Oscar Antonio Bonelli Nasta

Full-Stack Engineer · Python & AI Engineer · Building high-performance products with React, Next.js & Node.js 🚀 | Creative problem solver ✨

Tampico, Tamps, Mexico (Remote)

Oscar Bonelli

About

  • Creator of Realities — Builder of Worlds through code and imagination.
  • I’m a software developer fully committed to delivering high-quality work and meeting deadlines.
  • I love turning fresh ideas into real, innovative solutions that bring value.
  • I enjoy working in teams and sharing knowledge to help others grow.
  • Challenges fuel me — they push me to achieve results and keep growing.

Experience

Cloud Transit Xchange — Lead Full-Stack Engineer

06/2024 – 06/2025

  • Backend: Node.js (Express, Nest), Python (FastAPI); REST & GraphQL APIs.
  • Frontend: React.js, Next.js, React Native (Expo), TypeScript.
  • Databases: MySQL (Prisma ORM), MongoDB (Mongoose), PostgreSQL (Sequelize, TypeORM, SQLAlchemy), Redis
  • Cloud: AWS Lambda, Cloud Functions.
  • CI/CD: CircleCI & GitHub Actions for automated deployments.
  • Testing: Jest, React Testing Library, Enzyme.
  • Containers: Docker & Docker Compose for containerized environments.
  • Version Control: Git workflows for collaboration.
  • UI/UX: Prototypes and wireframes in Figma with cross-functional teams.
    • Refactored legacy v1 under strict deadlines, enhancing functionality and strengthening codebase.
    • Led the development of a next-gen UI with a scalable white-label system; mentored junior developers.
    • Implemented Storybook, reducing component build time by 25%.
    • Reduced infrastructure costs by 20% by migrating services to AWS Lambda & Cloud Functions.
    • Improved deployment frequency by 30% through CI/CD automation.

Persistent Systems — Lead Engineer

05/2023 – 06/2024

  • Backend: Node.js (Express, TypeScript), Python (FastAPI); RESTful & GraphQL APIs.
  • Frontend: JavaScript, HTML, CSS, React.js, Next.js, Redux, TypeScript, Tailwind, Material UI; Apollo Client.
  • UI/UX: Material UI, Tailwind, responsive design; Storybook for centralized UI component management.
  • Databases: MySQL (Prisma), SQLAlchemy, MongoDB (Mongoose).
  • Testing: Unit & integration testing with Jest.
  • Version Control: GitLab workflows.
  • Methodology: Agile/Scrum.
  • Achievements:
    • Optimized API performance, improving response times by 40%.
    • Increased test coverage from 60% to 90% with Jest, reducing bugs and improving reliability.

Coppel — Software Developer

08/2018 – 04/2023

  • PHP (Laravel), Node.js (Express), Java (Spring, Hibernate, Batch),Python (FastAPI)
  • React.js, React Native, Redux, TypeScript, Javascript
  • Automation with Maven & Jenkins; AWS services;
  • Testing with Jest, React testing library, Junit
  • DB optimization (MySQL, SQL Server, PostgreSQL, MongoDB).
  • Data Processing: Worked with Apache Spark.
  • Improved e-commerce platform (+5% sales).
  • Loyalty points system (+25% retention).
  • UI redesign with UX team (+30% satisfaction).
  • React Native performance improvements (+20% downloads).

Cabezut — Engineer in Software Development

04/2015 – 06/2018

  • Developed APIs & web services; −50% data retrieval time.
  • DB tuning (MySQL, SQL Server); −25% server load.
  • Stack: PHP OOP MVC, React.js, Vanilla JS, jQuery, Bootstrap.
  • On-time, on-budget delivery (+15% client satisfaction).

Self-Employed — Senior Software Engineer

04/2012 – Present

  • Backend: PHP,Java,Node.js, Python (Django, Flask, FastAPI).
  • Frontend: React.js, AngularJS, JavaScript, jQuery, Less/Sass.
  • Databases: MySQL, SQL Server, PostgreSQL, MongoDB.
  • AI/ML: TensorFlow (classification, regression, computer vision);
  • Vector DBs (Pinecone) for semantic search & RAG pipelines.
  • E-commerce: Built platforms with React & Node.js, integrating APIs, payment gateways, and scalable features.
  • CMS: WordPress, Joomla, Shopify — custom themes and plugins as required.
  • Achievements:
    • Developed tailored e-commerce platforms and admin systems for 50+ clients.
    • Achieved 95% customer satisfaction across diverse industries.

Education

Master in Quality and Competitiveness — IEST Anáhuac

2014 – 2016

Tampico, México

B.S. in Superior Computer Systems — CEDIP

2008 – 2012

Tampico, México

Projects

Raven UI — React + Tailwind v4
↗

Reusable design system: Buttons, Inputs and more. Packaged for npm, dual ESM/CJS, PostCSS/Tailwind v4 styles and Storybook docs.

ReactTailwind v4Storybooknpm packagePostCSS
Raven-One — App Shell
↗

Next.js base app that centralizes all our web projects. Navigation, theming, and shared layout with our custom Raven UI.

Next.js 15App RouterRaven UITailwind
Raven Core — Backend Node stack
↗

Production-ready Node.js backend: Express + TypeScript, DynamoDB for Users, Prisma/MySQL for UserDetails, Redis cache, JWT auth, OpenAPI/Swagger, Jest tests, CI/CD, and observability via Sentry/Prometheus/Grafana.

Node.jsExpressTypeScriptDynamoDBPrismaMySQLRedisJWTOpenAPIJestCI/CDSentryPrometheusGrafana
Raven RAG — Private AI Search (Python + MySQL)
↗

Retrieval-Augmented Generation service with FastAPI + Prisma + MySQL. Stores embeddings in MySQL and performs hybrid search with LangChain, packaged with Docker and ready to integrate with Next.js apps.

PythonFastAPIRAGPrismaMySQLLangChainDocker

Certifications

AWS Cloud Practitioner Essentials· AWSAWS Lambda Foundations· AWSDevOps: Docker (Advanced)· LinkedIn LearningFine-Tunning for LLMs (Advanced)· LinkedIn LearningFrontend Developer (React)· HackerRankJavaScript (Advanced)· LinkedIn LearningNode.js (Intermediate)· HackerRankProblem Solving (Intermediate)· HackerRankPython (Advanced)· LinkedIn LearningPython (Basic)· HackerRankSQL (Advanced)· HackerRank

Skills

React / Next.jsTypeScriptMUI / TailwindNode.jsPythonMySQLPostgreSQLGraphQL / RESTDockerVercel / GCPNx / CI-CD

Soft Skills

Problem-solvingLeadershipCommunicationCritical thinkingGrowth mindset
© 2025 Oscar Bonelli. Built with Next.js.