Over 4 years designing, building and shipping full-stack systems and AI-powered platforms: agentic workflows, RAG pipelines and LLM observability, on top of React, Next.js, Python and Java.
Master's in Artificial Intelligence, thesis defended.
Software Engineer
Architected and deployed production-grade agentic workflows and multi-agent environments using LangGraph and LangChain, integrating internal enterprise tools via structured function calling.
Designed and optimized high-performance RAG pipelines utilizing Azure OpenAI, Pinecone, and pgvector, applying semantic search strategies for efficient high-dimensional data retrieval.
Implemented observability and evaluation mechanisms using LangSmith and Langfuse to monitor LLM execution, troubleshoot failures, and track task-success metrics in production.
Led the frontend architecture of AI-driven platforms (Betti, Betterness) using Next.js, TypeScript, Tailwind CSS, and React Query for seamless user experiences.
Built and maintained robust full-stack components, connecting backend services (Java 21, Spring Boot), hybrid databases (MySQL, Neo4j), and event-driven data pipelines (Apache Kafka).
Integrated cloud-native capabilities, including AWS SDK (S3, Transcribe) for automated multimedia processing, and managed containerized environments via Docker.
Software Engineer
Engineered production-grade enterprise applications utilizing Java and TypeScript, owning feature delivery from design to production rollout.
Built and maintained a Modular Design System, accelerating the development of frontend interfaces and reducing time-to-market by 40%.
Managed secure API integrations and high-concurrency data processing pipelines with relentlessly high standards for reliability.
Software Engineer
Developed and deployed a comprehensive operational tool for patient management, leveraging Next.js (frontend) and Spring Boot (backend).
Collaborated directly with stakeholders to navigate ambiguous requirements, successfully translating clinical needs into a scalable technical solution.
Software Engineer
Developed secure backend services and APIs for a transactional gateway using Python and Django.
Designed and normalized PostgreSQL database schemas, optimizing SQL query performance and ensuring strict data integrity.
Built responsive, client-facing interfaces with React to consume internal RESTful APIs.
Software Engineer
Ensured the stability of corporate banking software through rigorous testing and systems thinking, mitigating critical security vulnerabilities.
Software Engineer
Developed responsive Single Page Applications using React.js, focusing on clean code practices and seamless API integrations.
Web Developer
Development of a web application for user and file management for the Decentralized Autonomous Governments (GAD's), using JavaScript, Bootstrap, and MongoDB.
Universidad Internacional de La Rioja (UNIR)
Universidad Católica de Cuenca
Hey! I'm Carlos Valladarez, a software engineer from Cuenca, Ecuador. I've loved programming since I was a teenager, and for more than 4 years I've been building full-stack systems, from React and Next.js interfaces to Java, Python and Spring Boot backends.
I started in web development at Kodeliv, a startup among friends where React and Next.js became my favorite tools. Since then I've worked on payment gateways, banking software, a patient-management tool for a clinical research unit, and enterprise applications with a design system that cut time-to-market by 40%.
Today I work at Ensolvers, building AI-powered platforms: agentic workflows with LangGraph, RAG pipelines on top of vector databases, and the observability that keeps LLMs honest in production. I recently defended my thesis for a Master's in Artificial Intelligence, focused on RAG and generative AI workflows.
I like owning problems end to end, especially the ambiguous ones, and measuring whether a solution actually works. In my free time I build things like PAB, a Chrome extension that suggests the best move in Pokémon battles, backed by a neural network I trained.
I speak Spanish natively and English at an advanced level. If you have an interesting project in mind, don't hesitate to contact me. I'd love to hear about it!
