Skip to content
View TeslimAdeyanju's full-sized avatar
:fishsticks:
Focused on building reliable financial insights
:fishsticks:
Focused on building reliable financial insights

Organizations

@CoreInsightFinance

Block or report TeslimAdeyanju

Block user

Prevent this user from interacting with your repositories and sending you notifications. Learn more about blocking users.

You must be logged in to block users.

Maximum 250 characters. Please don’t include any personal information such as legal names or email addresses. Markdown is supported. This note will only be visible to you.
Report abuse

Contact GitHub support about this user’s behavior. Learn more about reporting abuse.

Report abuse
TeslimAdeyanju/README.md

ACA Chartered Accountant & Microsoft Certified Power BI Data Analyst — building audit-ready financial pipelines with Python, SQL, and Power BI  ·  Open to Finance & Data Analyst roles in the UK.

         


About Me

I am a Chartered Accountant, Microsoft Certified Power BI Data Analyst (PL-300), 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.


Qualifications & Certifications

  • MSc Finance and Investment Banking (with Advanced Research) — Distinction · University of Hertfordshire, UK · 2024
  • ACA — Associate Chartered Accountant · Institute of Chartered Accountants of Nigeria · 2019
  • Microsoft Certified: Power BI Data Analyst Associate (PL-300) · 2026
  • Xero Certified Advisor
  • SQL & Database Design
  • Python for Data Analysis

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: 12 July 2026 - To: 19 July 2026

Total Time: 38 hrs 44 mins

Other      29 hrs 24 mins        ███████████████████░░░░░░   75.92 %
Markdown   7 hrs 33 mins         █████░░░░░░░░░░░░░░░░░░░░   19.50 %
Python     1 hr 4 mins           ▓░░░░░░░░░░░░░░░░░░░░░░░░   02.77 %
Org        26 mins               ▒░░░░░░░░░░░░░░░░░░░░░░░░   01.12 %
YAML       7 mins                ░░░░░░░░░░░░░░░░░░░░░░░░░   00.31 %

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-24-nhs-waiting-list-analytics portfolio-24-nhs-waiting-list-analytics Public

    The NHS waiting list grew from 4.4 million in March 2020 to 7.7 million by September 2023 — even as referrals collapsed 40% during COVID. This project builds an end-to-end analytics pipeline to sep…

    Jupyter Notebook 1

  3. portfolio-06-advanced-sql-analytics-international-cohort-risk-segmentation portfolio-06-advanced-sql-analytics-international-cohort-risk-segmentation Public

    This project applies enterprise-level SQL analytics to a real-world mental health dataset collected from an international university. The analysis examines how length of stay influences depression,…

    Jupyter Notebook 2

  4. 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

  5. portfolio-15-world-university-ranking portfolio-15-world-university-ranking Public

    Power BI report analyzing QS World University Rankings (2025→2026) — star schema, 29 DAX measures, 592 universities across 73 countries, 5-page interactive report.

    Jupyter Notebook

  6. Portfolio-22-Financial-Performance-Analytics-Model Portfolio-22-Financial-Performance-Analytics-Model Public

    Power BI Financial Data Analysis A comprehensive financial performance analytics model built with Microsoft Power BI, demonstrating star-schema data modelling, Power Query transformations, and a st…