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Junaid Keller

@junaidkeller

Message

I am a Lead Data Engineer optimizing cloud data platforms for scalable analytics.

United States

Message

What I'm looking for

I'm seeking a senior/lead data engineering role to modernize cloud data platforms, build scalable ETL/warehouse solutions, mentor engineers, and drive governance and analytics to support business decisions.

I am a Lead Data Engineer experienced in designing, building, and optimizing scalable data systems and warehouses across AWS, Azure, and GCP. I specialize in both batch and real-time processing and have delivered enterprise-grade data lake and warehouse solutions.

I led a team of six engineers, migrated on-premises Teradata to Snowflake, and implemented metadata-driven ETL frameworks to reduce duplication and improve maintainability. I also generated CI/CD pipelines for data workflows to ensure consistent deployments and faster releases.

I built streaming solutions with Kafka and Spark, optimized large-scale Spark workloads, and developed interactive dashboards in Tableau, Power BI, and Looker to support real-time monitoring and executive insights. I partner with business units to design self-service analytics and provision curated datasets for data science.

I standardize data governance and disaster recovery planning while mentoring engineers and documenting best practices. I hold a Master of Computer Science and focus on modernizing legacy platforms to improve data accessibility and drive better business decisions.

Experience

Work history, roles, and key accomplishments

Current

Lead Data Engineer

Current

Cloudera

Jan 2022 - Present (3 years 8 months)

Led a team of six engineers and established an enterprise-grade AWS data lake to support batch and streaming workloads. Led migration from Teradata to Snowflake to improve scalability and implemented CI/CD pipelines and metadata-driven ETL frameworks to reduce duplication and accelerate releases.

AWS Snowflake Data Lake CI CD Tableau Data Governance Disaster Recovery

Senior Data Engineer

MongoDB

Jan 2019 - Dec 2021 (2 years 11 months)

Developed ETL pipelines with Apache Airflow and Python and optimized Spark workloads to reduce execution time; built Kafka and Spark Streaming solutions for real-time transaction monitoring. Implemented data validation, lineage tracking, and delivered Power BI executive dashboards for operational insights.

Apache Airflow Python Spark Kafka ETL Data Quality Data Lineage Power BI

Data Engineer

Alteryx

Mar 2016 - Dec 2018 (2 years 9 months)

Designed and maintained scalable ETL workflows using Talend and SQL and modeled data with star and snowflake schemas to optimize BI performance. Configured Azure Data Factory pipelines, automated recurring loads, and built Looker dashboards to enable self-service analytics for marketing and sales.

Talend SQL Data Modeling Azure Data Factory Looker Indexing Partitioning ETL

Associate Data Engineer

Hortonworks

Aug 2014 - Feb 2016 (1 year 6 months)

Supported ETL development to integrate sales and marketing data, optimized SQL queries for regular reports, and conducted data cleansing to standardize records. Built and deployed pipelines using Google Cloud Dataflow, monitored batch processing, and configured Jenkins jobs to automate ETL execution.

ETL SQL Google Cloud Dataflow Jenkins Batch Processing Performance Tuning