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PROFESSIONAL SUMMARY
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Vakkalagadda Venkata Sai Tejeswar
Open To Work

Vakkalagadda Venkata Sai Tejeswar

Hyderabad

Work Preference

Job Search Status

Open to work
Desired start date: 2 weeks notice

Desired Job Title

ETL Developer / Software Engineer

Work Type

Full Time

Location Preference

RemoteHybrid
Location: Hyderabad, IndiaBengaluru, KA
Open to relocation: Yes

Important To Me

Work-life balanceWork from home option

Summary

Dynamic ETL Developer with proven expertise at Tech Mahindra, specializing in Informatica PowerCenter and IICS. Achieved 99%+ pipeline uptime through innovative data integration solutions and automated workflows. Skilled in SQL and adept at problem-solving, I enhance data quality and efficiency while meeting critical SLAs in fast-paced environments.

Overview

1
1
Certificate
5
5
years of professional experience
3
3
Languages

Work History

ETL Developer / Software Engineer

Tech Mahindra
12.2021 - Current
  • Led end-to-end SDLC for data integration projects, gathering requirements and deploying user training.
  • Architected Informatica PowerCenter workflows to maintain 99%+ pipeline uptime across 12 source systems.
  • Engineered incremental load and change data capture, improving ETL throughput by 18%.
  • Automated execution of ETL workflows using ASG Zena job scheduler to meet critical SLAs.
  • Created reusable transformations and mapplets, enhancing ETL development efficiency by approximately 20%.
  • Diagnosed and optimized ETL mappings, elevating data quality scores above 98% through systematic performance tuning.
  • Resolved production ETL pipeline failures within two-hour SLA windows, preserving 99% overall uptime.
  • Migrated legacy Informatica mappings to IICS Cloud Data Integration, enabling scalable cloud data pipelines.
  • Taskflow Orchestration & Scheduling: Designed and automated complex iics process flows and linear taskflows with custom decision steps, error-handling routines, and automated email notifications to guarantee 99%+ job reliability.

Work Availability

monday
tuesday
wednesday
thursday
friday
saturday
sunday
morning
afternoon
evening
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Education

B.Tech / B.E. - Computer Science

Anna University
Chennai
01-2021

Quote

You will recognize your own path when you come upon it because you will suddenly have all the energy and imagination you will ever need.
Sara Teasdale

Skills

  • Informatica PowerCenter and IICS
  • ETL techniques
  • Data integration
  • Pipeline design
  • Incremental loading
  • Full loading
  • Data cleansing
  • SQL databases
  • SQL scripting proficiency
  • Scheduling tools
  • SDLC methodologies
  • Agile frameworks
  • Power BI tools
  • Databricks utilization
  • SLA management
  • Cloud data migration
  • Performance tuning

Timeline

ETL Developer / Software Engineer

Tech Mahindra
12.2021 - Current

B.Tech / B.E. - Computer Science

Anna University

Certification

  • Google Cloud Certified Associate Cloud Engineer, Google, 11/30/26
  • Databricks Certified Data Engineer Associate
  • Claude Code 101

Accomplishments

  • Reduced ETL dataset refresh times by 30%: through advanced Power BI query optimization and incremental refresh strategies.
  • Improved ETL development efficiency by 20%: by creating reusable Informatica mapplets and standardized transformation libraries.
  • Maintained 99%+ data pipeline uptime: by proactively resolving production failures and implementing robust error-handling mechanisms.
  • Automated job scheduling for ETL workflows using ASG Zena: enabling consistent SLA compliance across critical business data loads.

PROJECT

Project # 1: Customer Analytics Client: Selective Insurance Technical Environment: Informatica 10.4/10.5, IICS, PowerBI, Cognos Project Duration: Dec 2021 to Present Role: ETL Developer

Roles and Responsibilities:

  • Participated in all SDLC phases: requirement gathering, design, development, testing, production, user training, and support.
  • Designed and developed mappings using Informatica Designer (Source Analyzer, Maplet & Mapping Designer) and needed Transformations per technical specs.
  • Created complex mappings to implement Business Logic for staging data loads; developed reusable transformations and mapplets.
  • Performed data manipulations using Informatica Transformations: Filter, Expression, Lookup (Connected/Un-Connected), Aggregate, Update Strategy, Normalizer, Joiner, Router, Sorter, Rank, and Union.
  • Ensured coding standards using the Undraleu tool and implemented required changes based on reports.
  • Resolved production and non-production failures promptly to meet SLAs.
  • Developed and monitored workflows using Task Developer, Worklet Designer, Workflow Designer, and Workflow Monitor.
  • Built Power BI Datasets based on user requirements.
  • Demonstrated strong analytical, communication, and multitasking skills in both independent and team environments.
  • Scheduled jobs via ASG Zena workstation to automate Informatica mapping runs per business requirements.
  • Prepared High-Level Design (HLD) and Low-Level Design (LLD) documents.
  • Participated in Agile activities including sprint planning and retrospectives.

PROFESSIONAL SUMMARY

  • Having 4+ years of experience in ETL/Informatica developer, combined with advanced skills in Power BI for reporting and analytics.
  • As an ETL developer I have worked on development of new mappings, Workflow’s and involved in enhancements which includes complete responsibility from development to production.
  • Developed standard and reusable mappings using various transformations like expression, Joiner, Source qualifier, router, update, lookup and filter in informatica power centre.
  • Experience in extraction, transformation and loading of data directly from different heterogeneous source systems like flat files, Excel, Netezza, Sql Server.
  • Experience in writing DDL and DML commands in different tables in SQL server 2014 and 2019.
  • Utilized Power BI to develop design and optimize data models to support business intelligence needs.
  • Provided Production Support for Power Centre, IICS, Power BI, Cognos jobs.
  • Excellent communication, inter-personal skills, analytical skills and strong ability to perform as part of a team.
Vakkalagadda Venkata Sai Tejeswar