Data Analyst · Analytics Engineer · EFREI Paris

Mathieu
Alassoeur.
Reliable data systems.

I turn messy data into reliable KPIs, dashboards, and decision-ready systems — with a strong focus on data quality, maintainability, and real execution.

Looking for a Data Analyst / BI / Analytics Engineering opportunity.
BI, ML, Game Dev, Web

Data and BI are the core of my positioning. Machine learning extends that foundation, and web/game projects remain supporting proof that I can design, structure, and ship complete systems.

BI
Dashboards & KPI logic
Reporting, metrics structuring, data cleaning, and decision-support thinking.
Data
Applied modeling
Prediction workflows, feature engineering, evaluation logic, and iteration.
ML
Architecture through play
State management, systems thinking, modular design, and polish.
Eng
Front-end delivery
Interfaces, structure, usability, and presentable public-facing work.
GitHub snapshot
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Repositories pushed in the last 180 days.
Flagship engineering repo
github-portfolio-auditor
Python · Streamlit · GitHub API · scoring logic
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01 — Selected Projects

Projects that show how I think,
not just what I can display.

Click any project to open a detailed case view with context, architecture, rationale, constraints, and implementation decisions.

02 — Experience

Real work matters,
especially when the data is messy.

Academic projects matter, but stronger credibility comes from handling imperfect data, reporting constraints, and business-facing delivery.

Recent experience
Data Analyst Intern
International School of Management — Germany

I worked on data quality, structuring, and analytical usability across institutional data. The work was less about theoretical dashboards and more about making inconsistent data genuinely usable for reporting and decision-making.

    Current education
    Engineering Student — 4th Year
    EFREI Paris · BI / analytics-oriented profile

    My academic path became much more valuable once I started turning school work into stronger deliverables: better project structure, clearer documentation, more explicit technical tradeoffs, and more serious public-facing repositories.

      03 — Technical Stack

      I prefer clear stacks,
      clean workflows, and explicit tradeoffs.

      I do not like fake percentage bars. I would rather show what I actually use, what I build with it, and what I optimize for.

      Core stack

      Data analysis
      Analytics / BI
      Project engineering
      Working knowledge

      What I optimize for

        04 — About

        A data profile,
        with a builder’s mindset.

        I like elegant interfaces, but I care more about whether the underlying project is actually sound.

        Contact

        I am currently looking for an opportunity in Data Analysis, BI, or Analytics Engineering.

        05 — Lab

        A project can also be
        experienced directly.

        This final section is prepared to embed a playable JavaScript project. For now, it is wired for Morpion Ultime so the portfolio can end with something interactive instead of a static card only.

        Morpion Ultime · JavaScript AI project

        Ultimate Tic-Tac-Toe with AI

        This project matters because it is not just another toy game: it combines game rules, search algorithms, decision logic, and a UI layer in one coherent interactive system.

        Lab demo
        Live project embedded below for direct interaction.
        https://matalass.github.io/morpion-ultime/
        Open full page
        Embed ready, deployment missing

        GitHub repository pages cannot be embedded as a playable game. Deploy the project on GitHub Pages, Vercel, or Netlify, then set MORPION_EMBED_URL in the script to show the live game here.

        Inspect the repository →