# Verghis Koshi

> Staff Engineer  (Linux, DPDK, Python, C/C++, hardware forwarding , embedded systems, ASICs)

Location: San Jose, California, United States
Profile: https://flows.cv/verghis

PROFILE
15+ years of product design, delivery and support.  Self-driven, detail-oriented and quality-conscious.

	- Ability to conceptualize a product and drive the architecture to enable the concept.
	- Provided technical leadership and led teams (including geographically diverse, cross-functional teams) to deliver large systems software products with high quality.
	- Researched emerging technologies and influenced senior management to develop product roadmaps.
	- Well versed in all phases of the full product life cycle (concept to delivery) and proven ability to judge and make appropriate trade-offs.
	- Proven track record of consistently taking on and leading challenging new projects.

## Work Experience
### Staff Engineer @ Nutanix
Jan 2018 – Present | San Jose, California, United States
Technical Lead, Core Infra
Designed the entire Infra component (High Availability and Expand Cluster), implemented HA and prototyped Expand Cluster, mentored a junior engineer in finishing Expand Cluster.  

Designed and implemented the Redundancy Factor 1 (RF1) on ESXi feature, which allowed customers to run the Nutanix stack on single nodes. 

Technical Lead, OEM Platforms
Responsible for ensuring that hypervisor upgrades (primarily VMware’s ESX and KVM) worked on Nutanix appliances and software-only nodes.  Issues arose from undocumented changes in ESX, for example to the bootloader in ESX 6.7 and the partitioning scheme in ESX 7.0 which blocked our ability to upgrade.  As more than 50% of our customers use ESX, these were serious issues, but not a single issue has been reported in more than 3 years after the fixes went in. 

This group was responsible for the entire imaging process of a bare-metal server, starting with uploading a minimal Linux kernel to the server via IPMI, spinning up a hypervisor (KVM, ESX, Hyper-V, Xen), and then launching the Nutanix Controlling Virtual Machine on the hypervisor.

### Senior Principal Engineer @ Dell Force10
Jan 2013 – Jan 2018 | San Jose, CA
Redesigned the multicast RIB from scratch.
Implemented multi-VRF support for multicast.

### Software Engineer @ Fujitsu Network Communications
Jan 2011 – Jan 2012 | Sunnyvale, CA

### Software Engineer @ Cisco Systems
Jan 2003 – Jan 2011 | San Jose, CA
Cisco IOS - Network Software & Systems Technology Group

### Software Engineer @ Cisco Systems
Jan 2005 – Jan 2006 | San Jose, CA
Cisco QuantumFlow Software Development - Router group

### Software Engineer @ Cisco Systems
Jan 1999 – Jan 2003 | San Jose, CA
Gigabit Switch Router -  Service Provider Group

### Software Engineer @ Cisco Systems
Jan 1998 – Jan 1999 | San Jose, CA
Network Systems and Management Business Unit

### Software Engineer @ Cisco Systems
Jan 1994 – Jan 1998 | San Jose, CA
Workgroup Business Unit


## Education
### Ph.D. program in Computer Science
Duke University

### B.A in Computer Science
Sangamon State University

### M.A in Computer Science
Sangamon State University


## Contact & Social
- LinkedIn: https://linkedin.com/in/verghis-koshi-5760a23

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Source: https://flows.cv/verghis
JSON Resume: https://flows.cv/verghis/resume.json
Last updated: 2026-04-12