JOSEPH FAYESE
@josephfayese
Data analytics leader and Senior Manager building end-to-end analytics roadmaps across fintech and telecom.
What I'm looking for
I’m a data analytics leader with 10+ years building and directing analytics functions across fintech, telecom, and consumer insights. I’ve led data teams at MTN Nigeria and Multichoice Nigeria, and today I operate as the sole data leader across two fintech business units at MainHedge, owning the full analytics roadmap end to end.
I build practical data products that drive decisions: I developed a Power BI and HTML dashboard suite with 129+ DAX measures for executive reporting, standardized metric definitions and data governance, and drove adoption by embedding dashboards into weekly decision routines. I’ve trained 200+ analysts, mentored an 8-person team, and created internal training programs that measurably improved data-driven decisions and operational efficiency. From revenue assurance to forecasting, I architect and operate ClickHouse and PostgreSQL pipelines through Apache Airflow, and deliver models like XGBoost revenue forecasting (92% accuracy) and churn models.
Experience
Work history, roles, and key accomplishments
Head of Data & BI
MainHedge Inc.
Jan 2023 - Present (3 years 5 months)
Owned end-to-end data product roadmap across MainHedge’s Bitnob and Brails units, delivering a single source of truth for TPV and revenue and a self-serve intelligence platform for product and operations teams. Built a revenue assurance reconciliation framework identifying ~0.8 BTC unhedged exposure, delivered XGBoost forecasting with 92% accuracy, and improved retention (10% lift) while reducing user drop-off by 30%.
Led data analysis for strategic decision-making, contributing to 25% year-over-year revenue impact. Built predictive models that drove a 140% increase in subscriber rate and a 30% increase in enterprise portfolio growth, and owned an executive performance tracking dashboard integrating business unit data.
Independent Data Consultant
Independent
Feb 2021 - Nov 2022 (1 year 9 months)
Supported concurrent analytics and data delivery across Bitnob, Health Tracka, and Docktor's Konnect, including forecasting work that contributed to a $2.5M funding round. Built an OCR pipeline to standardize multi-source patient lab results and performed revenue assurance/bottleneck analysis across billing and collections workflows.
Independent Data Consultant
Independent Data Consultant
Feb 2021 - Nov 2022 (1 year 9 months)
Provided concurrent analytics and revenue forecasting support for Bitnob and contributed insights supporting a $2.5M funding round. Delivered data engineering and revenue assurance work across Health Tracka (OCR data pipeline) and Docktor's Konnect (billing/collections workflow analysis and operational loophole identification).
Senior Analytics Facilitator
Datamine Analytics
Jan 2018 - Apr 2021 (3 years 3 months)
Designed and delivered analytics training to 200+ participants, and trained an 8-person data team at Access Bank over 3 months on applied machine learning. Initiated an in-house training program at Bitnob that increased data-driven decision-making by 50%.
Research BI & Analytics
Multichoice Nigeria
Jun 2016 - Nov 2017 (1 year 5 months)
Performed cost-benefit analysis to guide product strategy, increasing revenue by 15% and cutting customer acquisition cost by 20%. Built churn prediction models (logistic regression and decision trees) to reduce churn by 5% and lift retention by 10%, and created a sales reporting portal that reduced manual effort by 45% and improved sales productivity by 25%.
Education
Degrees, certifications, and relevant coursework
Obafemi Awolowo University
Bachelor of Science, Chemical Engineering
Earned a B.Sc. in Chemical Engineering from Obafemi Awolowo University.
Tech stack
Software and tools used professionally
Postman
Snowflake
Airbyte
Tableau
Microsoft Azure
Amazon S3
GitHub
Cloudflare
NumPy
Pandas
PySpark
PostgreSQL
Microsoft SQL Server
Google Cloud Spanner
Google Docs
Gmail
OpenCV
Python
PowerShell
Microsoft PowerApps
scikit-learn
NLTK
FastAPI
Amazon RDS for PostgreSQL
Google Cloud Dataflow
Google Sheets
Microsoft Excel
Azure SQL Database
Vercel
Visual Studio Code
Docker
Airflow
Microsoft Power Automate
Google BigQuery
Microsoft Power BI
SQL
XGBoost
SciPy
Clickhouse
Supabase
Increase
Island
Jan
Availability
Location
Authorized to work in
Salary expectations
Social media
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