Louis Guitton - Freelance Solutions Architect and Machine Learning Engineer

Q: Where is Louis based?

Louis is based in Berlin, Germany .

Q: What languages does Louis speak?

Louis speaks the following languages: German (Advanced), English (Advanced), French (Intermediate) .

Q: How many years of experience does Louis have?

Louis has at least 11 years of experience. During this time, Louis has worked in at least 7 different roles and for 8 different companies . The average length of individual experience is 1 year and 4 months . Note that Louis may not have shared all experience and actually has more experience.

Q: What is Louis's latest experience?

Louis's most recent position is Freelance Solutions Architect and Machine Learning Engineer at Self-employed .

Q: What companies has Louis worked for in recent years?

In recent years, Louis has worked for Self-employed , OneFootball Labs , and OneFootball .

Q: Which industries is Louis most experienced in?

Louis is most experienced in industries like Information Technology (IT) , Media, Entertainment and Publishing , and Sport and Recreation . Louis also has some experience in Energy , Agriculture , and Automotive .

Q: Which business areas is Louis most experienced in?

Louis is most experienced in business areas like Information Technology (IT) , Product Development , and Research and Development (R&D) . Louis also has some experience in Strategy and Planning , Business Intelligence , and Human Resources (HR) .

Q: Which industries has Louis worked in recently?

Louis has recently worked in industries like Media, Entertainment and Publishing , Sport and Recreation , and Information Technology (IT) .

Q: Which business areas has Louis worked in recently?

Louis has recently worked in business areas like Information Technology (IT) , Product Development , and Research and Development (R&D) .

Recommended expert

Berlin, Germany

Experience

Apr 2023 - Present

2 years 11 months

Berlin, Germany

Freelance Solutions Architect and Machine Learning Engineer

Self-employed

Develop and demonstrate solutions using GenAI software like langchain, vercel ai sdk, copilotkit
Work with customers to understand their challenges and provide the best solutions based on open-source data products
Build RAG and GraphRAG solutions using Neo4j, lancedb, and Postgres
Deploy a LLMOps platform using kubernetes, terraform, helmfile, Arize phoenix, mlflow
Architect and build data pipelines using dbt, Trino, Spark, Iceberg, Airflow, ArgoCD, terraform, kubernetes
Delivered user-centred technical strategy for Agriculture 4.0 and precision livestock farming, helping my client secure funding from Bpifrance
Delivered a prospecting tool for a leading French solar carport installer, using geospatial computing (GIS), speeding up the sales process
Built digital twin architecture for solar carports and EV chargers, making real-time monitoring and smart charging possible

Jan 2022 - Mar 2023

1 year 3 months

Berlin, Germany

Head of Engineering

OneFootball Labs

Built and lead engineering for the Blockchain division of OneFootball
Architected and developed backend systems using Python, Node, Go, PostgreSQL, and Typesense (ElasticSearch) taking product from concept to production with paying customers
Delivered robust and scalable e-commerce NFT marketplace, including smart contracts, minting and packing, enabling the business to execute on a new strategic opportunity
Found product-market fit for NFT marketplace, leading to $500k revenue and 115k MAUs
Established the Web3 business unit and defined the structure of teams and processes, bringing solutions in a fast-paced environment
Managed 4 remote and hybrid teams for engineering, data, product and design of 20 staff
Hired and coached talent, built a culture of excellence and transparency, and provided training on blockchain firefighting and technical SEO

Oct 2018 - Jan 2022

3 years 4 months

Berlin, Germany

Principal Machine Learning Engineer

OneFootball

Built and lead the AI practice of OneFootball, a football media platform serving 15 million MAUs with news, OTT streaming, DFS and NFTs in 12 languages
Trained and fine-tuned transformer-based architectures for language, including BERT, using PyTorch, Hugging Face and spaCy
Delivered innovative news tagging solution using NLP, enabling the company to scale its news coverage to 12 languages, 5000 articles per day
Built the company's first knowledge graph, unlocking new entity types like Players and Games, and enabling high-engagement features like news recommendations
Migrated the company's data stack to a modern data stack, including Airflow, dbt, AWS LakeFormation, Snowplow, enabling the company to scale its data processing and analytics
Mentored and coached 2 engineers and 4 analysts, enabling them to grow their skills and take on more responsibilities

Apr 2018 - Jun 2018

3 months

Berlin, Germany

Entrepreneur in Residence

Entrepreneur First

Developed a scalable personality screening tool for talent acquisition managers using fine-tuned deep learning networks for computer vision in PyTorch
Leveraged resources of a worldwide deep-tech incubator for early-career founders

Aug 2016 - Mar 2018

1 year 8 months

Berlin, Germany

Data Scientist

DOJO Madness

Built and maintained a real-time deep-learning recommendations pipeline for 1 million daily users of a mobile app using Spark on AWS EMR and TensorFlow

Jan 2016 - Jun 2016

6 months

Paris, France

Data Science Intern

Ekimetrics

Researched applications of NLP and web crawlers to the econometrics of online earned media for automotive and cosmetics brands

Feb 2015 - Sep 2015

8 months

Brighton and Hove, United Kingdom

R&D Engineer Intern

EDF Energy

Researched applications of software development and data science to the digital innovation of an energy leader

Jun 2014 - Dec 2014

7 months

Singapore

R&D Engineer Intern

Bosch Southeast Asia

Researched applications of data science to storage optimisation of photovoltaics energy within the Power Electronics R&D team

Industries Experience

See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.

