Onesmo Lyimo Email & Phone Number

Tanzania

• Provided consultation to a client (Telco) for Last-mile connectivity and national roaming• RAN field services supervisor for a telco. (Handle ticket call-outs within specified SLAs)• Oversaw installation and configuration of 4G site roll out (Site Surveys and Site Commissioning)Designed Network Infrastructure and Security requirements for clients• Designed and Implemented a Security Operation Center (SOC)• Ensuring that the technological resources meet the company's short and long-term needs• Maintaining a consumer-focused outlook and aiding in the delivery of IT projects to market• Ensuring all technology practices adhere to regulatory standards

Malawi

Responsibilities:* Determined bill of material and details cost to establish last mile connectivity for the Government of Malawi WAN* Saved 40% of project fund by proposing a solution that uses the existing infrastructure. * Design and implement last-mile network infrastructure to connect 124 registration centers to the national backbone fiber for the National Registration Bureau (NRB).* Install and configure Routers, switches and Firewalls* Provide technical evaluation assistance to the Procurement Service Unit (PSU) to procure LAN and WAN service* Provide training to the system analysts and ICT staff of the Government of Malawi* Optimize Government wide area network (GWAN) by configuring quality of service (QoS), traffic engineering, bandwidth management, and traffic segmentation using virtual routing instances.* Install and deploy a network monitoring system for Government WAN

Dar Es Salaam, Tanzania

Responsibilities:Long-term planning for IP/MPLS network.CAPEX planning for IP/MPLS, including CAR preparation and investment justification.Monitor IP Core capacity utilization and action on it.IP Planning for B2B and Internal LAN projects.Planning for ISP cloud capacity to cater to data growth.Design, Implement and support Managed Data Network Services Infrastructure.IP Design for Ericsson and Huawei Packet Core (RNC, BSC, GGSN, SGSN) Integration.L2 & L3VPN design and provisioning across MPLS networkProject Management. Capacity PlanningAchievements• Worked with Financial Team and Group IT Team to implement, launch and maintain Tigo Pesa Service• Planned and coordinated implementation of virtual private networks (VPN) solutions for B2B customers countrywide• Worked with Google to implement an in-house caching solution that saved over 30% of upstream Internet traffic.• Planned and implemented disaster recovery and data center site migration from Lugoda to Temeke.• Improved internet availability by configuring redundancy from two service providers.• Designed and implemented the migration Zantel network after Tigo’s acquisition using BGP and MPLS

Dar Es Salaam

• Improved the efficiency of network by implementing quality of service (QoS)• Reduced 20% Operations cost and improve efficiency of Field Engineers by designing and implementing a Data Communication Network (DCN)• Improved capacity utilization of backbone transmission to 80% by implementing active-active MPLS-TE• Transformed core network from fixed TDM backbone to flexible and scalable IP MPLS backbone• Reduced downtime by delivering the network side of the move to ITIL change /problem / incident management model. • Integrated the 3G and 4G radio access network (RAN) into the core network• Improved visibility of the network by integrating SolarWinds network monitoring tool

Dar Es Salaam

Operating IP network infrastructure, supporting Core Network nodes (NSS and BSS) and Intelligent Network (IN) systems. Managing 3 Internet Service Providers and ensuring reliable Internet availability for corporate, 3G, and Blackberry services.• Packet Core Nodes Integration, i.e., Routers, Switches, DNS, BSC, RNC, MGW, SGSN, GGSN, and SBC Firewalls• Operations and Maintenance on the MPBN Network• Designed and implemented a Data Communication Network (DCN) for transmission traffic nodes.• Demonstrated effective and consistent technical support.• Assisted in establishing a scalable Mobile Packet-Bone Network (MPBN).• Completed projects ahead of schedule and under budget

Dar Es Salaam

As Senior Systems Administrator, planned and coordinated IT activities including identification, establishment and maintenance of Information Technology infrastructure that facilitated timely electronic data capturing, processing, storage, retrievals and dissemination of information to support and enable Barrick Gold and its Shareholders in business processes• Deployed and managed Microsoft Windows 2003 Active Directory, SQL 2005 and Exchange 2007• Managed fiber links (primary) and microwave links (secondary) connecting to Telecommunication Operator• Implemented Cisco ASA 5500 series network security.• Participated in the infrastructure backbone upgrade from CAT5 Ethernet to Fiber in 2007• Successfully led a smooth transition of Network infrastructure following a Small Mine acquisition

Mbeya

Providing assistance to 14 Local Authorities Councils with the implementation and roll out of the Integrated Financial Management System (epicor eBack Office).• Installing, upgrading, configuring, testing, maintaining and supporting operating system software• Drawing up annual maintenance /service plan for ICT assets in a quarterly basis and reporting on the cost of maintenance• Database and Network administration: Installation of backend and front end accounting applications• On-site and on-line support for users, on-site training for new users

Masters In Business Administration, Information Technology Project Management

Bsc. Telecommunications Engineering, Telecommunications Engineering