Abiodun Onaolapo
@abiodunonaolapo
Backend developer and data scientist building scalable APIs and data-driven web applications.
What I'm looking for
I am a results-driven backend developer and data scientist with over five years' experience building scalable web applications and APIs using Node.js (Express), PHP (Laravel), and Python (Flask, FastAPI, Django), and managing MongoDB, MySQL, PostgreSQL, Redis, and Memcache for performance and reliability. I have designed and deployed full-stack projects including an Airbnb clone, TeaOrb e-commerce, School Management App, and FixDRide, and led delivery as Senior Software Engineer where mentoring and curriculum work improved retention/performance by ~35%.
I translate data into actionable insights with pandas, scikit-learn and Power BI and enjoy mentoring developers to grow technical skills; I am seeking roles building scalable APIs and data-driven products within collaborative teams that value mentorship and measurable impact.
Experience
Work history, roles, and key accomplishments
Backend Developer & Data Scientist
Freelance
Jan 2025 - Present (8 months)
Designed and deployed scalable full-stack applications (Airbnb clone, school management system, TeaOrb e-commerce, FixDRide), built REST/GraphQL APIs consumed by React frontends, and delivered ETL pipelines, analytics dashboards, and predictive insights.
Senior Software Engineer
Cyclobold Technology Limited
Jan 2022 - Jan 2025 (3 years)
Led development of client-facing systems including FixDRide, Craft Store, and Airbnb-style booking apps; mentored junior developers and ran workshops that improved retention and performance by 35% while delivering scalable, client-aligned solutions.
Full Stack Engineer
DeftRains Solutions
Jan 2021 - Jan 2022 (1 year)
Built TeaCommerce e-commerce site with catalog, cart, user roles and Paystack payments; implemented AJAX product search, admin dashboard, deployed on VPS with Apache, and improved UX and operational efficiency.
Education
Degrees, certifications, and relevant coursework
DeftRains Solutions
Certificate in Full Stack Web Development, Full Stack Web Development
Completed a Full Stack Web Development certification covering backend and frontend technologies.
University of Lagos
Bachelor of Science (Honours), Chemistry
Completed a B.Sc. (Hons.) in Chemistry at the University of Lagos.
Availability
Location
Authorized to work in
Website
saydotech.comPortfolio
saydotech.comSalary expectations
Job categories
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