Embedded C Developers – OpenSync/OpenWrt
Save this job and keep your search organized
Create a free account to save jobs, create alerts and return to this listing from your dashboard.
By continuing, you agree to our Terms & Privacy Policy.
Title: Embedded C Developers – OpenSync/OpenWrt Wi-Fi Router with Cellular
Location: Denver, CO (4 days onsite a week)
Duration: 6 months (possibility of extension)
JD:
Required Skills
5+ years of embedded C development on Linux-based platforms
Strong proficiency in C programming — pointers, memory management, IPC, event-driven architectures
Experience with OpenWrt build system, package management, UCI configuration, and JFFS2/SquashFS overlay filesystems
Familiarity with OpenSync or similar cloud-managed CPE frameworks (OVSDB, protobuf, MQTT telemetry)
Experience with cellular modem integration — AT commands, QMI, network interface management (rmnet/wwan)
Strong understanding of Linux networking — routing tables, metrics, netfilter, bridge interfaces, IPv4 and IPv6 dual-stack, neighbor discovery, DHCPv4/DHCPv6, SLAAC, and prefix delegation
Understanding of TLS handshake with mutual authentication using X.509 certificates, certificate chain validation, and secure provisioning
Knowledge of security and tunneling protocols — GRE tunneling, IPsec, VPN overlays, and secure encapsulation for cloud-managed traffic
Experience with event loop frameworks (libev, libuv, or similar)
Proficiency with debugging tools — GDB, strace, tcpdump, kernel logs, serial console
Familiarity with Git, GitLab CI/CD, cross-compilation toolchains
Understanding of WiFi standards (802.11ax/be) and wireless driver configuration
Top Skills:
1. Embedded C Development on Linux/OpenWrt
C programming, Linux internals, debugging, IPC, event-driven design
2. OpenSync/OpenWrt Platform Development
OpenSync Managers, OVSDB, UCI, MQTT, OpenWrt build system
3. Linux Networking & LTE/5G Cellular Integration
Routing, IPv4/IPv6, failover, QMI/MBIM, modem management, GRE/IPsec
-
Denver, CO, United States ClifyX Full-timeJob Title: Embedded C Developer – OpenSync/OpenWrt WiFi Router with CellularWork Location : Denver, CO (4 days onsite/week)Contract duration: 12+ months ContractJob Description:Required Skills• 5+ years of embedded C development on Linux-based platforms• Strong proficiency in C programming — pointers, memory management, IPC, event-driven...
-
Denver, CO, United States ClifyX Inc Full-time $120,000 - $160,000ClifyX Inc is seeking an Embedded C Developer to join our OpenSync/OpenWrt WiFi router team in Denver, CO, with four onsite days per week. You will design and optimize Linux-based firmware, implement device drivers, and integrate cellular modem capabilities.You will work with OpenWrt tooling, UCI configurations, secure networking, and CI/CD pipelines to ship...
-
Embedded C Developer
2 days ago
Denver, CO, United States Cygnus Professionals Inc. Full-timeEmbedded C Developer – OpenWrt/OpenSync 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 -...
-
Denver, CO, United States Wise Skulls LLC Full-time $110,000 - $170,000Wise Skulls LLC is seeking an experienced RDK-B Firmware Developer to design, implement, debug, and validate firmware for broadband gateways and cable modem platforms. The role emphasizes hands-on work with RDK-B, C/C++, Embedded Linux, DOCSIS, and Wi‑Fi technologies, including OpenSync or Plume integrations where applicable.You will collaborate across...
-
RDK-B FIRMWARE Developer
11 hours ago
Denver, CO, United States Wise Skulls Full-time🚀 Hiring: Senior RDK-B Firmware Developer We're hiring an experienced RDK-B Firmware Developer with strong hands-on expertise in RDK-B, C/C++, Embedded Linux, DOCSIS, and Wi-Fi technologies to develop, integrate, debug, and validate firmware for broadband gateways and cable modem platforms. 🔹 Role: Senior RDK-B Firmware Developer 📍 Location:...
-
Senior RDK-B Firmware Developer
1 day ago
Denver, CO, United States Wise Skulls Corp. Full-timeWe are seeking an experienced RDK-B Firmware Developer with strong knowledge of broadband gateways, Embedded Linux, DOCSIS, and Wi-Fi technologies. The candidate will develop, integrate, debug, and validate firmware/software components for RDK-B-based Cable Modem and Gateway platforms.Key Responsibilities :Develop and integrate RDK-B firmware/software...
-
RDK-B FIRMWARE Developer
6 days ago
Denver, CO, United States Wise Skulls Full-time🚀 Hiring: Senior RDK-B Firmware Developer We're hiring an experienced RDK-B Firmware Developer with strong hands-on expertise in RDK-B, C/C++, Embedded Linux, DOCSIS, and Wi-Fi technologies to develop, integrate, debug, and validate firmware for broadband gateways and cable modem platforms. 🔹 Role: Senior RDK-B Firmware Developer 📍 Location:...
-
Embedded Open WRT Developer
1 week ago
Denver, CO, United States Cygnus Professionals Full-timeGreetings from Cygnus Professionals Inc We are looking for Job Title: Embedded C Open WRT Developer Location: Denver, CO(Onsite) W2 Contract Below skill set is required: Embedded C, IPnetwork, OpenWRT(Good to have), Wi-Fi , 4G/5G Development and Testing. And preffered 3-5 experience This project involves developing a Wi-Fi dongle/cellular backup solution...
-
Embedded C Developer
3 weeks ago
Denver, CO, United States Cygnus Professionals Full-timeEmbedded C Developer – OpenWrt/OpenSync 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 ...
-
C Development
2 weeks ago
Denver, CO, United States Smart IT Frame LLC Full-timeC Development - Wi-Fi and Networking experienceExperience Level: 10+ yearsTop Must Have's (10+ years):Wi-FiNetworkingEmbedded C Development10+ years of Programming experience for both user and kernel space in C /