Léo Arnoult De Almeida

Data & AI Engineer

Data & AI engineer passionate about building end-to-end scalable data architectures, implementing AI solutions using LLMs, and transforming raw data into actionable insights to drive business performance.

Work

Maxxing

Data Science & AI Engineer
– Present

Leading AI and data initiatives to develop a company-wide data platform and implement LLM-driven applications.

  • Architected and deployed a complete data platform enabling analytics and AI across departments.

  • Developed and integrated LLM-based features enhancing user experience and personalization.

  • Created advanced dashboards to support strategic decision-making using BI tools.

  • Integrated data workflows and AI models within existing Angular, PHP, and PostgreSQL systems.

Data Science & AI Engineer (Apprenticeship)

Contributed to machine learning model development, data analysis, and dashboard creation to support business needs.

  • Collected and analyzed business-critical data to identify insights and trends.

  • Developed predictive machine learning models to optimize targeting and improve performance.

  • Designed dashboards to make analytics accessible to technical and non-technical stakeholders.

  • Conducted continuous technology watch and proposed innovations.

Data Engineering Intern

Inflyter

Built foundational data tracking infrastructure to monitor user interactions and business metrics.

  • Defined a standardized event tracking nomenclature.

  • Selected and implemented a Customer Data Platform (Segment).

  • Integrated tracking capabilities across backend, frontend, and mobile environments.

  • Created analytics dashboards in Mixpanel and contributed to agile development ceremonies.

Private Tutor

– Present

Delivered personalized tutoring in mathematics, computer science, and physics for a wide range of learners.

  • Designed customized learning paths for students from elementary to adult education.

  • Supported preparation for exams and improved overall academic outcomes.

  • Adapted teaching methodologies to individual learning styles.

Education

ISEN – Graduate School of Engineering in Digital Technologies and High Tech

Master of Engineering (M.Eng.) in Data Engineering & Artificial Intelligence
Courses
  • Machine Learning and Deep Learning

  • Big Data & Cloud Computing

  • Business Intelligence

  • Data Architecture & Pipelines

  • Advanced Python and Software Engineering

  • Statistics and Probability

  • Data Ethics and Governance

Projects

Enterprise Data Platform

Development of a scalable enterprise-grade data platform enabling AI, BI, and advanced analytics.

  • Built modular pipelines for ingestion, transformation, and analytics.

  • Enabled AI-driven applications and automated decision-making workflows.

LLM-Based Search Optimization

Development of LLM-powered features to improve user search relevance and experience.

  • Implemented contextual semantic search using large language models.

  • Integrated AI services into production applications.

Skills

Programming

  • Python
  • JavaScript
  • SQL
  • PHP

Data Engineering

  • Apache Spark
  • Polars
  • Airflow
  • Docker
  • Kubernetes
  • PostgreSQL

Machine Learning & AI

  • LLMs
  • Machine Learning Models
  • Clustering
  • Scikit-learn
  • MlFlow

Language models

  • Agentic
  • OpenAI
  • RAG
  • Agent SDK

Cloud & Infrastructure

  • Azure
  • Github
  • Microsoft fabric
  • Terraform

Business Intelligence

  • Dashboarding
  • Data Visualization
  • Powerbi
  • Chart.js

Languages

French

Native speaker

English

Professional working proficiency

Interests

Technology & Innovation

  • Cloud Computing
  • Home Lab
  • Embedded Systems
  • Home automation

Science

  • Chemistry
  • Physics
  • Electronics