Available to hire
I’m Joel Ovienloba, a Senior Mobile Engineer with 4+ years of experience building high-performance mobile apps. I have a proven track record of delivering complex projects on time with exceptional quality, and I specialize in developing and maintaining cross-platform apps for iOS and Android.
I’m passionate about clean code, performance optimization, and mentoring developers. I enjoy analyzing challenging problems and crafting innovative solutions using industry-standard software engineering principles.
Language
English
Fluent
Work Experience
Senior Front-End Engineer - Engineering Analyst at PT Chat
February 1, 2025 - August 7, 2025Developed a full-service mobile app enabling family-district engagement and built an administrator dashboard for managing schools, assessments, and learning styles. Integrated secure authentication and performance monitoring tools, and contributed to UI/UX improvements based on real-time user feedback.
Senior Mobile Engineer at Pay4Me Inc
December 1, 2021 - PresentLed the mobile team in architecting and developing the Pay4Me App using Flutter. Managed end-to-end development lifecycle from planning to App Store and Play Store releases. Mentored junior developers and conducted code reviews to maintain high engineering standards. Built and maintained CI/CD pipelines using GitHub Actions for automated testing and release. Collaborated with Product, Design, and QA teams to deliver features that improved user retention by 20%. Delivered secure cross-border transaction features and document uploads for KYC verification. Led initiatives to reduce crash rates and improve startup time by over 35%.
Flutter Developer at TravelTube
October 1, 2021 - August 7, 2025Worked with cross-functional teams and led the development of three mobile applications: TravelTube mobile app connecting foodies and travelers worldwide, T courier app for real-time and on-demand ordering and delivery, and Partner Central App for restaurants to manage orders. Integrated Sentry for real-time error tracking and Pusher for instant notifications. Improved app modularity and reduced crash rates by 40%.
Mobile Developer at Betawork
April 1, 2024 - August 7, 2025Participated in the development of the Betawork mobile app as part of a cross-functional team. Built core Flutter features for cross-platform support across Android and iOS. Wrote comprehensive unit and widget tests using flutter_test and bloc_test, and automated deployment with CI/CD.
Front-End Developer at Bells University of Technology
July 1, 2019 - August 7, 2025Co-developed Clinic Management Software focusing on drug inventory and sales system integration for internal use.
Mobile Development Mentor at Bells University
December 31, 2023 - August 7, 2025Designed Flutter learning curriculum for junior developers and mentored over 30 students on cross-platform app development, testing, and deployment.
Senior Mobile Engineer at Pay4Me Inc
December 1, 2021 - PresentLed the mobile team in architecting and developing the Pay4Me App (Flutter). Oversaw end-to-end development lifecycle from planning to App Store/Play Store releases. Mentored junior developers and conducted code reviews to maintain high engineering standards. Built and maintained CI/CD pipelines (GitHub Actions) for automated testing and release. Collaborated with Product, Design, and QA to deliver features that improved user retention. Delivered secure cross-border transaction features and document uploads for KYC verification. Initiated initiatives to reduce crash rates and startup time by over 35%.
Senior Front-End Engineer - Engineering Analyst at PT Chat
February 1, 2025 - September 15, 2025Developed a full-service mobile app enabling family-district engagement. Built administrator dashboard for managing schools, assessments, and learning styles. Integrated secure authentication and performance monitoring tools. Contributed to UI/UX improvements based on real-time user feedback.
Flutter Developer at TravelTube
October 1, 2021 - September 15, 2025Led development of three mobile applications: TravelTube for foodies and travelers, courier app for on-demand delivery, and Partner Central App for Restaurants. Integrated Sentry for real-time error tracking and Pusher for instant notifications. Improved app modularity and reduced crash rates by 40%.
Flutter Developer at Betawork.co
April 1, 2023 - September 15, 2025Participated in the development of the Betawork mobile app as part of a cross-functional team. Built core Flutter features for cross-platform support across Android and iOS. Wrote comprehensive unit and widget tests using flutter_test and bloc_test. Automated deployment using CI/CD software.
Flutter Curriculum Designer / Mentor at Bells University of Technology
July 1, 2019 - September 15, 2025Co-developed Clinic Management Software for internal use using JavaScript and focused on drug inventory and sales system integration. Designed Flutter learning curriculum for junior developers. Mentored 30+ students on cross-platform app development, testing, and deployment.
