Embedded C Developer
Cygnus Professionals Inc.
Denver, CO, United States
7 days ago
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Role details
Contract type
Permanent contract
Employment type
Full-time (> 32 hours)
Experience level
Expert
Experience required
5 years minimum
Working hours
Regular working hours
Job source
Tech stack
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)
+10 more
Kernel Debuggers
Message Queuing Telemetry Transport (MQTT)
Routing
X.509
Tcpdump
Wi-Fi Technology
Network Routers
Gitlab
Git
Openwrt
Requirements
- 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
Apply for this position
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Prepare application
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