Telecommunication engineer, husband with two kids, writer of five books and blog, Perl/Python/Ruby on Rails (RoR)/Lua programmer, currently working and living in Singapore.
Bachelor of telecommunication engineering, graduated from Telkom University Bandung, Indonesia.
Ericsson circuit switched (CS) domain (MSC-s and M-MGw) and recently assigned for Ericsson packet switched (PS) domain (Native/Virtual SGSN-MME, Native/vIPWorks (iDNS, eDNS, AAA)), Perl, Ruby on Rails (RoR), Lua, HTML, CSS, Javascript, Highcharts, Graphviz, LaTeX, Shell Script, GNU/linux System Administrator, Mail server, DNS server, Web server, SFTP server, iptables.
Handling Singapore Telecommunications (Singtel) for GMSC modernization project, MSS (MSC-s and M-MGw) software upgrade, GMSr implementation and verification, M-MGw hardware expansion, IN nodes integration, VAS nodes integration, cVAS nodes integration, Native/Virtual SGSN-MME, Native/vIPWorks (iDNS, eDNS, AAA).
Preparing MSC-s Data Transcript, M-MGw Script, Native/Virtual SGSN-MME script, Native/Virtual IPWorks (iDNS, eDNS, AAA) script, Methode of Procedure, and executing the MOP. Creating software for operation/maintenance and KPI/Statistics.
Performed core switch (CS) network audit and optimization for XL Axiata, developed software for supporting core network assessment and created network topology based on data from MSC-s.
Interoperability testing (IoT)/multi vendor verification for the diameter signaling in IMS network. Configured all protocol stacks for diameter signaling on Diameter Routing Agent (DRA) and Diameter Edge Agent (DEA) machine using redhat server (HP blade) for testbed and production.
Proof of concept MSC-s Blade Cluster for Smart Communications Inc. Philippines. Produced design for MSC-s, CCR excel sheet, and Data Transcript (DT).
Delivered Perl programming language training.
Network roll out for Telkomsel operator (GSM and UMTS projects). Prepared design, MSC-s DT and M-MGw script, deployed on production nodes.
Network roll out for Telkomsel operator (GSM and UMTS projects). Prepared design, MSC-s DT and M-MGw script, deployed on production nodes.
Performed RNC and BSC rehoming based on customer needed for rebalancing processor load, capacity of MSC-Server, M-MGw, and SGSN.
Software upgrade SR10 to SR12 for monolithics MSC, HLR, and EIR, hardware expansion and replaced faulty hardware, patches implementation.