Emmanuel Mtali

Experience

• 

  MobilePower

  Jun 2017 - Oct 2021

  Senior Software Developer

  - Implement USSD payment system *150*53# increasing customer service subscription for 50%+- Integrate USSD gateways with all major mobile network operators- Design and implement easy to navigate USSD menus for payment process to support DStv business- Perform integration with all major mobile operators in Tanzania (Vodacom, Tigo, Airtel and Halotel)- Add support for recursive payment subscription- Use CI/CD using Jenkins improving code quality and shorten deployment to multiple times a day- Perform robust third-party service integration using docker - Add sentry error monitoring tool to enhance debugging and bug fixes- Perform heavy optimisation for API and DB operations with Redis reducing USSD menu timeout by 85% Show less

• 

  Jaza Energy

  Oct 2021 - Mar 2024

  - Transition legacy Android app from Java to Kotlin.- Implement new features for improved business output and UI/UX using Jetpack Compose.- Integrate Hilt for optimized memory usage and enhanced code testability (+75%).- Improve offline sync with WorkManager, reducing data latency to <1 minute.- Configure and integrate monitoring tools for performance tracking.- Add MVVM architecture for better code maintainability and scalability.- Draft architecture document outlining new app specifications. Show less

  • Software Engineer

    Dec 2022 - Mar 2024

  • Android Developer

    Oct 2021 - Dec 2022
• 

  Airtel Tanzania

  Mar 2024 - now

  Management Information System Engineer

  - Assure Data ETL (Extract Transform and Load) available for business reporting- Configuring Databases (DB2, Oracle, Postgres & MySQL)- Handle Application Development Tasks (Backend, Frontend and Mobile)- Executing reporting KPIs and revenue flash- Ensure appropriate reports are shared in timely manner with business team- Updating Finance and Marketing Dashboards- Engage Business stakeholders on outages and planned downtimes.- Ensure CRs and UAT are performed on time