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KUNAL BABBAR
Mid-level Full-Stack Engineer specializing in AWS serverless and secure web applications
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JavaScript full-stack engineer with experience at EY building secure, cloud-ready React/Node.js applications on AWS and currently at startup Juego Juegos owning the AWS backend and CI/CD via AWS Amplify. Demonstrated impact through performance tuning of a React analytics dashboard (reduced initial load time ~20%) and resolving real payment failures by debugging Stripe 3DS flows and updating AWS Lambda plus frontend error handling.
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Key Strengths
- Performance optimization using profiling to identify hot paths
- Backend/API redesign to reduce sequential calls and over-fetching (aggregate endpoint)
- React rendering optimization (memoization) and server-side pagination for large tables
- Production troubleshooting using logs/metrics (CloudWatch) and staging reproduction
- Payments debugging and remediation for Stripe 3DS errors across backend and frontend
- Ownership of AWS backend and CI/CD setup (AWS Amplify) in an unstructured startup environment
- Developer-friendly documentation with validation by having another dev follow from scratch
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