Member of Technical Staff

Responsibilities:

• Working for a team that deals primarily in various storage area network protocols such as Fibre Channel and Ethernet.
• On the initiator side, the team will be responsible for Linux initiator behaviour attached to FlashArray.
• The focus is on NVME (ROCE, FC, TCP/IP) but also includes FC-SCSI (FCP) and iSCSI interfaces.
• This includes software development/fixes for the Linux initiator stack, debugging initiator problems, and creating compatibility documents for Purity. For VMware, the focus is on debugging issues with VMware as an initiator and creating compatibility documentation.
• For FibreChannel and NIC Drivers, focus is on responsibility for FC-SCSI driver stack for the 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.
• Maintain Linux kernels for internal testing.
• Document supported configurations for customers.
• Responsible for evaluating Linux initiator behaviour and optimising for Pure Storage FlashArray.
• This includes correctness as well as optimising for performance.
• Will contribute bug fixes and enhancements to Linux upstream.
• Analyse and debug difficult Linux bugs to optimise FlashArray attachment.
• Responsible for maintaining Pure's Fibre Channel SCSI (FCP) target driver.
• Maintenance includes driver updates for enhancements, bug 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.
• Dealing with middleware C++ modules.

Requirements:

• Strong experience writing device drivers and/or kernel development for Linux/Unix.
• Prefer experience in storage and/or networking drivers.
• Minimum 5 years of development experience, but expect that typically candidates would have 15+ years of experience.
• Experience designing and implementing significant components in storage protocol stacks and storage systems.
• 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.
• 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.
• Experience with performance analysis/optimization for storage systems or protocols.
• Should have VMware experience, with understanding of their initiator stack.
• Experience writing Linux storage device drivers, including some sets of Fibre Channel, NVME, ROCE, block and multipath modules.
• Experience debugging difficult storage attach issues.
• Experience with software development using C and C++, along with Python.
• Experience upstreaming Linux code is preferred.
• Should have experience developing test automation.
• Experience analysing and optimising storage performance.
• Experience writing storage or networking device drivers, preferred in a Linux/Unix environment.
• Demonstrated experience debugging difficult protocol/kernel/system issues.
• Experience with network protocols, including TCP/IP.