Kaleswararao Ravela
Irving,TX
Summary
Highly skilled and result-oriented Data Engineer with 15 years of experience in designing, testing and maintaining data management systems. proficient in various Big Data and Cloud Technologies and Programming Languages. Seeking to leverage my Technical and Analytical Skills effectively to fulfil the Data Engineering role.
Overview
19
19
years of professional experience
Work History
Consultant
Verizon Data Services
02.2022 - Current
- VGrid is an application which helps Verizon data migration to GCP and development solutions
- Enable & support GCP services and handle developer issues
- Developed and created Looker Studio for the downstream teams based on the business requirements
- IAC/DevOps activities (Ansible, Terraform module creations, Jenkins refinements)
- Secret key management and Handling Service key rotations and worked on Cloud resource provisioning (DP, VM, Cloud SQL etc.)
- Developing these enablements (using Python) in GCP using CF, Composer, Storage, BQ, Data fusion, Data flow, Data warehouse, Database design and implementation, pub-sub and other data services
- Working on Data Enrichments and Transformations, storing the required data in Looker post-loading into BQ
- Developing FinOps optimization solutions
- Creating Airflow job scheduling based on the Application dependency and resolving stage flow issues
- Creating BQ dashboards based on the Business Trends Requests and supported during enhancements
- Creating CI/CD for data transformations as per Product Owner requirements and loading the data into BQ using Airflow jobs
- Designing and scheduling Airflow jobs using ESP Scheduler, provided continuous monitoring and support
- Analyze and develop reports for the customers discontinuing banks based on banking trends
- Developing the solution report to the company for improvement in banking service
- Transferred data from a Data Source using Sqoop to HDFS to perform analysis
- Used Scala for spark streaming and SPARK for ongoing transactions of customers
- Developed Scala applications using the Spring tool suit environment
- Used Shell scripting to analyze the data from the ERP source and processed it to store it in HDFS
- Stored data from HDFS to respective Hive tables for further analysis in order to identify the Trends in data
- Identifying and developing solutions to implement toil reduction efforts (developing auto heal solutions in GCP, automating redundant manual efforts and developing solutions in GCP)
- Worked on Linux server and Unix shell scripting commands
- Develop new GCP log base (or custom) alerts or enhance existing alerts based on the ticket resolutions
- Engage with Google for product-related issues
- Advise the Data Engineering teams to tune the application workloads to bring down the platform operating cost
- BQ Query optimization and identifying the opportunities to optimize the queries
- Develop Knowledge Base documents for future issue resolutions
- Provided call support for Production outages.
- Managed multiple deadlines across several businesses to meet dynamic needs of multiple clients
Sr. Consultant
AppsTek Corp
12.2017 - 01.2022
- Provide customer satisfaction and improve sales opportunities by integrating data
- Involved in building multi-node Hadoop Cluster Installed and configured Cloudera Manager Managed and analyzed Hadoop Log Files
- Configured Hive Megastore to use Oracle database to establish multiple user connections to Hive tables
- Imported data into HDFS using Sqoop
- Experience in retrieving data from databases like MYSQL and Oracle into HDFS using Sqoop and ingesting them into HBase
- Developed Hive queries to analyze data in HDFS to identify issues and behavioural patterns
- Involved in complete Software Development Life Cycle (SDLC), including Analysis, Design, Implementation, Testing and Maintenance with Agile Methodology
- Coordinating with Project Management for new server builds, Operating system upgrades and patch installations
- Configuring Jenkins Plugin Management, securing & scaling Jenkins’s nodes, integrating code repositories, troubleshooting performance issues, testing phases, & analytics to achieve CI/CD
- Creating Jenkins Pipelines for DEV, UAT & Production Environments
- Leading Scrum & Sprint Planning, designing Yearly Road Map for Deliveries along with Business
- Installation and configuring Domains, Servers, Clusters, machines, node manager configuration
- Deployed applications (WAR, JAR and EAR) using WLST Service Provisioning System
- Configured JDBC, Data source, Multi pools, JMS Servers, queues and topics
- Worked on Certificate generation and installation/renewals using SSL and Key tool for WebLogic
- Involved in resolving production issues by working closely with infrastructure team (DBA, Development) when application-related, or deployment cycle problems are encountered
- Interacted with Oracle Technical Support Team in resolving WebLogic critical issues and used to follow up on opened case/service tickets concerning Incident Severity
- Worked on setting up end-to-end SOA environment, including installing WebLogic, and SOA and configuring OHS (Oracle HTTP Server) and OSB
- Worked on WebLogic patch set update to PSU11\PSU12\PSU13 for all Production/SIT/ UAT/Testing environments
- Worked on creating SPLUNK dashboards for security, application and infrastructure-related issues providing charts and graphs to analyze and quickly troubleshoot
- Worked on Oracle Forms and Reports server issues troubleshooting and resolving problems.
