Gregory Fedynyshyn Email & Phone Number

With ExaGrid’s Tiered Backup Storage, each appliance in the system brings with it not only disk, but also memory, bandwidth, and processing power – all the elements needed to maintain high backup performance.

Burlington, Ma

- Citrix App Layering's underlying technology, called layering, enables all components of a virtual machine to be independently assigned, patched, and updated.- Built around this core innovation is a management system that encompasses application conflict resolution, image creation, application assignment, and integration technologies that can be used for any virtualization platform.- The primary goal of Citrix App Layering is to create a simple, easy-to-manage, application environment that enables anyone in IT to manage Windows and Windows apps using one interface and one seamlessly integrated technology, regardless of the underlying hypervisor or cloud infrastructure.

Acton, Ma

FittedCloud is a dynamic compute and storage resource provisioning and optimization software for public clouds based on patented technology. FittedCloud constantly monitors resource utilization of customer environments and adjusts resource provisioning to match application utilization. Resource resizing is done in a such way that there is no or least impact to customer applications. It’s architecture comprises of four key components:1. Information CollectorFittedCloud information collector constantly monitors customer environments, and collects utilization information for managed resources, which is then stored in a database.2. Decision EngineFittedCloud decision engine uses various algorithms to make optimization decisions based on the information collected.3. Optimization agentsDecisions made by decision engines are executed by the agents that run on instances. Agents also performs executions in a completely transparent manner wherever applicable. In some cases customers are required to confirm optimization actions before executing decisions.Agents also ensures that resource utilization is monitored constantly and any further adjustments (up/down) are performed as needed.4. Reporting toolsReporting tools created reports on utilization and cost savings across time frame

Greater Boston Area

Scale-out File, Object, and OpenStack AccessAccess all of your data at petabyte scale. The RING is the only storage platform that natively supports file, object, and OpenStack access in one consolidated system. The RING provides access points for a broad assortment of data types and natively supports NFS, FUSE, SMB, S3, and Scality REST, among many others. Each access point can be independently configured for high availability.My responsibilities included:Highly available, distributed, cache-coherent, performant, petabyte-scale object storage. Who could ask for anything more?

Lincoln, Ma

VeloBit was acquired by HGST in July. My work continues to regard SSD caching software, kernel development, and cache coherency in clustered environments.

- Server-based, all-software caching solution- Uses SSD, RAM, and compression to accelerate application performance- Installs on enterprise servers and configures in 60 seconds: no change to applications or storage- Accelerates the performance of business applications by up to 20x: - Accelerates the performance of storage infrastructureMy responsibilities included:Designed model for Cache Coherency.High-performance SSD caching software development.Linux and VMware's ESXi kernel driver development.Block-level and SCSI-level I/O request processing.Content-locality caching.Line-speed delta compression.High-efficiency/high-performance kernel-land programming.Kernel Thread management in ESXi (the version they offered is a weak substitute for Linux's kthreads, providing a single global lock so only one thread could be stopped at a time. If you stop one thread, and it tries to stop another, you get a deadlock).

Software development on FAA and USAF funded research projects.Developed visualization tool for determining effectiveness of an evolutionary computation approach to intelligently routing Air Traffic Flow.Developed various tools to display, managed, and replay Cursor on Target data used for enhanced battle-space awareness.

Master Of Science (Ms), Computer Science And Engineering

Specialized in Network Security, botnets, and botnet intrusion detection based on identifying botnet command and control (C&C) channels.

Master Of Arts (Ma), Computer Science

Specialized in Evolutionary Computation, Artificial Neural Networks. For example, in one project, I used co-evolution with a population.

Bachelor Of Arts (Ba), Computer Science

Specialized in Robotics, Evolutionary Computation, and Artificial Neural Networks. Minor in Applied Statistics.