RAJANAND ILANGOVAN
rajanand.org
RAJANAND ILANGOVAN
@rajanand.org
Lead Data Engineer ==> Data Architect
https://rajanand.org/substack
Pinned
Hello,

I’m using this space to share how I think about work.

Not tools.
Not hacks.

Frameworks, mental models, and ways to turn execution into real impact.

If you’re good at what you do but feel stuck in task mode, this will be for you.
Every data pipeline is a bet.
Not a bet about tools, a bet about how the system will fail.

Most engineers build for the happy path:
API up. Schema stable. Volume reasonable.
That’s not where production systems live.
January 1, 2026 at 7:40 PM
Your pipeline is not broken; your assumptions are.
rajanand.substack.com/p/your-pipe...
January 1, 2026 at 7:25 PM
A common mistake mid-level professionals make:
They think decisions are about being right.

Senior decisions are rarely about correctness.
They’re about constraints.
January 1, 2026 at 2:56 PM
Hello,

I’m using this space to share how I think about work.

Not tools.
Not hacks.

Frameworks, mental models, and ways to turn execution into real impact.

If you’re good at what you do but feel stuck in task mode, this will be for you.
January 1, 2026 at 8:54 AM