Professional Experience

A journey through my career in data analytics, engineering, and machine learning

Work Experience

Analytics Engineer

Adikteev | Paris, France
June 2024 - June 2025

Adikteev provides programmatic solutions to help mobile apps acquire and re-engage users. The company processes billions of ad impressions monthly, serving clients across gaming, non-gaming sectors.

Main focus: Resolved internal and external technical requests while building and maintaining ELT pipelines and internal tooling.

As Analytics Engineer (CDD - December 2024 to June 2025):

  • Built and owned an Airflow ingest pipeline to pull client ad-event files from Dropbox, validate and normalise records, and deliver processed datasets to internal Google Sheets for reporting and analytics.
  • Consolidated three fragmented analyst workflows into a single Streamlit app, enabling analysts to retrieve data and run creative-spending analyses directly in-app, reducing manual handoffs and speeding campaign decisions.
  • Served as L2 technical contact for internal teams and clients on data, tracking and operational issues, diagnosing root causes, coordinating fixes, and delivering clear, non-technical explanations.
  • Monitored and debugged Airflow jobs and Trino queries, investigating pipeline failures and query issues and applying durable fixes to restore reporting availability.
  • Analyzed large-scale adtech datasets (impressions, bids, events) to detect anomalies and support investigations related to tracking or potential fraud.

As Analytics Engineer Intern (June 2024 to December 2024):

  • Implemented and maintained audience-segmentation pipelines (SQL, Airflow) used by the Revenue team for campaign targeting and spend allocation.
  • Designed and maintained ELT pipelines (SQL, Airflow) to produce analytics-ready datasets powering recurring reports and ad-hoc analyses.
  • Built Python automation tools to remove repetitive tasks, accelerate scheduled reporting, and enable analyst self-service exploration.
  • Developed and owned a Python on-call automation (Slack + HR roster API) to automate rotation assignments and streamline schedule management.
  • Diagnosed tracking-link and attribution discrepancies with MMP partners (e.g. Singular, Adjust) and coordinated investigations and fixes with product and partners.
  • Conducted a Pandas → Polars benchmark to evaluate ingestion and query performance and summarised practical recommendations for the data team.

Associate Data Analyst

Viettel Group | Hanoi, Vietnam
April 2022 - June 2022

Viettel Group is a state-owned Vietnamese multinational company operating across telecommunications, digital services, defense, and technology.

Main focus: Provided data analytics support to Viettel's telecom business unit.
  • Assisted the synthesis of reports evaluating the effectiveness of Data Science applications compared to traditional telecommunication campaigns.
  • Utilised SQL for the analysis of telecommunications customer usage data.
  • Researched tree-based Machine Learning algorithms for customer churn predictions.

Education

Master of Science in Computer Science

EPITA - École pour l'informatique et les techniques avancées | Paris, France
March 2023 - December 2024

Specialization: Data Science & Analytics
GPA: 16.11/20

Key Coursework:
Machine Learning Fundamentals, MLOps, NLP, Computer Vision, Statistical & Data Analysis, Data Visualization.

Highlights:

  • Capstone project: Researched and productionized state-of-the-art deep learning models for telecom churn prediction using MLOps best practices.
  • Group project: Built an end-to-end MLOps platform for bank customer churn: data pipelines, model training & validation, deployment and monitoring.

Bachelor of Science in Cyber Security

USTH - University of Science and Technology of Hanoi | Hanoi, Vietnam
August 201 - November 2021

Major: Cyber Security
GPA: 15.32

Recognition:
Graduated with Distinction.
Merit Scholarship recipient.
Recognized for Active student involvement.

Highlights:

  • Graduated with Distinction — selected among top-performing graduates and honored at the faculty graduation ceremony.
  • Thesis: "An Application of OSINT-Based Cyber Threat Intelligence in Vietnamese Corporations".
  • Merit scholarship - awarded a half-tuition scholarship for one semester based on academic performance.
  • Active student recognition - acknowledged for sustained involvement in student initiatives and campus activities.

Certifications & Training

Data Analytics

  • Google Data Analytics Professional Certificate
    Coursera
  • Data Analyst Associate
    DataCamp
  • Data Analyst with R
    DataCamp

Data Science

  • Data Scientist Professional
    DataCamp
  • Data Scientist Associate
    DataCamp
  • Learn R Course
    Codecademy

Technical Skills

Languages

  • Python
  • SQL
  • JavaScript
  • R
  • C/C++
  • Java
  • HTML/CSS

Frameworks & Tools

  • Airflow
  • FastAPI
  • Docker
  • MLFlow
  • Scikit-learn
  • Pandas/Polars
  • Grafana
  • Streamlit
  • XGBoost/Catboost/LightGBM

Data & Cloud

  • AWS
  • GCP
  • PostgreSQL
  • MongoDB
  • Redshift
  • Trino
  • Apache Hive
  • Snowflake