Roman Glushko

I dissect real‑world tech - open‑source platforms, microservices, system programming, distributed systems, multi-agent AI workflows, algorithms - and simplify them for engineers and curious minds.

• HackerNews Top 10

What's OAuth2 Anyway?

Jan 26, 2025 • 44 min read

Why the OAuth2 protocol was designed the way it is and how it works.

• authorization
• security
• standards

Papercups: Customer Service Platform

Sep 30, 2024 • 36 min read

Designing a customer support platform with live chat features similar to Zendesk or Intercom.

• open source
• architecture
• platform
• communication
• javascript
• elixir

• KubeWeekly#391

OTel Collector

Jun 16, 2024 • 20 min read

Telemetry Processing as a Service with OTel Collector

• open source
• architecture
• observability
• golang

I explore this world, unpack its systems, and capture my reflections. These are my thoughts on leadership, personal development, team dynamics, and mindset.

Buy, Open Source, Build

Jul 10, 2023 • 9 min read

When to buy, build or use open source solutions?

Promotion Paradoxes

Oct 31, 2021 • 6 min read

Every promotion makes you closer to being low performer

Sunday Morning Problem

Jul 4, 2021 • 1 min read

Take advantage of consistency