Serverless Computing
Serverless computing is a cloud delivery model where the provider fully manages the server infrastructure. Developers write functions that execute on demand and are billed only for actual usage. Servers still exist — but their management, scaling, and maintenance are handled automatically by the cloud provider.
Why does this matter?
Serverless eliminates infrastructure overhead: no server administration, no capacity planning, no costs during idle time. For mid-sized businesses, this is especially attractive for applications with fluctuating load — such as seasonal webshop peaks or API endpoints for partner integrations that only incur costs when used.
How IJONIS uses this
We use Vercel Serverless Functions and AWS Lambda for API endpoints, webhooks, and background processes. For compute-intensive tasks like image processing or AI inference, we leverage specialized serverless platforms. Pay-per-use billing significantly reduces costs for projects with unpredictable load.