Kunal Rajguru

As a lead of Visa's Data Platform governance and security, built a robust Governance Team from the ground up and implemented Data Governance model that adhered to PCI-DSS standards.

Data Governance & Compliance: Designed and implemented data governance framework across multiple verticals and Spearheaded the design and implementation of Anomaly Detection Frameworks

Migrated Spark and Hadoop workloads from traditional Hadoop clusters where storage and compute are tightly coupled to Kubernetes and OpenShift environments allowing our business partners to run their workloads in a hybrid environment.

Platform Migration & Hardening: Led the migration from Cloudera Data Platform to an open-source Apache Hadoop solution

Legacy Cluster Stabilization: Resolved critical issues in HIVE, HBASE, HDFS, and YARN on legacy clusters, stabilizing systems and ensuring that all jobs met their SLAs consistently.

As a Technical Account Manager, handled strategic banking clients of Australia in Sydney. My role involved a

combination of technical, solution designing and project management skills.

• Made sure that the customer renewal and retention rate was high by ensuring that they derive

maximum value from Hortonworks/Cloudera products and services, also providing regular updates and

reports to both internal and external stakeholders.

• Served as the primary point of contact for major Australian banks, fostering strong relationships and

ensuring customer satisfaction. Worked closely with their leadership to understand their business

needs, challenges, and objectives.

Migrated their in-house HDP clusters to new stable major releases.

• Resolved all the security integration issues with corporate Active Directory and other LDAP protocols

• Conducted workshops and training sessions for customers on industry best practices for security

• Expert in handling Hadoop security issues (Knox, Ranger, Kerberos, AD/LDAP integration,

TLS/SSL). Good debugging and hands-on skills on the HDP stack.

• Resolve customer issues in a timely manner, develop action plans for more complex engagements.

• Partner with Engineering and Product Management teams to resolve complex customer issues and in-

turn help Hadoop stack to become more robust.

• Leverage internal technical expertise, including development engineers, knowledge base, and other

internal tools to provide the most effective solutions to customer issues.

• Create knowledge base content to capture new learning for re-use throughout the company and user

base.

• Actively participate in the Hadoop community to assist with support issues.

Assigned to anchor customer account to quickly resolve issues in MapR Distribution of Hadoop

• Expertise and hands-on in various Apache projects like Hive, Hue, YARN and their integration within

MapR's hadoop distribution.

• Excellent debugging skills and critical thinking in Hadoop and Linux systems

• Specialized in Hadoop Security which involves Kerberos setup for ecosystem and MapR's internal

security architecture

• Expertise in configuration and debugging of Oozie

• Filing Bugs, providing patch if upstream JIRA already exists, and working with Engineering and

product management according to the customers’ requirements.

I leveraged my technical expertise in Redhat Linux to resolve customer production issues. In addition to general

Linux troubleshooting, I specialized in Authentication issues. Focused on Active Directory and Red Hat

Enterprise Linux Integration, Red Hat Directory Server, SSSD/NSLCD/NSS_LDAP, IPA, Kerberos.

• Resolved Severity/Priority 1 issues in a timely fashioned manner and provided 24x7 production

support, best

• Developed best practices for troubleshooting and capacity planning.

• Expertise with Red Hat Directory Server Administration - Installed and configured RHDS. Hands-on

experience on LDAP and RedHat Directory Service to setup multi master/master slave replication.

• Troubleshooting, building solutions for RHEL in Identity Management group. Subjects include LDAP

or Active Directory integration using samba or SSSD. IPA, Directory Server, and Kerberos. Some

additional work with kerberized filesystems such as nfs and cifs.

• Responsible for setting up SSL communication and renewing SSL certificates in production and non-

production environments.

• Experience on user space daemons – sshd, auditd, rsyslog, cron, Vsftpd, autofs.

• Bug filing, providing patch if upstream patch already exists, checking the status of the bug with

Engineering and product management.

• Wrote knowledge base articles for the issues handled or new product technologies.

• Performed QA for new products prior to release, Acted as liaison between technical support and

development

DataCenter Services Practice group helped Sales and Pre-sales team for technical solution designing for

proposals, assessment/Due Diligence for the different projects, implementation of the compute environment as

well as in solving issues faced by different internal teams supporting clients.

• Configured Squid Proxy Server for AXIS Bank to block clients from accessing specific websites.

• Involved in the setup for Veritas Storage Foundation which was handed over to the Storage/Cluster

team for their further setups with the customer.

• HP Storage setup for a Domestic client, have worked in a team which was responsible for provisioning

the storage to the client, being a part of the team learned HP-EVA Storage and also worked on Brocade

SAN switches.

• Developed Internal Datacenter Service Practice Lab setup with RHEV, VMware, RedHat OS, NetApp

storages. Some examples include:

o Setting up RHEV-H and RHEV-M to test features of Redhat Virtualization 2.2 and RedHat

Virtualization 3.0

o Setting RHEL + KVM

o Implementing different servers as per requirement such as Openldap, Apache, Tomcat, Squid

o Implementing RHCS (Cluster Suite) for HA of applications.

o Implementing RHN satellite server for managing entire RedHat infrastructure in a better way.