APICHAI SORAYAN
Solo Developer
Summary
Professional Solo Developer delivering End-to-End solutions from business requirement analysis to deployment. Specialized in helping SMEs & Clinics transition from manual workflows to cost-optimized automation. Experienced in working directly with executives to translate complex technical concepts into measurable business results.
Core Skills
Education
Master of Business Administration (MBA)
Krirk University • Present
Bachelor of Engineering
Railway System Engineering
University of the Thai Chamber of Commerce
GPA 2.91
Languages
Soft Skills
- Strategic Problem Solving
- Project Management
- Effective Communication
- Team Leadership & Mentoring
Key Success
- Transformed manual operations into automated digital systems for multiple SMEs.
- Optimized cloud infrastructure costs by 40% using Serverless & Edge technology.
- Developed custom CRM that reduced admin overhead by 30% and boosted sales efficiency.
- Delivered high-stake clinical booking systems with 100% project delivery rate.
Professional Experience
End-to-End System Design & Implementation
JUNE 2025–PRESENTRattinan Clinic (Single Developer)
- Acted as sole developer for end-to-end solution design, development, and deployment.
- Developed Room Booking System with real-time Google Calendar synchronization.
- Built Lead Entry System using Cloudflare Workers and D1 for high-performance data handling.
- Implemented technical SEO and performance optimizations for system responsiveness.
- Managed infrastructure and CI/CD using Cloudflare Pages, Workers, D1, and R2 Storage.
Software Engineer - Business Systems Development
FEB 2025–JUNE 2025Unit Company Limited
- Designed multiple internal business systems including centralized Case Management.
- Built an E-Tax System with digital documentation and automated submission.
- Implemented Campaign Management System with tracking and performance analytics.
- Developed Insurance System focusing on customer data and policy tracking.
Software Engineer - CRM & Serverless Solutions
JULY 2024–FEB 2025Krungsri Auto
- Maintained CRM system using Vue.js, Python, DynamoDB, and AWS Lambda.
- Designed serverless business logic to improve system scalability and efficiency.
- Implemented CI/CD pipelines using GitLab for reliable deployments.
Key Projects
Advanced Medical Booking System
Complex appointment system for miraDry & Ultherapy with doctor timeline views and multi-stage procedure logic.
Enterprise-Grade CRM Platform
Custom CRM for clinic management with client profiles, booking history, and real-time data synchronization.
Technical Stack
FRONTEND
Vue, Next.js, React, HTML5, CSS3, JavaScript (ES6+), Tailwind, Framer Motion
BACKEND & DATABASE
Golang, Node.js (Express, Hono), Python, .NET Core, PostgreSQL, MongoDB, D1
PLATFORM & INFRA
AWS, Google Cloud, Cloudflare, ReadyIDC, Linux, VPS, Serverless
Strategic Developer Value
Business-first Engineering
I don't just write code; I design systems that solve specific operational pain points. Experienced in translating executive visions into actionable technical blueprints.
Custom Workflow Architecture
Deep-diving into daily operations to build "tailor-made" tools that align with actual staff behavior, replacing manual bottlenecks with automated, error-free systems.
Efficient Resource Management
As a solo developer, I focus on maximum consistency and rapid agility, leveraging cost-effective Serverless & Edge technologies (Cloudflare/AWS) to maximize business ROI.
Legacy-to-Digital Transformation
Expertly auditing legacy/manual processes (Excel/Paper) and engineering robust digital platforms that are secure, scalable, and future-ready.