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JOHN OLANREWAJUJO
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JOHN OLANREWAJU

@johnolanrewaju

No-Code/AI Application Developer building clinic transaction tracking and member contribution systems.

Nigeria
Message

I directed the build of a healthcare clinic’s financial and transaction-tracking application using Vite, Supabase, and Vercel. It includes role-based access, a debtors’ ledger, petty cash tracking, transfer requests, profit-and-loss reporting, and an audit trail.

For a 40+ member cooperative association, I directed the development of an automated contribution system, extending a spreadsheet into a Google Apps Script web application. Members can view their contribution histories and balances, while administrators can log contributions with automated calculations.

At Smartway Real Estate Inc., I coordinated commercial construction projects remotely from Nigeria, working across time zones with property owners, contractors, and trade vendors. I built project schedules and reporting dashboards with Asana, ClickUp, and Google Workspace, and supported procurement and schedule improvements.

Experience

Work history, roles, and key accomplishments

IS
Current

No-Code/AI Application Developer

Independent Client — Healthcare / Clinic Sector

Jan 2026 - Present (9 months)

Directed the design and build of a custom full-stack financial and transaction-tracking web application for a healthcare clinic, replacing manual paper-based tracking. Owned the full lifecycle including database schema design, UI/UX, deployment, and ongoing maintenance.

Education

Degrees, certifications, and relevant coursework

Coursera logoCO

Coursera

Certified Quantity Takeoff and Estimating, Quantity Takeoff and Estimating

Completed a certification in Quantity Takeoff and Estimating in 2026.

DL

Dovi Learn

Project Management & Health and Safety Certification, Project Management and Health and Safety

Completed a certification in Project Management and Health and Safety in 2022.

FA

Federal Polytechnic, Ado-Ekiti

HND, Building Technology

2017 - 2019

Pursued a Higher National Diploma in Building Technology from 2017 to 2019.

TI

The Polytechnic, Ibadan

ND, Quantity Surveying

2014 - 2016

Pursued a National Diploma in Quantity Surveying from 2014 to 2016.

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