Willy Mateo profile photo

I'm Willy Mateo,

a Tech Lead specializing in AI Agents and agentic systems

Let’s build something amazing together.

About me

Hello there! My name is Willy Mateo

I’m a Tech Lead specializing in AI Agents and agentic systems, with a background that spans the full stack — from frontend and backend development to cloud infrastructure and cross-functional team leadership.

My journey started as a Fullstack Software Engineer, where I got hands-on experience designing and building scalable AI-powered systems using LangGraph, DeepAgents, FastAPI, Python, AWS, and Terraform — as well as building rich frontend experiences with React, including integrating agentic capabilities directly into the UI layer. Over time I grew into a leadership role where I now drive technical strategy, coordinate frontend, backend, and infrastructure teams, and lead solution design discussions to turn complex user problems into production-ready agentic applications. I guide developers throughout the entire development process — helping them deeply understand the project, unblock issues quickly, and move faster as a team.

The AI and tech world genuinely fascinates me — I’m constantly exploring new technologies, emerging models, and innovative ways to solve problems, bringing that knowledge into both my professional work and personal projects. I’m also deeply passionate about entrepreneurship, designing and building AI-powered solutions that address real personal and business challenges. I firmly believe the best technical decisions emerge from collaborative thinking — bringing every voice to the table, analyzing tradeoffs together, and committing as a team to solutions that are scalable, flexible, and built to last.

If you’re working on something ambitious in the AI space, I’d love to connect.

Tech stack

Programming languages


JavaScript

TypeScript

Python

Front-end


React

Next Js

Redux

Zustand

React Router

Vite

Vitest

Jest

React testing library

SWR

SSR

HTML-5

CSS 3

Sass

Tailwind CSS

Chakra UI

Material UI

NPM

Webpack

Rollup

i18next

Lottie

Motion

React Hook Form

CopilotKit

CopilotKit

Back-end


Node Js

Express

Sequelize

NestJs

TypeORM

Django

Elasticsearch

OpenSearch

Resend

REST APIs

Supertest

JWT

fastapi

FastAPI

Mobile


React Native

Expo

Databases


MySQL

PostgreSQL

MongoDB

Firestore

SQLite

Mycrosoft SQL Server

Oracle

dynamodb

DynamoDB

AI Agents


LangGraph (LangChain)

LangChain

LangGraph (LangChain)

LangGraph

LangChain Corporate

DeepAgents

AG-UI

AGUI

Cloud


AWS

Firebase

Vercel

Railway

Netlify

DevOps


Docker

Terraform

Github Actions

Development environment


Linux

Git

Github

GitLab

Bitbucket

Jira

Notion

Claude

Claude Code

Claude

Agent Skills

cursor

Cursor

Visual Studio Code

Agile


Scrum

Kanban

GitFlow

Experience

Tech Lead, AI Agents

November 2025 - Present

I lead cross-functional engineering teams designing and delivering scalable architectures for production agentic applications, driving technical strategy across frontend, backend, and infrastructure while guiding developers to move faster as a team. I lead solution design discussions and foster collaborative decision-making that balances performance, scalability, and long-term maintainability. My work sits at the intersection of AI and software engineering, building agents on cloud-native stacks with AWS, LangGraph, and LangChain-based frameworks in Python.

Fullstack Software Developer Engineer

March 2025 - October 2025

I designed and built scalable, production-grade AI agent architectures, translating stakeholder requirements into concrete technical solutions. I contributed across the full stack, with deep involvement in backend development using LangGraph, LangChain, FastAPI, and Python, and in infrastructure design and automation with AWS, Terraform, and GitHub, including end-to-end CI/CD workflows. I also took an active role in solution design discussions, helping the team balance current requirements with future scalability, flexibility, and reusability.

