Side-by-side hiring data for Bun and Deno - salary bands, ecosystem skills, what each engineer actually ships, and how to brief Haystack for either.
JS engineers who ship serious services on Bun, not just hello-world benchmarks.
JS engineers who use Deno for secure-by-default TypeScript services on the edge.
Both Bun and Deno have active talent pools on Haystack. We see first shortlists for Bun and Deno land within 24 hours of kick-off, with the median Bun hire closing in 14-21 days alongside comparable Deno roles.
Mid-level Bun engineers anchor around £70k–£90k UK base, with seniors reaching £95k–£135k. Deno 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.
For Bun we look for working experience with Bun, TypeScript, Hono. For Deno the equivalents are Deno, Deno Deploy, Fresh. Both ecosystems get surfaced on every Haystack profile so you can filter on exact tooling.
Often yes - particularly when both stacks live in the same category (Backend vs Backend). 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.
Pick on hiring depth, your team's current strengths and the ecosystem fit. Bun suits bun-based http services and tooling; Deno suits edge services on deno deploy and cloudflare-compatible runtimes. We can shortlist both in parallel so you can interview against the same brief.
Yes - the full ladder from junior through staff/principal in both Bun and Deno. The kick-off call captures the level and shipped-work bar you need, and shortlists are filtered accordingly.
Pairs other teams considered alongside this one.
Tell us the role, level and salary band. We'll send shortlists for either stack within 24 hours.
