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# Embedded C Developer

- **Company:** Cygnus Professionals Inc.
- **Location:** Denver, CO, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** LTE (Telecommunication), Computer Networks, Continuous Integration, Dynamic Host Configuration Protocol, Embedded C, Linux on Embedded Systems, Event-Driven Programming, Protocol Buffers, Internet Protocol Security (IP SEC), IPv4, IPv6, Virtual Private Networks (VPN), Kernel Debuggers, Message Queuing Telemetry Transport (MQTT), Routing, X.509, Tcpdump, Wi-Fi Technology, Network Routers, Gitlab, Git, Openwrt
- **Published:** October 8, 2026
- **Apply:** https://www.disabledperson.com/jobs/75854457-embedded-c-developer

## About the Role

* 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
 * Git/GitLab, CI/CD, cross-compilation