- Programming
- SQL
- Graph databases (mostly node4j)
- NoSQL (mostly Cassandra and MongoDB)
- R
- Python
- C++
- C#
- Java
- Hadoop
- Matlab
- Machine learning
- Artificial Neural Networks
- Deep Learning (Convolutional Neural Networks – CNN, Stacked Auto-Encoders – SAE, Deep Boltzmann Machines – DBM)
- SVM (Support Vector Machines)
- Random Forest
- Bayesian Statistics
- Natural Language Processing (NLP)
- Complex Networks