# Criston Mascarenhas > Senior software engineer building reliable products, developer tools, browser automation, SaaS, and native applications. Canonical Origin: https://criston.dev ## Pages - [Work | Criston Mascarenhas](https://criston.dev/work): Senior software engineer building accessibility platforms, developer tools, and shipped products — b... - [Criston Mascarenhas | Senior Software Engineer](https://criston.dev): Senior software engineer building accessibility platforms, developer tools, and shipped products — b... - [About | Criston Mascarenhas](https://criston.dev/about): Senior software engineer building accessibility platforms, developer tools, and shipped products — b... - [Myna Notes | Criston Mascarenhas](https://criston.dev/work/myna-notes): Senior software engineer building accessibility platforms, developer tools, and shipped products — b... - [Before Meeting | Criston Mascarenhas](https://criston.dev/products/before-meeting): Senior software engineer building accessibility platforms, developer tools, and shipped products — b... - [Experience | Criston Mascarenhas](https://criston.dev/experience): Senior software engineer building accessibility platforms, developer tools, and shipped products — b... - [Criston Mascarenhas | Senior Software Engineer](https://criston.dev/): Senior software engineer building accessibility platforms, developer tools, and shipped products — b... - [Why We Built Our Own Accessibility Engine (And What "Accuracy" Really Means) | Criston Mascarenhas](https://criston.dev/writing/why-we-built-our-own-accessibility-engine): Most accessibility scanners sort the world into violations and passes. We think that's the wrong mod... - [Building a Production-Grade Accessibility Scanning Platform | Criston Mascarenhas](https://criston.dev/writing/building-a-production-grade-accessibility-scanning-platform): An architectural deep-dive into A11yNow — the distributed web accessibility auditing backend I built... - [StackWatch | Criston Mascarenhas](https://criston.dev/products/stackwatch): Senior software engineer building accessibility platforms, developer tools, and shipped products — b... - [A Safe Masked UAT Refresh Pipeline with Dokploy and Greenmask | Criston Mascarenhas](https://criston.dev/writing/safe-masked-uat-refresh-pipeline-dokploy-greenmask): How I set up a repeatable PostgreSQL UAT refresh flow that reads production, masks sensitive data wi... - [Writing | Criston Mascarenhas](https://criston.dev/writing): Articles and notes on software engineering, product craft, and developer tools. - [Uses | Criston Mascarenhas](https://criston.dev/uses): Senior software engineer building accessibility platforms, developer tools, and shipped products — b... - [Building a Scalable Browser Automation Platform for Accessibility Scanning | Criston Mascarenhas](https://criston.dev/writing/scaling-browser-automation-for-accessibility-scanning): Page pooling, LRU-cached browser instances, multi-auth, stealth, and adblock — all in one Node.js se...