Rajesh Dasari

Rajesh Dasari Email and Phone Number

Tech Lead, Data Warehouse Specialist @ Tata Consultancy Services
Rajesh Dasari's Location
Palo Alto, California, United States, United States
Rajesh Dasari's Contact Details

Rajesh Dasari work email

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About Rajesh Dasari

• Having 16+ years of experience in software design, development, implementation and support of various applications.• Deft in managing complete SDLC with technical expertise in BIG DATA, Cloud, and MPP Technologies.• Proven track record of migrating complex large-scale BI/ETL applications from one data center to the other.• Proficient in INFORMATICA, Other ETL, and DW concepts.• Well versed with AWS, Azure, and Snowflake technologies. • Setup Informatica platform in AWS Cloud, completed POC with optimum results• Proficient in writing simple to complex queries in Vertica, SQL Server, and Oracle.• Reduced more than 60% run time of ETL jobs by applying compaction of HIVE tables. • Optimized Oracle SQL queries by using hints and rewriting queries. • Proficient in writing simple to complex programs in Linux shell scripting and Python.• Hands on experience on real time data tools like Kafka.• Dynamic, Strong communication, analytical, relationship management and co-ordination skills. • Lead multiple engagements parallelly overseeing 30+ engineers.• Handling various technical aspects like coding of modules, integration, monitoring critical paths and taking appropriate actions.• Track record of delivering high impact, cross functional efforts with exceptional collaboration and ability to positively influence others. Ability to manage large detailed projects to tight timelines. Responds well under pressures of time and uncertainty.• Interacting with various business stakeholders on daily basis, address their development, test, and production concerns, and work towards fixing them within deadlines.• Delivering and implementing project as per scheduled milestones and ensure compliance to quality standards.• Maintaining various applications and grooming the new resources in achieving excellence at application level.• Master in handling multiple tasks simultaneously being proactive and overcome challenges.• Preparing and presenting dashboards on weekly, monthly, and quarterly status progress to portfolio owners and IT directors.• Create, track, resolve production issues using Service Now• Perform trend analysis of Service Now tickets for various application, find patterns, identify root causes and work towards fixing them permanently.• Proficient with Waterfall and Agile project management methodologies.• Able to establish and provide clear communication to executive leadership• Have the ability to advise and lead teams through influence without positional authority.• Experience leading initiatives and working with a global delivery team.

