Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

I'm a software engineer with a strong focus on mobile and web development, based in Maputo, Mozambique. Over the past several years I built Android and iOS apps with Flutter and native technologies, led teams, and delivered data-driven solutions for clients. I enjoy optimizing performance, designing scalable architectures, and collaborating across cross-functional teams to turn ideas into polished products. I'm comfortable with cloud services (AWS, Google Cloud), GraphQL, CI/CD, and a passion for user-friendly UX.…I'm a software engineer with a strong focus on mobile and web development, based in Maputo, Mozambique. Over the past several years I built Android and iOS apps with Flutter and native technologies, led teams, and delivered data-driven solutions for clients. I enjoy optimizing performance, designing scalable architectures, and collaborating across cross-functional teams to turn ideas into polished products. I'm comfortable with cloud services (AWS, Google Cloud), GraphQL, CI/CD, and a passion for user-friendly UX.

Kelvin Cumbana

App Developer, Back-End Developer, Web Developer, +3





I'm a software engineer with a strong focus on mobile and web development, based in Maputo, Mozambique. Over the past several years I built Android and iOS apps with Flutter and native technologies, led teams, and delivered data-driven solutions for clients. I enjoy optimizing performance, designing scalable architectures, and collaborating across cross-functional teams to turn ideas into polished products. I'm comfortable with cloud services (AWS, Google Cloud), GraphQL, CI/CD, and a passion for user-friendly UX.…I'm a software engineer with a strong focus on mobile and web development, based in Maputo, Mozambique. Over the past several years I built Android and iOS apps with Flutter and native technologies, led teams, and delivered data-driven solutions for clients. I enjoy optimizing performance, designing scalable architectures, and collaborating across cross-functional teams to turn ideas into polished products. I'm comfortable with cloud services (AWS, Google Cloud), GraphQL, CI/CD, and a passion for user-friendly UX.

Available to hire

I’m a software engineer with a strong focus on mobile and web development, based in Maputo, Mozambique. Over the past several years I built Android and iOS apps with Flutter and native technologies, led teams, and delivered data-driven solutions for clients.

I enjoy optimizing performance, designing scalable architectures, and collaborating across cross-functional teams to turn ideas into polished products. I’m comfortable with cloud services (AWS, Google Cloud), GraphQL, CI/CD, and a passion for user-friendly UX.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Advanced

Portuguese

Advanced

Work Experience

Android Developer at Vodacom

May 1, 2022 - Present

Contributed to the development of a new hybrid application using Flutter to enhance cross-platform functionality for iOS and Android. Collaborated with cross-functional teams to design, develop, and test features, optimizing user experience and code maintainability. Implemented solutions to improve app responsiveness and UI/UX. Improved GraphQL mutations to optimize loading times and data fetching.

Software Engineer at Wolftech Industries

April 1, 2022 - September 10, 2025

Led the mobile development team (Android and iOS) building apps for clients and partners. Led software development efforts for data management systems and applications. Helped a client reduce queues at their headquarters by 60% by delivering an Android & iOS app built with Flutter (Dart) to allow online race marathon sign-up.

Software Engineer at SISLOG

March 1, 2021 - September 10, 2025

Created dashboards for data visualization and reporting using PHP and JavaScript. Developed native Android and hybrid apps to expand platform reach. Built SQL queries for detailed reports and set up cron jobs for automated tasks. Configured Linux environments for deployment. Designed UI prototypes and authored comprehensive software documentation.

Android Developer at Vodacom

May 1, 2022 - Present

Contributed to the development of a new hybrid application using Flutter, enhancing cross-platform functionality and ensuring seamless performance across iOS and Android. Collaborated with cross-functional teams to design, develop, and test application features, optimizing user experience and code maintainability. Implemented innovative solutions to improve app responsiveness and UI/UX design. Improved GraphQL mutations within the app to optimize loading times, resulting in a more efficient data-fetching process and a smoother user experience.

Software Engineer at Wolftech Industries

April 1, 2022 - September 10, 2025

Led the mobile development team (Android and iOS) that built apps for the company’s clients and partners. Leading the software development team that designs and builds data management systems and applications for the company’s clients. Helped a client reduce queues at their headquarters by 60% by providing them with an Android & iOS app built with Flutter (Dart) to allow people to sign up online for their race marathon.

Software Engineer at SISLOG

March 1, 2021 - September 10, 2025

Created multiple dashboards for data visualization and report generation using PHP and JavaScript, enabling comprehensive data analysis. Developed both native Android applications and hybrid applications to enhance platform compatibility and user reach. Constructed SQL queries for generating detailed reports and set up cron jobs for automated task scheduling. Configured and maintained the Linux environment to facilitate smooth application deployment. I Designed and developed UI prototypes, ensuring user-friendly interfaces and optimal user experience. Authored detailed software documentation to support development and facilitate future maintenance.