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FABRICIO DUBRA

Staff Software EngineerWorking remotely from Luján de Cuyo, Argentina

ABOUT ME

Staff Software Engineer with over 18 years of experience architecting, scaling, and operating mission-critical distributed systems, real-time platforms, and high-throughput data pipelines.

Throughout my career—from engineering foundational pay-per-click ad systems at MercadoLibre (MercadoClics) to serving as Founding Engineer and IT Lead at Docturno across nearly 7 years—I have specialized in solving complex bottlenecks across databases, APIs, and event-driven architectures.

Currently Staff Software Engineer at TitanX (following the acquisition of FrontSpin), owning the telephony, real-time call ingestion, and CRM synchronization architecture under a spec-driven, AI-augmented engineering workflow.

EXPERIENCE

Show earlier experience (2007 – 2022 · Docturno, MercadoLibre)Hide earlier experience
  • Docturno

    Jul 2021 - Nov 2022

    Full-time

    Lead Senior Full-Stack Web Developer

    Directed IT operations and database scaling initiatives for an established digital healthcare booking platform. Conducted technical interviews to grow the engineering team and personally onboarded, trained, and mentored every developer who joined Docturno. Optimized complex MongoDB aggregations and indexing strategies to sustain rapid user adoption while maintaining consistent low-latency performance as user volume scaled.

  • Docturno

    Jan 2016 - Jun 2021

    Full-time

    Senior Full-Stack Web Developer (Founding Engineer)

    Founding Engineer—and for extended periods the sole full-time developer—responsible for building and scaling Docturno from greenfield concept into a nationwide healthcare scheduling platform. Designed RESTful microservices (Play Framework / Java, Express.js, MongoDB) and cloud deployment infrastructure on AWS.

  • Grayshirts

    Sep 2012 - Dec 2015

    Full-time

    Java Full-Stack Web Developer

    Worked on multiple Play Framework (Java) projects, primarily for two startups: Leadaki (digital marketing) and Mangowin (job listings), and participated in ~10 technical interviews to help evaluate and grow the engineering team.

  • Freelance

    Mar 2012 - Nov 2012

    Freelance

    Python Full-Stack Web Developer (Freelance)

    Built web applications for artists using Pyramid and Flask (Python), with custom frontends.

  • Vostu

    Nov 2011 - Feb 2012

    Full-time

    Java Semi-Senior / Web Frontend Developer

    Developed server and web frontend game logic for Java-based multiplayer casual games (Golmania, CandyDash, ShakingVegas).

  • Movile

    Aug 2011 - Oct 2011

    Full-time

    Java Semi-Senior Developer

    Worked on a Java/Python migration project to consolidate multiple billing and notification services into a centralized platform.

  • Band of coders

    Jan 2011 - Jul 2011

    Full-time

    Java Game Developer

    Engineered multiplayer gameplay and persistence features for the Java server of TailTowns, a web-based 3D virtual world.

  • MercadoLibre

    Jul 2009 - Dec 2010

    Full-time

    Analyst Web Developer

    Scaled and optimized MercadoClics, the high-traffic pay-per-click advertising platform that established the technical foundation for MercadoLibre's advertising ecosystem, solving enterprise data persistence and throughput challenges.

  • MercadoLibre

    Dec 2007 - Jun 2009

    Full-time

    Assistant Web Developer

    Engineered account security enhancements in Java, then joined the foundational MercadoClics team developing high-volume ad auction services on Oracle Database.

FEATURED ARCHITECTURAL SYSTEMS

HOW I WORK

METHODOLOGY

Spec-Driven Architecture

I author comprehensive design specifications, domain boundaries, data models, failure modes, and rollback strategies before writing code. I orchestrate autonomous AI coding agents to plan, implement, and test high-coverage systems, maintaining full human accountability for architecture, security, and correctness.

VELOCITY & QUALITY

AI-Augmented Engineering

Every critical service is backed by automated database test suites, contract validation, and strict multi-tenant isolation, achieving high delivery velocity without architectural drift or technical debt.

CORE STACK & TECHNICAL DOMAINS

Architecture & Patterns

  • Distributed Systems
  • Transactional Outbox Pattern
  • Event-Driven Architecture (AMQP)
  • Concurrency Control & State Drift

Data Infrastructure

  • PostgreSQL
  • MongoDB
  • Elasticsearch
  • Redis

Languages & Runtimes

  • TypeScript
  • Node.js
  • Java
  • Next.js

APIs & Event Streaming

  • RESTful APIs
  • Webhooks
  • Public APIs & OAuth2
  • AMQP / RabbitMQ

EDUCATION

CONTACT