Candidates About

 

Chandra Sekhar

SUMMARY:

IT Professional with 20 years of experience 8 years of development and 12 years of Design, Architect, implementing and integration experience. Worked on trending technologies and projects using Oracle products and Open Source Products. Managed Onshore-Offshore teams, delivered as per the SLA, played key role in evaluating, establishing and conducting proof of concepts at enterprise scale. Passionate for emerging technologies and future trends.

 

·         Implemented Elastic-search cloud, secure Encryption, Decryption EDI and cipher technologies.

·         Practical experience in PS2 and PS3 Oracle Identity and Access Management Implementations, SOA, WebLogic, Fusion middle-ware infrastructure, Database’s, Oracle E-Business Suite administration.

·         Environment tuning, implement Backup & Recovery strategies, Disaster Recovery strategies for the databases and servers. Shell Scripts Automation.

·         Optimizing WebLogic and managed servers. Deploying Docker containers.

·         Hands-on experience working with all flavors of Unix Operating systems.

·         Experience in providing economical, robust, redundant, low-maintenance solutions.

·         Exposure to SOX audit, Dev Ops, and various SDLC (CMM, CMMI, Waterfall, ISO) compliance methodologies and models.  Provide solutions on closed and open source technologies as per the customer requirements.

·         Experienced in building private, public and community clouds for Oracle and custom applications. Played a key role in evaluating, establishing and conducting proof of concepts of various apps and CI into the cloud environment.

·         Experience installing, configuring, testing Hadoop ecosystem components, Micro Services. Experience in setup Configuration of PCF, RBAC in IAM, App deployment with PCF Cli

 

 

PROFESSIONAL EXPERIENCE:

 

MTA (Metropolitan Transport Authority), New York, NY                                                             Feb 2015 to Current

Middleware Architect

 

Elasticsearch Implementation:

•          Strong understanding and hands on working with ELK Stack.

•          Architect, Design and Implemented Elasticsearch cluster's, in DEV, Stage, UAT, and PROD.

•          Proposed new architecture in avoiding split-brain problem.

•          Deep understanding of Search APIs, DSL query language.

•          hands on experience using command line CURD APIs and search APIs on data repositories with curl

•          Good knowledge of RESTful API, JSON, QDSL, Python, Bash, CURL

•          Provided key recommendations in optimize Primary and replica shards.

•          Deep understanding and hands on knowledge of Input, output, filter and codec plugins and bulk data load.

•          Good hands on experience with Kibana in creating Visualizations and generating dynamic/static dashboards and discovering Elasticsearch indices’.

•          Troubleshoot Elasticsearch issues and application data issues with PeopleSoft integrations.

•          Deep understanding and tuning complete environment from OS, kernel, firewall, network, Java Heap, shards, and yaml configurations of the ELK stack.

 

DevOps Architect - Continuous Integration implementation:

 

•          Maintain and improve CI/CD environments. Define, design and implement DevOps solutions which includes reference architectures, estimates and costing.

•          Deploying Docker Containers , provisioning container cluster, configure firewall to allow container traffic, Managing and running services in the swarm for Dev, Stage, UAT and prod, Developing swarm and compose scripts and automate deployments.

•          Design, Setup and manage cryptographic keys for encryption and decryption with vendors (agencies, banks, suppliers), in guidelines with New York Cyber security minimum bit strength requirements and data-in-transit must incorporate Federal Information Processing Standard (FIPS) approved algorithms for data encryption strength and digital key length for signatures and public keys and allow only the min supported AES ciphers and SHA hash. Only approved ssh versions and PGP are supported as per the guide lines.

•          Troubleshoot encryption and decryption issues with vendors and monitor for security breaches compromised files with bad encryptions/decryptions with sensitive financial data exchanges.