Technologies


Python

JavaScript

TypeScript

React

CopilotKit

CopilotKit

Sass

REST APIs

fastapi

FastAPI

dynamodb

DynamoDB

LangGraph (LangChain)

LangChain

LangGraph (LangChain)

LangGraph

LangChain Corporate

DeepAgents

AG-UI

AGUI

AWS

OpenSearch

Docker

Terraform

Linux

Git

Github

Github Actions

Icon-devops-261

AzureDevOps

Scrum

Claude

Claude Code

Claude

Agent Skills

Visual Studio Code

Fullstack Engineer

September 2022 - March 2025

I contributed to a wide range of impactful projects, showcasing my full-stack expertise. For instance: I rebuilt the entire version 3 of the company's landing page, adding dynamic animations with CSS, improving SEO through server-side rendering using Express.js, and ensuring the site was multi-language with i18next. I also developed the 'Permissions Manager' , where I designed a shared React component to manage user and company permissions, significantly reducing manual requests for permission changes. Another major project was enhancing the delivery location manager, where I improved the user experience by displaying real-time location updates on a Mapbox-powered map, allowing operators to make precise location adjustments with ease. Furthermore, I played a pivotal role in the 'Driver Payments V2' project, starting with the frontend and later taking on backend responsibilities, utilizing AWS Lambda, Terraform, and Elasticsearch to optimize data retrieval performance. In every project, I worked closely with cross-functional teams, integrating solutions that not only improved system efficiency but also reduced operational overhead, helping Shippify scale its services more effectively.

Technologies


JavaScript

TypeScript

React

Redux

React Router

Jest

React testing library

Sass

SSR

Node Js

Express

REST APIs

MySQL

Firebase

AWS

Elasticsearch

Docker

Terraform

HTML-5

CSS 3

i18next

Rollup

Linux

Git

Github

Github Actions

Jira

Scrum

Kanban

Fullstack Developer

February 2022 - August 2022

I maintained a CRM system and web service for Huawei, ensuring seamless functionality for their enterprise needs. A key aspect of my role was using PSQL to create SQL scripts that migrated data from old to new tables, while ensuring data integrity by avoiding duplication and ambiguous entries. I also worked with microservices and orchestration services to streamline operations for both Claro and Huawei. Throughout the project, I utilized technologies like JavaScript, HTML, CSS, and SCSS to enhance the system's interface and performance.

Technologies


JavaScript

HTML-5

CSS 3

Oracle

PL/SQL

SSR

Fullstack Developer

October 2021 - August 2022

I played a key role in developing version 2 of an application dedicated to the buying and selling of health food. The primary challenge was to enhance user experience by implementing new features and improving existing functionalities. To address this, I implemented password recovery for user accounts and developed flows for registering customer allergies, which personalized the shopping experience. I also created functionalities for editing customer and seller information and added form validations in the sign-up forms to ensure data integrity. On the backend, I maintained and updated the RESTful API using Django and updated the database schema with SQLite to accommodate new features. I utilized React and Redux for frontend development, ensuring a responsive and intuitive user interface. Node.js was used for server-side operations, and I leveraged GitHub for version control, GitHub Actions for continuous integration, and deployed the system using Railway. Rigorous testing of the entire system ensured a robust and user-friendly application. This project showcased my ability to solve complex problems using a full stack of technologies, including React, Redux, Node.js, Django, SQLite, JavaScript, and RESTful APIs.

Technologies


JavaScript

Python

React

Redux

React Router

Jest

React testing library

Sass

Django

Node Js

REST APIs

SQLite

Linux

Git

Github

Github Actions

Scrum

Education

Engineering in Computer Science


Escuela Superior Politécnica del Litoral - ESPOL

Bachelor's degree

March 2018 - February 2024

ESPOL logo

In my journey as a Computer Science Engineer from ESPOL, I gained a comprehensive foundation in various areas of software development and technology. My education provided me with a deep understanding of Object-Oriented Programming and Data Structures, essential for building scalable and maintainable software solutions. I developed a strong grasp of Software Design principles and Database Systems, which are critical for designing efficient, robust applications. Courses in Systems Programming, Operating Systems, and Algorithms Analysis enhanced my ability to create optimized and high-performance systems. I also explored Web and Mobile Software Development, learning how to build responsive, user-friendly applications. My studies included Information Security, ensuring I understand how to protect systems and data, and Programming Languages, allowing me to work across different development environments. Additionally, I studied Software Engineering, Artificial Intelligence, and Distributed Systems and Cloud Computing, which provided insights into creating intelligent and distributed applications. My education also covered the Management of IT Projects and Information Systems, equipping me with the skills to lead technology projects and manage information effectively in a business context.

