Increasing the machine size (vertical scaling) has a physical limit and a cost that explodes. And a single big server remains a single point of failure.
Horizontal scaling adds instances in parallel, behind a load balancer. Capacity follows demand, up and down.
Shared state, externalized sessions, a right-sized database: we review every link so it can multiply.
Stateless services, multipliable at will.
Spread the load across N instances.
Follow demand automatically.
A database that handles the target throughput.
5 to 10 days to map the existing setup and quantify the starting point, read-only.
A concrete action plan, at a fixed price, with gains and risks set down in black and white.
We execute with your engineers, in days, not quarters.