sufi prasetya
@sufiprasetya
Telecom Core Engineer with expertise in CS, PS, and IMS.
What I'm looking for
I am a dedicated Telecom Core Engineer with extensive experience in CS, PS, and IMS technologies. My career has been marked by a proven ability to troubleshoot and resolve technical issues efficiently, ensuring high service quality and customer satisfaction. I have successfully migrated networks and implemented complex configurations, showcasing my technical expertise and commitment to excellence.
Throughout my career, I have worked with leading telecom companies, where I honed my skills in network operations, maintenance, and international roaming. My hands-on experience with various tools and technologies, including Huawei, Ericsson, and Nokia systems, has equipped me to handle diverse challenges in the telecom sector. I thrive in collaborative environments and am passionate about delivering world-class support to clients.
Experience
Work history, roles, and key accomplishments
CS Core and IMS Engineer
ZTE
Jan 2023 - Present (2 years 6 months)
Configured VoLTE IMS and CS Nodes, performing software upgrades, patches, and validations in testbeds before live network implementation. Provided technical expertise in engineering activities such as design, architecture, dimensioning, and integration, identifying risks and implementing mitigation strategies.
PS & CS Core Engineer
Ericsson Indonesia
May 2022 - Present (3 years 2 months)
Supported MOCN projects and handled Level 1 and Level 2 incident resolution for Circuit-Switched (CS) and Packet-Switched (PS) Core Network issues. Investigated and resolved subscriber complaints using PCAP analysis, ensuring high service quality and customer satisfaction.
Sr. IREG Engineer
Telstra
Jan 2019 - Present (6 years 6 months)
Managed day-to-day international roaming activities, troubleshooting technical problems and performing tests for new roaming partners. Ensured the delivery of international standard class roaming quality to customers.
Team Lead International Roaming (BO Core)
Huawei
Jan 2013 - Present (12 years 6 months)
Maintained and supported core network elements (MSC, MGW, HLR, STP, SGSN, GGSN, MME, PGW, HSS, IMS, PCRF) to ensure high availability and performance. Acted as second or third line support for resolving technical issues escalated from the front office.
L1 Engineer – Core and DCN
Huawei
Jan 2010 - Present (15 years 6 months)
Involved in proactive and reactive monitoring of Hutchison Indonesia Core Network, detecting alarms/events and ensuring current status was known. Performed first-line troubleshooting of incidents arising from monitoring.
NOC Engineer – BSS and Transmission
Huawei
Jan 2008 - Present (17 years 6 months)
Ensured maximum possible service availability for Indonesian Operator Axis Network. Monitored and performed first-line troubleshooting of the BSS environment.
L1/L2 IT Network Engineer
PT Telkom
Jan 2005 - Present (20 years 6 months)
Troubleshot and identified solutions to resolve customer IT network issues. Monitored IT infrastructure including switches, routers, and firewalls, categorizing alerts and engaging respective teams.
BSS Engineer
Soonpoh Technologies
Mar 2004 - Present (21 years 4 months)
Participated as part of a team to swap 3G RBS and Transmission Link from Alcatel to Ericsson. Involved in the installation and commissioning of Ericsson BSS and MW equipment.
Education
Degrees, certifications, and relevant coursework
Mercubuana University
Bachelor of Telecommunication Engineering, Telecommunication Engineering
Completed a Bachelor's degree in Telecommunication Engineering. The final assignment was completed in 2012.
Telkom University
Diploma Telecommunication Engineering, Telecommunication Engineering
Grade: 2.7
Graduated with a Diploma in Telecommunication Engineering in 2004, achieving a GPA of 2.7.
Tech stack
Software and tools used professionally
Availability
Location
Authorized to work in
Job categories
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