Data Analyst · Business Intelligence

Eya
Ben Salem

From raw data to the decision.

I build reliable, automated reportings, dashboards and decision pipelines — from data collection to the business decision.

Available for a permanent role — September 2026
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Online resume ↗ · ATS version (text)

Illustration of Eya Ben Salem, Data Analyst, presenting a KPI dashboard
// data analyst at workFIG. 01
÷2reporting time at Veolia
~6 hper week saved through automation
5business teams equipped with data
15+reportings migrated to Looker Studio

Trusted by

Veolia
Alten
Technozor
ETAP
01 — About

From raw data to decisions

Data modelling, data quality, reporting automation and data visualization at the service of business teams.

A computer engineer specialised in Business Intelligence and currently in a Big Data & AI Master's on a work-study contract at Veolia, I will be available for a permanent role from September 2026.

I love turning multi-source data into simple, automated and decision-oriented solutions. My playground: data modelling, data quality, reporting automation and data visualization.

Throughout my work-study and internships, I have designed end-to-end ETL pipelines, interactive dashboards and decision-support architectures, in France and in Tunisia.

Education
Master's in Big Data & AI · Engineering degree
Experience
~2 yrs of Data Analyst work-study
Based in
Rennes — open to relocation across France
Languages
Arabic · French · English
Certifications
Google Data Analytics · Google BI · Databricks
Availability
Permanent role — September 2026
02 — Skills

My data toolbox

01

Data Analysis & BI

  • SQL
  • Power BI
  • Looker Studio
  • Tableau
  • Excel
  • MSBI
  • DAX
  • KPI
  • Data Viz
02

Data Engineering & Cloud

  • Python
  • Talend
  • Airflow
  • Spark
  • Kafka
  • Google Cloud
  • BigQuery
  • Microsoft Fabric
  • ETL
03

Databases

  • PostgreSQL
  • MySQL
  • SQL Server
  • MongoDB
  • SQLite
04

Machine Learning & AI

  • NLP
  • Supervised models
  • LLM
  • Pandas
05

Tools & methods

  • GitHub
  • Docker
  • Streamlit
  • Apps Script
  • Agile
06

Certifications

  • Google Data Analytics
  • Google BI
  • Databricks Lakehouse
03 — Experience

Experience & education

Sept. 2024 — Sept. 2026Work-study

Data Analyst — Veolia

Rennes, France

Multi-source data pipelines on Google Cloud / BigQuery feeding 5 business teams, migration of around fifteen Excel reportings to Looker Studio (reporting time halved), automation via Apps Script (~6 hrs/week saved) and data quality checks.

  • BigQuery
  • Looker Studio
  • Power BI
  • SQL
  • Python
  • Apps Script
Feb. 2024 — Aug. 2024End-of-studies internship

Business Analyst Data / PMO — Alten

Rennes, France

Business requirements gathering, coordination in an Agile environment, reporting & tracking tools (Power BI, Excel) and automation (VBA) to steer ~10 labelling campaigns (manual processing time cut by ~30%).

  • Power BI
  • Python
  • Excel/VBA
  • DAX
  • Agile
Aug. 2023 — Oct. 2023Internship

Data Engineer — Technozor

Remote

Built ETL pipelines (APIs, databases, files) consolidating 5+ sources, Data Warehouse modelling, identification of 3 at-risk customer segments and a monitoring dashboard.

  • Python
  • Talend
  • PostgreSQL
  • Power BI
  • Flask
June 2023 — July 2023Internship

Machine Learning Engineer — ItServ

Tunis, Tunisia

Text-analysis models (NLP, regular expressions) to extract information from a corpus of ~5,000 documents, visualisation and reporting to business teams.

  • Python
  • NLP
  • Pandas
  • Regex
June 2022 — July 2022Internship

BI Analyst — ETAP

Tunis, Tunisia

Defined ~15 HR KPIs, designed an ETL pipeline and OLAP cubes, dashboards and reporting with the Microsoft BI suite.

