Konstantin

@C0nstanta

Joined January 2026

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Senior Software Engineer working on backend systems, data pipelines, and demand forecasting.

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C0nstanta Engineeringc0nstanta.hashnode.dev2 posts

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Crash-safe JSON at scale: atomic writes + recovery without a DB

Jan 5 · 15 min read · canonical URL: https://dev.to/constanta/crash-safe-json-at-scale-atomic-writes-recovery-without-a-db-3aic 1. Why we're still using JSON files in 2025 This system runs on Alpine Linux under Gunicorn. It manages 60+ retail stores today (roadmap: 300+),...

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Near real-time Server Logs in a Flask Dashboard

Jan 1 · 6 min read · Originally published on DEV.to:https://dev.to/constanta/real-time-server-logs-in-a-flask-dashboard-21ad I built an inventory system for warehouse operators. Non-technical people. When something breaks, the conversation goes like this: "It's not work...

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Konstantin

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Available for

Konstantin's blogs

Recently published

Crash-safe JSON at scale: atomic writes + recovery without a DB

Near real-time Server Logs in a Flask Dashboard

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Konstantin

About

Available for

Konstantin's blogs

Recently published

Crash-safe JSON at scale: atomic writes + recovery without a DB

Near real-time Server Logs in a Flask Dashboard