Aug 2019 – Jul 2021 · 1 yr 11 mos

• Working as a Staff Engineer (Technical Lead) for the Cloud Mobility Services R&D team (Nutanix Move) at Nutanix, Inc.
• Leading the development of a multi-cloud VM migration platform. 250k VM migrations completed.
• Designed an agentless & incremental migration methodology for migrating Azure virtual machine workloads to on-premise AHV clusters.
• Boosted the migration throughput upto 7x on high latency, lossy networks by leveraging KCP, an opensource UDP based reliable transport protocol.
• Added protocol-agnostic stream multiplexing capabilities to the data transport pipe.
• Designed and developed the Nutanix Move microservice stack & application life cycle management (one-click upgrade) using Docker container ecosystem. 6k upgrades performed.
• Lead the design and development of Nutanix Move, a multi-cloud virtual machine migration solution which supports AHV, ESXi, Hyper-V, AWS & Azure platforms.
• Technology Stack: Python, Go, SaltStack, Docker, VDDK, gRPC, AWS, Azure, ESXi, KVM

Apr 2017 – Aug 2019 · 2 yrs 4 mos

• Built a minimal Docker container host operating system based on Alpine Linux to ship Nutanix Move as a virtual appliance.
• Designed and developed a rules engine to programmatically define and predict workload requirements for database migrations (DB Xtract).
• Designed and developed core functionalities of a database migration solution which comprises of designer, deployer and migrator modules.
• Developed a task execution framework in Python with support for pause/resume/cancel operations and progress monitoring.
• Technology Stack: Python, Go, SaltStack, Docker, VDDK, gRPC, AWS, Azure, ESXi, KVM

Aug 2015 – Apr 2017 · 1 yr 8 mos

• Lead the design and development FitCheck, a cluster health diagnostics tool.
• Technology Stack: Python, ESXi, AHV

Sep 2012 – Aug 2015 · 2 yrs 11 mos · Bangalore

• Worked as lead developer in a team responsible for the development, testing and debugging of SAN & NAS data migration platforms.
• Developed data collection and reporting modules for the Inventory Collect Tool (ICT) used in 7-Mode Transition Tool (7MTT).
• Developed an XSLT based viewer for the inventory data collected by ICT.
• Reduced the overall memory footprint of the data collector module upto 3x and improved performance upto 2x.
• Developed a migration planner using PyQt to generate homogeneous & heterogeneous SAN migration plans which can be automated.
• Built a PyQt based interface for viewing and uploading data data collector bundle to a centralized NetApp filer.
• Technology Stack: Python, PyQt.

Feb 2009 – Aug 2012 · 3 yrs 6 mos · Chennai Area, India

• Actively involved in the design and development of a cloud computing platform that can solve the problems of application scalability, availability and fault-tolerance.
• Developed core services and Google App Engine compatible APIs for a PaaS platform.
• Developed a FUSE file system for malware analysis, backed by Samba shares.
• Developed various modules and components of a virtualization platform (FluidVM) targeted at VPS hosting providers. Supports Xen, OpenVZ and KVM hypervisors.
• Developed HyperVM API emulator for the virtualization management platform.
• Developed a management console for data center administrators to manage the virtual machines remotely.
• Contributed to Hypertable Python client library development using boost-python.
• Technology Stack: Python, C, XML-RPC, Protocol Buffers, FUSE, libvirt, Xen, KVM, OpenVZ, Hadoop/HFDS, RabbitMQ, Riak, Hypertable.