Publication
Smarter Ad Spending: 5 Marketing Analytics Strategies to Optimize Your Budget
https://www.toptal.com/marketing/digital/advertising-budget-guide
Khalil is available for hire
Hire KhalilKhalil Kafrouni
Verified Expert in Engineering
Data Scientist and Developer
Nice, France
Toptal member since September 16, 2020
Bio
Khalil is a data scientist and AI team lead with 7 years of experience and a keen eye for finding hidden patterns in data. He's built and sold an AI startup that brings data analysis to the fingertips of eCommerce stores. Khalil has managed and architected the analytics and reporting infrastructure for America's biggest healthcare staffing company, serving over 2,000 hospitals, and has led data science teams and ML projects across many companies, from small businesses to Fortune 500 firms.
Portfolio
SKEMA Business School
Algorithmic Trading, Option Pricing, Quantitative Finance, Time Series Analysis
FleetRover Inc
Data Science, Python, Machine Learning, Deep Learning, Predictive Modeling...
FCP Euro LLC
Time Series Forecasting, Recurring Revenue Modeling, Statistical Modeling
Experience
- Python - 7 years
- Mathematical Modeling - 6 years
- Data Science - 6 years
- Business Intelligence (BI) - 5 years
- SQL - 4 years
- Spark - 4 years
- eCommerce - 3 years
- Marketing Analytics - 3 years
Preferred Environment
Visual Studio Code (VS Code), Tableau, Jupyter Notebook, Jupyter
The most amazing...
...thing I've built was an AI startup that enables Shopify store owners to have a data analyst at the ready round the clock to answer their difficult questions.
Work Experience
Appointed Lecturer, Python for Quantitative Finance
2026 - PRESENT
SKEMA Business School
- Appointed to teach the Python for Quantitative Finance course at SKEMA Business School's master's program in financial markets and investments (FMI) starting Fall 2026.
- Developed the course curriculum to cover data preprocessing with Pandas, time series analysis fundamentals, working with financial databases, building MonteCarlo simulations, and developing backtests.
- Contributed to this course that culminates in a project where the students build an exotic options pricer.
Technologies: Algorithmic Trading, Option Pricing, Quantitative Finance, Time Series Analysis
Sr. Data Scientist
2025 - 2025
FleetRover Inc
- Built a freight rate forecasting model that predicted short-term price movements at the lane level, enabling carriers to optimize bid timing and capture favorable rates, directly improving margins and overall revenue realization across the platform.
- Developed a data-driven price signal framework that classified market conditions as favorable or unfavorable for immediate bidding, reducing carrier exposure to adverse rate fluctuations and improving cost predictability in a volatile freight market.
- Quantified and modeled supply/demand imbalances in freight markets to generate forward-looking rate expectations, providing a systematic approach to pricing decisions.
Technologies: Data Science, Python, Machine Learning, Deep Learning, Predictive Modeling, Statistical Modeling, Time Series Analysis, Forecasting, Pandas, NumPy, Scikit-learn, TensorFlow
Sr. Data Scientist, Demand and Revenue Forecasting
2025 - 2025
FCP Euro LLC
- Developed and maintained demand forecasting models for an automotive eCommerce platform, leveraging machine learning techniques to predict part-level sales across thousands of SKUs, improving inventory planning accuracy, and reducing stockouts.
- Built revenue forecasting pipelines that integrated historical sales data, seasonal trends, and market signals to generate actionable forward-looking projections, enabling data-driven decision-making for finance and operations stakeholders.
- Collaborated cross-functionally with merchandising, supply chain, and finance teams to translate complex model outputs into clear business insights, driving alignment on inventory investment strategies and revenue targets.
Technologies: Time Series Forecasting, Recurring Revenue Modeling, Statistical Modeling
Founder | Developer
2024 - 2024
Spikie AI
- Built an AI data analyst for Shopify stores. It allows store owners to answer complex data analysis questions in seconds.
- Architected the infrastructure that pulls data from Shopify into Big Query and added the ability to analyze it and generate reports.
- Exited the startup after selling it at the pre-revenue stage for an eCommerce marketing service provider.
Technologies: Entrepreneurship, Development, Artificial Intelligence (AI), Large Language Models (LLMs), Google Cloud Platform (GCP), BigQuery, Shopify, Cloud Run, LangChain, AI Agents, AI Chatbots, Chatbots, OpenAI API, Multimodal Models, APIs, Data Engineering, JSON, Data Analysis, Google BigQuery, Data Analysis, Marketing Analytics, SQL
Manager, Reporting and Analytics
2022 - 2024
AMN Healthcare - Main
- Led the design, development, and management of all user-facing dashboards for the biggest healthcare staffing company in the US, serving 12,000 hospitals.
