Strong C and C++ on Linux — multi-process user space services, IPC, threading, performance and memory debugging.
Comfort building and operating long-running daemons and services managed by systemd: unit configuration, service ordering, startup and recovery behavior, journald-based diagnostics.
Qt and QML for desktop and embedded UIs — passenger, crew, and tooling front-ends.
Networking fundamentals: TCP/UDP, TLS, DHCP/DNS, REST/HTTP at the application level, and message brokers — MQTT in particular (topic design, QoS, broker tuning, fanout control, client behavior).
GStreamer and audio/video pipeline experience at the application layer — RTP streaming, codec integration, playback troubleshooting.
Working knowledge of running C++ applications on embedded Linux targets — packaging into images, configuration management, on-device logging and diagnostics, behavior across power and network transitions. We don't do kernel or driver development; we live in userspace.
Comfort in a cross-build environment with SVN/Git source control and ticket-driven workflow.