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Opeyemi

@opeyemia615

monthly-level-five.svgverified-v3.svgrising-star.svg
5.0
6

4.7

4.7

100%

⭐ Full-Stack Web & Mobile App & AI/ML & UI/UX ⭐

$60 USD / Hour

・

Flag of UNITED STATES

United States (6:37 PM)

・

Joined on June 5, 2026

・

2 Recommendations

Hi, I'm Opeyemi, a Senior Full-Stack Web & Mobile App Developer with over 8 years of experience building modern, scalable, and high-performance applications. I specialize in developing custom web applications, mobile apps, REST APIs, SaaS platforms, e-commerce solutions, and business management systems. My focus is on writing clean, maintainable code while delivering solutions that are fast, secure, and easy to scale. I believe successful projects are built through clear communication, careful planning, and attention to detail. Whether you need a new application, feature enhancements, bug fixes, or long-term development support, I am committed to delivering high-quality results on time. My Expertise ➤ Frontend React.js, Next.js, Vue.js, JavaScript (ES6+), TypeScript, HTML5, CSS3, Tailwind CSS, Bootstrap ➤ Backend Node.js, Express.js, Laravel, PHP, REST API Development, Authentication (JWT, OAuth) ➤ Mobile Development Flutter, Android, iOS ➤ Database MySQL, PostgreSQL, MongoDB, Firebase ➤ Cloud & DevOps AWS, DigitalOcean, Docker, Nginx, Linux, Git, GitHub Services I Offer ✅ Custom Web Application Development ✅ Mobile App Development ✅ SaaS Development ✅ REST API Development & Integration ✅ Admin Dashboards ✅ E-commerce Development ✅ Bug Fixing & Performance Optimization ✅ Database Design ✅ Website Maintenance ✅ Third-party API Integration Why Hire Me? • 8+ Years of Professional Experience • Clean, Scalable & Maintainable Code • Fast Communication • On-Time Delivery • Daily Progress Updates • Long-Term Support • Client Satisfaction is My Priority I look forward to discussing your project and helping turn your ideas into reliable, high-quality software.

Verifications

On time

100%

On budget

100%

Accept rate

90%

Repeat hire rate

13%

Freelancer PHP Developers United States
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Portfolio

Portfolio

14116442
Describe the work you completed Built Saffron, a recipe manager so cooks can save, edit, and cook from their favorite recipes on phone or web without ads or clutter. The mobile app lets users: - Import a recipe from any website (title, photo, ingredients, steps, cook time, and source) - Switch between Intro, Ingredients, and Steps while cooking - Edit ingredients, steps, notes, and cook times on the phone - Link one recipe inside another for nested dishes (for example, a sauce used in noodles) - Search by recipe name, ingredient, or author - Organize recipes into cookbooks with custom sections - Plan meals and generate grocery lists - Sync recipes in the cloud across iOS, Android, and the website The UI is clean and kitchen-friendly: large readable type, photo-led recipe cards, and a focused cook mode so users can follow a dish with one hand.

Saffron Recipe App - iOS, Android

14132354
I designed and built the website for Moj Lab, a private clinic and laboratory chain in Montenegro. The site covers laboratory testing, a polyclinic, day surgery, pediatrics, gynecology and IVF, and radiology across nine cities, including Podgorica, Budva, Cetinje, and Kotor. The homepage opens with a full-width hero (“Moj Lab brinе o meni”), then service highlights, a doctor-visit announcements carousel, news and promotions, an about section, careers, a patient survey, and a footer with locations plus a booking call to action. Inner pages cover each department, doctors, locations, and appointment booking. I built it in Webflow as a responsive multi-page site: a calm green medical look, clear navigation, and content patients can scan quickly on desktop and mobile.

