Open to freelance, part-time and fractional engineering work. Scope, weekly hours and start date are agreed per engagement.
01
Profile
15+ years of experience across web development, website security and Linux infrastructure, including troubleshooting, integrations, maintenance and recovery for WordPress, Magento and custom applications. Founder of VMCSoft Digital and Lead Engineer at ViWeb Technology, its web services line.
02
Case studies
02.1
Recovering 30+ client websites after a server compromise
Anonymous client · Investigation, rebuild and recovery
I investigated and recovered a compromised production server hosting 30+ client websites. Services returned to normal within an eight-hour recovery window, with no known data loss after reconciling newer updates.
With evidence of root-level access and unauthorized system changes, I preserved the affected server for investigation and rebuilt it with a clean operating system. I restored the previous day’s Amazon S3 backups and recovered newer updates from the full backup taken before the rebuild.
Before returning services to normal, I checked restored files for malware, verified website and database functionality, confirmed the patched kernel was running and rotated affected credentials and access keys. The investigation also found a patch activation gap on the compromised server: an installed kernel update had not been activated by a restart. Kernel exploitation remained a suspected escalation route. I asked the monitoring and sysadmin team to develop alerts for pending updates, required restarts and security issues.
I designed, built and deployed this LiveChat.com integration and operate its Cloudflare support runtime, separate from the client’s website hosting. It maintains conversation state, retrieves website knowledge, supports multilingual replies and screenshot context, and hands conversations to human support when needed.
A separate rendering service prepares website content for the knowledge pipeline. I added duplicate suppression, bounded requests and checks around replies and human handoffs.
Operator-reported estimates: approximately 1,000 conversations per month, with 30% resolved without human handoff.
A small software studio and portfolio of web tools and Android utilities. I handle technical scoping, development and maintenance.
Built KeyND’s API-heavy e-commerce automation for digital software-license transactions. That business line concluded in mid-2024.
Apr 2023 - Present
Lead Engineer
ViWeb Technology
Provide hands-on engineering and website troubleshooting for VMCSoft Digital’s web services line.
Manage 3 web servers, including 2 supporting 10 websites for Vietnam Dragon Travel, covering maintenance, security and backups.
Manage additional servers for Pacific Wise.
Jul 2023 - Oct 2026
DevOps Engineer
iCreationsLab | Singapore | Remote | Part-time
Worked on infrastructure architecture, security and complex troubleshooting across 20+ servers supporting an estimated 200+ websites. Day-to-day operations were shared with the team across Magento 2, WordPress, WHM/cPanel and AWS environments.
Through iCreationsLab, supported websites for organizations including Kuok Group, NHG Health and Singapore Heart Foundation.
Supported hacked-site cleanup, server hardening, backup checks, access review and operational recovery.
Built and troubleshot backend features and integrations.
Sep 2020 - Dec 2020
Part-time Freelancer | DevOps Engineer
DataHouse Asia
Supported cloud-backed health, campus, and community information products.
Worked on OHA IamKanaka, an information collection and publishing platform for Hawaiian communities.
Supported LumiSight Campus SMUSD and LumiSight Kauai Complex self-screening platforms.
Magento 1/2, WordPress, Shopify API, cPanel / WHM, Linux
Security and operations
Incident response and malware cleanup, Hardening, edge security and access review, Monitoring, backups and recovery, Deployment automation
Infrastructure
Server architecture, Cloudflare-native and serverless architecture, Docker, AWS (EC2, Lightsail, Lambda, SES, SQS, DynamoDB), Azure
AI-assisted engineering
Cursor, OpenHands and Codex for implementation, troubleshooting and code review, GPT and Claude for exploring technical options, Gemini evaluated for first-line support, Review and testing of AI-assisted changes
Open-source Android DNS changer with DNS-over-HTTPS, split tunneling, and quick controls. 5K+ downloads on Google Play (as of October 2026). GitHub source. Google Play listing.
Experimental open-source Rust CLI for running local development processes with explicit expiry, bounded logs and resource readings. Includes a portable agent skill for Codex and Claude Code. GitHub source.
Experimental agent skill for choosing a writer and independent reviewers from a personal profile, with a public research and experiment journal. The Codex-led pilot has not established general productivity gains or reliable automatic routing. GitHub source.
Experimental open-source Markdown convention and reusable agent skill for maintaining project knowledge across AI sessions. Public source and evaluation notes document its scope and limitations. GitHub source.
AI-assisted evaluation of next-step decisions in fictional website incidents, with paired scenarios, reproducible scoring, public Kaggle evidence and explicit limitations. Not a production-safety certification.
Sample apps
Small self-initiated Replit demos of specific workflows, not client deployments or production operating results.
Agency/client workflow demo for requests, estimates, approvals and delivery, built with React, TypeScript, Express and PostgreSQL. Fictional data, with simulated payments and notifications.