Portfolio — 2025
Available for opportunities

John Wesly
Korani

_

Data analyst · Classical pianist · Theology researcher. I find meaning in numbers, music, and ideas.

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PythonRPower BIExcelSPSSTableauSQLWiresharkNmapAbletonLogic ProGitVS CodeJupyterKali LinuxPythonRPower BIExcelSPSSTableauSQLWiresharkNmapAbletonLogic ProGitVS CodeJupyterKali Linux
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01 — Introduction

Four worlds, one person.

Hover over each card to explore the different facets of my life — click to jump to that section.

01
01 — Analyst

Data & Cybersecurity

I'm driven by curiosity to uncover the story behind raw numbers and turn them into meaningful insights. I use data analytics to solve real-world problems with clarity and precision. I'm excited by cybersecurity's evolving challenges—protecting data and building secure, resilient systems.

PythonSQLPower BITableauCybersecurity
02
02 — Musician

Music & Composition

I'm passionate about creating music that blends emotion, structure, and creativity. I play and compose across piano, guitar, and production, exploring both classical and modern styles. I'm driven to craft meaningful soundscapes that tell stories and leave a lasting impact.

PianoGuitarDrumsVocalsClassicalProduction
03
03 — Scholar

Theology & Philosophy

I'm drawn to exploring deep questions about faith, truth, and the meaning of life. I study theology and philosophy to understand how belief shapes thought and daily living. I'm passionate about connecting biblical truth with real-world application and thoughtful reflection.

Christian TheologyPhilosophyLiteratureResearch
04
04 — Researcher

Reading & Writing

I'm shaped by books that challenge my thinking and deepen my perspective. I explore theology, philosophy, and reflective literature while developing a consistent writing practice. I pursue personal research and writing to turn ideas into clear, meaningful insights.

BooksPersonal ResearchWritingClassical Music

02 — Work

Data & Analytics

Curiosity drives my approach to uncovering the story behind data and turning it into clear, decision-ready insights. I work with tools like Python, SQL, Power BI, and Tableau to analyze, visualize, and communicate data effectively. Alongside analytics, I'm passionate about cybersecurity—protecting data, identifying vulnerabilities, and solving problems where insight and security intersect.

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+34% decision speed

Sales Performance Dashboard

End-to-end Tableau dashboard tracking $8M quarterly revenue across 12 regions. Reduced reporting time from 3 days to 20 minutes.

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87% recall

Churn Prediction Model

Logistic regression on 200K subscriber records. Saved an estimated $1.2M in annual churn through targeted retention campaigns.

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+9% conversion

E-Commerce Funnel Analysis

Identified 22% checkout drop-off via cohort analysis in BigQuery. A/B tested fixes that raised conversion by 9%.

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Also exploring

Cybersecurity

My interest in cybersecurity started with a curiosity about how systems fail—and how they can be protected. Currently exploring core concepts through hands-on platforms and structured learning (like TryHackMe and foundational security topics), while building skills in areas such as network security, threat analysis, and vulnerability assessment. This journey connects closely with my data work, where securing data, detecting anomalies, and making informed, risk-aware decisions go hand in hand.

Network SecurityThreat AnalysisVulnerability AssessmentTryHackMeRisk Management

03 — Music

Music & Composition

Music began behind the drums, where rhythm and timing first took shape, before transitioning to the piano and growing into a deeper musical journey. Becoming a certified pianist through Trinity College marked a significant milestone, strengthening both technique and musical understanding. I compose across styles, blending structure with emotion, and see music as deeply connected to my faith and intellectual life—a way to reflect, create, and communicate beyond words.

I play

Instruments

Piano
Guitar
Drums
Vocals
I explore

Genres

ClassicalJazzGospelR&BElectronic
Certification

Certified Pianist

Trinity College of Music, London

In progress

Current Project

Currently working on a hymns project, focusing on arranging, layering, and refining each piece with depth and clarity. I use Logic Pro to build rich soundscapes, blending traditional melodies with modern production techniques. This project is both creative and reflective—aimed at honoring the essence of hymns while giving them a fresh, expressive sound.

