“Pure JavaScript is great until someone breaks production with a string where a number was supposed to be.”
This issue of Redeployed is brought to you by Tecla: TypeScript didn’t trend. It took over. Today’s teams aren’t hiring for familiarity, they're hiring for fluency. Tecla helps you hire senior nearshore engineers who build in TS by default, not as an option. From full stack apps to AI-integrated workflows, these are developers who already speak the language your codebase is moving toward.
The dev world didn’t wake up one morning and decide to switch. It just slowly stopped hiring JavaScript developers.
According to recent LinkedIn commentary and recruiting data, 2026 is the year TypeScript stopped being a preference and became a prerequisite. Shopify, Stripe, and nearly every major tech org that contributes to the frontend ecosystem has now either migrated fully or ships new services in TS by default.
That trend is no longer just a signal. It is the standard.
Why It Happened
This wasn’t about hype. It was about velocity and safety at scale. TypeScript brought the kind of compile-time guardrails teams used to get from strict backend languages, without forcing them to leave the frontend ecosystem.
It let product engineers move faster without QA taking the hit. It made refactors less terrifying. And as AI tools started auto-generating more code, having type constraints became not just useful, but critical.
No one wants to debug an AI-written helper function without types.
The Full Stack Is Now Typed
It’s not just React and UI logic. We’re seeing demand for TypeScript across infrastructure too. Node APIs. Serverless functions. Edge logic. Even in AI pipelines where LangChain, tRPC, and Prisma are becoming common, TypeScript is the glue.
In Tecla’s recent placement data, over 80% of full stack role requests asked for TypeScript by name. Not JavaScript. Not “JavaScript or TypeScript.” Just TS.
Teams are hiring for TypeScript fluency. Not just familiarity.
At Tecla, we’ve seen the shift firsthand. Nearly every full stack role we fill now starts with one requirement: production-level TypeScript.
That’s why we help U.S. tech teams hire senior-level LATAM engineers who don’t just write TS, but build real systems with it. From Next.js and tRPC to AI-integrated workflows using LangChain and Prisma, these are developers who know how to ship.
Faster ramp. Lower cost. Your time zone.
The Hiring Shift
The language filter has quietly become a proxy for codebase maturity. CTOs know that if you’re writing production code in vanilla JS in 2026, it’s probably either legacy or unstructured.
That doesn’t mean JS is gone. It means TypeScript won.
And if you’re hiring, building, or shipping in the current cycle, your engineers either already know TS or they’re about to learn fast.
More to come…
– Gino Ferrand, Founder @ Tecla