Big data with Python ATOS
6 days ago
Looking for experience in Big Data technologies.
• Mandatory - Hands on experience in Python and PySpark.
• Build pySpark applications using Spark Dataframes in Python using Jupyter notebook and PyCharm(IDE).
• Worked on optimizing spark jobs that processes huge volumes of data.
• Hands on experience in version control tools like Git.
• Worked on Amazon's Analytics services like Amazon EMR, Amazon Athena, AWS Glue.
• Worked on Amazon's Compute services like Amazon Lambda, Amazon EC2 and Amazon's Storage service like S3 and few other services like SNS.
• Experience/knowledge of bash/shell scripting will be a plus.
• Has built ETL processes to take data, copy it, structurally transform it etc. involving a wide variety of formats like CSV, TSV, XML and JSON.
• Experience in working with fixed width, delimited , multi record file formats etc.
• Good to have knowledge of datawarehousing concepts – dimensions, facts, schemas- snowflake, star etc.
• Have worked with columnar storage formats- Parquet,Avro,ORC etc. Well versed with compression techniques – Snappy, Gzip.
• Good to have knowledge of AWS databases (atleast one) Aurora, RDS, Redshift, ElastiCache, DynamoDB.
• Hands on experience in tools like Jenkins to build, test and deploy the applications
• Awareness of Devops concepts and be able to work in an automated release pipeline environment.
• Excellent debugging skills.
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