  • SSIS
  • SSAS
  • SSRS
  • OLAP
2024 — 2026Education

Master's in Big Data & AI — Sup de Vinci

Rennes · work-study at Veolia
2019 — 2024Education

Computer Science Engineering degree — ESPRIT

Tunis, Tunisia

Business Intelligence / ERP major — Highest Honours (with the jury's congratulations), top of the class. Exchange semester in Data Intelligence at ESEO (Paris-Vélizy).

04 — Projects

Data projects & architectures

End-to-end pipelines: ingestion, distributed processing, BI and machine learning.

Air-traffic pipeline architecture
Air-traffic dashboard NiFi pipeline
01

Distributed ETL pipeline — Air traffic

Big Data

Big Data processing chain for real-time air-traffic analysis. Data from the OpenAIP API is ingested and processed continuously, then surfaced on a map-based dashboard.

OpenAIP→NiFi→Kafka→Spark→PostgreSQL→Power BI
Real-time streaming · distributed ETLCode ↗
BooksData pipeline architecture
BooksData dashboard Titles WordCloud
02

BooksData — Big Data books pipeline

Data Eng · ML

End-to-end data pipeline on a book catalogue: ingestion, cleaning, statistical analysis and a rating-prediction model. Results are exposed through a REST API and an interactive dashboard.

Ingestion→Cleaning→Analysis→FastAPI→Streamlit→ML
FastAPI · Streamlit · MongoDB · MLCode ↗
Trading platform architecture
Trading interface
03

Intelligent trading decision system

ML · RL

Trading decision system on the GBP/USD pair, combining supervised models and reinforcement learning (PPO). The models are served through an API and driven from an interface, the whole stack containerised.

Feature eng.→ML + PPO→FastAPI→Streamlit→Docker
Reinforcement Learning · FastAPI · DockerCode ↗
Energy & Weather architecture
Energy & Weather dashboard Brittany region map
04

Energy & Weather analysis

Data Analysis

Analysis of how weather conditions influence energy consumption in Brittany, from data collected in real time. Trends and correlations explored with MongoDB and ElasticSearch.

Real-time APIs→MongoDB→ElasticSearch→Insights
MongoDB · ElasticSearch · real-timeCode ↗
Energy BI platform architecture
Power BI dashboard 1 Power BI dashboard 2 Power BI dashboard 3
05

BI platform — Sustainable energy in France

Business Intelligence

National decision-support platform covering consumption, renewable energy, carbon emissions and weather. Data consolidated from RTE, DataGouv and Kaggle, modelled in a star schema and surfaced in Power BI.

RTE · DataGouv · Kaggle→Talend→Star schema→Power BI
Talend · decision modelling · Power BIAcademic project
LinkedIn Profiling DataRaise architecture
Model comparison Follower forecast
06

LinkedIn Profiling — DataRaise

BI · ML

Final-year project: analysis and forecasting of DataRaise's LinkedIn performance. Full data architecture (ETL, warehouse, BI) and follower-forecasting models (SARIMAX, regressions; R² = 0.54).

PDF/TXT/JSON→Talend→PostgreSQL→Python ML→Flask→Power BI
Talend · PostgreSQL · Python · Flask · Power BIESPRIT capstone
05 — What I do

My services

01

Data Analysis & Visualisation

I turn complex data into clear, interactive dashboards that make performance easier to understand, monitor and act on.

02

Business Intelligence & Decision Support

I design complete BI solutions: data collection, modelling and analysis using tools such as Power BI, Tableau, Looker Studio and BigQuery.

03

Automation & Data Pipelines

I build reliable, automated ETL pipelines to centralise data, improve its quality and reduce repetitive manual work.

04

Data & Advanced Analytics

I use Python and machine learning to run predictive analyses, detect trends and turn data into business value.

06 — Contact

Let's work
together.

Hiring a Data Analyst / BI on a permanent contract from September 2026? Let's talk.

Available — Sept. 2026 Rennes · Open to relocation
Email — the simplest way
eyabensalem0902@gmail.com
LinkedInin/eya-bensalem GitHubgithub.com/eyabensalem