Buenos Aires | cabreramxr@gmail.com | github.com/mxrcabrera | linkedin.com/in/marianella-cabrera-ahumada
My real name is Marianella Cabrera Ahumada, but my friends call me Mar. From my early days, I've been drawn to the universe of technology. At just twelve, I dove into the world of Android by flashing ROMs, rooting phones, and even configuring APNs in order to get free mobile data.
Over the years, my journey has evolved from those early experiments to becoming a seasoned Fullstack .NET Engineer with over 10 years of experience. Starting from frontend development, my skills expanded to encompass databases, backend solutions, and everything in between.
Throughout my career, I've been enriched by the work on a diverse array of projects, each presenting unique challenges and growth opportunities. From spearheading the development of an e-commerce platform for the sexual health industry to fine-tuning SEO strategies for prominent brands.
What truly drives me is not just the technical aspect of my work, but the tangible impact it has on users. Whether it's simplifying communication for a residential community management platform or empowering users to address health concerns, I'm fueled by the desire to create meaningful solutions that make a real difference.
I'm not just coding; I'm crafting solutions that empower users and drive business success.
Remote
Built carrier-agnostic adapter system unifying multiple shipping provider APIs. Optimized PostgreSQL schema for high-frequency tracking updates. Designed real-time notification pipeline for shipment status changes.
Technologies: ASP.NET Core, PostgreSQL, RabbitMQ, Docker
Remote
Built domain models and API layer for DefyED, a healthcare e-commerce platform. Engineered server-side caching that improved mobile response times. Refactored endpoint structure to match evolving business workflows.
Technologies: ASP.NET Core, Entity Framework, SQL Server, Redis
Remote
Designed evaluation frameworks and NLP test scripts in Python to assess and improve LLM response quality. Identified and resolved edge cases across conversation flows.
Technologies: Python, NLP, LLM Evaluation
Remote
Redesigned facility reservation system for Frontsteps, fixing concurrency issues. Built modular permission framework and optimized query patterns for community dashboards with high user volume.
Technologies: ASP.NET Core, Entity Framework, SQL Server, Azure
Buenos Aires
Built microservices for Ationet's fuel management platform. Developed transaction reconciliation system and dynamic UI for parking management adapting to different facility configurations.
Technologies: ASP.NET Core, Microservices, SQL Server, Angular
Buenos Aires
Worked on e-commerce frontend and UX for one of Latin America's largest retail chains. Handled visual design and implementation across product pages.
Technologies: JavaScript, HTML/CSS, UX Design
Full-stack class management platform built for a real Pilates studio. Handles student bookings, multi-instructor scheduling, payment tracking, and a self-service portal. Mobile-first, live in production.
Technologies: Next.js, PostgreSQL, Tailwind CSS, TypeScript
Interactive product configurator built for a quartz surfaces client. Selects parameters across 6 dimensions and generates a unique formulation code in real time. Prototype delivered as part of a larger platform proposal.
Technologies: Next.js, TypeScript, Tailwind CSS
AI-powered lead hunting system. Scrapes HackerNews, Reddit and RemoteOK, scores leads by tech stack and location fit, and generates personalized outreach messages using a local LLM.
Technologies: Node.js, TypeScript, SQLite
Internal tool that automates monthly expense dispatching for a residential building. Generates PDFs, sends personalized emails to each unit, and logs every communication. Replaced a fully manual process.
Technologies: Next.js, Node.js, TypeScript, Python
A Claude Code skill that runs autonomous multi-phase QA reviews. Audits 20 categories — security, business logic, database, accessibility, CI/CD, and more — then auto-fixes issues by severity, one commit per fix.