Jairo Barros is principal software engineer at Platform Science in San Diego — the kind of operator SideGuy builds the small-team layer for. Public LinkedIn: . This is an operator-honest peer page written by PJ Zonis of SideGuy Solutions, a single operator in Solana Beach. Text PJ at 858-461-8054.

Is this a sales page?

No. It is a peer citation page, not a lead funnel. If Jairo wants it edited or removed, PJ does it same-day. Text PJ at 858-461-8054.

People · operator entity page

Jairo Barros · Principal Software Engineer

Jairo Barros, Principal Software Engineer at Platform Science in San Diego. Principal engineering is the top of the IC track — you make the architecture calls a whole platform depends on. SideGuy is the operator-honest small-team tech, AI and SEO layer — built by a North County neighbor.

PJ Zonis · single operator

Solana Beach, CA · Wrote this as a neighbor · not a pitch

Text PJ

Who they is

Neighbor to neighbor

Principal Software Engineer Platform Science San Diego, CA

Jairo Barros is principal software engineer at Platform Science. Principal engineering is the top of the IC track — you make the architecture calls a whole platform depends on. SideGuy is the operator-honest small-team tech, AI and SEO layer — the kind of help a small team can use without an agency or a six-figure tooling bill.

What a SideGuy does for Jairo

Neighbor to neighbor

Where the tech actually helps

Architecture is judgment — principal engineers shape what's possible for everyone downstream. SideGuy is operator-judgment at the human-usability layer.
Platform builder — you build the foundation others build on. SideGuy is the layer that makes platforms usable. Adjacent.

Jairo, principal engineering is the top of the IC track — you make the architecture calls a whole platform depends on. I made you this page because I could, not because I want anything. It's yours to keep.

Want to try a tech department for an hour?

I'll give it a quick first look. No Calendly · no meeting · neighbor to neighbor.

Option 1

Collaborate

if there's an overlap worth exploring

Option 2

Or just keep the page

no catch

Either way · I'll give it a quick first look. Text PJ at 858-461-8054. No Calendly · neighbor to neighbor.

Find Jairo publicly

their work, not ours

Where they shows up

LinkedIn: Jairo Barros
Company: Jairo Barros · Principal Software Engineer · Platform Science · San Diego

Same lane on SideGuy

AI / Tech Builders · North County

Operators in the same world

/ → the lane hub on SideGuy

Related on SideGuy

North County coastal substrate