Nicolás Battaglia

Sr. Backend Engineer · Mar del Plata, Argentina

Nicolás Battaglia

About

  • Sr. Backend Engineer at MODO
  • Engineer with strong background in Node.js & distributed systems
  • Exploring Go & Rust
  • Based in Mar del Plata, Argentina
  • LinkedIn

Experience

  1. MODO — Sr. Backend Engineer

    February 2025 – Present

    1. Core backend engineer for a QR-based payment system used by ~150K daily users, enabling seamless ride payments directly from bank accounts
    2. Designed and shipped the end-to-end trip & payment flow: QR scan → async processing via SQS → bank debit confirmation
    3. Built fraud prevention systems (deny lists, account blocking) and automated debt recovery
    4. Shipped offline QR support with certificate signing for unreliable connectivity scenarios
    5. Led production on-call, handling incidents with Datadog; operated services via AWS Lambdas + Kubernetes

  2. Denode — Backend Developer

    October 2023 – February 2025

    1. Developed Remove Background , an app for isolating subjects from images
    2. Full stack (Node.js + React) for Feels Like Gaming: a platform to store and manage commercial gaming keys across Xbox, PlayStation, and more
    3. Built real-time stock visibility, transaction history, and stock management for administrators

  3. SecurityScorecard — Sr. Backend Engineer

    October 2021 – March 2023

    1. Developed a rate limit solution extended across the organization to track endpoint and function usage, enabling access segmentation by user type
    2. Worked on Cyber Risk Quantification (CRQ) : translating cyber risk into financial terms to support cost-benefit analysis of security investments

  4. MURAL — Developer

    October 2020 – October 2021

    1. Canvas Workflows team: export/import, visualization of external content, image search & cropping
    2. Core Platform team: extensibility, integrations, and third-party API development

  5. SparkDigital — Sr. Software Engineer

    August 2018 – October 2020

    1. Backend design from scratch with Node.js for W. W. Norton , focusing on scalability and performance (NestJS, Fastify, GraphQL, MongoDB, Redis)
    2. Real-time collaboration backend for a Gantt project tool using Socket.io, Firebase, and JWT
    3. Co-founded the RAY Initiative: internal project incubator for employee professional development

Education

  1. Universidad FASTA — Systems Engineer

    2008 – 2017

    1. Final Degree Project — Research in Computer Forensics: conducted research on physical and logical data extraction techniques for Android OS devices.