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criston.dev

Criston Mascarenhas

/ˈkrɪstən mæskəˈrɛnjəs/

Senior Software Engineer

Criston Mascarenhas is a senior software engineer building useful software across the stack — developer tools, SaaS platforms, native apps, automation systems, and small products that solve real workflow problems.

Shipped apps and product experiments.

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A11yInspect app icon

Chrome extension · BarrierBreak

A11yInspect

Real-time WCAG accessibility testing inside the browser, on live production pages.

Automated rules engine with in-page code highlighting, heading and tab-order visualization, and color contrast checks — built for accessibility audits at production scale.

Shipped at BarrierBreak. Live on the Chrome Web Store.

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A11yNow app icon

Accessibility testing platform · BarrierBreak

A11yNow

Browser-driven automated accessibility engine with versioned WCAG rule mappings.

Playwright-based DOM traversal and computed-style analysis, an extensible rule framework, historical trend data, and a hybrid workflow pairing machine detection with human validation.

Shipped at BarrierBreak. Enterprise accessibility platform.

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ZeroPDF library icon

TypeScript PDF library

ZeroPDF

Zero-dependency TypeScript library for generating, tagging, and editing accessible PDFs.

A small public API for building accessible documents — tagged PDF helpers, semantic structure trees, image alt text, metadata, annotations, outlines, attachments, and browser-friendly Uint8Array output.

Built in my free time. Used in production at BarrierBreak.

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Before Meeting app icon

macOS menu bar app

Before Meeting

A macOS menu bar app that keeps your next meeting from sneaking up on you.

Live countdowns, calendar-aware reminders, and a gentle pre-meeting panic button for people who vanish into deep work.

Clean mac menu bar utility for people who forget time exists.

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StackWatch app icon

Android server monitoring app

StackWatch

Privacy-first server monitoring and control for Linux boxes, straight from your Android phone.

SSH-native metrics, Docker controls, alerts, widgets, logs, files, and terminal access with no cloud relay sitting in the middle.

Android control room for servers, containers, alerts, and quick fixes when you are away from your desk.

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