 

OAIM implementation:

OAIM includes Planning for Virtual server resources, memory, disk allocations, firewall, and F5 load balancer. Install of OIM OAM (OAIM) in DEV, Stage, UAT, PROD. Conduct POC in DEV and propagate the changes to other environments in the order. Administration of Web Logic server clusters, OAM integration with People Soft, Siebel and UCM. PS2, PS3 identity life cycle management, document Life cycle management, Firewall documentation, kernel tuning, Architectural blueprints and server topology planning includes OHS and Web gate install and configure the web farm for reverse proxy. Configure psft Employee reconciliation, User reconciliation and campus connector configuration and schedule the full basic reconciliation between OIM and people soft. Upgrade old 9.x OIM to the latest IDMLCM environment, troubleshooting issues, WebLogic and Fusion Middleware Administration.

•          Build virtual environments and install and configure Oracle Identity Manager for provisioning and reconciliation with other resources in the enterprise.

•          Load balance the cluster and optimize/tune Fusion middleware environments.

•          Advanced Container networking and setup.

•          Working with vendor in making sure OIM HRMS connector supports current MTA PeopleSoft version. Working on the connector issues and Bugs with Oracle support in resolving them.

•          PeopleSoft listener configuration with the HRMS Connector.

•          Compiling the java jar files that are specific to the integration of the connector with PSFT HRMS.

•          Connector Implementation in OIM using PeopleSoft standard messages that trigger the corresponding OIM provisioned resource.

•          Provisioning and De-Provisioning/Identity Workflows.

•          Performed User provisioning and reconciliation from Flat file, DB and AD.

•          Performed issue resolution with respect to these target systems.

•          Designed and updated security and password policies for Identity Management.

•          OAM Implementation and SSO Integration with PeopleSoft, UCM, Siebel.

 

Other Projects Implemented:

•       Apache to OHS Migration

•       Oracle Application Express (Apex)

•       OID (LDAP) administration and handling user requests

•       Deploy Aura Player in Fusion middleware environment

•       Implemented Certificate store and imported Java certs for Oracle SES

•       Extensively worked with Developers, BA’s and end user team during System integration test for OAM SSO implementation

•       Implemented SSL certs for Enterprise Manager 11g and 12c and securing the Console with SSL Certificate.

•       Register all OHS instances with WebLogic domain and register Web farm in enterprise manager 12c for monitoring

•       Implemented Automatic system startup/shutdown scripts for WebLogic, Node Manager, OAM cluster OIM cluster, and OHS instances

•       Tuning Fusion middleware components like WebLogic, JVM and managed servers

•       Upgrading and new Implementations of OFR12c (Forms and Reports) with Fusion middle ware infrastructure.

 

 

AMEX, Phoenix, AZ                                                                                                             Feb 2014 to Feb 2015

Cloud Architect Consultant

 

Project:  Build and setup container environment for Analytics.  Amex wanted to collect customer usage data through their vendor channels and analyzing the data for better support, product delivery and product suggestion.

 

•          Responsible to architect, setup, build the container environment using Docker, PCF and other open source tools and automate. Troubleshoot the network issues between the containers monitor application performance scale the containers on demand using web based and command line tools in building Amex Cloud with Cloud foundry and Cloudera technologies.

•          Played a key role in evaluating, establishing and conducting proof of concepts and in align with project SLA, Produced comprehensive architecture strategy for environment mapping for pcf.

•          Install and setup of the Cloudera Hadoop environment and the PCF environment.

•          Good understanding of PCF architecture, CLI deployment and on demand scaling of apps.

•          Hands on experience in installation, configuration, support, maintain and administer Hadoop Clusters.

•          Hadoop cluster capacity planning, performance tuning, cluster monitoring, troubleshooting, manage backup and disaster recovery of the Hadoop data. Strive to improve the cluster maintenance with good practices.

•          Capable of working completely with command line tools in Linux, Docker, HDFS, LDAP, networking, firewall security. Automating daily activities and tasks. Patch environment with security and upgrade patches, work with product vendors in escalating enterprise level issues related to functionality, security and patches.

