FULL STACK ENGINEER
Damilola Ogunnaike
ABOUT
Mobile
- React Native95%
- Expo92%
- Flutter88%
- Dart85%
Frontend
- JavaScript96%
- TypeScript92%
- React93%
- Next.js88%
- HTML597%
- CSS3 & Tailwind95%
Backend
- REST APIs94%
- Node.js90%
- Firebase86%
- PostgreSQL & Supabase85%
- Elixir (Phoenix)72%
Engineering
- Production Debugging92%
- Real-Time Systems86%
- Mobile App Security85%
- Incident Response80%
Hi! I’m Damilola Ogunnaike, a full-stack engineer who ships production web and mobile apps. I work across React Native, React, Node.js, and Flutter. Recent work includes TagoCash, a live fintech wallet on iOS and Android, and TagoTalk, a real-time translated calling app. Before that I built wallet systems at Juicyway and frontend products at Andela. I fix the bugs users hit, connect the API, and keep the app stable after release.
EXPERIENCE
Mobile & Backend-Oriented Software Engineer
TagoBits
May 2026 – Present
Full time
- Led development of TagoTalk, a production Flutter application supporting real-time communication features, including voice and event-driven interactions, while owning both frontend implementation and backend API integration.
- Designed and implemented real-time communication architecture (voice + live events), including LiveKit-based call infrastructure planning, event specification, and integration strategy for scalable realtime workflows.
- Built and shipped end-to-end product features across fintech-style flows (account access, premium experiences, and user interaction systems), ensuring consistent state management and API reliability across mobile and backend layers.
- Actively maintained and improved the existing TagoCash mobile application in production, identifying, debugging, and resolving critical user-facing issues across authentication flows, UI inconsistencies, API failures, and performance-related bugs.
- Contributed to development of the next-generation TagoCash application rewrite, focusing on improved architecture, cleaner state management, and enhanced scalability for future feature expansion.
- Improved app stability and release reliability by systematically diagnosing production bugs, reducing recurring issues through root-cause fixes across authentication, API integration, and UI state inconsistencies.
Flutter, Dart, Material UI / Cupertino-style widgets
Intern Full-Stack Developer
Juicyway
Jun 2024 – Nov 2024
Hybrid
- Developed a secure and scalable wallet system using Elixir and the Phoenix framework, improving transaction management efficiency and backend reliability.
- Collaborated with senior developers to gather and refine both frontend and backend application requirements, implementing best coding practices across the stack.
- Debugged and optimized backend and frontend code, reducing system errors and enhancing overall application performance and stability.
Elixir, Phoenix, Vue.js, Tailwind CSS
Front-End Engineer
BINCOM ICT Solutions
Sep 2018 – Dec 2018
Lagos State, Nigeria • Hybrid
- Led the full-stack project setup, design, and maintenance, ensuring adherence to UX/UI principles and backend service best practices, resulting in improved user satisfaction and system scalability.
- Developed progressive web applications with service workers and Accelerated Mobile Pages (AMP), enhancing performance and cross-platform accessibility.
- Mentored junior developers across frontend and backend domains, boosting team productivity and collaboration.
React.js, PWA, Service Workers, AMP, UX/UI
Intern Full-Stack Developer
ANDELA
Sep 2016 – Sep 2017
Hybrid
- Developed and maintained responsive web pages using JavaScript, HTML5, and CSS3, while contributing to backend service development for improved data flow and user experience.
- Collaborated closely with designers and backend engineers to build seamless user interfaces supported by efficient backend functionality.
- Conducted thorough testing and debugging across frontend and backend components, reducing errors and improving overall system performance.
HTML5, CSS3, JavaScript, Testing & Debugging