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Raghavendra Raju Ballur

Data Engineer @ NucleusTeq | Python, SQL, Spark, Kafka, Snowflake, AWS

Bengaluru

11+ years of work experience

NucleusTeq
Jan 20242 yrs 9 mosPresent

India

Launched key migration project with Data Architect and support for existing automation, enhancements. Fostered a culture of continuous improvement within the analytics and engineering teams by implementing agile methodologies and regular code reviews, resulting in faster development cycles. Conceived and delivered a scalable data pipeline using OpenMetadata to automate metadata updates; this initiative boosted metadata completeness across 5000+ data objects and reduced data silos. Constructed and then refined 2+ custom Airflow operators using Python, streamlining the processing of objects, fields and allowing for 1M+ updates on product every week Engineered the migration of 120+ automation workflows from on-premise servers to the AWS cloud, decreasing operational costs by 30% and improving system uptime to 99.99% availability. Collaborated with cross-functional teams to design and implement data dictionaries resulting in a 100% increase in data accuracy and integrity of 300+ objects metadata across the organization.
Indium Software
May 20221 yr 9 mosJan 2024

India

Architected automated data pipelines for eight insurance carriers, calculating monthly net profit/loss and delivering crucial financial insights, reducing manual reporting efforts for the actuarial team. Directed a team of 3 data engineers, implementing automated data validation checks resulting in a 99.9% accuracy rate. Integrated data cubes into the existing business intelligence (BI) infrastructure, empowering 50+ business users to generate customized reports and dashboards within the first week. Designed a real-time Tableau dashboard, which visualized insurance pricing elasticity and policy performance; this enabled executive stakeholders to identify trends and track 10+ financial metrics, resulting in more agile decision-making.
ValueLabs
Dec 20216 mosMay 2022

Designed and created Hive tables with partitioning, and bucketing. Engineered data pipelines to process 100+ GB of structured and semi-structured data from diverse sources, enhancing data accessibility for downstream analytics and reporting. Constructed 15+ complex Hive SQL queries to analyze customer behavior patterns, directly informing product development decisions. Imported data from AWS S3, RDBMS, and Web API into Spark RDD. Identified data issues and proactively recommended corrective actions by collaborating with the engineering team.
Cognizant
Jun 20183 yrs 7 mosDec 2021

Hyderabad, Telangana, India

Unit/Integration testing on existing code to resolve issues or modify existing code to accommodate new requirements. Developed complex SQL queries within Google BigQuery, extracting and integrating data from 15+ disparate databases, enabling the team to surface actionable insights on 10M+ customer records/week. Automated manual workflows through the Alteryx ETL tool to clean and process big data. Wrote SQL queries to perform data profiling, and data analysis and present the insights to the business. Design and Develop Complex Data Models and pipelines to integrate/convert raw data into publishing high-quality visualizations (Google Data Studio, Tableau). Worked with Program Managers to create technical strategies and frameworks.
Intelenet Global Services Private Ltd.
Nov 20152 yrs 7 mosMay 2018

Hyderabad, Telangana, India

Retrieved granular customer behavior data with SQL via Google BigQuery, identifying patterns indicative of churn, which informed targeted interventions to reduce customer attrition by 50%. Mined and synthesized data from 50+ sources using SQL and Excel, creating comprehensive reports on customer trends and preferences, which informed product development and marketing campaigns.
Wipro
Jun 201410 moApr 2015

Hyderabad

Raghavendra’s AI Stack

claude
claude
cursor
cursor
mcp
mcp

Education

Bachelor of Technology - BTech, Computer Engineering

Jawaharlal Nehru Technological University, Hyderabad

20132013

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Headline

Data Engineer @ NucleusTeq | Python, SQL, Spark, Kafka, Snowflake, AWS

About

As a Lead Engineer at NucleusTeq with over a decade of experience in analytics and data engineering, my focus has been on advancing scalable solutions and automation frameworks. Recent contributions include developing a robust data pipelines to process millions of objects to help the GTM team spot new opportunities. Previous roles at Indium Software and ValueLabs showcased expertise in designing automated data pipelines and real-time dashboards, empowering CXOs with actionable insights and improving operational efficiency.

