Experience
& Journey
A overview of my professional growth and roles
Location: Chiang Mai, TH
Frontend Developer
Developed and maintained frontend systems using HTML, CSS, JavaScript, and Razor for CMS platforms (Kentico, Umbraco), including both website UI and backoffice. Built widgets and landing pages, fixed UI bugs, and supported legacy systems. Developed modern web applications with Next.js and integrated backend APIs. Collaborated with Frontend and Backend teams, aligned API contracts with Backend Lead, and validated APIs using Postman and Swagger. Identified, tracked, and coordinated resolution of API issues.
Part-Time / Freelance Web Developer
Gathered and analyzed client requirements to design and develop responsive websites aligned with business goals. Enhanced UX with motion design and micro-interactions. Managed deployment, hosting, and SEO optimization. Handled website improvements based on client change requests (CR). Migrated websites from WordPress to new platforms with SEO-preserving redirects. Set up Google Ads and implemented Google Tag Manager (GTM) for tracking and analytics.
Business Analyst
Analyzed and gathered business requirements, designed system workflows, UI, and functionality for web-based applications. Prepared documentation including workflows, application flows, mockups, specifications, and test scripts. Reviewed and tested system workflows to ensure alignment with requirements prior to delivery, collaborated with developers and PMs, and conducted user training sessions.

Sahasawat Rueankaew (สหัสวรรษ เรือนแก้ว) is a Web Developer from Chiang Mai, Thailand. สหัสวรรษ เรือนแก้ว เป็นนักพัฒนาเว็บไซต์ Full Stack Developer และ Founder ของ BSynth
// A personal chibi-style avatar modeled from my own character. - Created by Sahasawat Rueankaew (สหัสวรรษ เรือนแก้ว)
- • Designed for portfolio showcase