Issam Doumi

Experience

• 

  DAT

  Feb 2012 - Jul 2012

  Consultant

  Automatisation d'une chaîne de production d'articles scolaires.

• 

  Djezzy

  Oct 2012 - Jan 2020

  ● As the Technical Leader of the Nokia NFVI and vEPC Project, successfully orchestrated the project from inception to completion in record time to enhance the subscriber experience in an already overloaded network.● Spearheaded the integration of the packet core within the Digital Business Support System project, ensuring seamless collaboration between critical components, resulting in quick time to market for all new marketing products.● Acted as the Technical Leader for the deployment of NFVi and vEPC by ZTE, overseeing a successful implementation that met stringent performance and reliability requirements, positioning the company for technological leadership in the country.● Conducted comprehensive testing and validation of the ZTE NFVi and vEPC at VEON lab, ensuring the solution met all performancebenchmarks and regulatory standards, contributing to the company's reputation for technological excellence.● Produced highly detailed technical documents and presentations for all integration activities and Requests for Proposals (RFPs) that facilitated decision-making and resulted in accurate vendor selection.● Demonstrated a proactive approach to enhancing the user experience by initiating the deployment of an OTT cache solution, which delivered remarkable results—yielding a 75% reduction in bandwidth consumption at the ISP level. Show less ● As the Packet Core Responsible, successfully implemented all new marketing data offers at the PCRF and packet core side in a timely manner, resulting in expanded service offerings and increased revenue streams.● Designed and executed innovative B2B/M2M data solutions, positioning the company as a market leader in providing tailored data services, which contributed to a 10% growth in the enterprise customer base.● Spearheaded the migration of TEKELEC STP to Huawei SPS, ensuring a seamless transition without service disruptions and improved network efficiency.● Oversaw the migration of NSN NT-HLR to Huawei HSS, a complex task that was executed flawlessly with zero impact during the migration, enhancing network scalability and reliability.● Successfully orchestrated the migration from NSN One-HLR to NT-HLR, simplifying network operations.● Facilitated knowledge transfer and implemented a back-to-back work process, fostering a culture of continuous learning and collaboration within the team, resulting in a 10% increase in team efficiency and knowledge sharing.● Produced highly detailed technical documents and presentations for all integration activities, ensuring clarity and transparency in the integration process, which led to streamlined decision-making and optimized resource allocation. Show less

  • Core Network Integration Expert

    May 2018 - Jan 2020

  • Core Network Integration engineer

    Oct 2012 - May 2018
• 

  Rakuten Mobile, Inc.

  Mar 2020 - now

  ● Led EPC, IMS, and RCS operations with a strong focus on problem, incident management and change management, resulting in a 90% reduction in critical incidents.● Effectively managed the migration of the Nokia IMS network from VNFto CNF, achieving a 15% reduction in operational costs while maintaining uninterrupted service for customers.● Established rigorous network auditing and compliance protocols, strengthening the department's reputation for network stability and reliability.● Spearheaded process enhancements, resulting in a 40% increase in operational efficiency and more than a 70% reduction in response times to critical incidents.● Proactively trained and mentored team members, fostering professional growth and development, leading to a 30% increase in team productivity and knowledge.● Pioneered automation initiatives and introduced a zero-touch operation framework, delivering annual cost savingsand reducing operational manual workload by 50%.● Strategically reduced budget dependencies on vendors, achieving budget optimization while preserving high service quality and reliability.● Significantly reduced the average incident recovery time from 4 hoursto a remarkable 30 minutes, enhancing network reliability and customer satisfaction.● Implementation of the first AI use cases in mobile network operation. Show less ● Played a pivotal role in preparing the network for its first-ever commercial launch and the world's first E2E virtualized MNO, ensuring all critical components were meticulously optimized and coordinated to meet performance benchmarks.● Led the engineering and operational efforts for the packet core, achieving exceptional network reliability and performance, resulting in a seamless user experience.● Successfully managed Gi-LAN, enhancing network efficiency and reducing latency by implementing and fine-tuning TCP optimization, contributing to a 10% improvement in overall network performance.● Orchestrated the deployment of the 5G SA Lab as part of regulatory obligations, facilitating comprehensive testing and validation of network changes in a controlled environment.● Conducted rigorous testing and validation of all network changes in the lab before implementing them in the live network, leading to a 50% reduction in post-implementation incidents and ensuring a consistently stable network.● Created and delivered technical documents and presentations for the packet core section, resulting in a 40% increase in operational efficiency. Show less

  • Central Core Network Operation departement manager

    Mar 2021 - now

  • Packet core senior engine

    Mar 2020 - Mar 2021