Linux Kernel Developer

Key Responsibilities

1. Kernel Lifecycle & Maintenance

Upstream Alignment: Lead the strategy for upgrading enterprise kernels (e.g., migrating from LTS 5.15 to 6.6) while maintaining binary compatibility where required.

Patch Porting: Expertly port functional and performance patches between disparate kernel versions, resolving complex code conflicts and API changes.

CVE Mitigation: Monitor the Linux Kernel Mailing List (LKML) and security advisories to identify and backport CVE patches from upstream to production environments.

2. Deep-Dive Debugging & Stability

Panic Analysis: Act as the final escalation point for Kernel Panics and "Oops" messages. Utilize kdump, crash, and gdb to perform post-mortem analysis of vmcores.

Boot-Time Resolution: Debug critical failures during the early boot process (UEFI handoff, initramfs, and early kernel init) where standard logging is unavailable.

Performance Tuning: Use ebpf, ftrace, and perf to identify bottlenecks in memory management, scheduler latency, or I/O throughput.

3. Driver Development & Hardware Integration

Driver Ownership: Design, develop, or maintain at least one Open Source or Proprietary Device Driver (Network, Storage, GPU, or Character devices).

Hardware Abstraction: Interface directly with hardware registers, managing DMA mappings, and optimizing interrupt handling (MSI-X, Threaded IRQs).

Out-of-Tree Management: Maintain driver compatibility across kernel updates using DKMS or similar frameworks.

4. Infrastructure & Automation

Registry Management: Oversee the distribution of custom kernel builds and modules via GitLab Container/Package Registries.

CI/CD for Kernel: Build automated testing pipelines (Hardware-in-the-loop) to validate kernel stability before enterprise-wide deployment.

Required Technical Skills:

Languages: Mastery of C/C++ Programming (C is preferred)

Kernel Internals: Deep understanding of VFS, Memory Management (MMU/Paging), Process Scheduling, and Networking Stacks.

Debugging Tools: Expert-level use of kprobes, trace-cmd, valgrind, and hardware-level debuggers (JTAG/Serial Console).

Build Systems: Proficiency with Kbuild, Makefiles, and building RPM/Debian packages for kernel distribution.

Security: Hands-on experience with SELinux/AppArmor policy development and kernel hardening (FIPS, KSPP).

• Perform analysis, design and implementation of assigned projects using sound engineering principles and adhering to business standards, practices, processes, and product / program requirements
• Engage with global teams to effectively translate customer requirements to software requirements and identify potential solutions that are optimized to operate with in constraints of the product
• Troubleshoot variety of complex software problems
• Provide timely status updates and proactive communications on issues to the stakeholders.
• Able to interface with internal and external stake holders regarding software issues.
• Contribute as part of teams put together to meet overall organization initiatives/objectives
• As a technical lead,

1. Guide team efforts towards successful deliverables.
2. Provide technical leadership to teammates through coaching and mentorship.
3. Able to effectively manage escalations and operate under crisis
4. Have the ability and willingness to acquire in-depth understanding of domain and existing products (beyond software) and apply that knowledge to develop new products and to deliver enhancements/ fixes for customer requirements.
   
   

• Background in Industrial Automation
• Prior experience in supervisory control systems software
• Bachelor of Engineering degree in Computer Science/Information Science/Electronics/Electrical/Instrumentation with strong back ground in Industrial automation software
• Strong C, C+ programming on variety of Windows platforms using Microsoft technologies
• Sound knowledge of Computer Science fundamentals data structures, algorithms, operating system concepts
• Excellent analytical skills, methodical problem-solving skills and troubleshooting skills
• Prior experience of working in global teams and interfacing with multiple stake holders
• Excellent communication skills (verbal and written) and the ability to interact with extended teams spread across the globe.

Developer Software (Embedded)

Location: Udaipur

Qualification: BE in (Electrical/Electronic Engineering)

Technical

· Experience in design and development with structured Software Development Life Cycle for embedded applications

· Proficiency in C language or assembly programming, Microcontroller, Micro Processor.

