Md. Rezaul Karim is a research scientist at Fraunhofer FIT, Germany. He is also a PhD candidate at RWTH Aachen University, Aachen, Germany. He holds a BSc and an MSc in computer science. Before joining Fraunhofer FIT, he had been working as a researcher at the Insight Centre for data analytics, Ireland. Previously, he worked as a lead engineer with Samsung Electronics' distributed R&D centers in Korea, India, Vietnam, Turkey, and Bangladesh. Earlier, he worked as a research assistant in the Database Lab at Kyung Hee University, Korea, and as an R&D engineer with BMTech21 Worldwide, Korea. Even before that, he worked as a software engineer with i2SoftTechnology, Dhaka, Bangladesh.
He has more than 8 years of experience in the area of research and development, with a solid knowledge of algorithms and data structures in C/C++, Java, Scala, R, and Python-focused big data technologies: Spark, Kafka, DC/OS, Docker, Mesos, Zeppelin, Hadoop, and MapReduce, and deep learning technologies: TensorFlow, DeepLearning4j, and H2O-Sparking Water. His research interests include machine learning, deep learning, semantic web, linked data, big data, and bioinformatics. He is the author of the following book titles with Packt:
Large-Scale Machine Learning with Spark
Deep Learning with TensorFlow
Sridhar Alla is a big data expert helping small and big companies solve complex problems, such as data warehousing, governance, security, real-time processing, high-frequency trading, and establishing large-scale data science practices. He is an agile practitioner as well as a certified agile DevOps practitioner and implementer. He started his career as a storage software engineer at Network Appliance, Sunnyvale, and then worked as the chief technology officer at a cyber security firm, eIQNetworks, Boston. His job profile includes the role of the director of data science and engineering at Comcast, Philadelphia. He is an avid presenter at numerous Strata, Hadoop World, Spark Summit, and other conferences. He also provides onsite/online training on several technologies. He has several patents filed in the US PTO on large-scale computing and distributed systems. He holds a bachelors degree in computer science from JNTU, Hyderabad, India, and lives with his wife in New Jersey.
Sridhar has over 18 years of experience writing code in Scala, Java, C, C++, Python, R and Go. He also has extensive hands-on knowledge of Spark, Hadoop, Cassandra, HBase, MongoDB, Riak, Redis, Zeppelin, Mesos, Docker, Kafka, ElasticSearch, Solr, H2O, machine learning, text analytics, distributed computing and high performance computing.