About

Trinh Van Hung is a highly experienced Online Specialist with over 14 years of experience in the telecommunications industry. He is currently the Chief Technology Engineer at OCS Center in Viettel Group, where he specializes in Object-Oriented Analysis and Design. Trinh is skilled in Java, Networking, Linux, Telecommunications, and C++, and is a strong information technology professional with a Bachelor of Computer Science focused in Information Technology from Hanoi University of Technology. Trinh has an extensive background in the full life cycle of the software development process, including requirement gathering, analyze, design, development, and maintenance. He has a strong background in the development of telecommunication systems, particularly in designing large-scale systems. Trinh is experienced in designing RDBMS database, in-memory, and Key-value, and is an admin for Oracle database, TimesTen, and aerospike. He has good knowledge of administration for Hadoop, HBase, Zookeeper, Kafka, and Storm. Trinh is experienced in working on IDEs like NetBeans, Eclipse, SQL Developer, ER studio, and Enterprise Architect. He is also experienced in working with RHEL, Shell Script, and management tools version. Trinh has worked with protocols such as Diameter Credit-Control (DCC), Short Message Peer-to-Peer (SMPP), SMPP ++, and Man-Machine Language (MML). He has experience in multi-thread programming, multi-process programming, client-server, and master-slave. Trinh has strong experience in programming processing data on Hadoop, Hbase, Spark, Kafka, Apache Ignite, Hive, and Cassandra. He has worked on large-scale processes, including 800TB data history customer in CBA system 120 Node in Cluster. Benchmark reach to 10M tps accumulate for customer, 1.5M tps import hbase on Hadoop 9 server. Trinh has a patent in Java encode/decode map key value, which is faster than protobuf 30% and reduces message size 20% for integer value. He has also designed and developed an algorithm to generate VC card number used for mobile top-up in Telco, which is not duplicate in 100 years and not predictable. Trinh has experience in designing a voucher center (VC) and secure data using Java JNI to secure importance data using RSA and AES 256. He has sampled more accurately spark, Hive, and has kept errors of mean, standard deviation, percentile between the sample set and