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Title: Sabbir Ahmed Shourov

Open Graph Title: Sabbir Ahmed Shourov

X Title: Sabbir Ahmed Shourov

Description: Senior Backend Engineer specializing in APIs, microservices, and DevOps β€” sharing real-world projects and lessons in backend engineering. Robotics & AI enthusiast πŸ€–

X Description: Senior Backend Engineer specializing in APIs, microservices, and DevOps β€” sharing real-world projects and lessons in backend engineering. Robotics & AI enthusiast πŸ€–

Opengraph URL: https://extinctcoder.github.io/page2/

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Links:

https://extinctcoder.github.io/
Sabbir Ahmed Shourovhttps://extinctcoder.github.io/
HOME https://extinctcoder.github.io/
PROJECTS https://extinctcoder.github.io/projects/
ARCHIVES https://extinctcoder.github.io/archives/
CATEGORIES https://extinctcoder.github.io/categories/
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https://github.com/extinctCoder
https://www.linkedin.com/in/extinctCoder
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Database Indexing for Engineers: What to Index and Why Queries Still ScanA backend engineer's mental model for database indexing β€” what to index, the leftmost-prefix rule, and why a query still does a full scan. Nov 12, 2025 Backend, Databases https://extinctcoder.github.io/posts/database-indexing-for-engineers/
Idempotency: Designing APIs and Consumers That Survive RetriesHow to design APIs and message consumers that survive retries safely β€” idempotency keys, HTTP semantics, and idempotent consumers. Sep 10, 2025 Backend, Distributed Systems https://extinctcoder.github.io/posts/idempotency-apis-and-consumers/
Scaling a Django Backend to 170K Concurrent UsersHow to scale a Django backend to 170K concurrent users β€” stateless services, autoscaling, load balancing, and protecting the database. Jan 20, 2025 Backend, Performance https://extinctcoder.github.io/posts/scaling-django-backend-to-170k-users/
When to Break a Django Monolith into MicroservicesWhen to break a Django monolith into microservices β€” and how, with the strangler pattern, an API gateway, and a database per service. Aug 15, 2024 Backend, Architecture https://extinctcoder.github.io/posts/break-django-monolith-into-microservices/
Designing a Workflow Engine with Automated and Manual PathsDesigning a workflow engine for processes that mix automation, human steps, and retries β€” using an explicit state machine, not tangled conditionals. Dec 5, 2023 Backend, Architecture https://extinctcoder.github.io/posts/workflow-engine-automated-and-manual-paths/
Postgres Full-Text Search vs Elasticsearch: How to ChooseA practical framework for choosing search β€” start with PostgreSQL full-text, and move to Elasticsearch only when requirements demand it. Oct 8, 2023 Backend, Data Engineering https://extinctcoder.github.io/posts/postgres-fulltext-vs-elasticsearch/
Building a Resilient Web-Scraping PipelineBuilding a resilient web-scraping pipeline: per-source spiders, hash-based incremental crawls, proxy rotation, and data-quality gates. Jul 12, 2023 Backend, Data Engineering https://extinctcoder.github.io/posts/resilient-web-scraping-pipeline/
Real-Time Fleet Control with MQTT over mTLSBuilding real-time fleet control with MQTT over mutual TLS β€” push not poll, per-device identity, and local-first enforcement. Feb 14, 2022 Backend, Security https://extinctcoder.github.io/posts/real-time-fleet-control-mqtt-mtls/
A Dynamic, Versioned Policy Engine: Evaluate Locally, Manage CentrallyDesigning a policy engine where rules are data: authored and versioned centrally, evaluated locally so decisions stay instant and offline-safe. Nov 10, 2021 Backend, Security https://extinctcoder.github.io/posts/dynamic-versioned-policy-engine/
Modeling Dynamic Approval Chains from an Org HierarchyHow to model approval workflows that resolve dynamically from your org hierarchy β€” so a reorg never means a code change. Jun 20, 2021 Backend, Architecture https://extinctcoder.github.io/posts/modeling-dynamic-approval-chains/
https://extinctcoder.github.io/
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Wiring Obsidian to a Static Site with GitHub Actionshttps://extinctcoder.github.io/posts/wiring-obsidian-to-a-static-site-with-github-actions/
Making the Pipeline Run Itselfhttps://extinctcoder.github.io/posts/making-the-pipeline-run-itself/
Real-Time Fleet Control with MQTT over mTLShttps://extinctcoder.github.io/posts/real-time-fleet-control-mqtt-mtls/
When to Break a Django Monolith into Microserviceshttps://extinctcoder.github.io/posts/break-django-monolith-into-microservices/
What Actually Renders in an RSS Feedhttps://extinctcoder.github.io/posts/what-actually-renders-in-an-rss-feed/
automationhttps://extinctcoder.github.io/tags/automation/
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Sabbir Ahmed Shourovhttps://www.linkedin.com/in/extinctCoder
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