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Damini Jain

@daminijain

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Data Engineer skilled in ETL workflows and data analysis.

India

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What I'm looking for

I'm seeking a role that fosters innovation and allows me to leverage my data skills to drive impactful business solutions.

I'm a dedicated Data Engineer with a strong background in data analysis and engineering. Currently, I work at Truecaller, where I build and schedule scalable ETL workflows using Airflow, processing 6TB of data daily. My efforts in optimizing data pipelines have led to a 32% reduction in processing time, and I've successfully migrated customer-facing DAGs to hourly runs, significantly improving delivery times.

Previously, I served as a Data Analyst at Truecaller and Pepper Content, where I contributed to substantial revenue growth and operational efficiency. My work included designing dashboards that reduced mislabelled phone numbers and developing a content recommender system that streamlined workflows. I am passionate about leveraging data to drive business decisions and enhance user experiences.

Experience

Work history, roles, and key accomplishments

Current

Data Engineer

Current

Truecaller

Jan 2024 - Present (1 year 6 months)

Built and scheduled scalable ETL workflows in Airflow to process 6TB of data daily and hourly. Designed and implemented data cleanup procedures, achieving $23.5k in annual cost savings and reclaiming ~73TB of storage monthly.

Airflow ETL Spark BigQuery Kafka Data Pipelines SQL

Data Analyst

Truecaller

Jun 2022 - Dec 2023 (1 year 6 months)

Identified high-value business clients through Verified SMS data analysis, contributing $1M in revenue. Designed and deployed a dashboard to assist the customer success team in tracking and resolving mislabelled phone numbers.

Data Analysis Dashboard Design SQL Business Intelligence Data Visualization

Data Analyst

Pepper Content

Dec 2020 - Jun 2022 (1 year 6 months)

Built a content recommender system using the XGBoost classification algorithm, reducing operational workload by 25%. Automated the process of deadline assignment through a CatBoost regression model, streamlining the project lifecycle.

XGBoost CatBoost Machine Learning Data Analysis Dashboard Development SQL

Data Analyst

LexHeal

May 2020 - Oct 2020 (5 months)

Predicted the values of seven-segment displays using image processing and a Naïve Bayes classifier, achieving 85% accuracy. Created a retrieval-based health chatbot that supported over 10k users.

Image Processing Naïve Bayes Chatbot Development NLP

Intern, Enterprise Analytics

United Airlines

Aug 2019 - Dec 2019 (4 months)

Upgraded and transformed data for 15+ markets using SQL Server. Automated QA/user testing in Python, saving 3 hours of manual effort.

SQL Server Python QA Automation User Testing

Intern

International Institute of Information Technology

May 2018 - Jul 2018 (2 months)

Analyzed Bangalore’s urbanization trends over seven years using Maximum Likelihood Estimation. Achieved 97% accuracy and identified patterns affecting natural resources.

Maximum Likelihood Estimation Data Analysis Urbanization Trends Statistical Modeling

Education

Degrees, certifications, and relevant coursework

University of Petroleum and Energy Studies

B. Tech, Geoinformatics

Activities and societies: Student Partner, Cognizance 2018; Committee Member, Society of Exploration Geophysicists Student Chapter 2015 2017; Volunteer, Science Engineering Connect 2016 2017.

Studied Geoinformatics at the University of Petroleum and Energy Studies. Participated in various student organizations and volunteer activities during the academic period.