Work
PHP, Python and TypeScript across backend services, data pipelines and infrastructure.
Airflow
ClickHouse
AWS
Python
Docker
PHP
JS/TS
MORIS FINKEL
Backend systems.
Data pipelines.
Production reality.
Senior software engineer with 15+ years of experience designing systems, shaping architecture and solving production problems across backend, data and infrastructure — with a bias toward reliability, simplicity and boring predictability.
Notes
Short technical write-ups about bugs, architecture decisions, data systems and things worth remembering.
Open notes →Approach
Simple code, explicit trade-offs, measurable results. KISS, DRY and SOLID where they help — not as religion.
LATEST WRITING
Notes & articles
The Migration That Succeeded Every Time and Never Finished
A billion-row ClickHouse type migration, an unnecessary tour of manual DDL, and the difference between a green deploy and a converged schema.
Godzilla in Production: From Chaos to Ground Rules
How to introduce code style, engineering guidelines and CI/CD into a project that grew faster than its engineering practices.
Merge Is Not a Release
Four pull requests can be one feature. Deploying each one separately does not magically make four safe releases.
100% Code Coverage. What Did We Actually Test?
A green report means little when the code's error paths are missing from the tests.