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Alex Rivera

author

Bootcamp grad who made it to Senior Engineer at a Series B startup. Alex writes honestly about the struggles and strategies of career transitions into tech.

5 articles

Articles by Alex Rivera

I Got Rejected for Staff Twice. Here's What Finally Worked.
technology

I Got Rejected for Staff Twice. Here's What Finally Worked.

Got rejected for staff engineer twice before figuring out what committees actually evaluate. Here's the 18-month timeline and packet strategy that worked.

ARAlex RiveraDecember 8, 20259 min read
How I Got My Staff Engineer Promotion in 90 Days (After Stalling for 2 Years)
career

How I Got My Staff Engineer Promotion in 90 Days (After Stalling for 2 Years)

I stalled at senior for 2 years before treating my promotion like a 90-day project. Here's the exact audit, evidence, and sponsor strategy that worked.

ARAlex RiveraDecember 8, 20257 min read
We Had No Plan, No Alignment, and No Runway. I Stayed Anyway.
technology

We Had No Plan, No Alignment, and No Runway. I Stayed Anyway.

I ignored 6 obvious red flags and watched $400K in equity vanish. Here's the startup evaluation checklist I wish I'd had before signing.

ARAlex RiveraOctober 17, 20259 min read
I Thought I Was Getting Lazy. Turns Out I'd Outgrown My Job.
technology

I Thought I Was Getting Lazy. Turns Out I'd Outgrown My Job.

I kept flagging problems nobody asked me to find. Turns out that friction wasn't me overstepping. It was sign #2 that I'd already outgrown my role.

ARAlex RiveraOctober 5, 202511 min read
I Spent $2,000 on Learning Platforms After Pluralsight. Here's What Actually Challenged Me.
technology

I Spent $2,000 on Learning Platforms After Pluralsight. Here's What Actually Challenged Me.

Pluralsight's "advanced" courses felt like review. After spending $2K testing alternatives, O'Reilly's live events and book access actually pushed me forward.

ARAlex RiveraApril 17, 20259 min read
Alex Rivera | Blog Core