Sampath Maduri, Developer in Princeton, NJ, United States
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Sampath Maduri

Verified Expert  in Engineering

Business Intelligence Developer

Princeton, NJ, United States

Toptal member since November 2, 2023

Expertise
Business Intelligence DevelopmentSQLSnowflakeTableau Development
Bio

Sampath is a highly skilled business intelligence (BI) professional with over 15 years of experience in business intelligence, geospatial analytics, predictive planning, and statistical analysis. Proficient in tools such as Microsoft Power BI, IBM Cognos, Looker, QlikView, Tableau, and Table Manager 1 (TM1), he excels in databases, SQL, and the Statistical Analysis System (SAS). Sampath is eager to leverage his comprehensive skillset and embrace new, challenging projects.

Portfolio

Fiserv
IBM Cognos, Microsoft Power BI, Netezza
Girl Scouts of the United States of America
Microsoft Power BI, Looker
INTRICITY
Business Intelligence (BI), IBM Cognos, Microsoft Power BI, Looker, SQL...

Experience

  • IBM Cognos - 16 years
  • Business Intelligence (BI) - 16 years
  • SQL - 12 years
  • Microsoft Power BI - 5 years
  • Looker - 5 years
  • Snowflake - 4 years
  • Netezza - 3 years
  • Spotfire - 2 years

Availability

Part-time

Preferred Environment

Business Intelligence (BI), IBM Cognos, Microsoft Power BI, Looker

The most amazing...

...Thing I've accomplished throughout my career is my strong expertise in business intelligence and data analysis.

Work Experience

Business Intelligence Engineer

2022 - 2023
Fiserv
  • Installed Cognos in a distributed environment, on-premises and cloud.
  • Upgraded and configured Cognos servers from Cognos 10 to Cognos Analytics and assisted with Power BI design and development.
  • Migrated Cognos security from an on-premises environment to the cloud.
  • Collaborated with IBM Cognos support to fix unknown problems.
  • Designed and developed Power BI Models, reports, dashboards, Power apps, and Power Automate.
  • Used the following tools: Cognos Analytics 11/12, Power BI desktop, Power BI Server, Power BI Services, Power Automate, Power Query, Report Builder, SSRS, SSIS, and Cognos Analytics on the Windows platform.
Technologies: IBM Cognos, Microsoft Power BI, Netezza

Senior Business Intelligence Developer

2021 - 2022
Girl Scouts of the United States of America
  • Handled Looker development and administration, supporting upgrades, creating dashboards, and building complex data models using LookML, liquid parameters, and period-to-date (PTD).
  • Designed and developed Looker reports and modeled data using LookML code.
  • Provided support for approximately 14,000 Looker user profiles when upgrading from Looker 21 times to 22 times.
  • Created explorers and reused part of the LookMl models project. Assembled dimensions and measures using LookML. Implemented looker data modeling and derived tables using LookML.
  • Designed and developed Explorers, reports, looks, and dashboards using Looker, advanced reporting using dashboard merging, dashboard design, and development using Looker Studio, report enhancements, and query tuning.
  • Provided Looker administration, upgrade support, dashboard creation, and complex data model creation using LookML, liquid parameters, and PTD. Worked with different vendors and tools on integrating Looker Data dictionary using third-party tools.
Technologies: Microsoft Power BI, Looker

Business Intelligence Consultant/Architect

2012 - 2021
INTRICITY
  • Designed and developed IBM Cognos products for a company's client, the Wegmans Food Market. This included using Cognos framework modeling to create data modules and datasets for report development.
  • Migrated Cognos from Cognos 10 times to Cognos analytics, which involved migrating security, setting up the environment, and conducting testing using lifecycle manager.
  • Integrated Cognos with Google Maps, Esri maps, and demographic information for a proof of concept (POC) on analyzing customer and sales data.
  • Designed and developed Spotfire and demo reports.
  • Used the following tools: Power BI desktop and server, Power BI Services, Power Query, Report Builder, Cognos 10.1/10.2/11 (Analytics) on the Windows platform, Cognos TM1, Planning Analytics 2.0, Framework Manager, Spotfire, Cognos Mobile, Netezza.
Technologies: Business Intelligence (BI), IBM Cognos, Microsoft Power BI, Looker, SQL, Netezza, Snowflake

Business Intelligence Architect & Lead

2008 - 2009
Bank of America
  • Migrated Merill Lynch Cognos 8.2 reports, packages, cubes, events, dashboards, SDK application, security, content, and metrics to Bank of America Cognos 8.4 Version servers.
  • Analyzed, designed, and developed Cognos cubes, cubes to report drill through, and DMRs.
  • Designed Cognos reports to execute based on MQ events Autosys jobs.
Technologies: IBM Cognos, Business Intelligence (BI), SQL

Senior Business Intelligence Developer

2007 - 2008
Tennessee Valley Authority
  • Analyzed the Nuclear management system to design and implement the marts suitable for Cognos reporting.
  • Developed several new POC (proof of concepts) to show the new reporting concepts to Business.
  • Designed best practices for Cognos FM and Report Studio.
  • Used the following: Cognos 8.2, Framework Manager, Query Studio, Report Studio, Powerplay Transformer 7.2, 7.3, 7.4, Analysis Studio, Metrics Manager, Metrics Studio, Event Studio, Java, Oracle 9i,10G,11, IBM Datastage, Toad.
Technologies: IBM Cognos, Business Intelligence (BI), SQL

Experience

Cognos | Dynamic Date Prompts

Published an article titled Dynamic Date Prompts about a technique for designing prompt pages with automatic date rendering in IBM Cognos. This technique is supported in all versions of Cognos 8.x and 10.x.

Education

2016 - 2018

Master's Degree in Data Science, Computer Science

Western Govererns Univeristy - Salt Lake City, UT

Certifications

AUGUST 2017 - PRESENT

Oracle Database SQL Certified Expert

Oracle

Skills

Tools

IBM Cognos, Microsoft Power BI, Looker, Spotfire, Esri, Tableau

Languages

SQL, Snowflake

Paradigms

Business Intelligence (BI)

Platforms

Azure

Storage

Netezza

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