Full-Stack React/Node Developer for SaaS Platform (API Integrations & n8n Automation)

We're looking for a Full-Stack Developer to help us maintain a SaaS application. Our stack is primarily React, Next.js, Node.js, TypeScript, and PostgreSQL. You'll be working on both frontend and backend development, building new features, improving existing functionality, and integrating third-party services. We currently have a few bugs and issues that need to be resolved in the existing application, so the initial phase of the project will focus on troubleshooting, fixing issues, and ensuring everything is running smoothly. Once that's completed, we have additional features and improvements planned, and we'd like to continue working with the right developer on future phases of the project. Responsibilities include: * Developing frontend features with React and Next.js * Building backend services and REST APIs using Node.js * Debugging and resolving issues in the current application * Working with PostgreSQL and database design * Integrating external APIs, webhooks, and business tools * Implementing user authentication, subscriptions, and payment workflows Experience with automation tools such as n8n is a strong plus. We have several internal processes that we'd like to automate through API integrations and workflow automation in future. Ideal candidates have experience building SaaS products, dashboards, internal tools, or customer-facing web applications and can work comfortably across the full stack. Please include links or examples of relevant React, Node.js, SaaS, or automation projects you've worked on. We're looking for someone who communicates well, takes ownership of their work, and is interested in a longer-term collaboration as the project continues to grow.