Kajal Kumari

Looking for a job

Data Engineer (PySpark)

I build scalable PySpark and AWS data pipelines for telecom analytics.

IndiaData Engineer (PySpark) at Mavenir

About

At Mavenir, I build scalable data pipelines for Airtel and T-Mobile using PySpark, AWS Glue, S3, Redshift, EMR, and Apache Airflow. I improved Athena and Redshift query performance by 40% while delivering large-scale analytics workflows. I've migrated telecom data from on-premise HDFS to AWS, built Kafka streaming pipelines, and automated dbt transformations with Airflow and GitHub Actions. I also worked on a Databricks-based telecom fraud detection pipeline using Delta Lake, Medallion architecture, partitioning, and broadcast joins.

Experience

Data Engineer (PySpark)
Mavenir
Designed and developed serverless ETL pipelines using AWS Glue, PySpark, and Lambda. Optimized analytics using Amazon Athena and Redshift, improving query performance by 40%.
PySparkAWS GlueS3RedshiftAthenaLambdaAirflowSpark SQLKafkaDBTDatabricks

Education

BRABU
Pursued a Bachelor of Computer Applications (BCA) from BRABU, Bihar, from 2018 to 2021, achieving 76%.
Pursued a Bachelor of Computer Applications (BCA) from BRABU, Bihar, from 2018 to 2021, achieving 76%.
BRABU
Completed 12th grade from BRABU, Bihar, in 2017-2018, achieving 55%.
Completed 12th grade from BRABU, Bihar, in 2017-2018, achieving 55%.
BSEB
Completed 10th grade from BSEB in 2016-2017, achieving 60%.
Completed 10th grade from BSEB in 2016-2017, achieving 60%.

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Kajal Kumari

Looking for a job

Data Engineer (PySpark)

I build scalable PySpark and AWS data pipelines for telecom analytics.

IndiaData Engineer (PySpark) at Mavenir

About

Experience

Data Engineer (PySpark)
Mavenir
Designed and developed serverless ETL pipelines using AWS Glue, PySpark, and Lambda. Optimized analytics using Amazon Athena and Redshift, improving query performance by 40%.
PySparkAWS GlueS3RedshiftAthenaLambdaAirflowSpark SQLKafkaDBTDatabricks

Education

BRABU
Pursued a Bachelor of Computer Applications (BCA) from BRABU, Bihar, from 2018 to 2021, achieving 76%.
Pursued a Bachelor of Computer Applications (BCA) from BRABU, Bihar, from 2018 to 2021, achieving 76%.
BRABU
Completed 12th grade from BRABU, Bihar, in 2017-2018, achieving 55%.
Completed 12th grade from BRABU, Bihar, in 2017-2018, achieving 55%.
BSEB
Completed 10th grade from BSEB in 2016-2017, achieving 60%.
Completed 10th grade from BSEB in 2016-2017, achieving 60%.

About

Experience

Data Engineer (PySpark)

Education

BRABU

BRABU

BSEB

About

Experience

Data Engineer (PySpark)

Education

BRABU

BRABU

BSEB

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