•          Build and maintain code repositories and code migrations using CI/CD strategies (GIT, SVN, CSV, Jenkins)

•          Design and deploy scalable and HA solutions on AWS cloud services EC2, S3, RDS, ELB, Auto scaling, OIM, OAM

•          Install setup and configure Ansible, write YAML format playbooks.

•          Developed strategy for cloud/virtualization migration and implementation best practices.

•          Design and build Enterprise data lake (EDL) with connectors to data sources and interfacing with Cloudera search.

•          Transform huge amounts of customer financial data from variety of sources into analytics databases.

•          Create datasets with numpy for the analysis and deploy the build into the pcf containers.

•          Performed high level requirements gathering and solution design, migrate PaaS and SaaS instances between client private clouds - Java, J2EE, .NET, Ruby, LAMP, Apache, RDBMS, Oracle, SQL, MySQL, MongoDB, Unix/Linux and Encryption.

•          Design, build, deploy and manage Docker containers, Implement security framework and advanced/complex networking between the containers in public, private and hybrid clouds.

•          Identify applications that can be ported to cloud, gather requirements and work with stake holders in completing it.

•          Container management and Orchestration for optimal use of the virtual environments to suite the workloads.

•          Build/configure YAML manifest, deploying build packs, scaling and managing CF instances. Structuring orgs, spaces, users and roles in the CF environment.

•          Troubleshooting cloud foundry instances by checking logs from app, DEA, staging, build and event’s.

•          Structure session affinity for the compatible http requests and maintain session data persistence for other applications. Practical experience in installing BOSH, Director, vagrant, deploying CF on BOSH in Virtual Box and in AWS cloud environments.

 

 

Cobham, USA                                                                                                                                     Jan 2014 to Feb 2014

Implementation Consultant

 

•          Implement Unibar ELS enterprise Barcode solution and integrate with Oracle WMS in EBS R12. x.

•          Install DSI ELS Enterprise and ELS Director Barcode system and EBS DBA activities. Configure Unibar barcode system to work with Oracle Applications that uses XML for label printing.

•          Setup Unibar ELS Enterprise Synchronous and Asynchronous modes with EBS R12.1 and R12.2

•          Implement LDAP integration. Https configuration for secure access by configuring the enterprise Certs to developers.

•          Design test Label in ELS Enterprise and test end-to-end integration with Oracle WMS in EBS by printing test label to Zebra printers.

•          Work with Network and Firewall team in opening relevant IP’s and ports in setup Zebra G420T label printers.

 

 

Scholastic Inc., New York, NY                                                                                              Sep 2013 to Jan 2014

Implementation Consultant

 

•       Reporting directly to Director of IT services, worked on evaluating AWS environment, investigate the apps that can be ported to AWS environment and come up with plan.

•       Implemented Data security, encryption and Cyber Source Tokenization in financial transactions and decommission VeriSign CC processing, managed day-2-day activates like EBS Clones, administration, troubleshooting and solving technical issues related to Cyber Source, enhancements with on-shore and off-shore team.

•       SSL implementation, Storage allocation recommendations, worked with business analysts and development team in fine tuning long running Concurrent jobs and SQLs

•       Implemented Workflow Notification, Purge workflow data, Data Corruption and Cleanup, fine tune ASM Cloning process, Middle Tier migration from HP-Unix to Linux

•       Planned/Implemented EBS migration from Physical Hardware to Amazon Cloud services.

•       Set up the test servers on Amazon for Oracle E-Business Suite R12 environment.

 

Environment: ERP environment with RAC, ASM, multiplatform UNIX flavors, AWS provided services in R12 Upgrade

 

 

Allscripts, Atlanta, GA                                                                                                          Oct 2012 to Sep 2013

Solution Implementation/Administration Cloud Expert

 

•          Provide implementation and administration services to Allscripts, re-implementing R12, implementing Fusion middleware and Salesforce integration on VMware and Oracle Database expert services, tuning, Java, environment assessment, architect and implement Scalable solutions for growing business needs. Implement OAM, OIM, OID (LDAP) and integration with E-business suite user and HRMS connectors. Design, architect and implement various infrastructure solutions as per Allscripts virtual business model.

