6 results (2 new)
6 results (2 new)
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
Since 2019, Wise Skulls has been redefining the landscape of contractual staffing by connecting exceptional talent with industry-leading opportunities. Specializing in the IT sector and expanding into diverse industries, we help build impactful careers and high-performing teams.
Our mission is clear: to align the right people with the right roles while fostering long-term success for individuals and organizations alike. By leveraging cutting-edge technology, industry expertise, and a deep understanding of both on-site and remote work dynamics, we provide staffing solutions that go beyond filling positions and create pathways to growth and innovation.
At Wise Skulls, we aspire to set new benchmarks for efficiency and excellence in staffing. Our vision is to become the go-to platform for contractual hiring, empowering professionals to achieve their career aspirations and enabling businesses to thrive with dynamic teams.
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