2 Grub Jobs

Here is an excellent opportunity for you to join Cisco's Distributed Software Engineering [DSE] business unit. In this role, you will work on next-generation data center products that facilitate large-scale, low-latency, high-speed networks and switching solutions. Your contributions will better equip customers to handle growing workloads. You will have a unique chance to be involved in product development from the ground up, focusing on both Platforms and Software. As a member of a dynamic testing team, you will collaborate closely with the development team to ensure the delivery of high-quality products. Your responsibilities will include owning multiple components, understanding new feature requirements, developing test designs based on functional specifications, automating tests, and engaging with customers. Additionally, you will interact with peer engineers and technical leaders within the business unit to discuss design, functionality, and architecture across Cisco products. As a software QA engineer in this group, you will be responsible for testing, automating, and enabling platform/software solutions for customers. You will also have the opportunity to work on the Storage Area Network in conjunction with Ethernet for Cisco's product line. In this role, you will work within the Data Center Networking Group, which focuses on developing the Nexus 9000 line of data center and cloud switches. These switches prioritize application awareness to enhance network infrastructure flexibility and agility in response to application needs and virtual machine workload mobility. The group has also developed a 400G, 800G Ethernet transceiver aimed at lowering the optic's price to outperform competitor offerings. You will collaborate closely with Customers, Product Marketing, Hardware, and Software groups to deliver products effectively. As a suitable candidate for this role, you should hold a B.E/B.Tech/ME/Mtech/MS degree from a reputed university and have at least 5-10 years of software development experience in embedded systems or system software space. You should be a hands-on engineer/leader capable of contributing to architecture, design, and development of the platform development cycle. Additionally, you should possess an in-depth understanding of hardware boards and layout, along with experience in BIOS/GRUB/uboot, Linux device drivers/Linux KLM, networking stack, memory model, and other related areas. Desired qualifications include working experience in merchant silicon, knowledge of asic forwarding, Linux drivers, and 3rd party ASICs/network processors. Experience with scalable, distributed architectures and network switches is a plus. Strong written and verbal communication skills, the ability to multi-task, solve complex problems, drive a team towards results, and a passion for technology and software development are also desired qualities. Join Cisco, where every individual's unique skills and perspectives come together to power an inclusive future for all. As a Cisconian, you will experience diverse career opportunities, supported learning and development, and a culture that embraces hybrid work trends. Embrace the opportunity to connect with communities, give back through volunteering, and contribute to a more inclusive future for all. Be part of the worldwide leader in technology that powers the internet and make a difference with Cisco.,

Job Title: Linux Bootloader Lead Location: Hyderabad, India Key Responsibilities: Lead the architecture, development, and optimization of the Linux boot process, including firmware, bootloader, kernel, and early userspace. Own and maintain the entire boot stack: UEFI, Secure Boot, Bootloaders (GRUB, systemd-boot, U-Boot), and initramfs/initrd. Collaborate with platform teams to bring up new boards/platforms and ensure successful boot to the Linux OS. Implement and validate secure boot chains, measured boot, and firmware validation using TPM, UEFI variables, and cryptographic signatures. Optimize boot time and performance for user-friendly startup experience, including debugging slow boot issues using profiling tools. Lead the integration and customization of bootloaders for x86 and ARM-based platforms, handling multi-OS and recovery boot scenarios. Support advanced boot features like dual boot, A/B updates, fastboot, and UEFI Shell tools. Work closely with hardware, BIOS/firmware, OS, and security teams to ensure cohesive platform initialization. Own debug and recovery workflows for boot failures, including diagnostics for power-on reset, firmware updates, and kernel panics. Participate in secure OS update architecture, rollback protections, and integrity checks at each boot stage. Required Qualifications: Bachelors or Masters degree in Computer Science, Electronics, or a related field. 7+ years of experience in Linux system bring-up, bootloader development, and low-level platform initialization. Deep knowledge of the Linux boot flow, including UEFI, ACPI, Device Tree, bootloaders, and init systems (systemd/sysvinit). Strong expertise in GRUB, systemd-boot, or U-Boot, UEFI/EDK II programming and customization, Secure Boot, TPM 2.0, Measured Boot, and SBAT (Secure Boot Advanced Targeting) Familiarity with x86 and ARM platform initialization, boot configuration (NVRAM, EFI vars), and multi-stage boot handling. Experience with boot time profiling and performance tuning tools like bootchart, systemd-analyze, and kernel initcall_debug. Proficient in C, Assembly, shell scripting, and familiarity with Makefiles and build systems. Strong debugging skills with serial consoles, JTAG, Lauterbach, and pre-kernel crash dump analysis. Experience with firmware upgrade and rollback mechanisms, capsule updates, and BIOS/firmware vendor toolchains. Contributions to open-source bootloaders or Linux early-boot subsystems is a plus.