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Justin Gruen
Senior Full-Stack Engineer specializing in modern web applications
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About
Full-stack developer with seven years of experience who has built production systems across AWS serverless infrastructure, Django applications, and user-facing web products in domains like emergency response, fintech/investing, recruiting, and conference management. Particularly notable for combining technical architecture with product thinking—e.g., modernizing a crash-tracking platform for emergency responders and materially improving trust-driven conversion in a trading-card fractionalization product.
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Key Strengths
- End-to-end AWS data pipeline ownership
- Cross-layer debugging with CloudWatch observability
- Performance and reliability design for production systems
- Strong decoupled architecture instincts
- UX trust-building that improved conversion from 1 in 500 to 1 in 100
- Rapid iteration using user behavior analytics
- Reusable API abstraction across multiple Django models
- Thoughtful handling of immutable/deactivated data workflows
- Multi-tenant schema and permissions design
- Experience building configurable survey/form systems
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