AI Product Developer / Experienced Vibe Coder — MAGNET

Build an international SaaS that connects Instagram growth, AI conversations and lead generation. We’re building MAGNET: a platform where businesses and creators can manage audience growth, conversations, automated lead flows and content from one workspace. Our mission: Grow your audience with AI. Turn conversations into opportunities. We already have an Instagram growth backend with an API. We’re looking for an experienced developer to build the customer-facing product and our internal admin environment around it. You should be comfortable using AI coding tools to move quickly, with the engineering skills to understand, test and maintain what you ship. What you’ll build A responsive web app with onboarding, account management and subscriptions. Audience targeting, account suggestions and growth reporting connected to our existing API. An inbox with AI reply suggestions, configurable automation and manual takeover. Lead Flows: a comment or incoming DM keyword triggers a resource delivery and optional follow-up conversation. A simple lead pipeline and content planner. An internal admin panel for customers, integrations, support and operational visibility. The first phase is the web app. A mobile app is planned for a later phase. What you’ll own You’ll work directly with the founder to turn product ideas into clear, usable features. Your responsibilities will include architecture, implementation, integrations, testing, deployment and maintenance. You’ll also help define what to build first, identify technical constraints and keep the product simple. Who we’re looking for Experience shipping and maintaining real web applications, ideally SaaS products used by paying customers. Strong full-stack development skills and practical experience with AI coding tools. Experience with APIs, webhooks, background jobs and third-party integrations. A solid understanding of authentication, permissions, customer data isolation and secure handling of credentials. Experience with billing, databases, monitoring and debugging production issues. Good product and UI judgment. Clear English communication and the ability to work independently. Experience with Next.js, React, TypeScript, PostgreSQL, Vercel and subscription billing is relevant. The final stack will be chosen around the product’s requirements. Experience with Meta/Instagram integrations, messaging systems or AI agents is a strong plus. Why join You’ll have a meaningful role in shaping the product from the beginning, direct access to the founder, and an existing backend operation to build on. We’re looking for an ongoing collaboration with someone who takes ownership of both the user experience and the reliability of the software. How to apply Send us: Two or three live products you’ve built, explaining your exact contribution. Your experience using AI coding tools and how you review and validate their output. An example of an API integration or automation you’ve built. A production issue you solved and how you approached it. Your availability, time zone, preferred working arrangement and rate. Shortlisted candidates will be invited to complete a small, paid technical assignment: a keyword-to-message workflow using test data, with logging and a pause function. Apply through this platform or reply directly with your work examples.