- Built and optimized the ETL that fed data into the dashboards, improving major speed and data accuracy.
- Managed a user base of over 12,000 hospitals successfully, providing support to ensure efficient utilization of the reporting tools.
Technologies: Sisense, Data Science, Data Reporting, BI Reporting, Data Visualization, Data Analytics, PostgreSQL, SQL, ETL, Dashboards, Reports, Data Pipelines, Metrics, CSV, Mathematics, APIs, Data Engineering, JSON, Data Analysis, Dashboards, Data Analysis, Microsoft Power BI, SQL
Senior Data Scientist
2019 - 2023
The Relationship Corp
- Reduced the company's marketing costs by 30% by analyzing the customer lifetime value and using probabilistic modeling to predict which marketing campaigns would not break even.
- Increased the return on investment by 13% by examining patterns in user data and presenting new payment plans that increased the conversion and retention rate.
- Eliminated more than 20,000 fraudulent profiles after running statistical analyses on their behavioral data and building a fraud detection framework.
Technologies: SQL, Marketing Analytics, Reporting, SaaS, eCommerce, Business Intelligence (BI), Mathematical Modeling, Predictive Analytics, Data Science, Customer Lifetime Value (CLV), Revenue Analysis, Fraud Investigation, Product Analytics, Sisense, Python, Statistics, Numerical Analysis, ETL, Pandas, NumPy, Spark, Dashboards, Reports, Data Pipelines, Metrics, CSV, MySQL, Digital Marketing, Bayesian Statistics, Exploratory Data Analysis, Causal Inference, AI Agents, Mathematics, APIs, Apache Airflow, Data Engineering, JSON, Data Analysis, Dashboards, Data Analysis, Marketing Analytics, SQL
Data Scientist
2021 - 2022
FantasySpin
- Engineered a robust tournament reward algorithm, balancing the allocation of coins to winners to ensure a sustainable gaming/gambling company profit margin.
- Leveraged analytical skills to assess and fine-tune the algorithm, ensuring a strategic alignment between company profits and user satisfaction, contributing to the overall success of the gaming/gambling platform.
- Implemented various optimizations to the computations in the background so that they run seamlessly and have no adverse effect on the user experience.
Technologies: Python, Pandas, Scala, Reports, Data Pipelines, Metrics, CSV, MySQL, Digital Marketing, Bayesian Statistics, Exploratory Data Analysis, Causal Inference, Mathematics, APIs, Apache Airflow, Data Engineering, JSON, Data Analysis, Dashboards, Data Analysis, Marketing Analytics, SQL
Data Reporting Expert (Sisense)
2021 - 2022
AMN Healthcare
- Developed customer-facing analytics dashboards that enabled healthcare facilities to monitor their roster of medical providers, keep an eye on any soon-to-expire documents, and keep track of insurance requirements.
- Built data models that powered the business intelligence side of the operations.
- Administered the company's BI implementation in Sisense.
Technologies: Sisense, PostgreSQL, SQL, ETL, Reporting, Pandas, Dashboards, Data Pipelines, Metrics, CSV, APIs, Data Engineering, JSON, Data Analysis, Dashboards, Data Analysis, Microsoft Power BI, SQL
Data Scientist
2020 - 2022
AddShoppers
- Developed statistical models to identify underperforming email campaigns and eliminate them, allowing the company to achieve a 10% reduction in email volume without an impact on revenue.
- Built reporting dashboards to monitor the company's KPIs on a daily basis along with the SQL data models that powered them.
- Developed statistical simulations to test the company's entity resolution algorithm.
Technologies: Data Science, Machine Learning, Python, Data Visualization, eCommerce, Reporting, Statistics, Metabase, BigQuery, Pandas, NumPy, Reports, Metrics, CSV, Excel 365, Digital Marketing, Bayesian Statistics, Exploratory Data Analysis, Causal Inference, Mathematics, APIs, Data Engineering, JSON, Data Analysis, Microsoft Power BI, Dashboards, Data Analysis, Marketing Analytics, SQL
Founder and Developer
2020 - 2021
Robin AI
- Built an AI app that enables eCommerce stores to bring back their customers who are at risk of churning by targeting them with a unique promotion at just the right time.
- Developed the back and front end from end to end and managed the hosting and architecture of the project.
- Had a 5% bringback rate on the churn prediction model.
Technologies: Python, Django, Artificial Intelligence (AI), Machine Learning, Email Marketing, eCommerce, Mathematics, APIs, Data Engineering, JSON, Data Analysis, Data Analysis, Marketing Analytics, SQL
Marketing Analyst
2017 - 2017
Roadie Music
- Increased customer outreach and reduced marketing costs by analyzing the marketing data set and identifying underperforming channels.