Consultant
Verizon Data Services
04.2009 - 12.2017
- Verizon customers call their local business office to request order, billing, sales and service information
- These transactions are handled today within Service Center, CCVRS or Verizon.com
- New Speech VRU will contain options that allow qualified Verizon Consumer, Business and Receivables Management customers in eastern region to complete their self-service transaction without going through Service Center or CCVRS
- SVRU application integrates with Genesys platform and Verizon.com
- Responsibilities:
- Design, Build, Configure and Maintain infrastructure in AWS environment
- Implement DevOps with a stack of key technologies Jenkins, AWS, Ansible and Git
- Building and implementing cost-effective solutions using various AWS services (s3, EBS, EC2, VPC) and traditional technologies (Jenkins, Ansible and GIT)
- Good Knowledge about AWS IAM (Identity Access Management) service and implemented for AWS resource integration
- Provide timely and efficient technical support for AWS cloud infrastructure including EC2, S3, RDS and VPC
- Collaborate with cross-functional teams to resolve complex issues and ensure high availability of AWS services
- Conduct in-depth root cause analysis (RCA) to identify and address recurring issues, leading to a reduction in downtime
- Create and maintain comprehensive documentation of AWS configurations and troubleshooting procedures
- Perform AWS routine maintenance tasks, including patch management and security updates
- Stay up to date with AWS best practices and emerging technologies to provide proactive recommendations to clients
- Participate in on-call rotations to provide 24.7 support and resolve critical issues promptly.
- Supported clients with business analysis, documentation, and data modelling.
- Analyzed problematic areas to provide recommendations and solutions.
- Managed multiple deadlines across several businesses to meet dynamic needs of multiple clients.
- Analyzed problematic areas to provide recommendations and solutions
Consultant
Verizon
10.2004 - 03.2009
Education
Master of Science - Master of Computer Application
Nagarjuna University
Guntur,AP,India06.1996
Skills
- Skill Set
- Cloud:
- AWS, GCP, Big Query, Airflow
- Bigdata & Analytics: Hadoop, Spark, Hive, Oozie, Kafka
- Programming Languages: Python, Unix Shell Scripting
- Professional Summary
- Production support engineer providing 24/7 expert technical support and consultation for GCP Cloud services, AIRFLOW, Looker, WebLogic, JBoss, MQ Series Messaging, Apache and Sun One web servers running on Linux, Solaris 8/10
- Proficient in Google Cloud Platform (GCP) and AWS, with expertise in GCP Cloud services, AIRFLOW, Looker, Looker Studio, Spark, Oozie, Big Query (BQ), Data Proc, and Google Cloud Storage (GCS)
- Managed environments DEV, SIT, QA, UAT and PROD for various releases and designed instance strategies
- Well-versed with deployment, migration, upgrades and maintenance of middleware applications
- Expertise in scheduling Airflow jobs in Oozie, ESP Scheduler
- Expertise in Jenkins like Plugin Management, Securing and scaling Jenkins nodes, integrated code repositories, troubleshooting performance issues, test phases & analytics to achieve CI/CD
- Experienced in finding the Memory Leaks and adjusting the JVM Heap Sizes and GC Parameters
- WebLogic and JBoss Administrator experience, with knowledge in clustering, JMS, Connection Pools, J2EE Deployments, Thread Dump and Heap Dump Analysis
- Good experience in upgrading service packs and installing bug fixes/patches on Application Servers
- Great knowledge in Creating and configuring Clusters, Load balancing, high availability and fail-over solutions for Oracle WebLogic Server
- Expertise in deploying and troubleshooting applications in Development, Test and Production environments
- Deployed applications on multiple WebLogic Servers and maintained Load balancing, High Availability and Fail-Over functionality
- Experience in Configuring and Administering JDBC resources (Data Sources, Connection pools), and JMS resources like Connection factories, Queues, Topics, Distributed destinations, Message bridges, Foreign JMS servers etc
- Experienced in capacity planning and performance tuning of J2EE applications and platforms, using Wily Introscope
- Good at Agile Process, leading Scrum & Sprint, involved in roadmap design and Business
Timeline
Consultant
Verizon Data Services
02.2022 - Current
Sr. Consultant
AppsTek Corp
12.2017 - 01.2022
Consultant
Verizon Data Services
04.2009 - 12.2017
Consultant
Verizon
10.2004 - 03.2009
Master of Science - Master of Computer Application
Nagarjuna University
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