Project
Challenge: Small businesses need simple way to track payments via QR PromptPay and receipt slips
Solution: Mini SaaS that auto-captures receipts and summarizes income in 1 minute
QR PromptPayOCRAuto-captureSaaS
Results:
  • Instant QR PromptPay generation
  • Auto receipt capture
  • 1-minute income summary
Visit Project
Shuttrsnap - Auto Receipt Tracker - Dark Theme Screenshot Shuttrsnap - Auto Receipt Tracker - Light Theme Screenshot

Ask Assistant - AI Knowledge Base for CS Teams

Hobby Project
Challenge: CS agents struggled to find accurate information fast enough during live chats and phone calls, leading to slow responses and inconsistent answers
Solution: AI-powered knowledge base that lets CS staff instantly query internal docs and policies — no memorization, no digging through manuals
Claude AIReactJSTypeScript
Results:
  • Faster response times during live customer interactions
  • Reduced onboarding time for new CS agents
  • More consistent and accurate answers across the team
Ask Assistant - AI Knowledge Base for CS Teams - Dark Theme Screenshot Ask Assistant - AI Knowledge Base for CS Teams - Light Theme Screenshot

Tech Stack

Expert

C#Node.jsReact.jsAWSDocker

Proficient

MongoDBEvent-DrivenMicroservicesCI/CDMS SQL Server

Specialized

Shopee APILazada APITikTok ShopRFID IntegrationISO 27001PDPAAmazon Q

Let's Work Together

Bangkok, Thailand
10+ years in software engineering
B.Sc. Information Technology
Microsoft Certified C# Programming Badge Microsoft Certified: Programming in C#

Currently: Technical Lead @ MC Group
Focus: E-commerce integration, cloud architecture, AI-assisted development

kiwsanthia@gmail.com linkedin.com/in/kiwsan github.com/kiwsan