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NewInteractive Engineering Notes

I build tools and systems that stay boringly reliable.

Sahan Serasinghe

Seasoned technical lead and solutions architect, building reliable systems at scale and internal tools that improve developer experience.

56
Published notes
10
Deep-dive series
Since ’19
Writing in public
30K+
Monthly readers, August 2026

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A fresh post, a reader favourite and one useful find from the archive.

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distributed systems

Introduction to gRPC

What gRPC is, how Protocol Buffers and HTTP/2 fit together, and when it beats REST or WebSockets for service-to-service calls.

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Follow a thread

Guided paths through connected ideas, in the order they make the most sense.

04

5 parts

gRPC

The notebook

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Practical engineering notes, without the inbox noise.

Notes on distributed systems, resilient software, and engineering in the real world - usually once or twice a month.

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