JavaScript Developer

Description

We are looking for people eager to learn, grow, and develop alongside us. If you believe you align with our culture and enjoy challenges, join us on this journey toward a transformative future. **Responsibilities and Duties** We are seeking a JavaScript Developer passionate about Generative Artificial Intelligence, automation, and intelligent system architecture to build scalable, secure, and agent-oriented AI solutions. This role involves full-stack development, advanced integrations, automations using n8n, and building architectures based on LLMs and multi-agent systems, leveraging modern AI-assisted tools such as Claude, Cursor, Ollama, and vLLM. **Responsibilities** * Develop end-to-end Artificial Intelligence solutions, working across frontend, backend, APIs, and services. * Design, implement, and orchestrate agent and multi-agent system architectures—from design through production operations. * Build automations and integrations using n8n, ensuring robust, scalable, and resilient workflows. * Work with relational databases and modern platforms such as Supabase/PostgreSQL. * Integrate applications with REST APIs, external services, and cloud/on\-premises platforms. * Ensure security, governance, and compliance of solutions—including authentication, access control, traceability, logging, and adherence to LGPD. * Evaluate, review, and validate code generated with AI-assisted tools, ensuring quality, security, performance, and maintainability. * Participate in defining best practices for development of Generative AI-based applications. * Contribute to observability, prompt versioning, and model governance in production environments. **Requirements and Qualifications** **Requirements** * Bachelor’s degree in Information Technology, Computer Engineering, Information Systems, or related fields—completed or in progress. * Solid experience with JavaScript/TypeScript. * Hands-on experience in both backend and frontend development. * Experience with REST APIs, integrations, and PostgreSQL or equivalent databases. * Ability to design agent and multi-agent system architectures. * Proficiency in n8n for creating workflows, integrations, and automations. * Knowledge of cloud and on\-premises environments. * Analytical mindset and critical thinking skills to review and validate AI-generated code. **Preferred Qualifications** * Practical experience with Claude, Cursor, Ollama, vLLM, or other Generative AI frameworks/models. * Experience deploying AI solutions in production. * Knowledge of information security and LGPD. * Experience with observability, monitoring, and model governance. * Participation in mission-critical projects—especially in logistics, operations, or high-availability domains. * Familiarity with prompt versioning, context engineering, and AI pipelines. **What We’re Looking For** * A hands\-on, innovative, and problem-solving oriented individual. * Genuine interest in Generative AI and emerging technologies. * Ability to thrive in dynamic, collaborative, and rapidly evolving technological environments. * Architectural mindset with emphasis on scalability, security, and software quality. **Technologies and Tools** * JavaScript / TypeScript * Node.js * React (desirable) * n8n * Supabase / PostgreSQL * REST APIs * Claude / Cursor / Ollama / vLLM * Git and CI/CD pipelines * Cloud Computing * AI Agent-Oriented Architectures * Docker **Additional Information** **Salary:** * Market-competitive; **Benefits:** * Caju multi-benefits; * Dental plan; * Wellhub (Gympass); * Conexa Saúde (telemedicine). Multimodal Group is a logistics operator present in the Brazilian market for over 10 years, with a mission to deliver efficient, secure, and high-quality logistics solutions—connecting businesses and people while generating value for our customers. Our vision is to expand our logistics operations nationwide and be recognized for the professionalism, ethics, and competence of our management. Our core values are: * **Collaboration**: We value teamwork, equity, diversity, ethics, and empathy in relationships; * **Flexibility**: We embrace change and adapt quickly to better serve our customers, employees, and partners. * **Innovation**: We seek new ideas and technologies that enhance agility and excellence in our operations; * **Quality**: We strive to deliver services that meet and exceed customer expectations—with security, agility, and quality. Our management model is built upon three fundamental principles: * **PEOPLE**: We value our employees and partners who ensure our company’s success; * **CUSTOMERS**: We pursue excellence in our services, as customer satisfaction is our top priority; * **RESULTS**: We are driven by the success of our work and continuously improve our processes. Our main services include warehousing, cross\-docking, road transportation of general cargo, and specialized port operations—including container transportation.