Leandro Ardissone

Senior Full-Stack Developer · AI/LLM Engineer

Full-stack developer with 25+ years of experience building scalable solutions across diverse industries including healthcare, gaming, fraud detection, and enterprise AI. Currently focused on AI/LLM integrations — building RAG systems, AI agents, and vector database architectures.

Pergamino, Argentina@ leandro@ardissone.comEnglish (Professional)Spanish (Native)

/Skills

Backend

PythonDjangoFlaskNode.jsNestJSExpressElixir

Frontend

TypeScriptReactNext.jsReact NativeVue.js

AI / LLM

RAG SystemsAI AgentsEmbeddingspgvectorOpenAIClaudeGemini

Cloud

AWS (ECS, Fargate, Lambda, SQS)ServerlessDocker

Data

PostgreSQLMongoDBRedisDynamoDBMySQL

/Experience

Sprint Studios / Optic Power

May 2020 — Present

Senior Software Developer

Full-stack developer working across multiple client projects, with recent focus on AI/LLM integrations and enterprise solutions.

Enterprise Knowledge Base Platform

Architected and developed a multi-tenant RAG system enabling companies to build AI-powered knowledge bases. Implemented integrations with Google Workspace and Microsoft Outlook for automatic data ingestion. Built specialized AI agents for querying emails, calendar events, and meeting notes.

PythonpgvectorOpenAI APIClaude APIGemini

MundoLMS

Led the development team in building a learning management system from the ground up, enabling educational institutions to deliver online courses. Responsible for architecture decisions, feature development, and team coordination.

ReactNode.jsPostgreSQL

Snappt

Contributed to frontend and backend development of a fraud detection platform helping property managers identify falsified financial documents.

ReactNode.js

Blitz

Worked on a gaming companion app providing real-time statistics to players, focusing on the CS:GO integration.

ReactTypeScript

Tathata Golf

Contributed to the development of a React Native mobile application for golf training.

React Native

Portal One & Player's Lounge

Developed serverless backend infrastructure for mobile gaming platforms.

AWSServerlessNode.js
Node.jsPythonTypeScriptReactNext.jsReact NativePostgreSQLMongoDBRedisAWSServerlessDockerNestJSAdonisJSElixir

Mobile-Tonic

Apr 2016 — Mar 2020

Senior Software Developer

Developed web applications, mobile apps, chatbot platforms, and cloud infrastructure for various clients.

Services Marketplace

Developed a marketplace website connecting service providers with customers.

Node.jsReact

Multi-Channel Chatbot Platform

Built a chatbot platform supporting Facebook Messenger, Slack, WhatsApp, and Telegram. Implemented natural language processing and conversation flows.

Node.jsNLP

Serverless Infrastructure

Designed and implemented serverless architecture on AWS using FaunaDB for real-time data synchronization.

AWS LambdaFaunaDB
Node.jsExpressReactNext.jsMongoDBRedisAWS LambdaFaunaDBReduxMobXDocker

Freelance

Oct 2014 — May 2020

Web & Mobile Developer

Provided full-stack development services to clients worldwide, specializing in healthcare technology and custom web applications.

Healthcare Applications

Developed multiple health-related applications including electronic health record (EHR) systems and tools for processing and analyzing disease-specific medical data.

PythonDjangoPostgreSQL

Medical Research Platform

Built a mobile application for capturing patient data, analyzing it, and assisting physicians in research and medical article writing.

React NativeDjango
PythonDjangoFlaskPostgreSQLMongoDBMySQLRedisNode.jsExpressReactVue.jsReact NativeServerlessDockerAWS

RedLotus

Mar 2015 — Mar 2016

Software Developer

Worked on marketing technology tools for publishers as part of the AddNow product team.

Database Optimization

Redesigned the MongoDB database structure from a flat event model to a time-series architecture, significantly improving query performance and analytics capabilities.

MongoDB

Publisher Dashboard

Developed the publisher-facing dashboard as a single-page application, providing real-time analytics and campaign management.

AngularJS

REST API

Implemented backend APIs using Django REST Framework with JWT authentication.

DjangoDRFJWT
PythonDjangoDRFPostgreSQLMongoDBAngularJSJWT

Munchkin Fun

Dec 2011 — Mar 2015

Lead Software Engineer

Led the technical development of a platform for discovering and managing kids' events in the Florida area.

Platform Development

Created two interconnected applications from scratch — an event discovery platform and a venue management system.

PythonDjangoMongoDBCelery

Infrastructure Architecture

Designed and built the complete server infrastructure including load balancers, background task workers, application servers, databases, and CDN integration.

AWSSaltStackNginx

Deployment Automation

Automated deployment processes using AWS and DigitalOcean APIs with SaltStack for configuration management.

SaltStackAWS
PythonDjangoPostgreSQLMongoDBCelerySaltStackRedisRabbitMQAWS

Quolaw

Dec 2012 — Sep 2014

Software Developer

Joined an early-stage startup building case management software for law firms.

Backend & API

Improved and extended the Django backend, implementing new features and optimizing API performance using Django REST Framework.

DjangoDRF

Mobile Application

Built a hybrid mobile app using Cordova with AngularJS, enabling lawyers to access case information on the go.

CordovaAngularJS
PythonDjangoDRFPostgreSQLBackbone.jsAngularJSCordova

Entaste LLC

Nov 2010 — Nov 2012

Python Developer

Contributed to building one of the largest wine databases, powering web and mobile applications across South America.

Digital Wine Lists

Created the first digital wine list system for restaurants in South America, allowing venues to build lists from their cellar inventory with sommelier notes. Waiters used tablet devices to help customers browse and order wines.

PythonDjango

High Availability Infrastructure

Implemented load balancing and high-availability configurations to handle traffic spikes.

NginxAWS
PythonDjangoMongoDBPostgreSQLRedisNginxAWS

Freshout

Sep 2008 — Sep 2009

Executive Technical Director

Research and implementation of web technologies to improve development efficiency.

PythonDjangoJavaScript

HiDef Web Solutions

Sep 2005 — Aug 2008

Frontend Developer

Developed PHP/MySQL web applications using the LAMP stack. Built websites using Drupal CMS with Ajax-powered interfaces.

PHPMySQLDrupalJavaScript

AXG Tecnonexo

Nov 2003 — Dec 2004

Frontend Developer

User interface development for LMS and eLearning systems.

JavaScriptPHPMySQLFlash/ActionScript

i-logic web solutions

Feb 1999 — Nov 2003

Freelance Programmer & Project Manager

Worked with various clients on websites and projects around the world. Oversaw projects and managed a team of 3 employees.

PHPMySQL

/Education

Escuela de Enseñanza Técnica Nro 1 - Bartolomé Mitre

1994 — 1998

High School, Computers

/Contact