Data & AI Engineer with 4+ years of experience building scalable data platforms and cloud pipelines using Python, PySpark, SQL, Snowflake and AWS. I enjoy solving complex engineering problems, optimizing systems, and building AI-ready data infrastructure. Seeking product-focused teams where I can own challenging problems and build impactful products.
Looking for a job
Sanjai B
@sanjaib
Data Engineer with 4 years of experience specializing in building, scaling, and optimizing production-grade data pipelines, cloud warehouses, and ETL.
IndiaWhat I'm looking for
I’m a Data Engineer with 4+ years of experience building scalable data pipelines and cloud data solutions. My core skills include Snowflake, Python, PySpark, SQL, AWS, Airflow, and dbt.
In my current role, I work on Snowflake and AWS data solutions, focusing on pipeline optimization, incremental processing, data modeling, and production performance. I’ve optimized workloads processing 50M+ records, reducing query runtime by up to 90%, and improved pipeline latency and cloud compute efficiency.
I’m interested in Data Engineering roles where I can solve challenging data problems, work with modern cloud and distributed data technologies, and build reliable, high-performance data platforms.
Experience
Work history, roles, and key accomplishments
OT
Current
Data Engineer
Onward Technologies
Aug 2025 - Present (1 year 2 months)
Root-caused and resolved a recurring performance issue in a production Snowflake pipeline by replacing a 53M+ record recursive CTE with a materialized view, reducing query runtime by 90%. Engineered Snowflake stored procedures, orchestrated incremental refreshes with Streams and Tasks, and architected end-to-end pipelines using Dynamic Tables and Apache Iceberg on AWS S3.
Optimized PySpark and SQL logic on a 15M+ record ingestion pipeline, cutting runtime by 25% and reducing compute cost. Engineered ETL pipelines with AWS Glue and PySpark, processed high-volume clickstream logs with Amazon EMR/Spark, and automated Snowflake operations using AWS Lambda.
Education
Degrees, certifications, and relevant coursework
ST
St. Joseph's Institute of Technology
Bachelor of Engineering, Electronics and Communication
Bachelor of Engineering in Electronics and Communication from St. Joseph's Institute of Technology, completed in 2022.
Tech stack
Software and tools used professionally
Availability
Looking for a job
Location
IndiaAuthorized to work in
Salary expectations
2000k+ INR
Social media
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