Yerodin Cuellar

I’m
Yerodin Cuellar

AI Engineer & Full Stack Developer

6+ years shipping production systems in TypeScript, NestJS and AWS. Now building RAG pipelines, multi-stage LLM workflows, and agent automation with LangChain and LangGraph

Work Experience

  1. •

    Artificial Intelligence Engineer

    Multilingual Interpreters and Translators

    Florida, United States

    Built and shipped a multi-stage LLM pipeline for interpreter training with LangChain: Whisper ASR to an LLM qualifier with structured output to an insight-extraction LLM, with human-in-the-loop at every decision point.

    Designed and shipped a RAG-powered LMS feature: chunked corpus, vector retrieval, retrieval-augmented query answering and automated test generation with source attribution.

    Built document-intelligence workflows with OCR and vision-language models: schema-validated extraction from PDFs and UI screenshots with a human review queue, saving 20+ hours weekly across contractor and invoice operations.

    Led the white-label multi-tenant migration: tenant-ID segregation, security and role layer, tenant-aware Lambdas, Terraform written from scratch, EKS replicas behind a load balancer and per-client CI/CD.

    Moved the team to Claude Code and Spec-Driven Development: spec agents, task-splitting agents and MCP integrations with Jira, Figma and Sentry.

    LangChain LangGraph LangSmith RAG pgvector Pinecone Whisper OpenAI Anthropic MCP Claude Code TypeScript Node.js NestJS Python FastAPI PostgreSQL AWS (Lambda SQS SNS RDS Cognito EKS) Terraform CI/CD
  2. •

    Full Stack Developer

    Kedo

    Lima, Peru

    Designed and maintained REST APIs with NestJS, Swagger/OpenAPI and Zod-based request validation across a multi-country microservices deployment.

    Built and deployed containerized microservices on Node.js and TypeScript, plus a shared React component library consumed across 4 internal applications.

    Deployed and managed infrastructure on AWS (ECS, Lambda, S3, RDS, DynamoDB, Cognito, SNS, SQS, API Gateway, CloudWatch) with AWS CDK and CI/CD.

    TypeScript Node.js NestJS Express.js React Next.js MySQL TypeORM AWS (ECS Lambda S3 RDS DynamoDB Cognito SNS SQS API Gateway CloudWatch) AWS CDK Docker CI/CD Swagger/OpenAPI
  3. •

    Full Stack Developer

    Quinti

    Lima, Peru

    Led end-to-end development of a delivery platform (customer app, driver app and landing page), building the RESTful services in Express.js and Node.js.

    Integrated order management, real-time driver tracking and Firebase authentication, persistence and push notifications.

    JavaScript Node.js Express.js React Next.js Jest SQL PostgreSQL TypeORM Firebase AWS Tailwind

Projects

Proyecto

Quinti - Food Delivery App

  • TypeScript
  • Next.js
  • Nest.js
  • React.js
  • Firebase
  • PostgreSQL
A delivery platform built from scratch to connect local businesses in rural Peru with customers through scalable backend architecture and smooth user interfaces

About me

Hi, I'm Yerodin — an AI Engineer & Full Stack Developer passionate about building products that solve real-world problems through technology.

I specialize in creating scalable and maintainable systems using TypeScript, NestJS, and AWS, and I'm now focused on building RAG pipelines, multi-stage LLM workflows, and agent automation with LangChain and LangGraph.

Over the last two years I've shipped production AI systems including document-intelligence workflows, human-in-the-loop pipelines, and tenant-aware multi-tenant architectures on AWS with Terraform IaC.

Outside of coding, I enjoy exploring new AI trends, collaborating with creative teams, and taking on challenges that push me beyond my comfort zone.