Wi-Fi/DOCSIS Network Engineer

Job description

- Languages: C (expert), C++ (proficient); Python for tooling/automation; Shell scripting. - Platforms: Linux (Yocto/OpenWrt-like build systems), RTOS (FreeRTOS/ThreadX or equivalent). - Frameworks/Stacks: RDK/RDK‑B, Docsis (preferably 3.1/4.0), SNMP, TR‑369 (USP), TR‑069 (nice to have). - Networking: Wi‑Fi (802.11ac/ax/be), TCP/IP, VLAN, QoS, NAT, firewall, routing, policy-based failover. - Drivers/Middleware: GPIO/I2C/SPI/USB, LED/FAN control, audio subsystems, diagnostics, logging. - Toolchains & Build: GCC/Clang, CMake/Make, cross-compilers, JTAG/UART, bootloader (U‑Boot), BSP/HAL. - Version Control & CI: Git, GitLab/GitHub CI, artifact management, automated unit/integration tests. - Quality & Reliability: Profiling, memory/performance optimization, watchdogs, crash analysis, core dumps. - System Architecture: Module boundaries, IPC, threading/concurrency, resource management. - Design, develop, and port RDK/RDK‑B or vendor SDK modules on routers/modems across different OEMs. - Implement C/C++ control services for LED, USB, FAN, and system state displays for cable modems/routers. - Develop RTOS modules/drivers, SNMP interfaces, SSH/Telnet support, and voice/audio features. - Build data control modules for Wi‑Fi 7 routers including cellular backup orchestration. - Design TR‑369 (USP) based data collection/telemetry modules and define robust data models. - Own system architecture, performance tuning (CPU/memory/latency), and reliability (watchdogs, crash dumps). - Collaborate with hardware, QA, and cloud/DevOps teams for manufacturing tests, CI/CD, and field telemetry. - Write high-quality design docs, test plans, and release notes; participate in code reviews and certification prep. - Troubleshoot field escalations and drive root cause analysis across firmware, drivers, and network stack layers. Nice-to-Have / Preferred: - Wi‑Fi 7 expertise: MLO, 320 MHz channels, multi‑RU scheduling, AFC (where applicable). - Experience with cellular modems (LTE/5G), failover and bonding, multipath. - RDK telemetry adapters, USP controllers/agents, vendor data model mapping. - Rust for systems modules (safety-critical or performance-sensitive components). - Exposure to OpenWrt, prplOS/prplMesh, EasyMesh, and board bring‑up. - Manufacturing line support: factory calibration, RF tests, firmware provisioning. - Security: secure boot, trusted execution, key management, certificate provisioning. - Compliance/certification: Docsis, Wi‑Fi Alliance, FCC/CE, operator acceptance test processes.