•          Install and configure OAM and OIM and implement OIM connectors for E-business suite user management and HR foundation, work closely with functional, BA’s and Developers for customizations.

•          Install all aspects of Oracle DB, FMW, R12 EBS, SVN, GC other custom products and tools with various topologies and configurations.

•          Experience in deployment in SOA suite, creation of Data sources, JMS destinations and maintenance of production SOA instances.

•          Fusion middleware cloning.

•          Plan project deployments in EBS R12, Fusion middleware.

•          Convert business requirements into physical designs and discuss with cross team BA’s and implement in line with corporate security.

•          Fine tune/resize JVM’s on FMW (SOA, WEBLOGIC, and JROCKIT), BEPL, JTA, Composite and JDBC timeout parameters, EBS-R12 (OACORE, FORMS, OC4J etc.), fine-tuning other managed servers and components. • Plan and implemented DR, Backup & recovery procedures with RMAN, VM-Snap and VMDK clone’s • defining the scope of various stages of implementations in conjunction with project scope.

•          Good hands on and practical performance tuning expertise of the R12 EBS, Fusion middleware on VMware.

•          Setup configure configurator to work with Oracle Quoting SSO integration with SFDC.

•          Full life cycle end to end implementation of Oracle EBS R12, Fusion Middleware and SFDC along with Integrations.

•          Conduct meetings with various teams’ technical, functional, storage and infrastructure in implementing the project scope; Oracle EBS R12 with custom code integration with OBIEE, fusion and SSO integration with SFDC.

•          Oracle ASM, Oracle EBS shared application Tier, ASM to ASM clone and ASM to non ASM clone

•          Raw devices clone with VMDK at various implementations.

•          RAC on a 2 node DB Tier, 3 node internal Middle tiers and 2 node external middle tiers in POC; Oracle EBS internal external node segregation with limited exposed responsibilities.

•          Oracle EBS DMZ implementation

•          Implement, administer and tune Oracle Fusion middle ware components SOA, Web logic, ODI, OAIM and Coherence

•          SFDC integration with fusion middleware and Oracle EBS

•          SSO integration with SFDC and Allscripts

•          Setup configure and support SVN version control system.

•          Work with vendors on technical issues that are affecting the project release dates.

•          Plan and implement GPG encryption with banks in data exchange.

•          Project/Manage VMware host/guest machine SLA for various projects.

•          Backup solutions to various stages of project in CDH and Fusion during data conversions.

•          Used various tools in the project for various activities for (ex: Rev-stream, lftp/sftp, vertex, and svn)

•          Follow Allscripts project management (PM) standards at various stages of project implementations.

•          File zone setup and implement for various inbound/outbound file transfers.

•          Implement GPG/PGP encryption and setup auth keys with the banks/clients in exchange of the files and data security.

•          Automate exchange of files via ODI file mechanism

•          Do various functional and technical deployments in EBS, FMW as per the Business requirement.

•          Work on the releases as per the SLA.

•          At the peak of the project, there are 20 EBS instances and 8 FMW (SOA, WebLogic, and ODI) Instances with EBS-FMW and EBSFMW-SFDC integrations.

•          Repurpose the VM’s, EBS and FMW environment once the release completed as per the SLA.

•          Experience in setting up continuous builds and continuous deployment tools like Hudson/Jenkins, Implemented Jenkins continuous integration in SOA environment.

 

Environment: Allscripts IT business model which runs on Virtual environment catering resources to various project on OEL 5, it has Oracle EBS 11i and re implementing on R12 with Fusion middleware and Sales force integration.

