Portfolio - Nnenna Afor Henchard

About Me

I’m a data science professional with a background in oil & gas operations, health & safety, and education. I’ve spent years working in real-world environments—monitoring facilities, assessing risks, and supporting safe, efficient operations—which shaped how I approach problems: practically and with impact in mind.
Now, I apply data science to that experience. Using tools like Python and SQL, I build models and analytics solutions that help make better decisions, reduce risk, and improve performance. I’ve worked on projects in credit risk, expense analytics, and business reporting systems, always focusing on solutions that are useful, not just technical.
I’m especially interested in energy, sustainability, and risk analytics—areas where data can directly improve safety, efficiency, and outcomes.

Key Skills

Python (Pandas, NumPy, scikit-learn) • SQL • Excel • Data Analysis & EDA • Machine Learning • Data Visualization • Git • Oil & Gas • HSE • Risk Analytics

My Experience

Independent Professional

Lagos, Nigeria

Data Scientist (Full-Time)

Jan 2024 - Present

Built credit risk models using Python (Pandas, scikit-learn) across credit card, healthcare, and expense datasets, improving

classification accuracy by ~20–25%.

Applied data science to oil & gas, HSE, and operations datasets, integrating risk modelling with safety and performance insights.

Developed credit scoring, expense tracking, and risk segmentation solutions using Python, SQL, and Excel, with feature engineering

and model evaluation.

Built a scalable analytics app for automated reporting, reducing manual analysis time by ~30–40%.

Leveraged HSE and operations expertise to deliver data-driven insights for risk reduction and performance improvement.

Skills: Analytical Thinking · Problem Solving · Attention to Detail · Critical Thinking · Cross-functional Collaboration · Business Acumen ·

Communication of Complex Insights · Continuous Learning · Initiative · Process Improvement Mindset

Lee Engineering Ltd, Lagos

Lagos, Nigeria

HSE Supervisor (Full-Time)

Feb 2016 - Sep 2023

Supervised HSE operations across construction and O&M oil & gas sites, ensuring ISO 45001 compliance and achieving >98% audit

pass rates with zero major regulatory breaches.

Conducted risk assessments, HAZID/HAZOP & JHA across field operations, reducing incidents by ~20–30% through proactive hazard

identification and corrective actions.

Tracked safety data using Excel dashboards and incident logs to identify trends and support data-driven HSE reporting.

Led toolbox talks, safety inspections, and emergency response drills with >95% workforce participation.

Managed stakeholder engagement across contractors & oil & gas clients, improving compliance and reducing unsafe practices by

~15–25%.

Skills: Leadership & Team Management · Stakeholder Engagement & Communication · Risk Awareness & Critical Thinking · Attention to

Detail · Data-Driven Decision-Making · Compliance & Regulatory Judgement · Proactive Hazard Recognition · Training & Workforce

Development · Conflict Resolution · Cross-functional Collaboration · Analytical Thinking · Accountability & Integrity

Mad Science, Nigeria

Lagos, Nigeria

Head Operations / Training (Full-Time)

Apr 2010 - Jan 2016

Coordinated STEM programs across multiple schools, managing schedules, logistics, and facilitators; supported 500+ students/term

with 95%+ completion rates and strong satisfaction.

Planned science curricula and experiments, improving engagement and retention by ~20–30% through hands-on learning.

Managed procurement and inventory using Excel (budget tracking, logs), reducing shortages and cutting costs by ~15%.

Recruited, trained, and supervised facilitators, achieving >90% performance ratings and consistent delivery quality.

Monitored program data and feedback, producing Excel reports and dashboards to drive continuous improvement.

Skills: Leadership & Team Management · Program Coordination · Stakeholder Communication · Strategic Planning · Problem-Solving ·

Attention to Detail · Analytical Thinking · Adaptability · Mentoring & Coaching · Results Orientation · Organizational Skills · Decision-Making

Mobil Producing Nigeria Unlimited (MPN)

Eket and Lagos Nigeria

Graduate Attachee (Internship)

Sep 2008 - Mar 2010

Monitored tank farm operations (tanks, valves, flow lines), tracking pressure, temperature, and volume; delivered daily reports

supporting >99% uptime and zero major incidents.

Conducted inspections and coordinated maintenance, identifying faults early and reducing unplanned downtime by ~15–25%.

Performed risk assessments (HAZID/HAZOP support), contributing to ~20–30% reduction in near-miss incidents.Analyzed operational data using Excel (trend analysis, reporting) to detect anomalies and improve reliability.

Led safety trainings, drills, and audits, achieving >90% compliance and stronger safety culture.

Decision-Making | Compliance & Accountability | Continuous Improvement

Nnenna Afor Henchard

Applied Data Scientist

1

About Me

Key Skills

My Projects

SMARTTRACK BUSINESS ANALYTICS PLATFORM

ORPMI — Operational Reliability & Predictive Maintenance Intelligence Platform

My Experience

Awards & Certificate

Let's Connect