Curriculum Vitae

I am a software engineer with an interest in PostgreSQL (particularly the query planner), the Rust programming language, and geopolitics as a hobby.

A shorter version of this résumé is available in PDF format here.

Professional experience

Tech lead

Xeneta

2020 - now

Tech lead and software developer, tasked with the maintenance, modernization and development of one of Xeneta's products, with a focus on setting the medium term technical direction of the product.

This included building a new data pipeline from the ground up, using Snowflake and DBT.

My role also includes mentoring and coaching other developers, as well as managing the ongoing projects to ensure they are delivered on time and with the expected quality.

Main technologies used:

Python: Flask, Pandas, Seaborn, Pytest
SQL: PostgreSQL
AWS: Lambda, Batch, ECS, RDS, ... orchestrated with Terraform
Docker and docker-compose
CI/CD: Gitlab CI, Github Actions

Roles:

2020-2022: mid-level software engineer, in a product team
2023: senior software engineer, in the data science team
2024 onward: tech lead in a product team

Oslo, Norway 🇳🇴

Ph.D. in Computer Science (unfinished)

Laboratoire Informatique de Grenoble

2016 - 2020

Research on query optimization in DBMSs, specifically on the cardinality estimation component.

The idea is to gather statistics during query execution, to detect predicates or combinations of predicates that induce large cardinality estimation errors, and, when possible, adjust future estimates, to get more reliable cost estimates for query execution plans.

Experiments were made with PostgreSQL, as a C extension and a patch for features that were not doable as an extension, along with some Python scripts.

The Ph.D. could not be finished due to unforeseen circumstances that delayed the project enough to run out of funding.

Grenoble, France 🇫🇷

Research internship in machine learning

National Institute of Informatics of Japan

2015

6-months research internship in artificial intelligence, deep learning, data mining

Analysis of the behaviour of drivers to automatically generate driving rules to be followed by autonomous vehicles, using dimensionality reduction (stacked denoising autoencoders) and cluster analysis (k-means).

Tokyo, Japan 🇯🇵

Google Summer of Code with a PostgreSQL library

Google Summer of Code

Summer 2014

The Google Summer of Code is a program led by Google, which consists in paying students to work on Open Source projects.

During this project, I implemented the k-medoids algorithm in MADlib, a machine-learning library for PostgreSQL.

Intern software developer

Airbus

Summer 2012

Development of a KPI generation application for an aircraft quality service

During this internship, I developped an application for the team in charge of the Configuration Control of the A330 aircraft. The purpose of this team is to produce the Aircraft Inspection Report (AIR) of the planes from the factory, which are documents describing in great detail all the components and all the modifications made on a plane.

The goal of this internship was to figure out the Key Performance Indicators of the team, and to generate them automatically. All the computers of the team using Windows, I developed an Access application to populate, store and process the data, and this application generates Excel charts.

I also proposed a data model coherent with their activity; before my internship, the data was input by everyone in a different way, not normalised, or some fields were left blank. The data model I provided, as well as the application exploiting it, allowed them to solve these three problems.

Toulouse, France 🇫🇷

Summer jobs

2009 - 2013

I have worked at a number of summer jobs which had me execute various tasks, among them:

farm work
apprentice mechanic at a construction machine fixing company
line work in a cannery
garbage collection
loading and unloading of trucks
house construction (drywall, electricity, wooden flooring, tiling)
design, prototyping and realization of a metal and bamboo staircase

Bergerac, France 🇫🇷

Education

Master's degree in Computer Science

ENSEEIHT

2012 - 2015

French engineering degree in Computer Science, in a grande école (engineering school).

I did one exchange semester in Tomsk Polytechnic University, and an internship at the National Institute of Informatics of Japan.

Toulouse, France 🇫🇷 — Tomsk, Russia 🇷🇺 — Tokyo, Japan 🇯🇵

Computer Science HND

IUT Informatique de Bordeaux

2010 - 2012

2-year computer science degree with a focus on practical courses

Bordeaux, France 🇫🇷

Skills

You can also take a look at my Github profile.

Programming languages

Python: proficient. Used at Xeneta, during my studies, and for personal projects
My most significant open-source project in Python is an equivalent to virtualenv for PostgreSQL in Python, available here
Notable libs: Flask, Pandas, Seaborn, SQLAlchemy, Pytest
SQL: proficient with PostgreSQL’s dialect. Used a lot during my PhD and at Xeneta
C: intermediate. Wrote an extension to PostgreSQL in C for my PhD, dug a lot in PostgreSQL's source code to understand it
Rust: beginner, but very interested. Go-to language for personal projects
Notable libs: Axum, Yew
Bash: familiar
C++, Java, CamL: beginner. Used regularly during my studies.Made a LOGO interpreter as a uni project, available here

Infrastructure and Operations

PostgreSQL: good mastery. Studied its internals extensively for my PhD, particularly the query planner. Organized upgrade from 9.6 to 13 at Xeneta
Docker used on my personal servers, orchestrated with docker-compose; used a lot at Xeneta to run our services in ECS, Batch or Lambda
Terraform: used to orchestrate the infra at Xeneta
AWS: used a couple of services, mainly Lambda and Batch
CI/CD: Gitlab CI used for linting, testing and deploying my personal projects, set up some Github actions at Xeneta

Others

LaTeX: experienced. Lots of project reports and thesis made with it
Excel: basic usage. Occasionally used with Power Query for data cleaning

Languages

French: mother tongue
English: fluent. Maximum score (990/990) achieved at TOEIC
Spanish: intermediate. Good grades at the 'A' levels, studied for 5 years
Norwegian: beginner. Currently working in Oslo, Norway