Samuel Langarica Mejía

Company maintaining a portfolio management system, with ongoing development of new features and internal tools to improve operations and enhance client services.

• Designed and developed a cross-platform mobile app using Flutter and Dart for iOS and Android, handling all aspects from UI/UX to business logic and API integration.
• Co-developed an internal AI chatbot using Python and FastAPI with a Retrieval-Augmented Generation (RAG) pipeline. The chatbot assists employees with customer service tasks by integrating custom tools and internal APIs.
• Built a client-facing AI assistant that provides access to a catalog of specialized AI agents, enabling users to ask domain-specific questions and receive expert-level responses without human intervention.
• Collaborated with a small team to design scalable backend services and connect AI components to Zell’s internal systems.

Technologies: Flutter, Python, FastAPI, OpenAI API, Supabase, REST APIs, GitHub, Docker

• Led the frontend development team, establishing best practices and modular architecture for maintainable, scalable codebases.
• Designed and built reusable Flutter components, cutting development time and streamlining cross-project consistency.
• Developed and maintained business-critical applications, translating operational needs into custom digital tools.
• Bridged communication between business and tech teams, refining business requirements into technical specs.
• Conducted technical interviews to help grow the engineering team.

Technologies: Flutter, PostgreSQL, Drizzle ORM, GitHub