Browse categories
Explore
Fiverr Pro
English
$
USD
I will design and develop mobile application for andriod and ios devices
Oluwatobi A.
About this gig
Looking to bring your app idea to life on Android and iOS? I can help! I am a mobile app developer specializing in designing and building high-performance, cross-platform apps using Flutter and React Native, with native Android (Kotlin) and iOS (Swift) development when needed.
I focus on building clean, scalable apps that feel native, load fast, and are ready for real users from day one from first wireframe to App Store and Play Store submission.
What I offer:
- Custom UI/UX design tailored to your brand and users.
- Cross-platform development (Android & iOS) from a single codebase.
- Backend integration authentication, databases, APIs, and cloud sync (Firebase, PostgreSQL, MongoDB).
- Ad network integration for monetization (AdMob and similar).
- App Store and Google Play submission handled end-to-end.
Why me? I follow a design-first, performance-focused approach, write clean and modular code, and build apps that are easy to maintain and scale as your user base grows.
Please message me with your app idea and requirements before ordering so we can plan the perfect solution for your business!
Get to know Oluwatobi A.
Oluwatobi A.
Full Stack Software Engineer
- FromNigeria
- Member sinceMay 2021
- Last delivery1 year
Languages
English
Hi, I'm Adepoju, a Senior Software Engineer specializing in secure, high-performance full-stack web applications. With deep expertise in Node.js, Next.js, Python, React, and cloud databases, I engineer scalable digital solutions from scratch.
My approach is strictly "security-first," ensuring your web apps, custom dashboards, and payment architectures are robust and optimized. From sophisticated B2B SaaS platforms to custom API integrations, I deliver clean, maintainable code built to scale your business. Let's collaborate!
My Portfolio
FAQ
Which AI models and APIs do you usually work with?
I specialize in integrating top-tier LLM providers like OpenAI (ChatGPT), Anthropic (Claude), and Google Gemini. I can handle streaming responses, function calling, structured JSON formatting, and embedding creation depending on your software's needs.
What frameworks do you use for backend automation?
I build ultra-fast, event-driven backends using JavaScript (Node.js/Express) or Python (FastAPI). Both environments are exceptionally well-suited for processing asynchronous webhooks, API polling, and handling high-concurrency traffic efficiently.
Can you connect platforms that don't have built-in plugins?
Yes! If tools like Zapier or Make fall short or get too expensive, I build completely custom webhook handlers and API connectors. This gives you total control over data validation, security protocols, and operational workflows.
Will my sensitive API keys and data remain secure?
Security is my top priority. I implement production-grade security standards, incorporating strict environment variable configurations (.env), token verification practices, and robust request handling routines to prevent data leaks.
Do you provide maintenance support after deployment?
Yes, my Premium package includes dedicated post-launch support. For Basic and Standard orders, I provide fully commented code blueprints making it easy for any developer to scale, or you can opt for continuous maintenance packages.
