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Focused on building reliable financial insights
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Focused on building reliable financial insights

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@CoreInsightFinance

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TeslimAdeyanju/README.md

ACA Chartered Accountant & Financial Data Analyst — building audit-ready financial pipelines with Python, SQL, and Power BI.
Open to Finance & Data Analyst roles in the UK  ·  Skilled Worker Visa Sponsorship required

       


About Me

I am a Chartered Accountant and Financial Data Analyst with over a decade of experience across financial reporting, FP&A, and data analytics.

My work focuses on transforming traditional finance environments into structured, automated, and traceable analytical systems using Python, SQL, and Power BI.

I design solutions that replace spreadsheet driven processes with controlled pipelines that improve accuracy, speed, and decision confidence.

My approach combines accounting discipline with data engineering practices to ensure financial outputs remain reliable, explainable, and scalable.

💡 Philosophy: Good data engineering makes good analysis simple. Clean data, reliable pipelines, audit trails built in.


Core Expertise

  • Financial Planning and Analysis
  • Budgeting, Forecasting, and Variance Analysis
  • Reporting Automation and Process Optimisation
  • Data Modelling for Financial Analytics
  • Audit Ready Analytics and Control Frameworks
  • Performance Management and Decision Support

Technical Stack

Languages

Data, ML & Analytics

Databases

BI & Reporting

Tools & Workflow


What I Do Differently

I treat financial analysis as an engineering discipline rather than a reporting activity.

I build systems that are traceable, reusable, auditable, and performance optimised — designed for scale rather than manual maintenance.

This allows organisations to move from static reporting to insight driven decision making supported by controlled data pipelines.


Open Source Project Lead

FDA Toolkit — Enterprise Financial Data Toolkit

PyPI version Python versions License Downloads

I am the creator and maintainer of FDA Toolkit, an open source Python project I architected and developed to solve real world challenges in financial data analysis.

The toolkit enables financial analysts, accountants, and data professionals to produce reliable, auditable, and repeatable analytics by replacing fragile spreadsheet driven processes with structured validation, transformation, and reporting pipelines designed for production use.

Key Features

  • 67 production ready functions organised across 8 modular components
  • Full type hinting with IDE level autocomplete and validation
  • Compliance focused design with automatic audit logging and traceability
  • Finance aware validation tailored to real accounting and FP&A workflows
  • One line pipelines for complex transformations such as ftk.quick_clean_finance()
  • Enterprise grade engineering including structured error handling, security controls, and memory efficiency

Install:

pip install fda-toolkit

FDA Toolkit overview

View on PyPI  •  GitHub Repository


Selected Portfolio Work

Project Tech Stack Impact Link
NHS Trust Financial Analytics Python, MySQL, SQL, Power BI End-to-end ETL pipeline covering 206 NHS Trusts across 3 financial years — star schema, KPI views, Power BI export View Project
Financial Data Pipeline Python, APIs, Pandas, Forecasting Full pipeline from API extraction to data cleaning, automated forecasting, trading simulation, and deployment View Project
Stock Market Analysis — Tech Giants Python, Pandas, NumPy, Monte Carlo Analysed GOOGL, AMZN, AAPL and MSFT — daily returns, Sharpe ratio, volatility, and 30-year Monte Carlo projection View Project
ML in Financial Analysis Python, Scikit-learn, XGBoost, Kubernetes Regression for trend prediction, classification for risk assessment, ensemble models for portfolio optimisation View Project
Diamond Price Prediction Python, Scikit-learn, Pandas, EDA End-to-end ML project covering EDA, feature engineering, and supervised learning to predict diamond prices View Project
MySQL — Fundamentals to Advanced MySQL, Python, Jupyter Comprehensive MySQL showcase covering advanced queries, stored procedures, and Python integration for live data frames View Project
Student Wellbeing Analytics MySQL, Advanced SQL, Jupyter Advanced SQL portfolio covering multi-table analysis, window functions, and insight delivery on student wellbeing data View Project

GitHub Activity

 


Coding Activity — WakaTime

Total time coded since start

From: 04 March 2026 - To: 10 March 2026

Total Time: 30 hrs 33 mins

Other        22 hrs 6 mins         ██████████████████░░░░░░░   72.37 %
Markdown     4 hrs 40 mins         ███▓░░░░░░░░░░░░░░░░░░░░░   15.29 %
Python       2 hrs 53 mins         ██▒░░░░░░░░░░░░░░░░░░░░░░   09.47 %
SQL          21 mins               ▒░░░░░░░░░░░░░░░░░░░░░░░░   01.16 %
HTML         18 mins               ▒░░░░░░░░░░░░░░░░░░░░░░░░   01.01 %

Connect

       

Pinned Loading

  1. portfolio-01-nhs-financial-analytics portfolio-01-nhs-financial-analytics Public

    End-to-end NHS Trust financial analytics: Python ETL pipeline ingesting 6 NHS England TAC Excel files into MySQL, SQL star schema, analytical views, KPI computations, and Power BI export — covering…

    Python

  2. portfolio-21-mysql-fundamentals portfolio-21-mysql-fundamentals Public

    This repository showcases my exploration of MySQL, covering key concepts to advanced. To enhance insights, I’ve integrated Python to connect, query, and transform data into clean, interactive data …

    Jupyter Notebook 2

  3. portfolio-03-stock-market-analysis portfolio-03-stock-market-analysis Public

    I am currently analyzing a portfolio of GOOGL, AMZN, AAPL, and MSFT, evaluating daily returns, volatility, and the Sharpe ratio. Additionally, I’m using a Monte Carlo simulation to project the port…

    Jupyter Notebook 1 1

  4. portfolio-07-ml-financial-analysis portfolio-07-ml-financial-analysis Public

    I am exploring machine learning in financial analysis, using regression for trend prediction, classification for risk assessment, and ensembles for portfolio optimization. I also leverage Kubernete…

    Jupyter Notebook 1

  5. portfolio-08-diamond-price-prediction portfolio-08-diamond-price-prediction Public

    The primary goal is to predict the price of a diamond using its features by applying exploratory data analysis feature engineering and supervised machine learning techniques

    Jupyter Notebook 1

  6. portfolio-02-financial-data-pipeline portfolio-02-financial-data-pipeline Public

    A hands-on roadmap project focused on building a full financial data pipeline—from API data extraction to automated forecasting, trading simulation, and deployment using Python and modern data tools.

    Jupyter Notebook