 

 

INTERNATIONAL PAPER (IP) New York, NY                                                                  Nov 2005 to Sep 2012

Sr. Systems Engineer/Dev

 

•          Manage and maintain Oracle E-Business Suite that includes; Oracle Database expert in Production Support, Patching, E-Business Suite Upgrades, Product/module Upgrades, New product/module Implementation, Cloning Oracle Apps for Projects and development activity, Database upgrades, DB Tuning other components are Clear orbit, Noetix, unibar, elm etc.

•          Maintain servers in sync with Oracle E-business suite requirements analyze and implement OS tuning, file system tuning, redundant disk management at storage level. User management, software installation for new project requirements there are too many things to mention, I will high light some of the projects/activities

•          Upgraded E-Business suite from 11.5.7 to 11.5.9 to 11.5.10.2 (CU2), Release 12 is in the pipe line (initial trails are successful Upgraded E-Business Suite Database from 8i to 9i (9.2.0.7) and 10g.

•          Upgraded E-Business suite character set from Western European to Unicode.

•          Implemented Spanish, Polish in E-Business Suite for Mexico and Poland sites.

•          Implemented robust DSS solution taking away load off the production and simultaneously serving the DSS as live production DB backup in the event of production DB failure via Physical standby concept.

•          Migrated from Jinitiator to Java Native Plug-in.

•          Maintain and configure customizations, Printers (PASTA, Post Script), zebra printer setup and OS utilities in support of E- Business Suite environment.

•          Upgrade, configure and integrate unibar to support 11i EBS

•          Translate logical designs into physical designs and implement database and application in line with corporate security.

•          Merged 3node system into 2-node system and cloned 2-node system into single node for auditing purposes, various nodemerging strategies.

•          Migrated Oracle E-Business Suite from HP UX to Sun OS8 and storage from Emc-Symmetrix to EMC-DMX.

•          Upgraded Barcode solution (clear orbit), Noetix to the supported versions of E-business suite

•          Successfully coordinated Sun OS upgrade from 8 to 9 and to Sun OS 10

•          Disaster Recovery (DR) site implementation and test the backups against full E-Business suite recovery and restore complete business activity in the event of disaster to production environment, DR synced via Snapshot.

•          Patched E-Business suite with various security/one-off/family-Pack patches and product/module enhancement patches for various modules for example XML Publisher.

•          Monitoring various activities in the DB like dead locks, hit ratios, User activity, request monitoring via OAM etc.…, Monitoring for hot spots in the file system and tuning them accordingly.

•          Re implemented/corrected broken Rapid clone and OAM in 11i production from previous inheritance.

•          Redesigned poorly implemented Production instance file system with more redundant and robustness considering future maintenance.

•          Clone production to development instances with rapid clone is a frequent monthly activity for various projects and product enhancements for Dev’s and BAs team...

•          Backup Production database with rman and test the backup against the recovery.

•          Implemented shell scripts for monitoring DB activities for tablespace, top processes etc., and long running Apps requests with db locks etc.…

•          Extensive knowledge on working with Vendors like Oracle Support, HP, Sun OS and other third-party products.

•          Expert in documenting the project from Assessment stage through the completion of the project with all the technicalities and coordinating with/among various teams and vendors in completing the project.

•          Implement continuous integration tool Jenkins with SVN in java development environment.

•          In-depth knowledge of Apache Subversion (SVN) and Jenkins/Hudson Continuous Integration Server – Installation, Configuration, Design and Administration, plus experience of extending and integrating these tools with other systems.

 

Environment:  Shorewood packaging use to have its own data center initially running HP UNIX, Emc Symmetrix and Oracle E-Business suite11i, they later decided to integrate the Shorewood data center in the main data center at migrating environment to Sun-Solaris, Emc DMX.

 

 

GLOBAL SOURCES, Singapore                                                                               February 2003 to May 2005 Senior Database Administrator/Team Lead/Dev (Consultant)

 

HEWLETT PACKARD, Singapore                                                                         July 2002 to January 2003

Senior Database Administrator/Team Lead/ Dev (Consultant)

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