Job Summary: We are looking for a Senior Full Stack Developer to join a team developing a comprehensive, modular ERP system with multiple domains and integrated AI tools. Key Highlights: 1. Participation in a high-impact product (core ERP of the business) 2. Collaborative team focused on engineering best practices 3. Opportunity to influence architecture, standards, and technical roadmap Full Stack Developer (Node.js + React) and AI Location: Oeiras (hybrid model) Contract: Renewable for 6 months Compensation: up to €2500 + benefits / month (gross) Experience: Senior Primary stack: Node.js, React, JavaScript, APIs, Databases, AWS (or similar)   About the project We are seeking a Full Stack Developer to join a team building a complete, modular ERP system with multiple domains, including: Financial management Property management Marketing and sales Supplier management And other modules continuously evolving The ERP will feature multiple API-based integrations with existing platforms and incorporate AI tools for both analysis/reporting and user/customer interaction (e.g., assistants, automations, recommendations, intelligent chat/support). Responsibilities: End-to-end development and evolution of ERP modules (backend + frontend) Design and maintenance of APIs (REST and/or other approaches), integrations, and synchronizations with external systems Database modeling and optimization (schemas, queries, performance, migrations) Backend implementation in Node.js (architecture, security, validations, testing) UI development in React (components, state management, performance, UX in product context) Cloud environment work (AWS or similar): deployment, scalability, observability Quality assurance via testing, code reviews, product documentation, and engineering practices (CI/CD, monitoring, logging) Collaboration with product/tech teams on technical discovery, architectural decisions, and iterative deliveries Requirements: Solid full-stack development experience Node.js and React in production product contexts (not just prototypes) JavaScript (ideally following coding best practices and standards) Experience with APIs and system integrations (authentication, retries, rate limits, idempotency, webhooks, etc.) Database experience (MySQL or others) and data modeling Experience working with AWS (or equivalent infrastructure) and understanding of environments (dev/stage/prod) Best practices: Git, team collaboration, quality focus, and delivery orientation Nice-to-have: Experience managing and implementing database systems on Linux Docker, CI/CD (GitHub Actions/GitLab CI), Infrastructure as Code (Terraform/CloudFormation) Modular architectures (well-structured monolith, microservices, event-driven, queues) Observability (structured logs, metrics, tracing) Experience developing and integrating AI tools, for example: Integration with AI/LLM APIs RAG (retrieval + generation), embeddings, semantic search Automation of reporting and intelligent analytics User assistants (chat/voice), data classification and extraction What we offer Involvement in a high-impact product (core ERP of the business, with multiple modules and integrations) Collaborative team focused on engineering best practices Opportunity to influence architecture, standards, and technical roadmap Competitive compensation aligned with experience: up to €2500 + benefits / month (gross) Flexibility: hybrid model (on-site and remote) Application Send your CV + a brief summary (5–10 lines) of your experience to our email.