Full Stack Engineer

Contract type: Freelance (B2B) SRL sau PFA Workload: Full-time Remote option: Full Remote Start date: asap Duration: 12 months + Languages: English About: This role sits at the heart of a leading-edge technology company focused on advancing AI-driven solutions for national defense and industrial sectors. As part of a multidisciplinary engineering team, the position supports the development of secure, production-grade platforms that enable seamless interaction between advanced AI agents and complex enterprise systems. The successful candidate will contribute to mission-critical projects that drive digital transformation and operational excellence within highly regulated environments. Responsibilities: - Architect and develop intuitive, highly responsive frontend applications for AI agent interaction - Design and implement backend orchestration layers to coordinate specialized AI agents and manage workflow logic - Build secure data access layers enabling AI agents to read and write to enterprise systems such as SAP S/4HANA and Ariba - Develop dynamic dashboards and interactive data visualizations for surfacing engineering and financial data - Integrate retrieval-augmented generation (RAG) and vector database search capabilities into user-facing chat and search interfaces - Construct connectors for external data sources to support supply chain risk analysis and comparative reporting - Implement full-stack security measures, including authentication, RBAC, and client-side vulnerability protection - Optimize applications for on-premise, air-gapped deployment and efficient resource usage on local infrastructure - Ensure end-to-end observability through comprehensive error tracking, logging, and monitoring across frontend and backend systems - Collaborate closely with cross-functional teams to deliver cohesive, production-grade AI-powered platforms Skills: - Expert proficiency in TypeScript and JavaScript - Advanced experience with React or Next.js for frontend development - Strong skills in complex state management and real-time data streaming (WebSockets/SSE) - Deep knowledge of Python (FastAPI or Django) for backend AI integration - Proficiency in Node.js, Go, or Java for high-performance microservices - Experience designing and consuming RESTful APIs and gRPC services - Hands-on experience with Docker and Kubernetes for on-premise deployments - Proficiency with PostgreSQL and vector databases (Weaviate, Milvus) - Strong understanding of enterprise integration protocols (OData, SOAP) - Expertise in implementing full-stack security, including RBAC and data redaction