Alejandro Urrea

Senior Full Stack Engineer

Alejandro Urrea

I build intelligent, scalable solutions that bridge cutting-edge AI technology and real-world business impact — from multi-agent AI systems to robust full-stack applications.

Los Angeles, CA

About

I'm a Senior Full Stack Engineer with 4+ years of experience building production platforms, designing multi-agent AI systems, and delivering cloud infrastructure serving thousands of users — across the full stack from database architecture and serverless backends to responsive frontends.

At AlterCall, I built the core platform from the ground up — now serving over 2,000 users — using React, Node.js, and AWS, while designing multi-agent AI architectures with Python, LangGraph, and OpenAI. Beyond the product, I developed internal tools like a commission engine and lead delegation system to streamline company operations.

Full Stack

NextJS, React, NodeJS, TypeScript, Cloud Architecture

AI / ML

Multi-agent systems, LangGraph, OpenAI, Python

Cloud

AWS (Lambda, RDS, SQS, EC2, S3, Cognito), Docker, CI/CD

Collaboration

Agile, Scrum, cross-functional team leadership

Testimonials

What colleagues and collaborators say

AlterCall

Alejandro Urrea is a Full Stack Engineer at AlterCall, specializing in front-end development, user interface architecture, and optimizing user experiences. With a Bachelor's in Computer Science from the University of Central Florida, Alejandro leverages his expertise in JavaScript frameworks and modern front-end technologies to engineer high-performance web applications and scalable platforms that support large-scale social networks. His work focuses on creating responsive, intuitive interfaces that drive user engagement while ensuring technical robustness. Alejandro's technical acumen extends across the full stack, allowing him to design and implement end-to-end solutions that integrate seamlessly with backend infrastructures. His experience includes optimizing application performance, architecting scalable systems, and aligning software functionality with business requirements. Passionate about building business software that balances advanced functionality with user-friendly design, Alejandro consistently delivers solutions that enhance system accessibility and operational efficiency.

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Deepesh H.

Alejandro has been an outstanding senior team member to work with. He is always approachable, willing to help, and highly knowledgeable in his domain. He played a key role in setting up our AWS infrastructure, including DynamoDB, RDS, Lambda, S3, AppSync, and several other AWS services. Alejandro consistently values team input, engages in thoughtful discussions around ideas, and is always open to improving systems and processes.

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Brandon K.

We worked together on a team for two semesters completing our capstone project. Throughout this time Jose's commitment to excellence was evident throughout our collaboration, as he consistently showcased a strong work ethic and a keen willingness to acquire new skills crucial to achieving our project milestones. His proactive approach to learning and adapting to evolving project requirements greatly contributed to the overall success of our team. Additionally, Jose's exceptional communication skills played a pivotal role in fostering a positive team dynamic, ensuring efficient collaboration and understanding among team members. Overall, I believe Jose's dedication, work ethic, and interpersonal skills make him an asset to any team or project.

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Experience

Senior Full Stack Engineer

AlterCallApril 2024Present

Design and develop scalable, hierarchical multi-agent AI systems using LangGraph, build robust backend infrastructure to support customer workflows, and create production-ready React applications from Figma designs.

Responsibilities & Achievements

Technologies

PythonLangGraphOpenAIJavaScriptTypeScriptReactNode.jsPostgreSQLAWSCognitoRDSGraphQLAPI GatewayLambdaSNSSQSS3

Technologies & Skills

Languages & Frameworks

PythonCC++C#.NETJavaJavaScriptTypeScriptCSSHTML5NodeJSNextJSPHPSwiftReactAngularVue

Backend & Database

SQLMongoDBPrismaPostgreSQLMySQLSQLiteRESTful APIsORMs

DevOps & Cloud

AWSAzureDockerKubernetesCI/CDGitGitHubGitLab

Methodologies & Tools

AgileScrumJiraTrelloFigmaDiscordSlack

Design & Multimedia

AdobePremiere ProCreative Cloud

Projects

Autonomous Analyst

Autonomous Analyst

Full Stack / AI

Multi-agent AI system where four specialized agents (Retriever, Analyst, Reporter, Critic) collaborate to answer business questions. With self-evaluation loops, real-time streaming traces, and vector search via Pinecone

TypeScriptReactExpressLangGraphOpenAIPineconeTailwind
Compete
Private

Compete

Database & Backend

Virtual Sports & Social Media App

NextJSReactTypeScriptTailwind CSSMySQLAWS
The Market

The Market

Full Stack

Ecommerce Website

PythonDjangoHTMLSQLiteCSSJavaScript
Personal Trainer GPT

Personal Trainer GPT

Backend & Database

AI Personal Trainer

MERN stack

Education

UCF Logo

University of Central Florida

Orlando, FL2018 — 2023

Bachelor of Science in Computer Science

Relevant Coursework

Senior Design I & II
Computer Science I & II
Object Oriented Programming
Database Systems
Process for Object-Oriented Software Development
Machine Learning
Robot Vision
Programming Languages
Algorithms for Machine Learning
Security in Computing
Topics in Cyber Security
Discrete Structures I & II
Systems Software
Computer Logic & Organization
Web Based Information Technology
Foundation Exam

Recognition

Multiple Dean's List Recognition

Certifications

Google Technical Support Fundamentals

Google

C Programming Course

SoloLearn

C# Programming Course

SoloLearn

HTML Course

SoloLearn

Microsoft Office Suite

Microsoft

Languages

EnglishNative
SpanishNative
FrenchIntermediate

Activities

HackUCF Member
Colombian Student Association Member