Cundapi
Javier emoji

¡Hello! I am Javier Cundapi

Software Engineer specialized in backend and microservices. I craft reliable digital infrastructures, blending AI, cloud, and data-driven solutions to solve real-world challenges.

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Selected Work

Latest Project
Monogatari Manga Platform

Monogatari

Web3 Platform International Hackathon Winner

Good Actions

Good Actions

Web3 / Blockchain Platform - Gamification- Education

Ominio

Ominio

E-Learning Platform - Gamification - AI

Experience

01

Soft-Skills Training App (Microservices + ML), Teching

Apr 2025 – Jul 2025

  • Contributed to an AI-powered soft skills platform
  • Designed a microservices architecture (DDD) with Node.js/Express and FastAPI
  • Containerized services, used Kong API Gateway and RabbitMQ
  • Built ML pipelines (Isolation Forest for anomalies and churn prediction)
  • Integrated PostgreSQL and MongoDB and implemented dashboards and KPIs
Node.jsTypeScriptFastAPIDockerKongRabbitMQPostgreSQLMongoDBML
02

Restaurant ERP System, Hubbie Platform

Apr 2024 – Sep 2024

  • Developed backend services with Go and Gin for inventory, users, menus, and orders
  • Implemented reusable REST endpoints and optimized performance for production loads
  • Collaborated with frontend and supported CI/CD workflows
GoGinREST APIDockerCI/CD
03

Client & Maintenance Management System, HIGHTECH

May 2023 – Apr 2024

  • Built full-stack features with Laravel, MySQL and PostgreSQL
  • Implemented role-based auth, WebSockets for chat/notifications, and CRUD modules for clients and catalogs
  • Added forms, validation and dashboards with Blade
LaravelPHPMySQLPostgreSQLWebSocketsBlade
04

IoT Solar Panel Monitoring System, Freelance

Jan 2023 – May 2023

  • Designed REST APIs with Node.js to ingest sensor data and trigger alerts
  • Streamed real-time metrics via WebSockets to dashboards
  • Used JWT authentication and optimized MySQL queries for reliability
Node.jsExpressJWTMySQLWebSockets
05

University Management Platform, Platinum México

Sep 2022 – Mar 2023

  • Delivered Go + Gin services for authentication, schedules and academic records
  • Integrated relational databases, enforced clean architecture and participated in code reviews
GoGinREST APIClean ArchitecturePostgreSQL

Skills

A snapshot of the tools and practices I use to build solid backends.

Backend

RESTful API DesignMicroservices ArchitectureEvent-driven & AsyncWebSocketsClean ArchitectureDomain-Driven Design (DDD)Real-time ProcessingJava

Databases

MySQLPostgreSQLMongoDBData ModelingPerformance TuningMigrations

DevOps & Infra

DockerCI/CD PipelinesAWS (EC2 · S3 · ELB · CloudWatch · IAM)Nginx · Load BalancingCaching StrategiesPerformance TuningKong API GatewayRabbitMQ
Toolbelt:Node.jsTypeScriptJavaPythonGoExpress.jsFastAPISpring BootGinEchoLaravelMySQLPostgreSQLMongoDBDynamoDBDockerKongRabbitMQAWSAzureDigitalOcean

Soft Skills

Team CollaborationProblem SolvingAttention to DetailContinuous LearningEffective CommunicationWorkshop Facilitation

About Me

Passionate backend developer with a vision for scalable architecture and innovative solutions

Backend Developer with Architectural Vision

I'm Javier Cundapi, a software engineer passionate about building scalable, clean, and efficient APIs. I work with Node.js, Go, Java, Spring Boot, and Laravel, applying clean architecture principles and best practices.

Real-World Production Experience

I've worked on ERPs, authentication systems, educational platforms, and IoT solutions for energy monitoring, integrating technologies like Docker, WebSockets, JWT, PostgreSQL, and MongoDB.

Always Learning & Sharing

I continue training in AWS, Azure, security, and performance. I enjoy participating in hackathons, writing about my projects, and learning in community.

3+
Years Experience
15+
Projects Completed
3
Hackathon Wins
8+
Technologies

Awards & Achievements

🥇
1st Place - Talent Land Hackathon 2025
Innovation in backend architecture
🥇
1st Place - MegaHackathon Internacional Blockchain & Web3
Decentralized application development
🥉
3rd Place - VaraNetwork Hackathon 2024
Smart contract integration
📰
Publication - Scientific Publication - Solary Project
Indexed research contribution

Quick Facts

Based in:Mexico
Focus:Backend Development
Specialty:API Architecture
Interests:Cloud, Clean Code, Blockchain

Let's Build Something Amazing Together

I'm always excited to work on innovative projects and collaborate with passionate teams. Let's discuss how we can bring your ideas to life.

Get In Touch

Contact

Got a proposal, collaboration, or question? I’m open to new challenges — let’s talk.

upconectionupconection@gmail.com
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I usually reply within 24 hours.