Experienced in Information Technology (6 years), Media and Entertainment (4.5 years), Sport (4.5 years), Energy (4 years), Agriculture (3 years), and Automotive (0.5 years).

Information Technology

Media and Entertainment

Sport

Energy

Agriculture

Automotive

Business Areas Experience

The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.

Experienced in Information Technology (10 years), Product Development (8 years), Research and Development (5 years), Strategy (3 years), Business Intelligence (2.5 years), and Human Resources (1 year).

Information Technology

Product Development

Research and Development

Strategy

Business Intelligence

Human Resources

Summary

I'm an experienced Solutions Architect and Machine Learning Engineer with a passion for building transformative digital solutions. I have a strong background in AI, NLP, and Data Engineering, with a focus on delivering high-quality, scalable, and maintainable software. I am a self-starter with a track record of successfully leading projects on frontier technologies.

Skills

Architecture
System Design
Data Pipelines
Microsoft Azure
Amazon Web Services
Microservices
Mlops
Dataops
Docker
Kubernetes
Airflow
Terraform
Argocd
Data Development
Pandas
Duckdb
Dbt
Redshift
Snowflake
Spark
Kafka
Aws Glue
Aws Lakeformation
Postgressql
Elasticsearch
Redis
Neo4j
Snowplow
Full Stack Development
Python
Fastapi
Natural Language Processing
Scikit-learn
Spacy
Networkx
Pytorch
Hugging Face
Transformers
Mlflow
Argilla
Langchain
Llama-index
Typescript
Nextjs
Tailwindcss
C++
Delivery
Agile
Scrum
Technical Project Management
Delivery Roadmaps
Design Thinking
Stakeholder Management
Objectives And Key Results

Languages

German

Advanced

English

Advanced

French

Intermediate

Education

Sep 2012 - Jun 2016

MINES ParisTech PSL

MSc Executive Engineering · Executive Engineering · Paris, France

Certifications & licenses

Neo4j & Generative AI Fundamentals

Neo4j

Foundry & AIP Builder Foundations

Palantir Technologies

Enterprise Design Thinking Co-Creator

IBM

Natural Language Processing Specialization

DeepLearning.AI (Coursera)

SupervisedMachine Learning

DeepLearning.AI (Coursera)

Profile

Created

August 2025

Last Update

August 2025

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Louis based?

Louis is based in Berlin, Germany.

What languages does Louis speak?

Louis speaks the following languages: German (Advanced), English (Advanced), French (Intermediate).

How many years of experience does Louis have?

Louis has at least 11 years of experience. During this time, Louis has worked in at least 7 different roles and for 8 different companies. The average length of individual experience is 1 year and 4 months. Note that Louis may not have shared all experience and actually has more experience.

What roles would Louis be best suited for?

Based on recent experience, Louis would be well-suited for roles such as: Freelance Solutions Architect and Machine Learning Engineer, Head of Engineering, Principal Machine Learning Engineer.

What is Louis's latest experience?

Louis's most recent position is Freelance Solutions Architect and Machine Learning Engineer at Self-employed.

What companies has Louis worked for in recent years?

In recent years, Louis has worked for Self-employed, OneFootball Labs, and OneFootball.

Which industries is Louis most experienced in?

Louis is most experienced in industries like Information Technology (IT), Media, Entertainment and Publishing, and Sport and Recreation. Louis also has some experience in Energy, Agriculture, and Automotive.

Which business areas is Louis most experienced in?

Louis is most experienced in business areas like Information Technology (IT), Product Development, and Research and Development (R&D). Louis also has some experience in Strategy and Planning, Business Intelligence, and Human Resources (HR).

Which industries has Louis worked in recently?

Louis has recently worked in industries like Media, Entertainment and Publishing, Sport and Recreation, and Information Technology (IT).

Which business areas has Louis worked in recently?

Louis has recently worked in business areas like Information Technology (IT), Product Development, and Research and Development (R&D).

What is Louis's education?

Louis holds a Master in Executive Engineering from MINES ParisTech PSL.

Does Louis have any certificates?

Louis has 5 certificates. Among them, these include: Neo4j & Generative AI Fundamentals, Foundry & AIP Builder Foundations, and Enterprise Design Thinking Co-Creator.

What is the availability of Louis?

Louis is immediately available for suitable projects.

What is the rate of Louis?

Louis's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.