Job Title: Senior Full-Stack Developer — Next.js & Supabase

Location: Remote — Latin America

Salary Range: USD 3,000–5,000 per month

Work Schedule: Monday–Friday, 8:00 AM–5:00 PM Pacific Time

About Sagan
Sagan connects international professionals with remote opportunities at U.S. businesses.

About the Role
Take end-to-end technical ownership of an existing production web application. You will design, build and deploy features across the frontend, backend and database using TypeScript, React, Next.js and Supabase/PostgreSQL.

The application includes marketplace checkout, Stripe billing and subscriptions, and vendor API integrations. This role needs someone who can investigate defects, refactor an existing codebase and improve reliability with minimal supervision. You will work with leadership, operations, finance and customer success, translating operational needs into dependable releases while keeping live systems working.

Key Responsibilities

Own delivery across TypeScript and React/Next.js interfaces, backend functionality and the PostgreSQL/Supabase data layer.

Maintain marketplace checkout, Stripe subscription billing and Stripe Connect payment flows.





Build and maintain vendor API integrations, investigating failures and resolving production defects.

Design relational data models and manage migrations, indexing and SQL query optimization.

Refactor the existing production codebase and improve application reliability while supporting live operations.

Participate in planning, code reviews and releases with technical and business stakeholders.

Qualifications

5+ years delivering and maintaining production web applications.

Production proficiency with TypeScript, React, Next.js and PostgreSQL/Supabase.

Hands-on experience with Stripe subscriptions and Stripe Connect marketplace payments.

Strong relational database skills, including data modeling, migrations, indexing and query optimization.

Ability to independently own and improve an existing production codebase with minimal supervision.

English communication skills suitable for collaborating with US-based teams and explaining technical tradeoffs.

Availability for the stated Pacific Time schedule.

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