👋Hello, I'm

Piotr Laczkowski

Head of AI at Leroy Merlin France 🇫🇷

Passionate about leveraging AI and machine learning to solve complex business problems. Leading and building highly efficientteams to create innovative solutions that drive real-world impact.

Piotr Laczkowski
About Me

About Me

🚀 Data Driven and dynamic R&D Engineer/Data Scientist with a strong aptitude for solving intricate problems and mastering complex concepts. As a swift learner with a solid scientific foundation (PhD in Experimental Physics), I bring extensive experience from high-stakes, cutting-edge tech projects, including a significant tenure in MLOps. 💡My professional interests span across Artificial Intelligence, Machine Learning, MLOPs, software development, and Building Highly Functional Teams. I'm continually seeking opportunities in fast-paced start-ups to leverage my skills 🚀. 🤝 I pride myself on being a team player with a good sense of humor, bringing a positive and engaging dynamic to any team. I am meticulous, results-driven, and possess excellent communication skills 📣. 🔄 With a passion for knowledge sharing and exchange, I foster an environment of continuous learning and growth. 🌱

🚀 Adopt, Adapt, Improve, Disrupt Mindset !

Technical Excellence

Expertise in multiple programming languages and frameworks

Problem Solver

Strong analytical skills with a PhD in Experimental Physics

Fast Learner

Quick to adapt and master new technologies

Innovative Thinking

Creative approach to complex technical challenges

Technical Skills

ML/AI
Tensorflow
PyTorch
Keras
BentoML
ZenML
Lightning
SkLearn
LangChain
LLamaIndex
PyCaret
CatBoost
XgBoost
NeuralXgBoost
DeepLearning
Languages
Python
Javascript
ReactJS
AngularJS
VuJS
HTML
CSS
GoLang
Rust
Frameworks
Django
CrewAI
Next.JS
DVC
Tools
Git/GitHub/GitLab
Airflow
Prefect
Pytest
DevOps
Docker
GitHub
CI/CD
ArgoCD
Jenkins
Cloud
AWS Stack
GCP Stack
Sagemaker
VertexAI
Kubernetes
APIs
GraphQL
FastAPI
LitServe
TFServe
TorchServe
Databases
ElasticSearch
OpenSearch
Redis
Snowflake
Redshift
Timestream
VectorScores
PostgresQL

Projects

Data Automation Software
Data Automation Software

I have developed many python projects in order to automatize various tasks (data-analysis, reporting, plotting etc..), to control sophisticated measurement pipeline with a simple used interface (GUI) or centralize the acquired data in a dedicated database.

PythonGUIPyQT5TinyDB
Reverse Image Search Engine
Reverse Image Search Engine

Build a reverse image search engine to be able to visually recognise a given product based purely on its image.

TensorFlowFastAPIElasticSearchSnowflakeAirflow
Pricing Engine
Pricing Engine

This project was related to a smart pricing engine for a pseudo-unique items sold on an e-commerce platform. This project made use of various models ranging from more to less explaiable: i.e. Probabilistic Bayesian Regression..

TensorFlowAWS SagemakerDockerKubernetesDVCAirflowSnowflakeAWS Sagemaker
Recommendation Engine - Text Matching to Catalogue
Recommendation Engine - Text Matching to Catalogue

The goal of this project was to match a text provided by the client to a product on the e-commerce platform. The main difficulty was related to the fact that this text was a free entry field and necessary information needed to be extracted directly from it. Support for 6 different languages and various type of products needed to be implemented.

SkLearnAirflowSnowflakeDVC
Performence Monitoring and alerting system
Performence Monitoring and alerting system

Developed an advanced time series forecasting system for inventory management, reducing stockouts by 30% and improving supply chain efficiency.

PythonNumpyAirflowSnowflakeDockerKubernetes
Objects colours extraction
Objects colours extraction

Project aim was to extract colors (and their precise vectors RGB) of an object in the provided photo.

OpenCV2AirflowSnowflakeDockerKubernetes
Semantic Image Segmentation
Semantic Image Segmentation

Project aim was to separate the object from its original background and represent it on the unified white background following the style-guide of the e-commerce platform.

TensorFlowPixellibAirflowDockerKubernetes
Fraud Detection
Fraud Detection

Project aim was to detect a potential payment fraud on the e-commerce platform.

TensorFlowAirflowDockerKubernetesSnowflake
Ranking Products Catalogue
Ranking Products Catalogue

Project aim was to rank the most important products to be curated on the backend of an e-commerce platform and focus the efforts needed to account for potential problems in a smart way (increasing the total GMV).

PythonDockerAirflowSnowflake
Recommendation System and Ranking
Recommendation System and Ranking

Physical store recommendation engine with advanced ranking, allowing to curate the catalogue and reduce the stockouts by 30%. The system was able to recommend the most suitable products to a customer based on the previous purchases and the current products available.

