| Data Engineering | Spark, Scala, Python, ETL, SQL, PL/SQL, Luigi | 
| Cloud | AWS S3, EC2, EMR, ECS, RDS, RedShift, CloudFormation, IAM, DigitalOcean, Heroku, Azure | 
| DevOps | Terraform, Ansible, CloudFormation, Docker, Vagrant | 
| Containerization | Docker, Docker Compose, Docker Swarm, Docker Stack, Vagrant, ECS | 
| BigData Analytics | Hive, Impala, SparkSQL, Tableau | 
| Business Intelligence | OBIEE, Tableau, Matplotlib, Plotly, Cognos | 
| Distributed Computing | Hadoop, Yarn, HDFS, MapReduce, Spark, Yarn, EMR, Cloudera CDH | 
| ETL Development | Spark, Python, Scala, Apache NiFi, Informatica PowerCenter, Talend, SQL, PL/SQL, Shell Scripts | 
| Databases | AWS RedShift, HP Vertica, Oracle, MySQL, Postgres, Hive, SQL Server, Redis | 
| Programming Languages | C, C++, Python, Scala, Ruby, Julia, R, Clojure |