Cesar Valencia

Diverse industry experience across AI, E-commerce, Healthcare, Real Estate, FinTech, Retail, and Social. • • Built for different platforms using React, Next.js, Vue for , React Native, Expo for , • • Front-endapplications Web Mobile and Electron for applications. Desktop Implemented highly-organized state management with Redux, MobX, Zustand, and Recoil. Engineered solutions for the dashboard using Chart.js, ReChart, and D3.js, enhancing the data datavisualization insights through the improved UI/UX with and principles. localization webaccessibility Back-enddevelopment monoliths microservices with Node.js, Express.js, Nest.js, FastAPI, Django, and Go, utilizing and architecture. Proficient in designing and optimizing the (MySQL, PostgreSQL, MongoDB, Dynamo, FireStore) databaseschemas and integrating them with (Prisma, SQLAlchemy) ORMs Implemented API layers with RESTful APIs and GraphQL, and configured secure authentication using services like Okta, AWS Cognito, SuperToken, and Zitadel; managed (AWS, GCP) with (Terraform, AWS-CDK). cloudinfrastructure IaCtools Integrated 3rd-party services (Stripe, Hubspot, Shopify, etc.) into the application to enhance the functionality. Committed to Test-Driven Development (TDD) using Jest, Cypress, Pytest, and Playwright, delivering high-quality code quickly while adapting to new technologies. Integrated GenAI models (OpenAI, Anthropic, Gemini, etc) for implementing AI-related functionalities. Quick to deliver high-quality code and adapt to new technologies.