Professional Clinic Website Build

14077794
Built a full-stack science learning platform for middle school (Grades 6–8) from foundation through launch. Delivered role-based auth (student, teacher, admin), a student dashboard with Science HQ missions and quizzes, a Discovery Scan diagnostic with topic mastery and lesson recommendations, and teacher Mission Control for classes, roster, lesson assignments, progress tracking, and CSV export. Also built an admin CMS for units, lessons, assessments, and image uploads, plus user/class management. Designed a modern glass UI, deployed on Vercel, and integrated Supabase (PostgreSQL, RLS, storage). Client approved the MVP and continued with revisions and long-term collaboration.

Full-stack Science Learning Platform

Built a full-stack science learning platform for middle school (Grades 6–8) from foundation through launch. Delivered role-based auth (student, teacher, admin), a student dashboard with Science HQ missions and quizzes, a Discovery Scan diagnostic with topic mastery and lesson recommendations, and teacher Mission Control for classes, roster, lesson assignments, progress tracking, and CSV export. Also built an admin CMS for units, lessons, assessments, and image uploads, plus user/class management. Designed a modern glass UI, deployed on Vercel, and integrated Supabase (PostgreSQL, RLS, storage). Client approved the MVP and continued with revisions and long-term collaboration.

Full-stack Science Learning Platform

Built a full-stack science learning platform for middle school (Grades 6–8) from foundation through launch. Delivered role-based auth (student, teacher, admin), a student dashboard with Science HQ missions and quizzes, a Discovery Scan diagnostic with topic mastery and lesson recommendations, and teacher Mission Control for classes, roster, lesson assignments, progress tracking, and CSV export. Also built an admin CMS for units, lessons, assessments, and image uploads, plus user/class management. Designed a modern glass UI, deployed on Vercel, and integrated Supabase (PostgreSQL, RLS, storage). Client approved the MVP and continued with revisions and long-term collaboration.

Full-stack Science Learning Platform

Built a full-stack science learning platform for middle school (Grades 6–8) from foundation through launch. Delivered role-based auth (student, teacher, admin), a student dashboard with Science HQ missions and quizzes, a Discovery Scan diagnostic with topic mastery and lesson recommendations, and teacher Mission Control for classes, roster, lesson assignments, progress tracking, and CSV export. Also built an admin CMS for units, lessons, assessments, and image uploads, plus user/class management. Designed a modern glass UI, deployed on Vercel, and integrated Supabase (PostgreSQL, RLS, storage). Client approved the MVP and continued with revisions and long-term collaboration.

Full-stack Science Learning Platform

Built a full-stack science learning platform for middle school (Grades 6–8) from foundation through launch. Delivered role-based auth (student, teacher, admin), a student dashboard with Science HQ missions and quizzes, a Discovery Scan diagnostic with topic mastery and lesson recommendations, and teacher Mission Control for classes, roster, lesson assignments, progress tracking, and CSV export. Also built an admin CMS for units, lessons, assessments, and image uploads, plus user/class management. Designed a modern glass UI, deployed on Vercel, and integrated Supabase (PostgreSQL, RLS, storage). Client approved the MVP and continued with revisions and long-term collaboration.

Full-stack Science Learning Platform

Built a full-stack science learning platform for middle school (Grades 6–8) from foundation through launch. Delivered role-based auth (student, teacher, admin), a student dashboard with Science HQ missions and quizzes, a Discovery Scan diagnostic with topic mastery and lesson recommendations, and teacher Mission Control for classes, roster, lesson assignments, progress tracking, and CSV export. Also built an admin CMS for units, lessons, assessments, and image uploads, plus user/class management. Designed a modern glass UI, deployed on Vercel, and integrated Supabase (PostgreSQL, RLS, storage). Client approved the MVP and continued with revisions and long-term collaboration.

