Raj Kumar

• Provided end-to-end technical support for Spark Platform, resolving issues and challenges on the Databricks unified analytics platform.
• Served as a Designated Support Engineer for critical customers, ensuring proper handling of support cases and feature requests in accordance with SLAs.
• Troubleshot and resolved complex customer infrastructure issues related to the Databricks platform.
• Offered best practices guidance for custom-built solutions developed by Databricks customers.
• Reviewed and assisted in achieving solutions for complex customer use cases by researching and reproducing them in an in-house lab.
• Assisted customers in integrating BI tools (Power BI, Tableau, Tibco, FiveTran, etc.), job orchestrator tools (Apache Airflow, Azure Data Factory), version control systems (Azure DevOps, Github), and JDBC/ODBC clients with Databricks.
• Addressed issues related to third-party data source integrations with the Databricks environment, including Oracle, Snowflake, Teradata, Redshift, etc.
• Provided suggestions for improving performance and optimizing costs in customer-specific environments.
• Assisted customers in implementing best practices and automating use cases using Databricks REST APIs, Databricks CLI, Terraform, and custom initialization scripts.
• Demonstrated ownership and coordinated with engineering and escalation teams to achieve resolution of customer issues and requests.
• Developed, coached, and mentored the team to excel in their roles.
• Delivered enablement sessions on new features to team members.
• Identified knowledge base candidates, assigned them to engineers, reviewed, and followed up until publication.
• Regularly reviewed cases assigned to engineers, ensuring case hygiene and meeting SLA compliances.

• Installing and Administering Linux servers in 24x7 environments
• Implementing Quotas on users and groups
• Package and Patch Management
• Adding and deleting Packages and patches according to the requirement
• Experience on File system and Disk management
• LVM management - Creatig, extending, removing the LV's and VG's etc
• Monitoring System Resources virtual memory, adding addional swap space as needed
• Scheduling cronjobs and managing cronfile with crontab
• Security implementaon through ACL
• Managing backups by using dump, restore, dd , tar, and cpio
• Installing various application as per user basis
• Tuning the kernel parameters as per the requirement
• Change Management and schedule the plan activity
• Monitoring production applications to identify hardware or software issues before they impact the production operations
• Problem management - finding and providing the RCA for the problem within the SLA
• Configuraon of FTP and remote applicaons like ssh, scp, telnet
• Amazon Web services (AWS): Work Experience as a member of AWS Build Team
• Knowledge on the various components of AWS
• Managing and working on AWS Management Console
• Working knowledge on creatingEC2 instances
• Knowledge on creating Auto-scaling and elastic Load balancing
• Managing creating users, user identity , user permissions by using IAM service
• Experience on creating customized AMI by using existing instance and deploy instance through AMI
• Experience on coping AMI across the region using snapshot
• Knowledge on AMI permissions
• Experience on creating and deleting volumes
• Exposure on attaching and detaching volumes to EC2 instances
• Setup and managed EBS Volumes and EIP to EC2 Instances
• Experience on creting snapshots and managing snapshots
• Experience on Migrating Volumes from one region to another region using snapshot
• Knowledge on setting up multi factor Authentication(MFA)
• Experise on assigning policies and roles for users and groups using IAM
• Experience on creating and managing user accounts in AWS
• Good exposure on creating and deleting buckets in S3
• Experience on setting cross region replication between two buckets on different regions and sharing the objects on both the buckets by enabling Versioning
• Experience on securing the buckets and objects by applying ACL and Bucket policies
• Create/Managing buckets on S3 (CLI) and store db and logs backup, upload images for CDN serve
• Knowledge on creating VPC and adding EC2 instances, creating NACL, Security groups, crating subnets, route tables
• Knowledge on creating NAT and internet gateways for existing Subnets on VPC.

• Installing and Administering Linux servers in 24x7 environments
• User management, Creating and managing user account, groups and access levels
• Implemenng Quotas on users and groups
• Package and Patch Management
• Adding and Deleting Packages and patches according to the requirement
• Experience on File system and Disk management
• LVM management - Creating, extending, removing the LV's and VG's etc
• Monitoring System Resources virtual memory, adding addional swaps pace as needed
• Scheduling cronjobs and managing cronfile with crontab
• Security implementation through ACL
• Managing backups by using dump, restore, dd, tar, and cpio
• Installing various application as per user basis
• Tuning the kernel parameters as per the requirement
• Change Management and schedule the plan activity
• Monitoring production applications to identify hardware or software issues before they impact the production operations
• Problem management - finding and providing the RCA for the problem within the SLA
• Configuration of FTP and remote applications like Ssh, scp, telnet
• Roles and Responsibilities on Cloud
• Work with various teams to migrate on-prem applicantion to Cloud or new/expansion application on cloud
• Provide formal Cloud training and handover to app support team for go-live applications
• Provide Cloud knowledge/training and leverage Cloud technologies/features adoptions for app support and/or other teams which required
• Provide in-depth Cloud expertise where required
• Monitor and Maintain CI/CD infrastructure
• Develop and maintain secure, resilient enterprise-grade cloud paterns and processes in tandem with developers.