●Data Consultant • Paris & Montreal

Helping companies reduce data errors and improve efficiency through pragmatic data platforms

Data Consultant who reduces errors significantly, improves efficiency measurably, and builds platforms that enable critical business decisions. Taking on new projects - book a free strategy call to discuss yours.

30% fewer errors

10x faster insights

Zero downtime (14M+ users)

4 countries, 3 continents

Fallou combines technical competence, strategic vision, and collaborative leadership - a major asset for any large-scale project.

Sara Jorio, Senior Director - Conversational Ecosystem Transformation, National Bank of Canada

Trusted By

Proven results across enterprise organizations

BNC

Banking

Montreal

ORANGE

Telecommunications

Abidjan,
Dakar

ONEPOINT

Consulting

Montreal,
Lyon

SOPRA STERIA

Technology

Paris

ATOS

Technology

Dakar,
Grenoble

Real Projects, Real Results

Concrete proof I can reduce errors and improve efficiency for your business

Technical innovation combined with measurable business impact

Sopra Steria

Technology & Consulting

Transverse Data Architect - DCoE

Starting 11/2025 (Upcoming)

Upcoming role starting November 2025

Will architect enterprise data solutions across 8+ industries (Banking, Insurance, Telecom, Media, Gaming, etc.), supporting teams from prospecting to delivery with focus on data governance, quality, and AI industrialization.

Will architect enterprise data solutions across 8+ industries, supporting teams from prospecting to delivery. Focus on data governance, quality, and AI industrialization.

Onepoint

Consulting & Technology

Expert Data Consultant

09/2024 - 10/2025

Delivered high client satisfaction across enterprise clients by improving platform performance by 40%, reducing time to insight from weeks to days, identifying cost-saving opportunities through technical audits, and establishing data governance frameworks that ensure long-term reliability.

Helped enterprise clients fix data platform problems through technical audits, modern architecture design, and data governance frameworks. Improved platform performance by 40%, reduced time to insight from weeks to days, and achieved high client satisfaction with measurable results.

40%Platform Performance

Weeks → DaysTime To Insight

National Bank of Canada

Banking & Financial Services

Lead Data Engineer

11/2021 - 04/2025

Delivered significant annual value through data quality improvements, 30% error reduction, and a scalable analytical platform powering critical business decisions and production AI models across Canada's 6th largest bank. The data quality framework I developed was adopted bank-wide by multiple teams.

Built a modern data warehouse enabling critical business decisions across Canada's 6th largest bank. The platform powers Marketing strategy, AI-powered real-time fraud detection, executive reporting, and serves as the data foundation for production AI models. Successfully migrated from Azure to AWS with zero downtime, while reducing errors by 30% through a data quality framework adopted bank-wide.

30%Error Reduction

25%Efficiency Improvement

I had the opportunity to collaborate with Fallou during his time at the Bank, and I want to highlight his technical expertise and understanding of bus...

Sara Jorio, Senior Director - Conversational Ecosystem Transformation, National Bank of Canada

Orange Côte d'Ivoire

Telecommunications

Lead Data Engineer

09/2020 - 08/2021

Achieved 100% success rate on zero-downtime migration for critical data workflows serving millions of customers, while improving team productivity by 20% through custom Spark library development.

Led zero-downtime migration of critical data workflows serving millions of customers. Modernized legacy stack and developed productivity tools that improved team efficiency by 20%.

20%Productivity Improvement

100%Migration Success

Orange Sénégal

Telecommunications

Senior Data Engineer & Data Scientist

06/2019 - 08/2020

Improved customer satisfaction by 15% through ML-powered QoE prediction and automated processes that reduced analytics processing time by 30%, enabling proactive customer experience management.

Developed ML models for customer experience management and QoE prediction. Improved customer satisfaction by 15% and reduced analytics processing time by 30% through automation.

15%Customer Satisfaction

30%Processing Efficiency

Orange Sénégal

Telecommunications

Data Engineer & Data Scientist

10/2018 - 04/2019

Achieved 3x platform scalability with micro-services architecture supporting high-volume data processing, enabling new revenue streams through location-based insights and population movement prediction.

Built micro-services data monetization platform achieving 3x scalability. Enabled new revenue streams through location-based insights and population movement prediction from CDR data.

300%Platform Scalability

25%Data Monetization

Certifications & Credentials

Professional certifications validating technical expertise and commitment to continuous learning.

