Mahmoud Sirelkhatim
Lincoln
Summary
Accomplished professional specializing in mobile technology with expertise in 2G, 3G, 4G tuning, and 5G concepts. Proficient in parameter setting and monitoring key performance indicators to improve network accessibility, retainability, and integrity. Experienced in planning and design, providing capacity expansion recommendations, and deploying new features. Utilizes advanced KPI analysis tools and business intelligence platforms to enhance network performance and resolve technical issues.
Overview
21
21
years of professional experience
5
5
years of post-secondary education
Work history
Access Network Performance and Planning Senior Engineer
Connect44UK - Virgin Media O2
2022.05 - 2026.02
- Manage and support all Radio Access Network (RAN) planning activities (Ericsson & Nokia), ensuring SLA targets are consistently met through continuous performance monitoring and proactive planning.
- Analyze network statistics to identify performance pain points and initiate targeted improvement projects to enhance coverage, capacity, and user experience.
- Monitor, assess, and optimize key network KPIs daily, using data-driven insights to drive decision-making and maintain high service quality.
- Lead LAC/TAC planning and design across 3G (RNC/BSC), 4G (LTE), and 5G networks, ensuring efficient mobility management and seamless user experience.
- Track and analyze hardware utilization trends; recommend and implement Optimisation strategies to improve resource allocation and reduce operational risks.
- Support the Optimisation team in resolving critical network issues, such as paging failures, by conducting root cause analysis and proposing data-backed solutions.
- Collaborate across teams to share findings, present performance reports, and align improvement initiatives with overall network strategy.
- Achievements/Tasks
Kuwaiti Sudanese Holding Company
2020.08 - 2022.03
- Manage & Support all Radio Optimization activities in Zain-Sudan MS Project (Ericsson & Huawei Network) and secure all needed resources to achieve the project target.
- Led the optimization department to deliver the most effective solution that positively affects revenue, and CX and reduces the cost.
- Ensure innovation and creative thinking within the teams by improving processes and procedures and setting Plans to overcome & enhance Network Performance.
- Handle decisions on major technical issues on Network Optimization activities regarding new solutions and designs provided by the vendor and give recommendations according to business needs.
- Governance for Customer relationship management: Hold a weekly meeting with Customers at different levels (High (CTO & Directors) & Medium) to communicate progress & Network Status in addition to building trust and engagement.
- MS company for ZAIN Sudan
- Achievements/Tasks
Network Performance Management (NPM) Senior Engineer
Huawei Sudan
2017.01 - 2020.08
- Managed Zain Sudan Radio optimization team (Ericsson) 2G,3G, and 4G.
- Defined and measured the SLA.
- Handled the responsibility of KPI monitoring and improvement.Deployed the network strategy.
- Followed up on all new projects and acceptance.
- Tasks
Radio Optimization Team Leader
ZAIN Sudan
2014.04 - 2016.12
- Managed Radio optimization team (Huawei, Ericsson).
- Handled responsibility for KPI monitoring and improvement.
- Deployed the optimum network strategy.
- Assured Network stability and tested all new features.
- Coordinated between the optimization team and another dept.
- Tasks
Radio Network Quality & Optimization Engineer
ZAIN Sudan
2007.02 - 2014.08
- Handled the responsibility of daily monitoring, Improving and maintaining network KPIs (CSSR, Paging, SDCCH blocking, TCH blocking, SDCCH drop, TCH drop, HO success rate, etc.), improving the IRAT Handover, Soft Handover, Location Update, Paging, CSSR, RRC Connection & RAB Establishment SR, and issuing capacity requests whenever needed.
- Carried out Drive test activities, post-processing, and analyzed to identify radio environment performance problems, and take actions to improve the performance.
- Handled the Neighbors list modification, identification, and suggestion of necessary frequency plan adjustments based on drive test and radio performance.
- Suggested and implemented justified radio network parameter changes, and physical antenna system changes to improve the network performance.
- Achievements
- Deployed the new optional feature in our 3G network which improves network flexibility and capacity and for sure maintained our KPI.
- I put the strategy for 2nd carrier and tuned the parameters to achieve a data rate of up to 42 Mb/s in Khartoum.
- Initiated CFT with RAN support, transmission, and core dept. to study and solve the internet speed problems and I was a member of CFT with packet core and RAN support to study the impact of throttling from the customer point of view and to set the optimum QOS parameters for user's profiles.
- Tasks
Turnkey Network Planning
Huawei
2005.01 - 2007.02
- Designed technical solutions.
- Managed network planning project (site survey and BOQ).
- Supervising project processes, and the acceptance of integrated site coordination with customer time plans and procedures.
- Tasks
Education
B.Sc. Hon. - Electrical and Electronic Engineering
Sudan University of Science and Technology
1998.10 - 2003.10
Skills
- Mobile Technology: 2G,3G, and 4G Tuning, 5G concepts, Parameter Setting, accessibility, retainability, and integrity KPIs monitoring and improving
- Planning & Design: Capacity Expansion recommendations, Dimensioning, review of new solutions, new features deployment, and testing
- KPIs analysis and probing tools: RR, NCS, WNCS, NOX, FAS, FOX, RPMO, EBA (GSM and WCDMA), CNA, MOSHELL, Business object, TEMS, MapInfo Excel, Power BI Tableau SQL ,PrOptima Foresight
- Managerial skills: tracking network strategy & assurance, Handling decisions on major technical issues in Network Optimization activities
Custom Section
2G, 3G, and 4G Tuning, 5G concepts, Parameter Setting, accessibility, retainability, integrity KPIs monitoring and improving, KPIs analysis and probing tools, RR, NCS, WNCS, NOX, FAS, FOX, RPMO, EBA (GSM and WCDMA), CNA, MOSHELL, Business object, TEMS, MapInfo, Excel, Power BI, Tableau, SQL, PrOptima, Foresight, Capacity Expansion recommendations, Dimensioning, review of new solutions, new features deployment, testing, Managerial skills tracking network strategy & assurance, Handling decisions on major technical issues in Network Optimization activities
Personal Information
Title: Network Performance & Optimisation senior Engineer
Timeline
Access Network Performance and Planning Senior Engineer
Connect44UK - Virgin Media O2
2022.05 - 2026.02
Kuwaiti Sudanese Holding Company
2020.08 - 2022.03
Network Performance Management (NPM) Senior Engineer
Huawei Sudan
2017.01 - 2020.08
Radio Optimization Team Leader
ZAIN Sudan
2014.04 - 2016.12
Radio Network Quality & Optimization Engineer
ZAIN Sudan
2007.02 - 2014.08
Turnkey Network Planning
Huawei
2005.01 - 2007.02
B.Sc. Hon. - Electrical and Electronic Engineering
Sudan University of Science and Technology
1998.10 - 2003.10