Paulo Shirima
Dar es Salaam
Summary
With a robust background in the telecommunications industry, retail and customer service, I have developed extensive expertise as a Value-Added Service (VAS) Engineer. My career has honed my ability to troubleshoot complex technical issues and deliver tier 1 and 2 support effectively. As a motivated Computing Graduate, I successfully transitioned into the IT sector, where I have continuously applied and refined my technical and computing skills. I am now looking to leverage my comprehensive experience and technical acumen in new and challenging opportunities.
Overview
4
4
years of professional experience
Work History
VAS Engineer
TigoZantel Tanzania
01.2022 - Current
- Support and maintain Value Added Services platforms to ensure very high levels of service delivery and availability VAS Platforms Includes (SMSC, SMSC-GW, SMSCFW, USSD, TSS, SDP, IVR, MCA, MCG).
- Handled customer complaints related to VAS by troubleshooting and resolving technical issues, implementing preventive actions to ensure customer satisfaction.
- Collaborated with VAS vendors [UVAS, TSS, SDP] to ensure low-impact delivery of fixes and releases.
- Conducted daily monitoring, error handling, fault resolution, scheduled maintenance, and backup activities to maximize VAS platform availability and minimize downtime.
- Cooperating with Core Network (MSC & HLR) to resolve VAS related issues raised from Core Network and those from call centre and escalation team that require action from Core Network.
- Providing support to the existing and new third parties connected to VAS platforms.
- Work Closely with Commercial to ensure the changes related to VAS systems are executed in timely Manner.
- Understand Commercial requirements and translate into technical requirements which can be handled by VAS platforms.
VAS Specialist
Zantel Tanzania
01.2021 - 01.2022
- Provided 1st Line Support for VAS systems, including SMSC, USSD systems, 3rd Party VAS systems and OCS/CBS (Billing system) related technical issues, system integrations, and upgrades.
- Implemented product changes in OCS (Billing system) and USSD end as directed by the regulator and commercial team.
- Delivered Level 1 support for SMSC, SMSC FW, SMSC GW, MCA, MCG & USSD services, resolving issues before escalating to Level 3 with detailed Level 1 analysis.
- Ensured the upkeep and monitoring of all existing and future VAS products/systems (SMSC, SMSC FW, SMSC GW, MCA, MCG, USSD & OCS).
- Volunteered as IT Representative for all Commercial Product configurations, related technical issues, application vendors, and 3rd parties.
- Conducted operational routines to maintain high quality and availability of VAS platforms and products offered by the company to both internal and external customers.
Education
Information And Communication Technology With Management (ICT_M) -
MZUMBE UNIVERSITY (MU)
Morogoro, Tanzania11.2021
(E.G.M) - Advanced Certificate of Secondary Education
JJ MUNGAI SECONDARY SCHOOL
Iringa, Tanzania05.2018
Certificate of Secondary Education
EINOTI SECONDARY SCHOOL
Arusha11.2015
Skills
- Proficient in Database and Database Management Systems (DB & DBMS), including data manipulation (CRUD operations)
- Advanced computer skills in software installation, hardware and software troubleshooting, and proficiency in MS PowerPoint, MS Word, MS Excel, MS Project, MS Publisher, and MS Visio
- Possesses fundamental knowledge of programming languages, particularly Python, PHP & Django framework
- Linux computers servers Management skills
Accomplishments
- In 2021, I played a key role in ensuring that, all commercial product changes were implemented from OCS and well applied from USSD end as per commercial request.
- In 2022, I played a key role in ensuring a smooth transition of VAS platforms and OCS from ZANTEL's old Billing System (OCS) to a new Billing System (CBS), maintaining uninterrupted VAS services throughout the process.
- In 2022, I played a key role in deploying new features, including customer consent mechanisms, on the TIGO SDP platform. These enhancements significantly improved the customer experience and reduced unwanted subscriptions to VAS services.