Azure Data Engineer AssociateMicrosoft

Professional Data EngineerGoogle Cloud

3x Databricks CertifiedDatabricks

View details

Technologies & Tools

Expertise in Data Warehouses, Data Lakes, Data Lakehouses, and Data Modeling using modern cloud platforms and data technologies

Cloud Platforms

Azure

AWS

GCP

Data Platforms

Databricks

Snowflake

Apache Spark

Delta Lake

Languages

Python

SQL

Scala

Java

Tools & DevOps

Terraform

Docker

Kubernetes

GitHub Actions

Apache Airflow

Frequently Asked Questions

Common questions about working with me

I'm flexible. I offer shorter 2-4 week assessments and 1-2 month quick wins for urgent issues. We can start small (assess your data architecture and identify top 3 cost drivers) and scale up based on results. Many clients start with a 4-week assessment and then extend to a full engagement once they see the ROI.

Absolutely. I integrate seamlessly with existing teams. In fact, I prefer working alongside your engineers because they know your systems best. I focus on knowledge transfer, so your team can maintain and extend the solutions after I leave. At National Bank, I led a team of 7 engineers, and the solutions are still running successfully today.

I offer focused 1-2 week consulting sprints for specific problems like 'fix our data quality pipeline' or 'optimize our Snowflake costs.' These are perfect for urgent issues. However, data architecture improvements typically deliver the best ROI over 2-6 months because we can implement comprehensive solutions, not just quick fixes.

I start every project by identifying measurable metrics: error reduction targets, cost savings goals, efficiency improvements. At National Bank, I delivered significant annual value by tracking specific KPIs (30% error reduction, 25% efficiency gain, 40% faster testing). You'll get weekly updates with these metrics so you see progress in real-time, not just at the end.

Both. I'm based in Paris and Montreal, but I work remotely with clients worldwide (Europe, North America). For critical phases or team workshops, I can travel on-site. Most of my work is remote, which keeps costs down and allows for flexible scheduling across time zones.

Three things: (1) I focus on ROI, not just technical implementation. Every solution I build directly ties to cost savings or quality improvements you can measure. (2) I move fast—I start within 1-2 weeks and deliver results quickly. (3) I build solutions your team can maintain. No vendor lock-in or mysterious black boxes. You own the code and knowledge.

I'm transparent about risks upfront. During the free discovery call, I'll tell you if I can realistically achieve your goals. I don't take on projects where I can't deliver value. If we discover during the engagement that the scope needs to change, we adjust the plan transparently. I set realistic expectations and deliver measurable results, which is why clients continue working with me.

Still have questions? Let's talk.

Ready to Deliver Measurable ROI?

Ready to fix your data problems? Book a free 30-minute strategy call to discuss your challenges and how I can help.

100% Satisfaction Guaranteed - No commitment required

Available immediately for new projects

I work with companies for 2-6 month projects to fix broken data systems, reduce costs, and improve quality. Based in Paris & Montreal, available for remote and on-site work.

Fix broken data systems

Zero-downtime migrations

Data quality frameworks

How I Work

1. Discovery Call (30 min free) - I analyze your biggest data cost drivers and quality issues

2. Custom Proposal - ROI-focused solution with timeline and pricing (not generic templates)

3. Fast Kickoff - Start work within 1-2 weeks (I move quickly)

4. Weekly Updates - Transparent metrics showing progress and value delivered

Paris & Montreal

cmftall@gmail.com

Helping companies reduce data errors and improve efficiency through pragmatic data platforms

Trusted By

BNC

ORANGE

ONEPOINT

SOPRA STERIA

ATOS

Real Projects, Real Results

Sopra Steria

Onepoint

National Bank of Canada

Orange Côte d'Ivoire

Orange Sénégal

Orange Sénégal

Certifications & Credentials

Technologies & Tools

Cloud Platforms

Data Platforms

Languages

Tools & DevOps

Frequently Asked Questions

What if I'm not ready for a 2-6 month engagement?

Can you work with our existing team?

What if we only need help for 1-2 weeks?

How do you ensure ROI on data projects?

Do you work remotely or on-site?

What makes you different from other data consultants?

What if the project doesn't deliver the expected ROI?

Ready to Deliver Measurable ROI?

How I Work

Trusted By

BNC

ORANGE

ONEPOINT

SOPRA STERIA

ATOS

Real Projects, Real Results

Sopra Steria

Onepoint

National Bank of Canada

Orange Côte d'Ivoire

Orange Sénégal

Orange Sénégal

Certifications & Credentials

Technologies & Tools

Cloud Platforms

Data Platforms

Languages

Tools & DevOps

Frequently Asked Questions

What if I'm not ready for a 2-6 month engagement?

Can you work with our existing team?

What if we only need help for 1-2 weeks?

How do you ensure ROI on data projects?

Do you work remotely or on-site?

What makes you different from other data consultants?

What if the project doesn't deliver the expected ROI?

Ready to Deliver Measurable ROI?

How I Work