Follow on SpotifyFollow on Apple Music
Logic ProUA PluginsMulti-track RecordingMixing

04 — Thought

Theology & Philosophy

I am a Christian who follows Jesus, and my theological journey is rooted in a desire to know Him more deeply and understand the truth of Scripture. My interest in Christian literature and philosophy grew through engaging with thoughtful writers and texts that challenge both heart and mind. I continue to explore questions around faith, reason, and how biblical truth shapes everyday life, seeking to connect belief with thoughtful reflection and practical living.

“The only person who dares wake up a king at 3:00 a.m. for a glass of water is a child. We have that kind of access.”

Tim Keller·Prayer: Experiencing Awe and Intimacy with God
Formative reading

Influential Books

01

The Holy Bible

God

02

Systematic Theology

John M. Frame

03

With

Skye Jethani

Follow me on YouVersion
Areas of study

Research Areas

Systematic TheologyChristian PhilosophyBiblical HermeneuticsPatristicsEthics & ApologeticsChurch History
Now studyingMere Christianity by C.S. Lewis.

05 — Reading

Reading & Writing

I read to grow in understanding—of faith, ideas, and the world around me. I engage regularly with books that challenge my thinking, especially in theology, philosophy, and reflective literature. Reading shapes how I approach data with clarity, music with depth, and faith with intentional reflection, connecting ideas across both intellectual and creative life.

“You do not rise to the level of your goals. You fall to the level of your systems.”

James Clear·Atomic Habits

Genres I Explore

TheologyChristian FictionPhilosophyBiographyHistorical FictionClassic LiteratureData & SciencePoetry
Mere Christianity
Currently Reading

Mere Christianity

C.S. Lewis

I started reading Mere Christianity to better understand what I believe, not just emotionally but logically. What stands out is how Lewis explains morality in a way that makes me reflect on where my sense of right and wrong really comes from. It's also making me question whether I'm living my faith intentionally or just out of habit.

9%
Reading list

Books That Shaped Me

Foxe's Book of Martyrs
01

Foxe's Book of Martyrs

John Foxe

This book changed how I see the world by showing me the cost of true faith and how deeply people have suffered to stand for what they believe.

With
02

With

Skye Jethani

This book reshaped my perspective by helping me realize that life with God is not about using Him or working for Him, but simply being in relationship with Him.

The 48 Laws of Power
03

The 48 Laws of Power

Robert Greene

This book changed how I see the world by exposing the subtle ways power operates in human relationships and leadership.

Coffee & Discussion

Have a book that shook you, a theological argument you can't stop thinking about, or simply want to swap reading lists? I love a good conversation over coffee — in person or virtual. Click below and let's pick a chapter to discuss.

Let's have that coffee

06 — Expertise

Skills & Tools

Proficiency shown as arc fill — brighter gold means stronger command.

Data & Analysis

6 skills
95%
SQL
90%
Python
85%
Power BI
88%
Tableau
80%
Statistics
92%
Excel / GSheets
Expert90–100%
Advanced78–89%
Proficient65–77%
Learning< 65%

Music

6 skills
95%
Piano
75%
Guitar
90%
Drums
88%
Music Theory
82%
Composition
72%
Production
Expert90–100%
Advanced78–89%
Proficient65–77%
Learning< 65%

Engineering

6 skills
78%
TypeScript
75%
Next.js
82%
PostgreSQL
80%
BigQuery
65%
dbt
85%
Git
Expert90–100%
Advanced78–89%
Proficient65–77%
Learning< 65%

Cybersecurity

4 skills
68%
Network Basics
72%
Linux / CLI
60%
OSINT
62%
Threat Analysis
Expert90–100%
Advanced78–89%
Proficient65–77%
Learning< 65%
Available for opportunities

07 — Connect

Let's work together.

Open to data roles, research collaborations, music projects, and thoughtful conversations. If you have something worth building, I'd love to hear about it.

Book a 30-min call
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