Rajesh Dasari's Current Company Details
Tata Consultancy Services

Tata Consultancy Services

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Tech Lead, Data Warehouse Specialist
Rajesh Dasari Work Experience Details
  • Tata Consultancy Services
    Technical Lead
    Tata Consultancy Services Jul 2018 - Present
    Mumbai, Maharashtra, In
    Own, build, develop and deliver operations excellence for various programs.Strategize plan and structure team with right engineers to get optimum performance. Present status report on critical issues and deliverables directly to various IT directors, and VPs.Build and mature overall service transition of new projects and functionalities from project-based applications to operational state.Own and drive day to day operation issues to closure and provide status updates to VPs, and IT Directors.
  • Tata Consultancy Services
    Data Warehouse Specialist
    Tata Consultancy Services May 2014 - Jun 2018
    Mumbai, Maharashtra, In
    Client: Hewlett Packard IncResponsibilities:• Print Telemetry Application Development using Map Reduce framework , HBASE, Vertica, Sqoop, Oozie , Shell Script on MapR distribution.• Developed framework to ingest one time as well as incremental load for historical data from Oracle, MySql.• KAFKA cluster maintenance.• Reviewing Vertica design and ELT optimization for better performance.• Importing data using SQOOP from Oracle database to Hadoop.• Written Map Reduce programs to bulk load csv files into HBase tables.• Creating and validation of functional requirements.• Design, develop, test, document and implement ETL (Extraction, Transformation and Loading) modules, shell programs for the modifications and enhancements for Customer Data Repository application(CDR). Hadoop, Informatica Powercenter, Linux scripting are used as ETL tools for loading data into CDR.• Mentoring offshore team on various issues. To ensure smooth and successful deployments as per client standards.• To monitor and schedule the production jobs that load data into the Warehouse using Tidal.• Identify & Resolve issues in data warehouses and providing quick response to Client/Business Users.• To perform catch up/critical/special loads of data as per the business requirement for data consistency in the Data Warehouse.• Key contributor in stabilizing the Production Vertica cluster and implementing the governance process.• Data Quality assurance of all the feeds hosted.• Interacting with business and providing required information.• Coordinating with upstream and downstream systems on ensuring data flows happen on time.• Providing assistance to business on SAP BOE reports, other reporting related issues.• Key contributor in migrating various applications, including application, database, tidal, SAP BOE reporting servers.• Performed end to end testing, coordinating with various business stake holders and ensuring the application migration.• Roll-out of critical project changes.
  • Tata Consultancy Services
    Data Warehouse Speicialist
    Tata Consultancy Services Jul 2011 - Apr 2014
    Mumbai, Maharashtra, In
    Client: ADOBE SystemsAdobe has historically focused upon the creation of multimedia and creativity software products, with a more recent foray towards rich Internet application software developments. BI Informatica project mainly concerned with Informatica ETL jobs development, load maintenance, debugging of the B.O. report related problems, and rendering 24X7 customer support.Role & Responsibilities: Off-shore Team Lead of strength 9. • Team Management.• Direct Interaction with client for any development activities and critical issues.• Roll-out of critical project changes.• Identifying and fixing bugs.• Optimizing the ETL jobs.• Doing IQA and EQA for various projects.• Performing POC for critical projects.• Design, development and deployment of various DATABASE and Informatica changes.• Mentoring the new joiners in the team.• Maintaining the 24X7 system uptime.
  • Tata Consultancy Services
    Data Warehouse Specialist
    Tata Consultancy Services Oct 2010 - Jul 2011
    Mumbai, Maharashtra, In
    Client: NORTELNORTEL was a multinational telecommunications equipment manufacturer. QuICK application was NORTEL’s data warehouse and business intelligence application. In this project I developed workflows to identify the golden-silver product lists for various NORTEL’s customers and provided the same in various formats like csv, flat files and relational objects.Role & Responsibilities: • Direct interaction with client to gather requirements for development activities.• Creation of high level, low level design documents.• Developing SSIS Packages for the application using MS SQL Server 2005 BI Suite.• Efforts and Schedule estimation.• Organizing internal/external meetings for design reviews followed by logging and closing defects.• Creation of test cases and test plans.• Unit testing and Integration testing for the module.• Code review and finding violations according to the coding standards.• Roll-out of critical project changes.• Acting on critical bug fixes on code.• Client interaction for resolving issues.
  • Tata Consultancy Services
    Computer Programmer
    Tata Consultancy Services Sep 2007 - Oct 2010
    Mumbai, Maharashtra, In
    Client: TATA CommunicationsThis project involved implementation of Mediation System for Operational Support Services of Tata Communication Limited (TCL). Mediation System acts as an interface between the network elements like NAS/RAS and Billing System. Openet Fusionworks Activecharge product framework is used for Mediation and Geneva for Billing. Implementation of Authentication, Authorization and Accounting functionality for the Internet and Value added Services, provided to Retail customers of TCL.Responsibilities:• Monitoring various application servers.• Involved in critical project roll-outs.• Involved in migration of dialup customers.• Performed POC for critical projects.• Knowledge Transfer to new joiners and L1 associates.• Code optimization.• 24X7 up time of application servers.• Bug fixing.

Rajesh Dasari Skills

Core Java Java Software Development Life Cycle Amazon Web Services Requirements Analysis Big Data Pl/sql Team Management Linux Etl Tools Informatica Hadoop Vertica Oracle Apache Shell Scripting Sql

Rajesh Dasari Education Details

  • Chaitanya Bharathi Institute Of Technology
    Chaitanya Bharathi Institute Of Technology
    Computer Science

Frequently Asked Questions about Rajesh Dasari

What company does Rajesh Dasari work for?

Rajesh Dasari works for Tata Consultancy Services

What is Rajesh Dasari's role at the current company?

Rajesh Dasari's current role is Tech Lead, Data Warehouse Specialist.

What is Rajesh Dasari's email address?

Rajesh Dasari's email address is dr****@****ail.com

What schools did Rajesh Dasari attend?

Rajesh Dasari attended Chaitanya Bharathi Institute Of Technology.

What skills is Rajesh Dasari known for?

Rajesh Dasari has skills like Core Java, Java, Software Development Life Cycle, Amazon Web Services, Requirements Analysis, Big Data, Pl/sql, Team Management, Linux, Etl Tools, Informatica, Hadoop.

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