For more than 15 years, our founders have been designing, building, and operating private mobile core software — not in labs, but in real production networks powering enterprises, mission-critical industries, and government deployments.
This experience isn't theoretical. It's been earned under pressure, at scale, and in environments where uptime isn't optional.
Our team's mobile core journey began at Athonet, where we were principal engineers for early commercial deployments of private LTE and 5G. We helped enterprises and operators worldwide launch and run networks that needed to work — reliably, continuously, and without compromise.
In 2023, after Athonet was acquired by Hewlett Packard Enterprise, we chose to start fresh — taking everything we've learned and building a product that reflects decades of operational insight.
That product is SendBuffer.
Carlo spent over ten years at Athonet, where he was one of the main contributors to the core network software product — engineering the platform that powered private mobile network deployments for enterprises and governments. His background is deep systems: Linux kernel networking, eBPF, and high-performance packet processing. At SendBuffer, Carlo drives product vision and company strategy.
Umberto joined Athonet in its early days and spent fifteen years as a core engineer on the full stack — from 3GPP protocol implementation to control plane signaling to the high-throughput user plane. He works where performance is won or lost — protocol implementation, deterministic behavior under load, systems that stay up when everything around them fails. At SendBuffer, Umberto leads engineering.
After fifteen years building mobile core software for large organizations, we had a clear picture of what was missing in the market: a product designed for operators who need real private network infrastructure — without the complexity, the overhead, and the price tag that come with enterprise vendors.
There is a difference between a system that runs in a lab and a system that keeps a mine operational at three in the morning. We have built both, and we know what that difference costs. SendBuffer is built on that experience — close to the metal, simple to operate, and designed to stay up when everything around it fails.
We are a small team. We move fast. We build only what matters.
