Head of IT Architecture & Solutions (Sr. Solutions Architect )
Indosat Ooredoo
Total years of experience :23 years, 11 Months
• Designing an AI-NLP powered ChatBot application for Customer Services, integrating digital channels (Facebook Messenger, Line, Telegram) and Telco OSS/BSS system e.g. CRM, Charging and Billing, Campaign Management System, and Big Data to improve Customer Service efficiency reduce complaint handling and resolution time, and improve customer experience.
• Designing and architecting cloud-based Digital Customer Engagement Platform that integrates with Siebel CRM to enable digital omni-channel capability in Indosat Customer Care, to increase Customer Care Agent productivity, reducing Customer Care cost, and improve customer engagement experience
• Designing and architecting cloud-based Mobile Sales Force Automation (SFA) that integrates with Siebel CRM to enable Sales mobility and increase Lead-to-Cash productivity and efficiency, as part of Indosat Ooredoo Business to Business (B2B) Transformation initiative
• Designing and architecting cloud-based Corporate Helpdesk and Service Assurance System with Workforce Management and Tracking capability
• Designing and architecting new Card Management System, that enable end-to-end automated Card Production, Distribution, Inventory, and Activation
• Designing and architecting UMB Self-care System, that provides capability to create Trouble Ticket, monitor status, and submit suggestion through UMB channel
• Designing and architecting end-to-end automated provisioning for Voice over IMS services and Voice over LTE services, integrating Siebel CRM, Product Catalog, Customer Order Management, and Resource Order Management and Provisioning and Activation System
• Architected, designed and implemented service fulfillment, provisioning, and activation systems integrating BSS systems (Siebel Order Management, Comptel Fulfillment, Service Catalog) with HLR, RIM Blackberry, IN, PRBT, and IN.
• Architected, designed and implemented enhancement of Loyalty Management System (LMS) to resolve processing latency issue, performance degradation issue, and request sequence issue during high traffic - by implementing architecture changes, including migrating to Virtual environment, internal architecture enhancement, and traffic distribution optimization.
• Architected, designed and implemented enhancement of VAS Registration System to resolve performance issue and high processing latency during busy hour - by enhancing application architecture, segregating revenue (registration) and non-revenue services (quota info query), segregating real-time traffic with batch transaction, implementing inflow traffic control at SMPP layer, and refactoring Java Web Services, ESME RX, and ESME TX components.
• Architected, designed and implemented enhancement in Mobile Application, by migrating the current 2-Tiers architecture to more secure and scalable 3-Tiers architecture, with virtualization.
• Architected, designed and implemented enhancement in Mobile Selfcare Portal, by capacity augmentation, implement high availability (N + 1 architecture) in all of internal component, segregating bulk and online traffic and notification, and application logic enhancement.
• Architected and designed a Digital Hub solution to integrate Billing and Customer Care System with global OTT and Application Market
• Architected, designed, reviewed business critical services (First Time Recharge, Prepaid Registration, Physical and Electronic Topup, Special Voucher Unlock, and VAS Registration ) - analyzing hop-by-hop of the service flow, identifying control point of the application involved, the TPS of the serving apps node, the implementation details of the application integration, design or implementation flaw, and performed latency analysis to identify and eliminate choke points and provided recommendation in the form of hardware augmentation, architecture and design change, and operational simplification.
• Architected, designed and implemented service orchestration using Tibco Business Work and Enterprise Messaging Services, integrating all OSS/BSS service nodes.
• Performed Capacity Roadmap exercise to established current TPS, CPU and Memory utilization as baseline, analyzed business projection, and provided short term and long term recommendation on capacity augmentation by hardware augmentation and application configuration optimization.
• Developed and updated Requirement Analysis Document, Solution Architecture Document, Technical Architecture Document, Deployment Architecture Document, and Environment Specification Document for OSS/BSS application project.
