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I will build a custom web app, dashboard or micro saas
Jonathan O.
About this gig
Hi, I'm Jonathan. I am a multidisciplinary creator bridging the gap between premium UI/UX Design and robust Front-End Engineering. I specialize in building custom web applications, internal dashboards, and Micro-SaaS MVPs that look like $20,000 agency productsbut are delivered with the speed and agility of an independent senior developer.
What I Build: Single-Feature Tools: Custom calculators (health, finance), interactive forms, and lead-gen widgets. Internal Dashboards: Clean, dark/light mode admin panels to manage your data, clients, or internal operations smoothly. Micro-SaaS MVPs: Fully functional front-end ecosystems ready for you to launch, validate, and monetize your startup idea.
My Tech Stack & Workflow: Pixel-perfect, high-contrast interface design in Figma before writing a single line of code. Lightning-fast and responsive development using React, JavaScript, and Tailwind CSS. Clean, scalable architecture, ready to be integrated with your backend or deployed instantly via Vercel.
I dont just write code; I design intuitive digital environments that your users will actually love to navigate.
Every project is unique. Please send me a message with your idea!
Get to know Jonathan O.
Jonathan O.
Web Developer UI Designer and Video Editor
- FromBrazil
- Member sinceJul 2018
Languages
English, Portuguese, Spanish
Hi! I am a multidisciplinary creator with 6+ years of experience delivering high-end visual solutions. I bridge the gap between premium design and technical execution, specializing in UI UX Design, Front End Web Development, and High Retention Video Editing.
Instead of hiring multiple freelancers, I offer a complete ecosystem for your project: from designing beautiful interfaces and coding fast landing pages, to editing dynamic video ads that convert.
I build digital experiences focused on aesthetic excellence and real results. Let's build something outstanding!
My Portfolio
FAQ
Do you build native mobile apps (iOS/Android)?
Not now. I specialize in highly responsive Web Applications. This means the app will work perfectly and look like a native app on mobile browsers, but it is not intended for the Apple App Store or Google Play Store.
I only have an idea, no design yet. Can we work together?
Absolutely. My biggest differentiator is that I am both a UI/UX Designer and a Front-End Developer. If you only have the business logic, I will first create a premium, high-contrast visual prototype in Figma for your approval before writing any code.
What technologies do you use?
I build modern, lightning-fast interfaces using React, JavaScript, and Tailwind CSS. This ensures your Web App or Dashboard is scalable, easy to maintain, and performs exceptionally well.
Do you build complex back-end servers and databases?
My primary focus is on the Front-End architecture, UI/UX, and client-side logic (perfect for MVPs and Micro-SaaS interfaces). If your app requires complex databases or user authentication, I can connect my front-end to your existing APIs, or we can use lightweight solutions like Firebase/Supabase. P
Will I own the source code?
Yes! Once the order is completed, you will receive the full, clean, and organized source code for your application.
