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Vishaal Karthik

Building the parts of mobile apps most users never see but every production release depends on.


🧩 3.5+ yrs production RN 📦 11K+ npm downloads ☁️ AWS · Azure · Oracle certified

role:      Software Engineer, Mobile @ Workhall
based:     Coimbatore, India 
stack:     React Native · TypeScript · iOS · Android · Node.js
focus:     Mobile architecture
certified: AWS Cloud Practitioner · Azure Fundamentals · Oracle Multicloud Architect

What I work on

I'm a React Native engineer with 3.5+ years shipping production iOS and Android apps, focused on mobile architecture, code quality, and security. I care about the parts of a codebase that don't demo well — component systems that scale past three developers, CI/CD that doesn't need a maintainer on standby, and security postures that hold up against real third-party audits.

Impact, in numbers

Metric Result
ESLint issues resolved 2,000+ → 0 across the codebase
Hotfix turnaround Days → same-day via custom OTA pipeline
Files touched per new component 3 → 1 via self-registering ComponentRegistry
Security findings closed 12+ OWASP Mobile Top 10 items from a third-party pen test
Open-source reach 11,000+ combined npm downloads across 2 packages

Selected work at Workhall

🧱 ComponentRegistry architecture Self-registering Map-based system that cut files touched per new component from 3 to 1. Proposed, prototyped, and led team-wide adoption.

🏗️ Two-build architecture Migration to separate bundle IDs, Firebase projects, and OAuth clients for Production vs. Internal — safe internal testing without risking production releases.

⚡ OTA update pipeline Cut production hotfix turnaround from days to same-day by bypassing full App Store / Play Store review cycles for JS-only fixes.

🔒 VAPT remediation Closed out 12+ OWASP Mobile Top 10 findings from a third-party pen test — insecure session-cookie storage, exposed WebView debugging, and more.

🧹 Code quality push Reduced 2,000+ ESLint issues to zero across the codebase; led team's SonarQube remediation effort measurably improving reliability metrics.

🔗 Deep linking overhaul Custom URI scheme plus web choice-page architecture, deployed across multiple production domains on both iOS and Android.

Certifications

Open source

rn-rich-text-editor — Production-ready rich text editor for React Native. Rich formatting, media embeds, smart HTML paste, and a fully customizable toolbar. Native WebView-backed for performance. 10,500+ downloads · MIT

react-native-geocodex — Forward and reverse geocoding for React Native using OpenStreetMap. No API key, TypeScript-first, RN-native. 600+ downloads · MIT

Toolbelt


By the numbers


Recent activity

  1. 🎉 Merged PR #1 in vishaal2002/react-native-board-view
  2. 💪 Opened PR #1 in vishaal2002/react-native-board-view
  3. 💪 Opened PR #1949 in Ndifreke000/stellar-insights
  4. 💪 Opened PR #3 in Ishwarya-4/Hearth
  5. 🎉 Merged PR #2 in Ishwarya-4/Hearth

Contribution graph
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📬 Let's talk

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