# Krishnam Raju K > Principal Software Engineer @ OCI - Big Data Location: Fremont, California, United States Profile: https://flows.cv/krishnam ## Work Experience ### Principal Software Engineer @ Oracle Jan 2022 – Present ### Staff Premier Engineer @ Cloudera Jan 2021 – Jan 2022 | Santa Clara, California, United States ### Sr Premier Engineer @ Cloudera Jan 2019 – Jan 2021 | San Francisco Bay Area ### Premier Engineer @ Hortonworks Jan 2016 – Jan 2019 Would enjoy solving problems and providing scalable solution for major accounts. Some of the roles would be to do, 1. POC. 2. Benchmarking. 3. Cluster Monitoring and analysis. 4. Providing custom solutions. 5. Root cause Analysis. 6. Scalability test. 7. Resolving production issues. Etc.. ### Big Data and Hadoop Consultant @ Cloudwick Jan 2014 – Jan 2016 • Installed and configured the Hadoop ecosystem which includes Pig, Hive, HCatalog, Cloudera Manager, Pentaho. Hands on experience with setting up clusters on different distributions of hadoop such as, Cloudera, Hortonworks, MapR and IBM BigInsights. • Writing Oozie workflow to schedule jobs according to the business logic and resolving dependencies and also implemented scheduler. • Kerberized the ssh communication between the nodes in the cluster to prevent unauthorized access to the cluster. • Installed the monitoring systems such as Nagios to checks the health of the cluster. To keep checks on crucial reports I wrote bash scripts to monitor critical components and deliver instantaneous messages. • Used to migrate log data from server to Hadoop cluster using Flume. • Dumped the data from one cluster to other cluster by using DISTCP, and automated the dumping procedure using shell scripts. • I had the responsibility to filter out the noise from the obtained data and transfer the required fields to the Hive tables ### Lead Hadoop Admin @ Informatica Jan 2014 – Jan 2015 | Redwood City, California Hadoop cluster setup and its maintenance. Cluster setup includes major Hadoop stack such as HDFS 2.*, MRv2, Hive-0.13, Flume-1.4.0, Oozie3.*, Spark1.1 NoSQL cluster setup and maintenance which includes HBase0.96 and Cassandra 2.1 Hands on experience in maintaining different distributions of Hadoop such as Cloudera, HortonWorks, MapR, PivotalHD and IBM BigInsights. Providing support for Dev and QA teams to execute hadoop jobs and providing solutions. Finding Root Cause Analysis for issues breaking the jobs and fixing it Providing knowledge transfer to peer employees in associated teams. ### Hadoop Developer @ Blood Systems Inc. Jan 2014 – Jan 2014 ### Build and Release Engineer @ Prosper Marketplace Jan 2013 – Jan 2013 -Installed Nexus as Maven repository management tool. -Used JIRA as bug and defect tracking tool. -Implemented Jenkins as the continuous integration tool and installed all necessary plugins on need basis for the project. -Used putty/ssh to connect various UNIX boxes. -Deployed builds to different environments like TEST, PRE_PROD and PROD based on requests. -IBM Web Sphere and IIS are used as the deployment tools. -Performed smoke test after each build is deployed. -Reviewed production release documents for recommendations. -Lead and performed the maintenance and repair of applications in accordance with technical and functional specifications. ## Education ### Master's Degree in Computer Science Oklahoma State University ### Batchelor's of Engineering in Computer Science Sir M Visvesvaraya Institute Of Technology ## Contact & Social - LinkedIn: https://linkedin.com/in/krishnamraju4u --- Source: https://flows.cv/krishnam JSON Resume: https://flows.cv/krishnam/resume.json Last updated: 2026-04-12