• Designed and developed OSS/BSS landscape for Wimax Service Provider, consist of Billing System (based on Oracle BRM), Provisioning System, Order Fulfillment System, Point of Sales System, Customer Acquisition Portal, Customer Relationship Management, and Payment Gateway
• Architected, design, implemented Postpaid and Prepaid Billing System for Wimax Service Provider based on Oracle Billing and Revenue Management System (Oracle BRM)
• Designed and implemented Service Inventory System and Order Management System portal based on IBM WebSphere, integrated with Oracle BRM
• Designed and implemented Customer Acquisition and Self-Service Portal, integrated with Oracle BRM and PCRF
• Designed and implemented Service Provisioning Systems, integrating Oracle BRM with AAA Server, PCRF
• Designed and implemented Billing Payment Gateway for processing Billing Payment, Service Subscription Payment, and Package Topup Payment, integrating Oracle BRM with external/Bank Payment Gateway
• Designed and developed Postpaid and Prepaid products package and service offering
• Designed and developed Topup solution for Postpaid and Prepaid subscribers
• Designed and configured components, rating group, charged network element (SGSN, GGSN) of Data Charging Gateway system
• Configured data package, MMS, and SMS content rating
• Designed and configured internal components of SMSC and fine-tune SMPP, SS7, and SIGTRAN parameters
• Configured ESME/Large Account for applications connected to SMSC
• Configured Recipient Address Range Routing for Person/Mobile to Application SMS traffic
• Configured SMSC retry profile, error-based retry scheme, and default retry scheme
• Designed and configured internal component and interface in MMSC
• Configured SS7 protocol (MAP, TCAP, SCCP, MTP) in USSD Gateway
• Configured new USSD short codes
• Configured SMPP connectivity to UMB
• Configured UMB menu and location-based menu (based on VLR GT and Cell ID)
• Architecture change of Bulk SMS to increase SMS processing and delivery capacity
Responsible for Inmarsat's mobile satellite services and products planning and execution throughout the products lifecycle including gathering and prioritizing product and customer requirements, defining the products vision and strategy, and working closely with technical, sales, marketing and support to ensure revenue and customer satisfaction goals are met.
Follow and analyze industry trends, as well as collect and research competitive information to ensure a leadership position for the Inmarsat's mobile satellite products.
Work closely with engineering team for product development and with the commercial team to ensure consumer acquisition and other growth strategies.
Plan and manage product enhancement to improve user experience and match with competitors’ product offering, and maintain Inmarsat mobile satellite product competitiveness.
Develop clear product-related documentations, such as product and service descriptions, user guides, installation guides, business and technical proposals, and user briefing notes.
Respond to user feedback on issues effecting revenue, and raise these with wider product management team.
Interface with network development, network operation, and satellite operation functions to ensure product network-related status is monitored and regulated.
Define products strategy and roadmaps for individual Value Added Service (including Short Message Services, Multimedia Mobile Services, Mobile Payments, and Location Based Services).
Conceptualize and implement a broad based VAS and IN services strategy towards growing the VAS business revenue and increase the VAS traffic.
Lead the development of business and marketing requirements for VAS and IN products and ensure these are linked to business priorities and business strategy.
Build business plans for products, define revenue and cost projections per VAS, and gain management buy in for investment in new products and projects.
Work with operating companies and other group functions to ensure market research, analysis and competitive intelligence is undertaken and utilized in product development.
Drive the definition of detailed marketing requirements in the form of service description documents based on value proposition briefs from Product Managements.
Design mobile messaging systems (SMSC, Message Application Router, and IP Transfer Part), IP backbone, SS7, and SS7 over IP routing configuration, including dimensioning SMSC and SS7 link capacity to meet customer traffic requirement.
Manage technical issues and incidents on mobile messaging system (SMSC, Message Application Router, and IP Transfer Part) to constantly meet the Service Level Agreement (SLA) and improve quality of service delivered to customer.
Manage mobile messaging systems consisting of eight multi-node clusters SMSC, three Message Application Routers (MARs), four signaling gateways (Cisco IP Transfer Part), and more than thirty Cisco Layer 2 and Layer 3 switches.
Lead a team of technical support engineer for Telco products, perform regular system audit on the mobile messaging system, and provides regular technical report for all activities and incidents occurred in the systems.
Design and implement mobile satellite IP data service for mobile satellite system (GSM over satellite), leveraging skills and knowledge in GSM system, mobile satellite system, IP networking, and C/C++ programming.
Design and implement Voice over IP (VoIP) system running over Wireless LAN and integrated it with mobile satellite system, leveraging skills and knowledge in VoIP protocol (SIP), Wireless LAN, VoIP gateway (Asterisk, running under Linux), and mobile satellite system.
Design and develop embedded software for mobile satellite system (GSM over satellite) terminal product, leveraging skills and knowledge in mobile satellite air interface and embedded system programming with C language.
Design and develop embedded software for satellite-based asset tracking terminal, leveraging skills and knowledge in mobile satellite air interface and embedded system programming with C language.
Managed satellite ground station system software and network, leveraging skills and knowledge mobile satellite communication, satellite operational procedures, networking protocols (TCP/IP, DECnet, LAT, SmartSockets), and operating systems (Sun Solaris, OpenVMS, Windows NT, VxWorks real-time operating system).
Performed installation, troubleshooting, software updating, and database updating on satellite telemetry data logging server, satellite commanding and ranging, server, and satellite payload commanding server.
Performed satellite control procedures, satellite station keeping, satellite momentum dump, satellite eclipse procedure.
GPA 3.34 out of 4
GPA 3.30 out of 4 Scholarships: - Final Project Scholarship, 2000. - ADB Scholarship, 1999 – 2000. - Supersemar Scholarship, 1998 – 1999.