Founded and shipped a multi-tenant CRM SaaS built on PHP, JavaScript, and MySQL — serving 5 offices, 54 users, and 323 sub-agents, with 11,200+ leads and 13,779+ enrolled students managed in production.

• Implemented async API operations for all CRUD and status-change actions, reducing response times from ~2–4s to ~300–600ms via preloaded reference data and SQL indexing and query optimization.

• Designed an audit logging system capturing before/after field diffs, user identity, timestamp, and operation type — eliminating data loss risk from user errors and providing a complete change history for compliance and debugging.

• Built a three-tier RBAC system (admin / employee / sub-agent) with per-user, operation-level permissions, scoped data visibility, and financial data isolation — supporting both full CRM access and a read-only partner portal via unique secure links.

• Built a per-sub-agent lead capture system with unique landing pages, UTM parameter tracking (source, campaign, medium, term), customizable auto-reply emails, and automatic commission attribution on application financials.

Contracted by the SBVI program to build and maintain production websites for startup and small-business clients.

• Built a reusable Bootstrap + PHP/JS CMS supporting SEO fields, form submissions, brand and color controls, navigation CRUD, and WYSIWYG custom pages — deployed across 9 client sites.

• Managed the full project lifecycle (requirements through 12-month post-launch support) for 9 clients, delivering each engagement in approximately 30 hours from kickoff to launch.

Selected as course staff for UC Berkeley's software engineering course (CS169A), supporting 35 student teams through Rails-based full-stack development, agile workflows, testing, and debugging.

• Built scripts to automate GitHub repository provisioning and consistency checks for all 35 student teams, cutting per-semester setup time from 3 hours to 15 minutes and eliminating manual errors.

Full-stack developer responsible for building, integrating, and maintaining internal web tools and third-party platform connections.

• Integrated a SQL Server-based ERP accounting system with Shopify and OpenCart, automating invoice entry for hundreds of daily transactions and eliminating approximately 1 minute of manual entry per invoice.

• Built a custom ticketing and attendance system with automated certificate issuance from verified check-ins, cutting post-event fulfillment from several hours to minutes.

• Automated post-event attendee processing, reducing per-entry throughput from ~30–45s to ~5s and cutting required staffing from 3–4 employees to 1 monitor.