Serverless
A cloud model where the provider runs the servers. Developers upload small functions and pay only when they execute.
What it tells you about a developer
Serverless experience says a developer has shipped cloud code with the operating burden handled by the provider, and thinks about cost per request rather than machines. It is common at startups and on small teams. Deep serverless work carries its own craft: cold starts, per-request pricing, and stateless design. A developer who also has long-running server experience brings a wider range for a role that needs both.
In a serverless setup, developers write functions and hand them to a cloud provider, which runs them on demand and bills per use. Nobody on the team manages servers, patches operating systems, or plans capacity. AWS Lambda started the category in 2015, and Cloudflare Workers and Vercel run on the same idea. It suits event-driven work and small teams.