Resume

Senior Full-Stack Developer & AI Engineer

11+ years of experience

ReactNext.jsTypeScriptPythonNode.jsClaude AIFastAPIAngularDocker

LinkedIn GitHub mariano@maaar.io

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Marssan, LLCFullStack AI Developer

Dec. 2025 – Present | Remote

Architected and engineered a scalable ticketing ecosystem and event management suite for dance festivals, alongside a community-driven social networking platform.
Implemented advanced AI capabilities utilizing Claude, Gemini, and OpenAI to deliver intelligent features and enhance user engagement.
Developed robust Python-based backend services, integrating AI-driven data generation pipelines and automated processing workflows using Celery and RabbitMQ for distributed task queues, background job execution, and reliable asynchronous processing.
Built modern web applications using Next.js for both the frontend and backend, leveraging server-side rendering, API routes, and server actions to deliver scalable, high-performance user experiences.
Developed and deployed high-performance, cross-platform mobile applications for iOS and Android from the ground up using React Native.
Designed scalable backend architectures with Node.js, Next.js, Supabase, Redis, RabbitMQ, and Celery, enabling real-time data synchronization, authentication, caching, background processing, and optimized application performance.
Orchestrated the end-to-end software development lifecycle, including system architecture, testing, deployment, monitoring, and continuous product iteration driven by user analytics.

Next.js
React
Python
FastAPI
Node.js
React Native
Claude AI
OpenAI
Gemini
Supabase
Redis
RabbitMQ
Celery
TypeScript
GraphQL
MongoDB
Vue.js
Google Maps API
PostgreSQL
AWS
CI/CD
Kubernetes
MCP Servers
RAG

E-FrontiersBackstage Developer

Sep. 2025 – Jan. 2026 | Remote

Architected and maintained an internal developer portal using Backstage for BASF, streamlining workflows for one of the world's leading chemical enterprises.
Developed custom plugins and backend services using TypeScript and Python, integrating with RabbitMQ, Celery, and Redis to orchestrate event-driven workflows, asynchronous automation, CI/CD pipelines, Kubernetes operations, and cloud infrastructure provisioning.
Managed software catalogs, TechDocs, and Scaffolder templates to standardize and accelerate service creation across global engineering teams.
Collaborated within a fully remote agile environment, adhering to Thoughtworks XP engineering principles and best practices.

Backstage
TypeScript
Python
RabbitMQ
Celery
Redis
Kubernetes
CI/CD
Platform Engineering
Azure
React Native
MongoDB
Google Maps API
FastAPI
Next.js
Claude AI
MCP Servers
RAG

Páramo TechnologiesSenior TypeScript Engineer

Jun. 2023 – Jul. 2025 | Remote

Developed high-quality, scalable frontend applications with React & TypeScript and Node.js backend services.
Built and maintained a complex BFF dashboard for traders at betonline.ag, featuring real-time data and advanced management tools.
Collaborated with a fully remote global team to deliver clean, maintainable, high-performance code.
Utilized Docker & Kubernetes for deployment and scalability, integrating backend services built on .NET.
Applied best practices in architecture, performance, and code quality in a fast-paced environment.
Leveraged AI tools (LLMs) for code generation and development workflow acceleration, improving delivery speed and code quality across the team.

TypeScript
React
Node.js
Docker
Kubernetes
.NET
Svelte
Next.js
Backstage
JavaScript
React Native
Azure
CI/CD
Claude AI
OpenAI

MarssanSenior Software Engineer

Apr. 2022 – May. 2023 | Delaware, Remote

Developed scalable frontend components using React, Next.js, and Svelte/SvelteKit for a ticketing system.
Built and maintained Node.js backend APIs and integrated REST and GraphQL endpoints, managing state with Redux and React Context.
Optimized application performance and load times using code splitting, lazy loading, and frontend best practices.
Refactored legacy code to improve maintainability, reduce technical debt, and support feature scalability.
Collaborated with remote teams, ensuring clean, maintainable, and high-performance code.

Next.js
React
Node.js
Prisma
Docker
TypeScript
GraphQL
Redux
React Native
MongoDB
Vue.js
Google Maps API
Django
Python
AWS
CI/CD
Kubernetes
FastAPI
OpenAI

Banco de Crédito BCPTechnical Leader

Aug. 2020 – Dec. 2021 | Lima, Perú

Led 25 developers in building the Yape App (Peru's Revolut), planning sprints and overseeing technical execution.
Developed Angular/React frontend and Java/Node.js backend using microfrontend & microservices architectures.
Migrated infrastructure from AWS to Azure, ensuring scalable, reliable deployments.
Integrated gamification features and innovative functionalities to boost user engagement.
Automated workflows and deployments using Docker, ensuring clean CI/CD pipelines.

Angular
React
Node.js
Java
Spring Boot
Hibernate
Docker
Azure
TypeScript
Microservices
AWS
Kubernetes
PostgreSQL
MongoDB
CI/CD

AVANTICASenior Software Engineer

May. 2018 – Aug. 2020 | Lima, Perú

Led frontend (React/Angular) and backend (Java/Spring Boot/Node.js) development, delivering secure, scalable banking applications.
Introduced Atomic Design patterns, improving component structure, reusability, and maintainability across projects.
Built custom Node.js backend APIs and integrated React frontends, ensuring seamless feature delivery end-to-end.
Designed and optimized MySQL databases, including schemas, relationships, and queries for high-performance data access.
Performed performance optimizations, profiling code and database queries to reduce server load and improve response times.
Implemented Git version control to enhance collaboration and streamline development workflows.