· Preferably experience in working and understanding the metering domain

· Proficiency in development processes, tools/IDE (KEIL, IAR, Eclipse) & test automation

· Unit testing skill

· Interface RS485, RS232, SPI, I2C, USB, LCD, Keypad, Flash, EEPROM

· Coding Standards and MISRA rules are preferable

· Knowledge of ARM / MIPS / Coldfire / MSP430 / dsPIC / 8051 and other popular processor

· Experience in working on communication products based on GPRS, ZIGBEE, ZWAVE, Ethernet, Power line communication, DLMS, MODBUS

Job Description

· Understand improvement requirements and develop improvement solutions & package, according to technical specifications / high-level solution design

· Responsible to carry out effective and timely unit testing, in order to, deliver first time right solutions

· Development of automation framework/compiler / emulators to speed up business delivery cycle in NPI programs

· Keep track of new trends, continuously learn and self-develop skills by ensuring effective knowledge sharing through group meetings and training. Impart training to new joiners as and when assigned

· Proficiency in developing embedded software design with high reusability using relevant tools and BSM or flow diagram

Position Overview:

This position is part of highly skilled fimrware team that do software board bring up of bare silicon for next generation products. In order to write system software for embedded electronic products, this position requires academic background in electronics engineering to understand hardware concepts such as digital logic, schematics, and microprocessor communications to develop effective embedded software.

Candidate should have complete knowledge of Software development cycle from architecture definition to the implementation.

Responsibilities:

• Must wear multiple hats from analyzing field and factory reported issues to software integration.
• Be a liason for troubleshooting and debugging complex systems and identifying the root cause.
• Develop detailed design documents and customer facing application notes for the system and IOT features for Mobile routers.
• Act as a product lead and be part of bigger team in software bring up.   
• Ability to work on Low level software such as bootloaders and understanding of low level functional blocks is a must.
• Work on Linux kernel and configuration.
• Write or port device drivers for Ethernet, USB, GPIO, LED, Bluetooth, Accelormeter, LCD and touch screen.
• Debug stability issues in data routing between WAN and LAN interfaces.
• Work with Software QA with test plan and execution.
• Work with Hardware team to identify and root cause stability problems.

Experience/Requirements:  

• Demonstrable knowledge of C, C++, Assembly programming skills
• Overall 10+ years of experience in embedded environment preferabily Linux.
• Board bring up proficiency with bootloaders and other low level software, must be very good with debugging techniques.
• Experience in TCP/IP networking is must for trouble shooting throughput and other traffic issues.
• Driver experience with I2C, SPI, UART, LCD, Ethernet, PCIe is a plus.
• Experience with low level debugging using JTAG.
• Experience with Makefiles, and build environments such as PTXDIST, Yocto and Buildroot.    
• Experience with version control such as git and svn.
• Good communication skills and team player.
• Ability to work independently and autonomously to meet deadlines, in a fast-changing environment.

Education:

• Become a member of the team responsible for IoT hub software development. IoT hub provides IoT functionality (smart home, smart appliance,…) to mobile and web clients and runs on Linux-based host like smart home hub, broadband router, STB, etc.
• Implementation and/or extension of leading wireless/wired protocols (ZigBee, Bluetooth, IP-based,..) for communication with smart devices
• Development of new features for control and monitoring of smart devices and automation of IoT system
• IoT hub software porting on various hosts
• Software optimizations

Position:             C++ Developer

Location:            Hyderabad

Requirements:

• Strong C++ skills obtained in multiple years of C++ programming experience (at least 3 years)
• Good understanding of embedded system development based on Linux OS
• Knowledge of advanced programming concepts (e.g. Multi-Threading, OS internals, Networking, IPC mechanisms)
• Solid understanding of computer networking (TCP/UDP/MQTT/SSL)
• Solid understanding of Git source code management system
• Troubleshooting skills
• B.Tech/M.Tech/MCA in computer science/ECE/EEE
• Fluent English