Description: Apply quickly via email: Requirements and qualifications: Mandatory requirements: * Degree or training in Computer Science, Software Engineering, Systems Analysis and Development * Minimum 3 years of full-stack development experience * Node.js * TypeScript * React / Next.js * PostgreSQL * Docker * Git / GitHub Nice-to-have: * Fastify (or Express) * WhatsApp API integrations * OpenAI / Gemini * Redis * Linux (basic server commands) Work schedule: Flexible hours, 4 hours/day from Monday to Friday. Knowledge: Education: Bachelor's degree in Systems Analysis and Development, Computer Science, Software Engineering, or Information Technology — completed 2512080202191854136