A few recent jobs, told without names: our clients stay confidential, the figures do not.
Optical fiber, March 2026
A link between a distribution cabinet and an access cabinet had to be restored. We redid the splices in the fiber tray and documented every single one.
Copper cabling, May 2026
New network outlets between the offices and the floor cabinet, in shielded Cat.6A cable. Every outlet was tested and handed over with its own sheet: wire map, length, result.
Radio links, hilltop site
A site that distributes connectivity from high ground: router and sector radios powered at 48 V, with surge protection that, up a mountain, is not an optional extra.
Business software, 2026
Long-standing installations on CentOS 6 are moving to Rocky Linux 9: data, configuration and links to other programs moved onto a base that still receives updates, one installation at a time.
Monitoring
The monitoring system could not read the data of the new generation of Wi-Fi controllers. Rather than wait, we wrote the missing piece: a small C program that queries the controllers and hands Zabbix the state of access points and clients.
Operator networks
An operator has to apply the blocks ordered by the regulator, and fast. The lists are fetched every 15 minutes and turned into RPZ zones, one per source; the IP addresses to block go into a BGP blackhole. Nobody has to remember to do it by hand.
Embedded, prototype under test
A LoRa radio node that must stay on where there is no power: an ESP32-S3 with LoRa radio, a solar panel, an MPPT charge controller and a four-cell LiFePO4 battery.