Daniel Hartwell

Covers backend systems, distributed architecture, and database performance. Contributing author at NextGenBeing.

Articles: 28
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Member since: Oct 2025

Articles by Daniel Hartwell

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Data Science

Quick Wins for Improving Application Security: Battle-Tested Strategies from the Trenches

Real security improvements that take hours, not months. Learn the high-impact fixes we implemented after our security audit revealed critical gaps—complete with code, metrics, and lessons learned the hard way.

May 26, 2026 · 27 min read

Data Science

Code Quality in Production: Hard Lessons from Scaling to 50 Million Requests

Real strategies from debugging production disasters, refactoring legacy systems, and maintaining code quality under pressure at scale

May 1, 2026 · 34 min read

Data Science

Advanced Tutorial: Implementing Real-Time Updates with WebSockets

Learn how we scaled WebSocket connections to 500K concurrent users while reducing server costs by 40%. Real production patterns, load testing results, and the gotchas nobody talks about.

Apr 18, 2026 · 37 min read

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Daniel Hartwell

Articles by Daniel Hartwell

Quick Wins for Improving Application Security: Battle-Tested Strategies from the Trenches

Code Quality in Production: Hard Lessons from Scaling to 50 Million Requests

Advanced Tutorial: Implementing Real-Time Updates with WebSockets

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