- Reduced marketing inefficiency by analyzing the reach of marketing blog articles based on their time of publication and focusing efforts on the most effective times.
- Recommended a more granular market segmentation after analyzing the users' app behavior and finding differences between unexpected demographics.
Technologies: Marketing Analytics, Reporting, eCommerce, Business Intelligence (BI), Mathematical Modeling, Data Science, Google Analytics, Presentations, Statistics, MATLAB, Microsoft Excel, Pandas, Dashboards, Reports, Metrics, Excel 365, Digital Marketing, Exploratory Data Analysis, APIs, Data Engineering, Data Analysis, Microsoft Power BI, Dashboards, Data Analysis, Marketing Analytics, Microsoft Power BI
Experience
Algorithmic Trading
Researched and deployed several successful trading strategies. The strategies employ both momentum and mean-reversion methods over a wide array of financial instruments, including stocks, futures, and cryptocurrencies.
Lifetime Value Prediction for a Subscription-based Business
A Python-based model that predicts the future (up to 16 months) recurring revenue of a monthly cohort of users who have different payment plans and pricing schemes. This implementation was used to judge different marketing campaigns and get an updated estimate of the lifetime value of the users on the website.
Customer Conversion Prediction for Online Freemium-model Businesses
An all-inclusive model that gathers all the on-site activity for each new user (signed up in the past 24 to 48 hours) and calculates the probability that they would end up purchasing a premium membership on the website.
This model is used to identify the users who are most likely to transact, so more incentives can be directed toward them, and those who are least likely to transact, so marketing efforts can be directed toward other users who might end up converting.
This model is used to identify the users who are most likely to transact, so more incentives can be directed toward them, and those who are least likely to transact, so marketing efforts can be directed toward other users who might end up converting.
Email Volume Optimizer
I worked with a business that sends marketing emails on behalf of its B2B clients. I developed a forecasting model that allows them to anticipate the volume of emails each of their clients will require and relates it to the profitability of each client. This enabled them to optimize their sending quota and maintain a healthy spam score without losing revenue.
Predicting Optimal Bid Timing
Developed and implemented a predictive machine learning model using Python in AWS Glue to advise truck drivers on optimal bid timing for freight lanes based on real-time Load-to-Truck ratio data (scraped via Firecrawl API) and freight volume analysis (FAF data). It incorporates a statistical simulation to estimate potential revenue uplift and apply dynamic thresholds for improved bidding strategy.
Education
2025 - 2026
Master's Degree in Financial Markets and Investments
SKEMA Business School - France
2014 - 2018
Bachelor of Engineering Degree in Mechanical Engineering
American University of Beirut - Beirut, Lebanon
Skills
Libraries/APIs
NumPy, Pandas, OpenAI API, Scikit-learn, TensorFlow
Tools
Jupyter, Tableau, Microsoft Excel, Microsoft Power BI, MATLAB, Mathematica, Sisense, Google Analytics, BigQuery, Apache Airflow
Languages
SQL, Python, Snowflake, C++, Scala
Paradigms
Business Intelligence (BI), ETL, Quantitative Research
Platforms
Jupyter Notebook, Visual Studio Code (VS Code), Google Cloud Platform (GCP), Shopify, Cloud Run
Storage
Data Pipelines, MySQL, JSON, PostgreSQL
Frameworks
Spark, Django
Other
Numerical Analysis, Mathematical Modeling, Reporting, Marketing Analytics, Product Analytics, Presentations, SaaS, Recurring Revenue Modeling, Predictive Modeling, Predictive Analytics, Machine Learning, Data Science, Dashboards, eCommerce, Data Reporting, BI Reporting, Reports, Metrics, CSV, Digital Marketing, Exploratory Data Analysis, Artificial Intelligence (AI), LangChain, AI Agents, AI Chatbots, Chatbots, Mathematics, APIs, Data Engineering, Data Analysis, Google BigQuery, Dashboards, Data Analysis, Marketing Analytics, SQL, Statistics, Revenue Analysis, Web Scraping, Probability Theory, Customer Lifetime Value (CLV), A/B Testing, Excel 365, Bayesian Statistics, Causal Inference, Multimodal Models, Microsoft Power BI, Fraud Investigation, Data Aggregation, Market Research, Decision Trees, Data Visualization, Metabase, Data Analytics, Quantitative Finance, Stock Trading, Financial Risk Management, Finance, Finance APIs, Trading, Entrepreneurship, Development, Large Language Models (LLMs), Email Marketing, Deep Learning, Statistical Modeling, Time Series Analysis, Forecasting, Algorithmic Trading, Option Pricing, Time Series Forecasting
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