Raman Verma Email & Phone Number

Mountain View, California, Us

Worked in Storage layer of Kafka+ Built a tiered model of data storage for Kafka to optimize for cost and cluster operations.+ Rolled out and supported our tiered storage in production+ Designed and implemented cost efficient data management solution around backup and recovery of data.+ Good knowledge of concepts like Kafka APIs, replication.Supported Kafka fleet in production

San Francisco, California, Us

1. Work on Riverbed's enterprise storage solution called SteelFusion.2. Develop and maintain SteelFusion's core IP, i.e. the prediction algorithms that enable read IO performance across WAN.- SteelFusion uses block-level read ahead algorithms that underpin its patented BlockStream technology to consolidate branch data at the data center while projecting a working set to the branch.- Developed read ahead support for VMFS 6 and SteelFusion's NFS export configurations.- Developed and tested core in-memory structures for NFS configuration support.- Got introduced to VMFS and ext3 internals.- Analyzed memory overhead for various components of the module.3. Developed a new file system agnostic read performance engine based on FP-Growth algorithm, a Data mining algorithm proposed by:J. Han, H. Pei, and Y. Yin. Mining Frequent Patterns without Candidate Generation. In: Proc. Conf. on the Management of Data (SIGMOD’00, Dallas, TX). ACM Press, New York, NY, USA 2000- This system is a proposal for next-gen read ahead algorithms that promise re-usability, ease of development and maintenance.- Undertook C++ implementation of FP-Growth along with unit tests. Integrated the algorithm with SteelFusion's data path.- The algorithm can be re-purposed as an intelligent caching software or applied to completely different problems requiring pattern recognition.4. Worked on initiatives like utilizing cloud object storage as a backend storage for SteelFusion, utilizing REST interfaces.5. Developed SteelFusion's Virtual Machine Aware Backup solution.- VMAB consolidates backup and recovery process for all the branch offices into a single datacenter.- It simplifies backup process and generates CAPEX and OPEX savings.6. Periodically handled crashes/bugs reported by the customers.7. Improved SteelFusion's unit test infrastructure.- Introduced containers in the test infrastructure.- Introduced Google Test Framework.8. Tech: C++, Python, Unix like environment.

Mountain View, Ca, Us

+++ Senior Software Engineer :: Aug 2013 - Dec 20151. Designed, implemented Error handlers for Atlantis Deduplication FS write path.2. Implemented file copy service that uses Atlantis Deduplication FS metadata to copy a file.3. Memory optimizations for Atlantis Deduplication FS.4. Enabled TRIM feature for the File System.5. Systems Software Development involving scripting in Powershell, Python and Bash.6. High Availability clusters.7. Systems analytic and health data collection.+++ Software Engineer :: Aug 2011 - Aug 2013===Performance Engineering1. Storage appliance Performance analyses. Involved Login VSI benchmarking and custom tests.2. Analyzing test results, recognizing limits of the storage system and suggesting configuration or design changes to work around the problems. Also, trouble shooting various levels of a test environment involving data center elements(hypervisor + networking + storage) and linux system stacks.===Automation Projects=======3. Powershell based automatic set up of a Login VSI environment, involving vmware and Citrix elements of virtual infrastructure.(ESXi / XenServer / vSphere / View / XenDesktop). Reduced the setup time from a day to over an hour.4. Python based test bench to understand the limits/response times of a MySQL Db with a configurable number of worker threads distributed over the LAN, sending random data sets at a configurable rate, for insert/update and fetch operations. Individual project.5. Selenium Web Driver, Java and Junit based functional tester for a web based management platform. Used page object model. Individual project. Automated about 40% of test cases across 3 browsers.6. Powershell and Pester based tests for continuous integration with new builds of the storage appliance and the web based management server. Individual project.7. Python and selinux based PXE server to boot/install any machine in the LAN, over the network.

Project page for wiki and download:https://github.com/RamanVerma/taskqueuesI am developing a PThread based C library that will be the user space equivalent of linux kernel's workqueue infrastructure.Provides easy to use API to ...1. create a taskqueue with custom number of sub queues providing parallel execution of user defined tasks.2. add tasks to the queues.3. wait on barriers.4. gracefully destroy the task queues allowing all barriers to return and tasks to be finished.With all these functionality provided by a set of simple API, user space programs can save a lot of parallelization and synchronization complexities, thereby making them easy to write and maintain.The library also saves a lot of overhead on thread creation, and context switching because we create a set number of threads in the beginning and queue tasks to them as and when needed. Hence, if the workload is compute intensive, we can create (default) as many threads as are the number of CPU cores in the system and keep on queueing tasks to them. While we also have the flexibility to create a custom number of threads.

Batavia, Il, Us

1. Helped with the testing of the 100Gbps Advanced Networking Initiative(ANI) project.2. Major duties involved the setting up of test environment for high energy physics workload on ANI machines. It exposed me to grid softwares and the concerned security setup for grid computing.3. Benchmark the performance of GridFTP based file transfer on the testbed.

Chicago, Illinois, Us

1. Worked on a new distributed file system,FusionFS proposed by Assistant Professor Dr. Ioan Raicu. This file system will help the high throughput scientific workloads to be run at exa scale levels(current super computers work at peta scales)2. Designed, developed and tested a distributed hash table structure on the 5832 cores SiCortex machine at the Argonne National Laboratory, Argonne, IL. This hash table will serve as the meta data structure for the FusionFS.3. Our work was presented as a student reseach poster at the ACM symposium on HPDC 2011, San Jose.4. TCP / UDP socket programming and pthreads in C. Bash Scripting.

Chicago, Illinois, Us

1. Worked for the Graduate College Deans to generate various student reports using COGNOS and maintaining the department's databases.

1. Developed Mainframe applications for American Express's Charge Card business using COBOL, IMS and Db2. Worked through all the phases of software development life cycle. 2. Led a module of 8 developers from the start of 2008 doing technical and subject matter trouble shooting, conducting training sessions, handling feasibility and estimation for different projects.3. Major Project : Implemented a periodic reporting system to send the demographic data and financial behavior feed for Taiwan market customers to the local official credit bureau.

Master Of Science, Computer Science

Bachelor Of Engineering, Electronics And Communications

Education record