Hoanh Le Kien. 🚀 Founder of kam.dev · Full-stack Developer (7+ Yrs). Helping SMBs digitize their operations with custom dashboards, management tools & SaaS.
Technical Core
2015 - 2017
Software Engineering
2017
Website Developing
Founded kam.dev to help small and medium-sized businesses go digital: consulting on how to digitize their operations, building management dashboards and internal tools, and delivering custom SaaS products tailored to each business.
Built and maintained software for European clients, focusing on modern web stacks and international standards.
Developed full-stack tourism platforms and management tools for high-volume booking systems. Also served as a team leader, coordinating development efforts.
Dec 2025 - May 2026
Off-the-shelf tools like Jira did not match the client's internal processes, so teams needed a project management system shaped around how the business actually works, available on both desktop and mobile.
Built a custom Jira-style platform on a shared Laravel API that powers both a Next.js web app and a React Native mobile app, keeping features and data consistent across devices.
Sep 2023 - Nov 2025
Managing complex multi-tenant data isolation while allowing customizable recruitment workflows and white-label branding for multiple organizations.
Architected a scalable multi-tenant schema with a flexible workflow builder and headless GraphQL API, reducing CV processing time by 40% and improving recruitment efficiency by 35%.
Aug 2022 - Aug 2023
Instantly calculating underwriting points and matching insurance packages based on extensive health and financial profiles, processing 500+ applications daily.
Developed an intelligent matching engine with optimized risk evaluation algorithms, improving calculation accuracy by 25% and reducing processing time from 5 minutes to under 30 seconds.
Sep 2021 - Aug 2022
Reconstructing a major tourism platform serving 10,000+ monthly users while integrating CRM, booking, and documentation into a unified system.
Built a unified full-stack solution with automated Zalo notifications and secure payment gateways, increasing page load speed by 45% and boosting online bookings by 60%.
Sep 2020 - May 2021
Removing 15+ outdated legacy features and improving system performance while implementing new booking tools for 5000+ monthly active users.
Upgraded core capabilities with WiFi booking services and streamlined payment links, increasing revenue by 25% and reducing transaction processing time by 50%.
The Challenge: Visualizing analytics dashboard in real-time for international marketing teams.
Built a streamlined blog platform for H.I.S. Philippines with integrated Google Analytics API, increasing content traffic by 40% and enabling real-time performance tracking for 50+ articles.
The Challenge: Multilingual customer scheduling for international spa clientele.
Comprehensive booking and management system supporting 3 languages, processing 300+ bookings monthly with automated reminders reducing no-shows by 30% and improving resource allocation efficiency by 45%.
The Challenge: Scalable tour availability tracking for high-traffic booking platform.
Online tour booking platform processing 1000+ transactions monthly with Onepay payment integration, reducing booking errors by 50% and improving trip coordination efficiency for 200+ tour operators.