Matthew Mercado Software engineer · Full-stack & AI
I build full-stack software for the real world.
Web applications, AI-enabled systems, and integrations for escape rooms, VR venues, and ambitious products.
01 / Frontend
Frontends people can trust.
Fast, accessible web applications turn complicated workflows into something clear for customers and teams.
02 / Backend
Backends built to hold up.
APIs, authentication, data, background jobs, and operational safeguards work together behind the interface.
03 / Applied AI
AI becomes part of the product.
From analytics exploration to content review, AI supports real workflows with structured evidence and a person responsible for the final decision.
04 / Integrations
Then software meets the rest of the operation.
Payments, bookings, messaging, storage, analytics, and external APIs become dependable workflows instead of isolated features.
Selected work
Built for the real world.
Products measured by what happens after launch: faster teams, steadier sessions, and better guest experiences.
02SAAS PLATFORMWaiver DirectorMulti-tenant product · active build
03WEB ENGINEERINGEscape This Frederick2× conversion · Lighthouse 97
04DESIGN & FRONTENDLevel Up VR#1 local search position
05CREATIVE DEVELOPMENTPortfolio ExperienceResponsive 3D · React + Three.js
About Matthew
From the first sketch to the final relay.
I lead with full-stack software engineering, building web applications and AI systems from interface to infrastructure—with experience in the physical systems they sometimes control.
- Full stack
- React, Next.js, Node.js, Convex, PostgreSQL, product architecture
- Applied AI
- Agentic APIs, LLM evaluation, structured generation, MCP servers
- Physical
- Arduino, Raspberry Pi, PLCs, sensors, fail-safe controls
Selected experience
Engineering across products, platforms, and teams.
Full resumeBuilding and maintaining software for Department of Defense programs in my current full-time role.
Leading product architecture and engineering for a multi-tenant waiver operations platform with secure signed records, integrations, and AI-assisted content review.
Built and launched a full-stack escape-room management platform with real-time operations, evidence-backed analytics with AI-assisted exploration, billing, and offline reliability.
Redesigned the customer experience, doubled conversion, reduced bounce rate by 35%, and built software and electronic puzzle systems for live rooms.
Mentored roughly 100 Computer Science I and II students in Java, Python, debugging, and practical problem-solving.
Improved React and Redux analytics interfaces, built dynamic link unfurling in PHP, and expanded automated QA coverage with Cucumber and WebdriverIO.