Data Scientist | Software Developer

Turning Raw Data Into
Business Intelligence

I'm Emmanuel Nzioka, a Data Scientist and Software Developer with a passion for turning complex datasets into actionable intelligence that drives strategic decisions.

With expertise in machine learning, predictive analytics, and data visualization, I bridge the gap between technical complexity and business value.

My approach combines advanced analytics with practical business understanding to deliver solutions that are not just technically sound, but strategically valuable.

EN

Emmanuel Nzioka

Data Scientist & Software Developer

Location: Nairobi, Kenya
GitHub: calvin-code
Portfolio: View Projects
Tableau: View Dashboards

Professional Journey

My path through data science, analytics, and business intelligence

Systems & Data Analyst

Aug 2025 – Present | Remote
ZukBits Online
  • Enhanced platform reliability and data integrity through comprehensive system testing and proactive monitoring
  • Generated actionable insights from system and traffic data that informed critical product and marketing decisions
  • Delivered dashboards and reports tracking key performance metrics across systems, campaigns, and user engagement
  • Optimized SEO and digital marketing effectiveness by analyzing trends and conversion data
  • Translated complex technical data into clear insights for non-technical stakeholders

Freelancer — Data Analyst & Applied Data Science

Jan 2021 – Present | Nairobi, Kenya
  • Delivered end-to-end analytical solutions transforming raw data into strategic business intelligence
  • Built predictive models preventing customer churn, optimizing pricing strategies, and mitigating risk exposure
  • Improved campaign ROI through statistical modeling, A/B testing optimization, and performance analysis
  • Engineered features and customer segments driving measurable business outcomes and model accuracy
  • Enabled stakeholder decision-making through interactive Power BI and Tableau dashboards communicating complex insights

Data Analyst — Data Systems Analyst

Jan 2022 – Apr 2023 | Makueni, Kenya
Yamat Engineering EA
  • Transformed operations from manual record-keeping to automated inventory tracking through IMS implementation
  • Achieved significant improvements in data accuracy and operational efficiency via structured data modeling
  • Uncovered demand patterns and operational inefficiencies enabling better stock management and cost optimization
  • Empowered management through monthly analytical reports supporting informed planning and procurement decisions
  • Aligned system design with real business processes through cross-functional collaboration with operations and finance teams

STEM Training Tutor

2024 | STEMRobo Kenya
  • Developed practical programming and robotics skills in students through hands-on learning methodology
  • Built strong foundation in data fundamentals preparing students for tech careers
  • Contributed to growing pipeline of next-generation technology talent in STEM fields

Education & Credentials

Building a foundation for data excellence

BSc Software Development

KCA University — 2021–Present

Comprehensive software engineering program focusing on modern development practices, algorithms, and system design principles.

Data Science Certificate

Mentors Without Borders — 2023

Advanced data science training covering machine learning, statistical analysis, and practical applications in real world business scenarios.

Web Development & Design

KCA University — 2021

Front end and back end web development fundamentals including responsive design, user experience principles, and modern frameworks.

STEM Training Tutor

STEMRobo Kenya — 2024

Certified STEM educator training program focusing on programming, robotics, and data science fundamentals for educational contexts.

Skills

Technical expertise across data science, analytics, software development, and how I work with teams

Data Science & Analytics

Python
R Programming
Statistics & Analytics
Machine Learning
AI & Data Science
Data Mining
Data Visualization
Big Data

Business Intelligence & Tools

Tableau
Power BI
Looker
BI Tools
Advanced Excel
MS Office Suite
JASP
Reporting & Dashboards

Engineering, Databases & Cloud

SQL & Databases
MySQL
SQLite
Data Integration & ETL
Java
GitHub
AWS
Google Cloud
Oracle Cloud

Soft Skills & Collaboration

Stakeholder Communication
Business Storytelling with Data
Teaching & Mentorship
Collaboration & Teamwork
Problem Solving & Critical Thinking
Adaptability & Continuous Learning
Documentation & Reporting

By The Numbers

A quick snapshot of the projects shipped, experience built, and value delivered.

0 Projects Completed
0 Years Experience
0 Client Satisfaction

Beyond The Code

The human side of data science, fuelled by roaring engines, loud stadiums, good music, and building people as much as projects.

Motorsport and racing

Motorsport Fanatic

F1, Le Mans, WRC Safari Rally, if it has speed, strategy, and split second calls, I am locked in. I live somewhere between a Tifosi chanting Forza Ferrari or "Cavallino Rampante" and an engineer quietly reading race telemetry. That same race pace mindset shows up in how I debug, tune models, and mentor juniors, with fast feedback, clean execution, and no unnecessary pit stops.

Automotive engineering details

Automotives & Engineering

I still cannot pick a clear winner between Swiss engineering and German tech cars, precision meets ruthless efficiency. I enjoy well designed systems, whether it is a power unit or a data pipeline. That engineering obsession blends with my problem solver side, I prefer clean architecture, maintainable code, and solutions that feel carefully overbuilt where it truly matters.

Music and Le Padre vibes

Music, Books & Movies

Music, books and movies are how I reset. I break down plots like datasets and build playlists the way I build models, layered, intentional, and tuned for mood. There is usually a touch of "Le Padre" somewhere in the queue, especially those long medleys that feel like a whole legacy woven into one track, perfect for late night work sessions, "Dynastie Medley." That love of story flows into business storytelling with data, turning numbers into narratives people actually remember.

Football and teamwork

Football, Teams & Community

I enjoy football for the tactics and chemistry, pressing triggers, positioning, and the small details that win games. I bring that same mindset into work, with team first, clear roles, and shared goals. Between mentoring students, teaching STEM, and collaborating with clients, I see myself as a community builder who uses data to move people and projects forward together.

Under The Hood

Made with love, music and coffee.

Core Logic

PHP

The main engine behind routing, business logic, and the custom CMS. Handles everything from project pages to the admin panel, like a reliable power unit quietly doing laps all day.

Data Layer

PostgreSQL

Structured relational storage powering content and Supabase features. Think of it as a precise race strategist, keeping every record where it should be and ready for whatever query you throw at it.

Storage & Services

Supabase

Used for modern cloud features and integrations. It is the data paddock where logs, future analytics, and extra services can live without slowing down the main garage.

Front End

Custom CSS & JS

Hand crafted styling and animations for the strawberry vanilla theme, plus lightweight JavaScript for typing effects, scroll animations, and counters. Lean, responsive, and tuned for smooth performance.

Markup

HTML

Semantic structure for every page, keeping the layout clean, accessible, and search friendly. It is the stable chassis that lets the styling and logic sit exactly where they should.

Helpers & Utilities

Custom Helper Library

Config, SEO, CSRF protection, logging, uploads, and utilities are all wrapped in dedicated helpers. Keeps the codebase tidy and lets new features plug in like a well designed upgrade package on race weekend.

Let’s build something

Ready to turn data into decisions?

Whether you need dashboards for your daily use, models that speak business, or a teammate who can explain analytics to non technical teams, I am happy to jump on the grid with you and help move the needle.