Full stack developer, matching algorithm, API etc.

Full Stack Developer is needed in Beijing, China.

We are DOTMAIN, a company based in Ireland, and we are looking for an experienced Full Stack Web Developer to help finalize our web-based FX platform, which is close to launch. The platform’s basic framework is developed, primarily using Supabase, but further work is required to make it launch-ready. You will need to refine both the matching algorithm for users and the negotiation features, as well as improve the existing admin backend interface. A primary focus of the role is integrating a third-party payment processing API such as Stripe or PayPal. The tech stack involves React, TypeScript, Vite, Tailwind CSS, React Router DOM on the frontend, and Supabase (PostgreSQL), Node.js on the backend. The ideal candidate will have proven experience building and deploying web applications with React and TypeScript, integrating with payment APIs, and managing PostgreSQL-based databases. You should feel comfortable working independently and delivering quality code in an agile environment. This is a single job with potential follow-up work and requires applicants to be based in China.

Budget range:
Medium project ($1,500 – 3,000 USD)

Who are you, and what do you do?
Company based in Ireland* I’m seeking a skilled Full-Stack Web Developer to finalize our web-based FX platform, ready to launch. The basic aspect has been created, and using Superbase, but it requires further work to launch. Matching users of similar needs, admin back end (already logic, and UI are there, but need improvement). This role focuses on integrating a third-party payment processing API and refining the existing matching and negotiation functionalities.
Key Technologies:

• Frontend: React, TypeScript, Vite, Tailwind CSS, React Router DOM
• Backend/Database: Supabase (PostgreSQL, Authentication, Realtime), Node.js (for API interactions/serverless functions)
• API Integration: Experience with third-party payment gateway APIs (e.g., Stripe, PayPal, or similar).
  Experience Needed:
• Proven experience building and deploying modern web applications with React and TypeScript.
• Strong proficiency in integrating with RESTful APIs, especially payment processing providers.
• Solid understanding of database interactions with Supabase or similar PostgreSQL-based services.
• Ability to work independently and deliver high-quality code within an agile environment.

In what capacity are you hiring?
For my company

Where are you in the hiring process?
I will possibly make a paid hire

What type of work is this?
Single job with potential follow up work

What experience level is needed?:
Junior, Mid-level (Industry Average), Senior