- Engaged significantly and ensure migration of ZANTEL's SMSC, SMSC GW, SMSC FW, and USSD from ZANTEL Infrastructure to TIGO Infrastructure as part of service consolidation. Ensured a smooth transition without service disruption, facilitating seamless operations in 2022-2023.
Timeline
VAS Engineer
TigoZantel Tanzania
01.2022 - Current
VAS Specialist
Zantel Tanzania
01.2021 - 01.2022
Information And Communication Technology With Management (ICT_M) -
MZUMBE UNIVERSITY (MU)
(E.G.M) - Advanced Certificate of Secondary Education
JJ MUNGAI SECONDARY SCHOOL
Certificate of Secondary Education
EINOTI SECONDARY SCHOOL
Work Availability
monday
tuesday
wednesday
thursday
friday
saturday
sunday
morning
afternoon
evening
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Field Training
Aug 2020 - Nov 2020: IT service.
Tigo Tanzania, Dar es Salaam.
Activity performed and knowledge acquired as a part of second entry training in telecom industry while pursuing a first degree in Information and communication technology at Mzumbe University main campus.
- Service desk support.
- Database Management (MySQL and Oracle Database).
- Servers’ storage management.
- Backup and recovery.
Aug 2019 – Nov 2019: B2B & Networking.
Tigo Tanzania, Dar es Salaam.
Activity performed and knowledge acquired as a part of first entry training in telecom industry while pursuing a first degree in Information and communication technology at Mzumbe main campus
- Home internet installation. example: SOFTNET - Mikocheni.
- Supervision of new service integration in Data center (DC). example: PCCW (Rack equipments installation, network equipment and server installation).
Telephone
+255 658123005/ +255 744583729
Language
English, Swahili
Personal Information
Nationality: Tanzanian
References
Amos Josephat
VAS Supervisor
Honora Tanzania Plc.
Phone: 0713123485
Email: amos.josephat@tigo.co.tz
Emmanuel Manga
Network Program Manager
Honora Tanzania Plc
Address: P.O. Box 100
Phone: 0713123702/ 0758737502
Email: emmanuel.manga@gmail.com
Lucas Mgana
Address: Kisiwani, kigamboni, Dar es salaam, Tanzania
Phone: 0656401573/ 0628229838
Email: lukemgana@gmail.com
Hobbies and Interests
Travelling, Movies & Cinema, Photography, Technology innovations program from TV channels.
Field Training
Aug 2020 - Nov 2020: IT service.
Tigo Tanzania, Dar es Salaam.
Activity performed and knowledge acquired as a part of second entry training in telecom industry while pursuing a first degree in Information and communication technology at Mzumbe University main campus.
- Service desk support.
- Database Management (MySQL and Oracle Database).
- Servers’ storage management.
- Backup and recovery.
Aug 2019 – Nov 2019: B2B & Networking.
Tigo Tanzania, Dar es Salaam.
Activity performed and knowledge acquired as a part of first entry training in telecom industry while pursuing a first degree in Information and communication technology at Mzumbe main campus.
- Home internet installation. example: SOFTNET - Mikocheni.
- Supervision of new service integration in Data center (DC). example: PCCW (Rack equipments installation, network equipment and server installation).
Language
English, Swahili
References
Amos Josephat
VAS Supervisor
Tigo Tanzania.
Phone: 0713123485
Email: amos.josephat@gmail.com
Amani Michael
IT Platform Product Specialist
TigoZantel Tanzania.
Phone: +255715503501
Email: amanimichael52@yahoo.com
Emmanuel Manga
Network Program Manager
TigoZantel Tanzania
Address: P.O. Box 100
Phone: 0713123702/ 0758737502
Email: emmanuel.manga@gmail.com
Mustafa Mgera
IT Project Manager
TigoZantel Tanzania
Phone: 0776645653
Email: mustafa.mgera@gmail.com
Hobbies and Interests
Travelling, Movies & Cinema, Photography, Technology innovations program from TV channels.
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