TensorFlowPythonGitHubDockerBQ
Reusable Preprocessing Keras Pipeline (KDP)
Reusable Preprocessing Keras Pipeline (KDP)

Developped advances data preprocessing library (OPEN SOURCE) based on Keras preprocessing layers that can be used as a standalone model or incorporated to Keras model as first layers.

TensorFlowPythonGitHubPoetry
Advanced Anomalies Detection AutoEncoders
Advanced Anomalies Detection AutoEncoders

Project aim was to develop an advanced non-supervised anomaly detection system based on AutoEncoders. The system was able to detect anomalies based on historical data statistics and included all the pre and post processing withinthe model.

TensorFlowPythonGitHubDockerPoetry
Chatbots - LLM based systems
Chatbots - LLM based systems

I have developed many LLM based covenrsational systems with several interesting architectures: RAG, Graph-RAG, etc. using various technoligies

LLM (OpenAI, Gemini)LangChainLangServeLlamaIndexOllamaVectorSearchLangFuseFastAPIPythonGitHubDockerPoetry
Virtual Negociacion Coach - LLM based systems
Virtual Negociacion Coach - LLM based systems

I was supervising development of a chatbot that would be able to act as a virtual negociation coach for our staff.

LLM (OpenAI, Gemini)LangChainLlamaIndexVectorSearchLangFuseFastAPIPythonGitHubDockerPoetry
LLM based HR-Company-Agents
LLM based HR-Company-Agents

This project aim was to develop collaborative agents that will be able to interact to achieve overall goal while focusing on specific tasks.

LLM (OpenAI, Gemini)CrewAIFastAPIPythonGitHubDockerPoetry
Semantic security scanner for GitHub
Semantic security scanner for GitHub

Project goal was to be able to detect some non standard patterns in the codebase and alert the team in order to improve the quality of the code and prevent secrets, private data etc. leaks.

LLM (OpenAI, Gemini)CrewAIFastAPIPythonGitHubDockerPoetry

Experience & Education

  • 🤖 Head of AI

    ADEO / Leroy Merlin

    2022 - Present

    Managing big team of data scientists to improve overall business impact, improve customers satisfaction, promoting data driven approach, new technologies and leading digital and AI/GenAI related enterprise transformation in this challenging world of the retail.

    Achievements

    Designing scalable processes (idetion, and demand management) and tools the entire group.

    Led a team of 10+ data scientists across multiple projects / countries

    Implemented DS/MLOps practices improving model deployment from days to hours

    Team Leadership
    Strategy
    MLOps
    AI/ML
    GenAI
  • 👨‍💻 Lead Data Scientist

    🦄 Vestiaire Collective

    2019 - 2022

    Leading data science developing kick ass AI projects and mentoring other team members.

    Achievements

    Mentored junior data scientists and interns

    Leading AI/MLOPs vision for the company

    Creating Highly performant Team

    AI/MLOPs
    Team Leadership
    NLP
    Computer Vision
    Python
    TensorFlow
    PyTorch
  • 🤖 Head of Data/Full Stack Django Developer

    🦄 BackMarket

    2016 - 2019

    Management of Data Science and Analytics Teams and projects coordination with stakeholders.

    Achievements

    Advanced automation and analytics.

    Leading company AI strategy and development

    Leading company Data Science and Analytics teams

    Python
    TensorFlow
    PyTorch
    Django
    Keras
    SQL
    AWS
    Docker
    Jenkins
    GitLab
    Kubernetes
    CI/CD
  • 👨‍💻 R&D Engineer/Researcher

    CNRS/Thales

    2012 - 2016

    Nano-fabrication of Implanted Spintronics transistors. Data analysis, automatisation and project coordination.

    Achievements

    Building R&D engineering projects for research automation and advanced analytics.

    Advanced automation for reseach projects and advances analytics.

    Numeric calculations and finit element simulations.

    Data Analysis
    Statistical Modeling
    SQL
    Python
  • 👨‍💻 R&D Engineer/Researcher

    CEA

    2009 - 2012

    Nano-fabrication, data analysis, modelling and visualisation.

    Achievements

    Numeric calculations and finit element simulations.

    Proving impossible can be achieved in spintronics filed.

    Advanced automation for reseach projects and advances analytics.

    Data Analysis
    Statistical Modeling
    FiniteElements
    Python
  • 👨‍💻 R&D Engineer/Researcher

    CNRS

    2006 - 2008

    Engineering and Analytics for near-field microscopy.

    Achievements

    Developing custom software for near-field microscopy.

    Building R&D engineering projects for research automation and advanced analytics.

    Building custom hardware for near-field microscopy.

    Data Analysis
    Statistical Modeling
    Electronics
    Python