Lead Member of Technical Staff

Pure Storage; Bengaluru; On-site; INR 3,000,000 - 6,000,000; Full time

Job summary

Pure Storage Bangalore invites a Staff Engineer to shape kernel and driver development for Linux-based initiator stacks, FC/SCSI and NIC drivers. You will optimize NVMe, ROCE, and Fibre Channel paths, contribute to Linux upstream, and mentor junior engineers while delivering high-quality components.

The role focuses on Linux initiator behavior, Fibre Channel, NICs, and storage protocol stacks in a high-performance Pure Storage Flasharray environment, with onsite collaboration.

Qualifications

• Strong experience writing device drivers and/or kernel development for Linux/Unix, storage and/or networking drivers.
• 8+ years development experience, typically 10+ years.
• C and C++ with Python.
• Linux storage device drivers (Fibre Channel, NVME, ROCE, block, multipath).
• Performance analysis/optimization for storage systems or protocols.
• Debugging difficult protocol/kernel/system issues.
• Designing components in storage protocol stacks and storage systems.
• Understanding PCIe Gen4/Gen5, HBA, DMA and bottlenecks.
• Technical leadership, mentoring and on-time delivery.

Responsibilities

• Dealing with middleware C++ modules.
• Maintain Linux kernels for internal testing.
• Document supported configurations for customers.
• Evaluate Linux initiator behavior and optimize for Pure Storage Flasharray; contribute fixes to Linux upstream.
• Maintain Purity FC SCSI target driver with enhancements and bug fixes.
• Resolve FC bugs and improve FC stack resilience, including multipathing and link health.
• Maintain NIC drivers on Pure’s storage systems.
• Work with storage area network protocols such as Fibre Channel and Ethernet.
• For VMWare, debug initiator issues and create compatibility docs.

Skills

Device driver development

Linux kernel development

Storage drivers

Networking drivers

C and C++ programming

Python

Performance optimization

Kernel debugging

Leadership experience

PCIe Gen4/Gen5

Tools

VMware

GCC/Build tools

Git

Linux kernel tools

Perf analysis tools

Job description

We’re in an unbelievably exciting area of tech and are fundamentally reshaping the data storage industry. Here, you lead with innovative thinking, grow along with us, and join the smartest team in the industry.

This type of work—work that changes the world is what the tech industry was founded on. So, if you're ready to seize the endless opportunities and leave your mark, come join us.

THE ROLE

Staff Engineer for a group of engineers with responsibility for Linux and VMWare initiator stack behavior as well as Fibre Channel and NIC drivers on Pure storage array.

WHAT YOU'LL DO

The Kernel and Driver development team is responsible for several areas

• Dealing with middle ware C++ modules
• Maintain Linux kernels for internal testing
• Documenting supported configurations for customers
• Responsibility for evaluating Linux initiator behavior and optimizing for Pure Storage Flasharray. This includes correctness as well as optimizing for performances. Will contribute bug fixes and enhancements to Linux upstream. Analyze and debug difficult Linux bugs to optimize Flasharray attachment.
• Responsible for maintaining Purity’s Fibre Channel SCSI (FCP) target driver. Maintenance includes driver updates for enhancements, bugs fixes and new hardware.
• Resolve difficult Fibre Channel bugs found internally or externally and enhance the resilience of Pure’s FC stack. This includes projects around multipathing and link health.
• Responsible for maintaining NIC drivers on Pure’s storage systems.
• Working for a team that deals primarily in various storage area network protocols such as Fiber Channel and Ethernet.
• On the initiator side, the team will be responsible for Linux initiator behavior attached to Flasharray. Focus is on NVME (ROCE, FC, TCP/IP) but also includes FC-SCSI (FCP) and iSCSI interfaces. This includes software development/fixes for Linux initiator stack, debugging initiator problems, and creating compatibility documents for Purity. For VMWare, focus is on debugging issues with VMWare as an initiator, and creating compatibility documentation.
• For FibreChannel and NIC Drivers, focus is responsibility for FC-SCSI driver stack for storage side and responsibility for NIC drivers on networking side. This includes responsibility for related code, utilities, enhancements supporting RAS, as well as debugging failures found internally and in the field.

WHAT YOU BRING

Must Have:

• Strong experience writing device drivers and/or kernel development for Linux/Unix. Prefer experience in storage and/or networking drivers
• Minimum 8 years of development experience, but expect that typically candidates would have 10+ years experience.
• Experience with software development using C and C++, along with Python
• Experience writing Linux storage device drivers, (including some sets of Fibre Channel, NVME, ROCE, block and multipath modules).
• Experience with performance analysis/optimization for storage systems or protocols
• Demonstrated experience debugging difficult protocol/kernel/system issues
• Experience designing and implementing significant components in storage protocol stacks and storage systems.
• Strong understanding of PCIe Gen4/Gen5 architecture, HBA behavior, DMA, and storage transport bottlenecks.
• Experience leading other engineers technically. Should be able to mentor more junior engineers and lead other engineers in an overall project. Should demonstrate on time delivery with high quality.

Good to Have:

• Experience with storage protocols: either SCSI (FC-SCSI or iSCSI/FCP) and/or NVME Fabrics (NVME/ROCE, NVME/TCP or NVME/FC) will be an advantage.
• VMWare experience, with understanding of their initiator stack will be an advantage
• Experience upstreaming Linux code is preferred
• Experience with network protocols, including TCP/IP.

#LI-ONSITE

WHAT YOU CAN EXPECT FROM US:

• Innovation: We celebrate those who think critically, like a challenge, and aspire to be trailblazers.
• Growth: We give you the space and support to grow along with us and to contribute to something meaningful. We have been named Fortune's Best Workplaces in Technology™, Fortune's Best Workplaces in the Bay Area™, and certified as a Great Place to Work®!
• Team: We build each other up and set aside ego for the greater good.