Location

Bengaluru

AI stack

claude

cursor

mcp

Work experience

Lead Engineer at NucleusTeq, Jan 2024 - Present · 2 yrs 9 mos, India, Launched key migration project with Data Architect and support for existing automation, enhancements. Fostered a culture of continuous improvement within the analytics and engineering teams by implementing agile methodologies and regular code reviews, resulting in faster development cycles. Conceived and delivered a scalable data pipeline using OpenMetadata to automate metadata updates; this initiative boosted metadata completeness across 5000+ data objects and reduced data silos. Constructed and then refined 2+ custom Airflow operators using Python, streamlining the processing of objects, fields and allowing for 1M+ updates on product every week Engineered the migration of 120+ automation workflows from on-premise servers to the AWS cloud, decreasing operational costs by 30% and improving system uptime to 99.99% availability. Collaborated with cross-functional teams to design and implement data dictionaries resulting in a 100% increase in data accuracy and integrity of 300+ objects metadata across the organization.

Senior Data Engineer at Indium Software, May 2022 - Jan 2024 · 1 yr 9 mos, India, Architected automated data pipelines for eight insurance carriers, calculating monthly net profit/loss and delivering crucial financial insights, reducing manual reporting efforts for the actuarial team. Directed a team of 3 data engineers, implementing automated data validation checks resulting in a 99.9% accuracy rate. Integrated data cubes into the existing business intelligence (BI) infrastructure, empowering 50+ business users to generate customized reports and dashboards within the first week. Designed a real-time Tableau dashboard, which visualized insurance pricing elasticity and policy performance; this enabled executive stakeholders to identify trends and track 10+ financial metrics, resulting in more agile decision-making.

Senior Analyst at ValueLabs, Dec 2021 - May 2022 · 6 mos, Designed and created Hive tables with partitioning, and bucketing. Engineered data pipelines to process 100+ GB of structured and semi-structured data from diverse sources, enhancing data accessibility for downstream analytics and reporting. Constructed 15+ complex Hive SQL queries to analyze customer behavior patterns, directly informing product development decisions. Imported data from AWS S3, RDBMS, and Web API into Spark RDD. Identified data issues and proactively recommended corrective actions by collaborating with the engineering team.

Data Engineer at Cognizant, Jun 2018 - Dec 2021 · 3 yrs 7 mos, Hyderabad, Telangana, India, Unit/Integration testing on existing code to resolve issues or modify existing code to accommodate new requirements. Developed complex SQL queries within Google BigQuery, extracting and integrating data from 15+ disparate databases, enabling the team to surface actionable insights on 10M+ customer records/week. Automated manual workflows through the Alteryx ETL tool to clean and process big data. Wrote SQL queries to perform data profiling, and data analysis and present the insights to the business. Design and Develop Complex Data Models and pipelines to integrate/convert raw data into publishing high-quality visualizations (Google Data Studio, Tableau). Worked with Program Managers to create technical strategies and frameworks.

Data Analyst at Intelenet Global Services Private Ltd., Nov 2015 - May 2018 · 2 yrs 7 mos, Hyderabad, Telangana, India, Retrieved granular customer behavior data with SQL via Google BigQuery, identifying patterns indicative of churn, which informed targeted interventions to reduce customer attrition by 50%. Mined and synthesized data from 50+ sources using SQL and Excel, creating comprehensive reports on customer trends and preferences, which informed product development and marketing campaigns.

Risk Analyst at Wipro, Jun 2014 - Apr 2015 · 10 mo, Hyderabad

Education

Bachelor of Technology - BTech, Computer Engineering, Jawaharlal Nehru Technological University, Hyderabad