Wi-Fi/DOCSIS Network Engineer

We are seeking a hands-on Senior Embedded Software Engineer to build and evolve next‑generation customer premises equipment (CPE) including DOCSIS 4.0 cable modems and Wi‑Fi 7 routers. You will design and develop firmware across multiple OEM platforms leveraging RDK/RDK‑B, vendor SDKs, and RTOS—owning modules from HAL to application services. The role spans system architecture, driver and middleware development, data models/telemetry (TR‑369), cellular backup integration, and performance/reliability engineering for production-grade devices.

Roles & Responsibilities

• • 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.

Technical Requirements

• • 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.

Additional

• 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.