Node.js
Angular
React
Java
Spring Boot
Hibernate
Python
MySQL
TypeScript
Docker
React Native
GraphQL
Vue.js
PostgreSQL
MongoDB
AWS
Azure
CI/CD
FastAPI

URBANERSenior Frontend Developer

Jun. 2017 – May. 2018 | Lima, Perú

Developed main user platform and admin dashboard for Urbaner, a scalable on-demand delivery platform with real-time tracking.
Improved UI/UX for web and admin users, enhancing engagement and operational efficiency.
Integrated interactive maps, real-time tracking, and live data features for a dynamic user experience.
Built reusable, modular React components, increasing development efficiency and maintainability.

Node.js
Angular
React
Redux
Axios
JavaScript
Google Maps API
HTML
CSS
TypeScript
AWS
Docker
Python
Django
MongoDB
PostgreSQL
CI/CD

Grupo El Comercio | OfertopFrontend Developer

Feb. 2016 – Jun. 2017 | Lima, Perú

Developed Ofertop Mailing, an email template generator for marketing campaigns, using PHP, Angular, and Webpack.
Led homepage redesign with BEM and Atomic Design, improving modularity, maintainability, and UX.
Integrated secure payment methods (PAYU, PagoEfectivo) across multiple workflows for ad publishing.
Enhanced dashboard and retailer modules with validations, micro-interactions, and optimized layouts.
Implemented SEO-friendly filters, responsive ad listings, and optimized posting flows.
Integrated Google Maps interactive services with asynchronous API calls and custom event handling.
Built custom UI components (sliders, infinite scroll, async content loading) using vanilla JavaScript.

PHP
Angular
React
Python
Webpack
JavaScript
Google Maps API
MySQL
SASS
jQuery
AWS
TypeScript
HTML
CSS
Docker
PostgreSQL
CI/CD

Sr BurnsFrontend Developer

Oct. 2015 – Feb. 2016 | Lima, Perú

Designed and coded responsive email templates for marketing campaigns, ensuring cross-client compatibility (Outlook, Gmail, etc.).
Developed interactive projects (Buzzard Warns, raffles) using Angular frontend and Python backend.
Built landing pages for advertising campaigns, optimized for performance and lead conversion.
Led responsive redesigns of brand portals, improving usability and aligning with client guidelines.

Angular
Python
JavaScript
HTML
CSS
SASS
Bootstrap
jQuery
Django
Node.js
Express.js
Socket.io
GraphQL
CI/CD

CrehanaFrontend Developer

Apr. 2015 – Oct. 2015 | Lima, Perú

Developed landing pages and redesigned legacy pages using Angular, Stylus, and Gulp with a Python backend.
Integrated Stripe payment module, customizing frontend interactions with Angular for smooth user experience.
Built a real-time notification system using Node.js, enhancing user engagement and in-app communication.
Implemented course packs, grouping promotions by user interest and backend logic, improving content discovery.
Contributed as part of the first core team at Crehana, one of Peru's most successful edtech startups.

Angular
Python
Node.js
JavaScript
Stylus
Gulp
Django
Stripe
Express.js
TypeScript
CI/CD
CSS
AWS
Webpack
Scrum
MongoDB
PostgreSQL

EcocenturyFull Stack Developer

Nov. 2014 – Mar. 2015 | Lima, Perú

Built internal tools with Django and Angular, led requirements gathering, and developed responsive UIs with reusable components.
Conducted interviews with stakeholders to gather system requirements.
Designed DB diagrams and use cases to define system modules.
Developed features including animations, validations, and code reuse.

Python
Django
Angular
JavaScript
MySQL
MongoDB
Bootstrap
Flask
AWS
Scrum
CI/CD

Iwar SolutionsFull Stack Developer

Aug. 2014 – Oct. 2014 | Lima, Perú

Led development of internal systems using Angular and Python, designing database schemas and building responsive UIs.
Redesigned Ademinsa portal with PHP/Laravel backend and Angular frontend.
Created new administrator modules with bar graphs, statistical data, and reports.

Angular
Python
PHP
Laravel
MySQL
JavaScript
Node.js
Scrum
CI/CD

Royal PioneersFull Stack Developer

Jun. 2014 – Aug. 2014 | Lima, Perú

Built internal systems with Django and Angular.
Designed database schemas and responsive UIs.

Python
Django
Angular
JavaScript
MySQL
Bootstrap
Node.js
Scrum
CI/CD

Projects

Tailify

A platform that automatically tailors resumes to any job posting in any language. Includes Voyage, an AI-powered interview prep assistant with real-time web search and MCP integration.

Next.js 16FastAPIPostgreSQLpgvectorRedisCeleryClaude AIFastMCPStripeReact Native

AEOS — Autonomous Engineering OS

AI-powered agent runtime that transforms a GitHub Issue or Slack command into a completed Pull Request — fully autonomously. Orchestrates 6 engineering domains via Claude API.

TypeScriptNode.js 24FastifyPostgreSQLClaude APIAWS ECSTerraformDockerAI Agents

Crehana

Part of the first core team at Crehana, one of Latin America's fastest-growing edtech startups. Built core platform features, real-time notifications, and Stripe payment flows.

PythonDjangoAngularReactNode.jsMongoDBStripe

Education & Certifications

Federico Villarreal University

BS, Systems Engineering, Computer Science

Udacity

React Developer NanodegreeFullStack Developer

Platzi

Desarrollo Multiplataforma con React NativeDjango & Python ProgrammingNext.js CertificateCurso de Introducción a React NativeAmazon Web Services CertificateMicrosoft Azure CertificateCurso de Claude AIDesarrollo Backend con Node.js