IT & Software

Embedded C Developer

Cygnus Professionals Inc.

Denver · Colorado · United States

Embedded C Developer – OpenWrt/OpenSync


Read the overview of this opportunity to understand what skills, including and relevant soft skills and software package proficiencies, are required.

Denver, CO


Must Have:

  • 5+ years Embedded C + Embedded Linux
  • Strong OpenWrt development: build system, packages, UCI, init scripts
  • OpenSync / OVSDB , protobuf, MQTT
  • WiFi + Linux networking : routing, IPv4/IPv6, DHCP, netfilter, bridges
  • LTE/5G modem integration : AT commands, QMI/MBIM, wwan/rmnet
  • CPE/Residential Gateway/Router experience
  • GDB, strace, tcpdump, kernel debugging
  • Event-driven programming (libev/libuv )
  • TLS/mTLS, X.509 , GRE/IPsec/VPN xhqgsiq
  • Git/GitLab, CI/CD, cross-compilation

Strong Plus: Qualcomm IPQ / Broadcom / Atheros, WiFi drivers, DOCSIS, PCIe/USB, eSIM, 5G NSA/SA, TR-069/TR-369/TR-181, BSP/hardware bring-up.

Reference: WJ-3131_4690687

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