Senior Member of Technical Staff

VMware, Inc. Palo Alto, CA
To manage storage multipathing and failover, VMware ESX/ESXi uses a special VMkernel layer, Pluggable Storage Architecture (PSA). The PSA is an open modular framework that coordinates the simultaneous operation of multiple multipathing plugins (MPPs). PSA is a collection of VMkernel APIs that allow third party hardware vendors to insert code directly into the ESX storage I/O path.Virtual SCSI (VSCSI) is VMKernel component that emulates a SCSI Virtual device to Virtual Machines. VSCSI supports multiple backends to allow direct passthrough access to external LUNS or fla tbackend access to VMFS and VSAN exposed datastores. VSCSI component also provides a filter framework to allow partners to add additional functionality in the IO path.

The Sphere Core Storage team is looking for a senior engineer to support the core storage infrastructure in VMware ESXi Kernel and contribute to Future proofing VMware ESX storage stack infrastructure. The engineer will be part of the Core Storage , Protocols and Infrastructure Group, under the aegis of Storage and Availability Business Unit. The Sr Engineer will be responsible for maintenance and development of Core Storage Infrastructure pieces in ESX Kernel in VMware SDDC and VMware on AWS cloud Datacenter.

Roles:

* The team member will work with architects, product management teams and other stakeholders across sites to design and develop new features and products.

* Engineer will also collaborate with the Quality Engineers to ensure the quality of the developed products.

* Duties will include design, implementation, testing, and debugging.

* The engineer will also interact with other core engineering teams and groups outside of engineering in Storage and Availability Business Unit in helping analyze and prioritize product features, interact with partners, and enablement.

Responsibilities:

* Innovate and develop new storage technologies

* Design, Develop and test storage components in the ESXi kernel.

* Work with Customer support teams to provide technical workarounds and Root cause for field issues.

* Work with VMware kernel and management teams to ensure that features work seamlessly end-to-end, and maintain product extensibility and compatibility.

* Share responsibility for managing core storage services and components for VMware Cloud in AWS (VMC)

* Work with Quality Engineers and ensure software testability, quality and stability.

* Work with the documentation team and ensure good quality documentation of the product and API.

Expected Competencies & Technical Skills:

* Computer Science or related undergraduate and/or master's degree is required. Any other demonstrated high technology aptitude is desired.

* Strong C programming skills and several years of kernel development experience.

* Multiple years of hands on experience in coding and debugging on at least one of the Storage protocols [SCSI, FC, iSCSI, NVMe]

* Experience with Flash devices and/or exposure to VMWare ESXi storage stack, storage solutions on Windows Storage Failover Clustering and VMware VAAI, VVOLs, NMP/SATP plugin development is an added plus.

* Must have strong analytical, diagnostic and problem-solving skills with ability to work independently and be able to prioritize and handle multiple outstanding tasks

* Around 6+ years of enterprise software development experience is desired.

* Proven experience in developing enterprise class, highly available & highly scalable software's.

* Domain expertise in virtualization, storage technologies, and availability/business continuity is highly desired

http://www.vmware.com/files/pdf/solutions/VMware-Perspective-on-software-defined-storage-white-paper.pdf

https://cormachogan.com/2013/02/04/pluggable-storage-architecture-psa-deep-dive-part-1

http://www.vmware.com/products/vsphere/features/storage.html

http://www.vmware.com/files/pdf/solutions/Understanding-the-DNA-of-Software-Defined-Storage-Tech-trends.pdf