SYSTEMS / CAPABILITY MAP

Depth at the boundaries between systems.

The useful part is not a list of tools. It is being able to follow a failure as it moves from one layer into another.

Embedded & Firmware

Device firmware, audio pipelines, hardware integration, provisioning and lifecycle engineering.

ESP32-S3ESP-IDFESP-ADFFreeRTOSC/C++I2S / I2CAudio codecsWi-Fi provisioningOTAE-paperHardware bring-up

Signaling, media paths and distributed call debugging across endpoints and telephony infrastructure.

SIPRTPSDPAsteriskFreeSWITCHOpenSIPSRTPengineDrachtioLinphoneG.711Packet capturesMedia-path debugging

Linux and container platforms, access paths, stateful services and operational control planes.

LinuxDockerDocker ComposesystemdCaddyCloudflare TunnelTailscalePostgreSQLMySQLRedisMongoDBAWS

Monitoring that is tested against real failure conditions rather than judged by dashboard appearance.

PrometheusPromQLGrafanaAlertmanagerBlackbox Exporternode_exportercAdvisorLokiAlloyOpenObserveLoad testingFailure validation

DEVICEfirmware + codecs + I/O

↔

NETWORKpackets + timing + routing

↔

PLATFORMservices + state + access

↔

OPERATIONSmetrics + logs + failure tests