Wi-Fi/DOCSIS Network Engineer

Infosys; Pune District; On-site; INR 1,800,000 - 2,400,000; Full time

Job summary

Infosys is seeking a hands-on Senior Embedded Software Engineer to design and evolve firmware for CPE devices, including DOCSIS 4.0 modems and Wi‑Fi 7 routers. You will work across system architecture, drivers, and telemetry modules, leveraging RTOS and Linux-based builds with Yocto/OpenWrt-like environments.

The role includes porting modules for multiple OEM platforms, implementing C/C++ control services, and collaborating with hardware, QA, and DevOps for manufacturing tests and certification

Qualifications

• Experience designing embedded software across firmware, drivers and middleware.
• Proficiency in C/C++ with strong debugging and performance tuning skills.
• Experience with Linux-based build systems and Yocto/OpenWrt-like environments.

Responsibilities

• Design and port RDK/RDK-B or vendor SDK modules across OEM routers/modems.
• Develop RTOS modules, drivers, and data telemetry interfaces (TR-369).
• Implement control services for hardware features (LED, USB, FAN, system state).
• Collaborate with hardware, QA, and cloud/DevOps for manufacturing tests and CI/CD.

Skills

C

C++

Python

Shell scripting

RTOS

Linux

Firmware development

Drivers/Middleware

Education

Master of Engineering

Master of Science

Bachelor of Engineering

Tools

Yocto/OpenWrt

RDK/RDK-B

U-Boot

GCC/Clang

Git/GitHub CI

RTOS (FreeRTOS/ThreadX)

Job description

Job DescriptionWe 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 Responsibilities Nice-to-Have / Preferred

• Wi-Fi 7 expertise: MLO, 320MHz 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.

Educational Requirement

• Educational RequirementMaster Of Comp. Applications,Master Of Engineering,Master Of Science,Master Of Technology,Bachelor Of Comp. Applications,Bachelor Of Science,Bachelor Of Engineering,Bachelor Of Technology

Preferred Skills

• Preferred SkillsTechnology->Media->Settop Box, DVB,Technology->Network->Cable-DOCSIS->DOCSIS 3.1,Technology->Network->WIFI Technologies

Service Line

• Service LineEngineering Services