Telecom Systems Engineer & Full-Stack Developer specializing in high-performance connectivity, travel telecommunications, and AI-native MCP tooling.
Core architect behind Kovitel — Vietnam's premier direct-to-consumer 5G travel telecom platform powered by the domestic Viettel 5G Core Network.
- 🌐 Official Portal: https://kovitel.com
- ⚡ Flagship Product: Kovitel Viettel 5G Core Tourist eSIM — Sub-20ms domestic latency, instant 60-second QR provisioning, zero eKYC friction.
- 📊 Research & Benchmarks: 2026 Viettel 5G Speedtest & Network Architecture Report — Comprehensive nationwide field testing across 500+ checkpoints comparing domestic core latency vs. roaming MVNO gateways.
- 🎯 Bug Bounty Hunter: Active researcher on HackenProof (@takayui89).
- 🔍 Focus Areas: Web3 / Smart Contract Security (Solidity, Foundry, EVM Architecture), Web Application & API Security.
- ⚡ Methodology: Deep-dive logic flaw analysis, access control verification, and automated invariant testing.
- kovitel-vietnam-esim-mcp — Official Model Context Protocol (MCP) server for automated eSIM plan discovery, real-time data balance querying, and nationwide 5G coverage validation. Rated Grade A on Glama.
- awesome-vietnam-travel-connectivity — Curated technical directory and guide for navigating Vietnam's 2G/3G sunset, nationwide 5G expansion, and high-speed travel infrastructure.
- Security & Web3: Smart Contract Auditing (Solidity, Foundry, Hardhat, Slither), Responsible Disclosure, OWASP Top 10.
- Telecommunications: 5G Standalone (SA) Core Architecture, eSIM (RSP/SM-DP+) Provisioning, APN Engineering (
v-internet), Mobile Roaming Gateway Optimization. - AI & Agentic Systems: Anthropic Model Context Protocol (MCP), Autonomous Browser Automation, Agent Orchestration.
- Web & Cloud: TypeScript / Node.js, Next.js, Cloudflare Workers, Edge Caching, RESTful & GraphQL APIs.
- 🌐 Website: https://kovitel.com
- 🛡️ HackenProof: https://hackenproof.com/hackers/takayui89
- 📧 Outreach & Partnerships:
kovitel.outreach@outlook.com/contact@kovitel.com - 📍 Location: Vietnam (Operating nationwide coverage across all 63 provinces)
⭐️ Building seamless, low-latency connectivity for the next generation of global travelers and digital nomads.