Full stack developer with 9+ years of experience building Android, iOS, web, desktop and automation software for clients in the US, Europe, the UAE and Nigeria. I take projects from an idea or a broken codebase to a tested, deployed product with source code and documentation.
- Web apps and SaaS with React, Next.js, Node.js and ASP.NET Core
- iOS and Android apps with .NET MAUI, Xamarin, React Native and Flutter
- Automation bots, web scraping and Chrome extensions
- AI chatbots and LLM features inside real apps
- Zoom API, SDK and Zoom Apps integrations
 N42 Technology: WordPress site rebuilt to the founder's new copy, published only after his sign off |
 Staffing job board: agency website and live job board with 13,000+ jobs, delivered in 2 weeks |
 Surplus funds portal: WordPress search and claim flow for Pluto Asset Recovery |
 Member & investor portal: WordPress MVP with Stripe memberships and a private investor vault |
 KmerBus: production deploy and courier pricing engine for a Cameroon logistics marketplace |
 Social Circle: ASP.NET Core and Supabase portal that drives real phones from a web dashboard |
- Markvein: offline Chrome extension to highlight, tag, search and export web snippets
- NimbusTab Labs: minimalist new tab dashboard with a clock and to do list
- Weather and To-Dos: new tab page with live local weather and tasks
C# · .NET MAUI · Xamarin · ASP.NET Core · JavaScript · TypeScript · React · Next.js · Node.js · Python · Kotlin · MySQL · SQL Server · MongoDB · Supabase · Firebase
- Microsoft Certified Xamarin Developer
- Programming in C# (Microsoft)
- Microsoft .NET MAUI Certification
Open to freelance, contract and remote roles.
Website: programmergwin.com
LinkedIn: Oluwasegun Babatunde
X: @programmer_gwin