Senior Mobile Engineer at Pay4Me Inc
December 1, 2021 - PresentLed the mobile team in architecting and developing the Pay4Me App (Flutter); oversaw end-to-end development lifecycle from planning to App Store/Play Store releases; mentored junior developers and conducted code reviews to maintain high engineering standards; built and maintained CI/CD pipelines (GitHub Actions) for automated testing and release; collaborated with Product, Design, and QA to deliver features that improved user retention by 20%; delivered secure cross-border transaction features and document uploads for KYC verification; spearheaded initiatives to reduce crash rates and startup time by over 35%.
Senior Front-End Engineer - Engineering Analyst at PT Chat
February 1, 2025 - September 15, 2025Developed full-service mobile app enabling family-district engagement; built administrator dashboard for managing schools, assessments, and learning styles; integrated secure authentication and performance monitoring tools; contributed to UI/UX improvements based on real-time user feedback.
Flutter Developer at TravelTube
October 1, 2021 - September 15, 2025Led cross-functional teams and developed 3 mobile applications: TravelTube app for connecting foodies and travelers; courier app for real-time and on-demand ordering and delivery; Partner Central App for Restaurants to manage orders. Integrated Sentry for real-time error tracking and Pusher for instant notifications; improved app modularity and reduced crash rates by 40%.
Flutter Developer at Betawork.co
October 1, 2023 - September 15, 2025Participated in the development of the Betawork mobile app as part of a cross-functional team; built core Flutter features for cross-platform support; wrote comprehensive unit and widget tests using flutter_test and bloc_test; automated the deployment using CI/CD
Javascript Developer at Bells University of Technology
July 1, 2019 - September 15, 2025Co-developed Clinic Management Software for internal use using JavaScript; focused on drug inventory and sales system integration; designed Flutter learning curriculum for junior developers; mentored 30+ students on cross-platform app development, testing, and deployment.
Senior Mobile Engineer at Pay4Me Inc
December 1, 2021 - PresentLed the mobile team in architecting and developing the Pay4Me App (Flutter). Oversaw end-to-end development lifecycle, from planning to App Store/Play Store releases. Mentored junior developers and conducted code reviews to maintain high engineering standards. Built and maintained CI/CD pipelines (GitHub Actions) for automated testing and release. Collaborated with Product, Design, and QA to deliver features that improved user retention by 20%. Delivered secure cross-border transaction features and document uploads for KYC verification. Spearheaded initiatives to reduce crash rates and improve startup time by over 35%.
Senior Front-End Engineer - Engineering Analyst at PT Chat
February 1, 2025 - September 15, 2025Developed full-service mobile app enabling family-district engagement. Built administrator dashboard for managing schools, assessments, and learning styles. Integrated secure authentication and performance monitoring tools. Contributed to UI/UX improvements based on real-time user feedback.
Flutter Developer at TravelTube
October 1, 2021 - September 15, 2025Worked with cross-functional teams and led the development of 3 mobile applications: TravelTube mobile app which helps connect foodies and travelers all around the world, courier app for on-demand ordering and delivery, and Partner Central App for Restaurants to manage orders. Integrated Sentry for real-time error tracking and Pusher for instant notifications. Improved app modularity and reduced crash rates by 40%.
Flutter Developer at Betawork.co
April 1, 2023 - September 15, 2025Participated in the development of the Betawork mobile app as part of a cross-functional team. Built core Flutter features for cross-platform support across Android and iOS. Wrote comprehensive unit and widget tests using flutter_test and bloc_test. Automated deployment using CI/CD.
Software Developer / Flutter Instructor at Bells University of Technology
July 1, 2019 - September 15, 2025Co-developed Clinic Management Software for internal use using JavaScript and focused on drug inventory and sales system integration. Designed Flutter learning curriculum for junior developers. Mentored 30+ students on cross-platform app development, testing, and deployment.
Education
B.Sc. in Computer Science & Information Technology at Bells University of Technology
January 11, 2030 - August 7, 2025B.Sc. in Computer Science & Information Technology at Bells University of Technology
March 1, 2019 - July 1, 2019B.Sc. in Computer Science & Information Technology at Bells University of Technology
January 11, 2030 - September 15, 2025B.Sc. in Computer Science & Information Technology at Bells University of Technology
January 11, 2030 - September 15, 2025Qualifications
Industry Experience
Software & Internet, Education, Financial Services, Travel & Hospitality, Professional Services, Other, Media & Entertainment
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