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/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.
Chrome extension · BarrierBreak
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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Accessibility testing platform · BarrierBreak
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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TypeScript PDF library
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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macOS menu bar app
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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Android server monitoring app
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.
View Product© 2026 Criston Mascarenhas
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