Leonardo Lob

Software Developer

Email: leo@lob.com.arPhone: +972 53 474 9772LinkedIn: linkedin.com/in/leolobLocation: Raanana, Israel

Senior Fullstack Engineer and hands-on architect with 25+ years of experience building production systems that need to be reliable, scalable, and operationally clear.

My work focuses on transaction-critical backends, distributed workflows, concurrency, performance, and pragmatic product delivery. I combine deep backend engineering with modern frontend work, technical leadership, and real-world integrations across payments, commerce, and operational platforms.

Selected Projects

Projects

CPT ERP System

Core B2B ERP for a large office-supplies distributor operating across multiple sales channels in Argentina.

Centralized customers, orders, stock, invoicing, payments, logistics, current accounts, and real-time external order ingestion. Built around high concurrency and strict consistency for stock and financial balances under heavy operational load.

RoleSenior Backend Engineer / hands-on Tech Lead. Architecture, backend domain design, critical business logic, integrations, performance, concurrency, and technical mentorship across a team of 5-7 developers.

Load2,000-3,000 daily orders in normal operation, peaks of up to 2,000 orders per minute during campaigns, tens of thousands of external users, and around 140-150 concurrent internal users.

ImpactCore system of the business. It automated the full commercial and logistics flow, reduced operational errors through smart business rules, integrated external sales channels in real time, and improved processing times with an asynchronous architecture.

  • Node.js
  • TypeScript
  • Express
  • TypeORM
  • MySQL
  • Vue.js
  • Quasar
  • RabbitMQ
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CPT ERP placeholder screen one
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Mali ERP & Commerce Platform

ERP and commerce platform for Mali, one of the largest stationery retailers and wholesalers in Buenos Aires, serving multiple public-facing sales channels.

Built to support retail and wholesale operations with high seasonal demand, centralizing business flows while sustaining heavy transactional volume before the start of the school cycle.

RoleSenior backend and architecture work around transactional workflows, channel integrations, and high-load operational processing.

LoadAround 50 sales per minute during peak back-to-school demand, with roughly 100 items per sale across multiple customer-facing channels.

ImpactSupported core commercial activity under intense seasonal demand and enabled multi-channel public sales with strong operational continuity.

  • Node.js
  • TypeScript
  • MySQL
  • Commerce integrations
  • ERP
  • High-concurrency workflows
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Mali ERP placeholder screen one

BingoAdom

A lightweight social app built around shared real-life missile-siren moments with a humorous bingo mechanic.

Designed as a simple, engaging experience where users generate bingo cards, track real-life scenarios, and share moments with friends. Humor on the surface, but built with clean technical foundations and scalability in mind.

RoleProduct design, full-stack implementation, UX direction, and architecture. Built end to end as a solo project.

LoadSocial app designed for lightweight real-time interaction and scalable async processing.

ImpactTurned a stressful everyday reality into a social, memorable interaction pattern with a lightweight product experience that is easy to use and easy to extend.

  • Vue
  • Quasar
  • Python
  • PostgreSQL
  • Docker
  • RabbitMQ
  • Redis
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BingoAdom placeholder screen one
https://www.bingoadom.com/

SirenForecast

Public web app that estimates the statistical likelihood of receiving an alert in a specific city based on historical Tzeva Adom / Tzofar data.

Built as a statistical layer on top of historical alert data, with city-based forecasting by time window, travel risk analysis between origin and destination, multilingual support, internal admin tools, and separate sync, backfill, and enrichment jobs.

RoleFull product and engineering ownership across frontend, backend, data modeling, and supporting jobs. Built end to end as a solo project.

LoadPublic-facing app with forecast queries, admin tooling, and background sync, backfill, and city-enrichment jobs.

ImpactTurned raw historical alert data into a public-facing decision-support product with a clear user experience and internal operational tooling.

  • Next.js
  • React
  • TypeScript
  • PostgreSQL
  • Prisma
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SirenForecast placeholder screen one
https://sirenforecast.com/en

Driver Monitoring System – Experta Seguros

Real-time fleet safety platform focused on detecting fatigue, drowsiness, and driver distraction through mobile-device camera analysis.

Built to improve road safety in transport fleets by processing real-time driver behavior signals, triggering immediate alerts, and storing operational data for later analysis. The system connected mobile clients, web tools, and backend event pipelines around critical safety workflows.

RoleBackend engineering and system architecture. Real-time event APIs, data modeling, query optimization, client integrations, and critical alert/event mechanisms.

LoadReal-time event ingestion and alerting for concurrent fleet operations across multiple vehicles.

ImpactImproved accident prevention capabilities, gave logistics teams real-time visibility into driver condition, and created historical metrics to support operational decisions across multiple vehicles at once.

  • Node.js
  • MySQL
  • Swift
  • Kotlin
  • React
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Experta driver monitoring placeholder screen one