High School degree in Computer Systems


Unidad Educativa Carrera Sánchez Bruno - CSB

High School degree

May 2015 - February 2018

Unidad Educativa Carrera Sánchez Bruno logo

During my studies at Carrera Sánchez Bruno high school, where I specialized in computer systems, I gained essential foundational knowledge in various areas of software development. I learned the principles of Object-Oriented Programming, which helped me understand how to structure and organize code effectively. I also delved into Algorithms Analysis, which taught me how to optimize and improve the efficiency of solutions. Additionally, I acquired a solid grasp of the basics of Web Development, enabling me to build functional and responsive websites.

Achievements

Certification

February 2026 - February 2028

HashiCorp Certified: Terraform Associate (004)

This certification validates foundational expertise in infrastructure automation with Terraform, covering Infrastructure as Code (IaC) concepts, the core Terraform workflow, configuration language, modules, state management, and HCP Terraform features. It demonstrates the ability to manage multi-cloud infrastructure, work with providers, handle resource dependencies, and apply security best practices for cloud engineering.

Badge

October 2025

Scientific Merit - Indexed Article Publication

In the realm of verbal communication, most common non-clinical speech disfluencies are filler words and filled pauses, which pose challenges for effective oral presentations. Yet their detection is no easy task. This article presents the usage of OpenAI’s Whisper for filled pauses and filler words detection in Spanish oral presentations, including on-the-wild usage with undergraduate students. Preliminary results indicate that Whisper demonstrates promise as a valuable tool to identify a substantial amount of filler words and filled pauses. Despite areas of improvement, Whisper serves as a diagnostic tool for assessing disfluences in oral communication.

Certification

December 2024 - December 2027

Github Foundations Certification credential

This certification validates expertise in essential GitHub skills, including repositories, commits, branching, markdowns, and project management. It's designed to showcase entry-level DevOps skills and modern development practices with GitHub tools like Actions, Codespaces, GitFlow and Projects. Key Skills Validated: Git & GitHub Basics, Collaboration & Modern Development Features, Continuous Integration (CI), Continuous Delivery (CD), Secure Repository Management, GitHub Administration.

Badge

November 2024

Research Merit - Scientific Research Orientation

The award is granted to graduates of degree programs who have focused their studies on scientific research, working for one year on the same research project or in collaboration with the same professor-researcher. During this time, they address a pressing issue, successfully generating a positive impact on society and highlighting the esteemed reputation of ESPOL.

Paper

May 2024

Detecting Speech Disfluencies Using Open-Source Tools in Automatic Feedback Systems for Oral Presentation Training

In the realm of verbal communication, most common non-clinical speech disfluencies are filler words and filled pauses, which pose challenges for effective oral presentations. Yet their detection is no easy task. This article presents the usage of OpenAI’s Whisper for filled pauses and filler words detection in Spanish oral presentations, including on-the-wild usage with undergraduate students. Preliminary results indicate that Whisper demonstrates promise as a valuable tool to identify a substantial amount of filler words and filled pauses. Despite areas of improvement, Whisper serves as a diagnostic tool for assessing disfluences in oral communication.

Hobbies

  • I'm an active member of tech communities like AWS User Group Ecuador, Google Developer Group Ecuador and FLISOL, and I love attending meetups and conferences to learn, network and share ideas with fellow tech enthusiasts.

  • I especially enjoy speaking at these events, sharing talks and workshops about AI, agentic AI and the tools we can use to build agentic platforms faster.

  • I also enjoy reading about tech trends and sharing that knowledge on my socials, specially on LinkedIn, where I love helping people with their AI questions.

hobbies of Willy Mateo

Get in touch

Let's build something together

matheoowilly@gmail.com

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