Question 1

Is JavaScript or TypeScript easier to hire for in 2026?

Accepted Answer

Both JavaScript and TypeScript have active talent pools on Haystack. We see first shortlists for JavaScript and TypeScript land within 24 hours of kick-off, with the median JavaScript hire closing in 14-21 days alongside comparable TypeScript roles.

Question 2

What does a JavaScript developer cost vs a TypeScript developer?

Accepted Answer

Mid-level JavaScript engineers anchor around £60k–£80k UK base, with seniors reaching £85k–£120k. TypeScript engineers sit around £70k–£90k mid and £95k–£135k senior. German bands run 5-20% higher in EUR and US bands 40-50% higher in USD.

Question 3

Which ecosystem libraries should I screen for - JavaScript or TypeScript?

Accepted Answer

For JavaScript we look for working experience with TypeScript, Node.js, React. For TypeScript the equivalents are React, Node.js, Next.js. Both ecosystems get surfaced on every Haystack profile so you can filter on exact tooling.

Question 4

Can the same engineer cover both JavaScript and TypeScript?

Accepted Answer

Often yes - particularly when both stacks live in the same category (Languages vs Languages). On Haystack we let you require both as primary or secondary skills; senior generalists typically carry one as their main stack and one as supporting.

Question 5

Should I bet on JavaScript or TypeScript for a greenfield project?

Accepted Answer

Pick on hiring depth, your team's current strengths and the ecosystem fit. JavaScript suits browser apps with vanilla js or framework code; TypeScript suits end-to-end type-safe apis with trpc, graphql code generator or openapi. We can shortlist both in parallel so you can interview against the same brief.

Question 6

Do you cover senior and staff JavaScript and TypeScript engineers?

Accepted Answer

Yes - the full ladder from junior through staff/principal in both JavaScript and TypeScript. The kick-off call captures the level and shipped-work bar you need, and shortlists are filtered accordingly.

Dimension	JavaScript	TypeScript
Category	Languages	Languages
Mid-level UK base	£60k–£80k	£70k–£90k
Senior UK base	£85k–£120k	£95k–£135k
Best for	Browser apps with vanilla JS or framework code	End-to-end type-safe APIs with tRPC, GraphQL Code Generator or OpenAPI
Core ecosystem	TypeScript, Node.js, React, Vue	React, Node.js, Next.js, tRPC
First shortlist	24 hours	24 hours

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