Full-stack Science Learning Platform

Built a full-stack science learning platform for middle school (Grades 6–8) from foundation through launch. Delivered role-based auth (student, teacher, admin), a student dashboard with Science HQ missions and quizzes, a Discovery Scan diagnostic with topic mastery and lesson recommendations, and teacher Mission Control for classes, roster, lesson assignments, progress tracking, and CSV export. Also built an admin CMS for units, lessons, assessments, and image uploads, plus user/class management. Designed a modern glass UI, deployed on Vercel, and integrated Supabase (PostgreSQL, RLS, storage). Client approved the MVP and continued with revisions and long-term collaboration.

Full-stack Science Learning Platform

13976502
We delivered a complete turnkey renovation and fit-out for a luxury residential villa in Abu Dhabi. Our scope included structural modifications, MEP works, custom joinery, flooring, lighting design, and final finishing. We managed the entire project from concept to handover, ensuring the highest standards of quality and on-time delivery — all while staying within budget.

Visionary turnkey fit-out and renova

13976493
I designed and built a fully responsive e-commerce website with seamless checkout flow, product filtering, and mobile-first optimization. I also integrated inventory management and payment gateways, resulting in a 40% increase in online sales within the first month.

E-commerce website redesign for a bo

I designed and built a fully responsive e-commerce website with seamless checkout flow, product filtering, and mobile-first optimization. I also integrated inventory management and payment gateways, resulting in a 40% increase in online sales within the first month.

E-commerce website redesign for a bo

I designed and built a fully responsive e-commerce website with seamless checkout flow, product filtering, and mobile-first optimization. I also integrated inventory management and payment gateways, resulting in a 40% increase in online sales within the first month.

E-commerce website redesign for a bo

13976482
Designed and developed a visually immersive sci-fi themed landing page featuring interactive animations, responsive layouts, and modern UI components. Optimized the website for performance, cross-browser compatibility, and seamless user experience across desktop and mobile devices.

Futuristic Sci-Fi Landing Page

Designed and developed a visually immersive sci-fi themed landing page featuring interactive animations, responsive layouts, and modern UI components. Optimized the website for performance, cross-browser compatibility, and seamless user experience across desktop and mobile devices.

Futuristic Sci-Fi Landing Page

14116442
Describe the work you completed Built Saffron, a recipe manager so cooks can save, edit, and cook from their favorite recipes on phone or web without ads or clutter. The mobile app lets users: - Import a recipe from any website (title, photo, ingredients, steps, cook time, and source) - Switch between Intro, Ingredients, and Steps while cooking - Edit ingredients, steps, notes, and cook times on the phone - Link one recipe inside another for nested dishes (for example, a sauce used in noodles) - Search by recipe name, ingredient, or author - Organize recipes into cookbooks with custom sections - Plan meals and generate grocery lists - Sync recipes in the cloud across iOS, Android, and the website The UI is clean and kitchen-friendly: large readable type, photo-led recipe cards, and a focused cook mode so users can follow a dish with one hand.

Saffron Recipe App - iOS, Android

14132354
I designed and built the website for Moj Lab, a private clinic and laboratory chain in Montenegro. The site covers laboratory testing, a polyclinic, day surgery, pediatrics, gynecology and IVF, and radiology across nine cities, including Podgorica, Budva, Cetinje, and Kotor. The homepage opens with a full-width hero (“Moj Lab brinе o meni”), then service highlights, a doctor-visit announcements carousel, news and promotions, an about section, careers, a patient survey, and a footer with locations plus a booking call to action. Inner pages cover each department, doctors, locations, and appointment booking. I built it in Webflow as a responsive multi-page site: a calm green medical look, clear navigation, and content patients can scan quickly on desktop and mobile.

Professional Clinic Website Build

14077794
Built a full-stack science learning platform for middle school (Grades 6–8) from foundation through launch. Delivered role-based auth (student, teacher, admin), a student dashboard with Science HQ missions and quizzes, a Discovery Scan diagnostic with topic mastery and lesson recommendations, and teacher Mission Control for classes, roster, lesson assignments, progress tracking, and CSV export. Also built an admin CMS for units, lessons, assessments, and image uploads, plus user/class management. Designed a modern glass UI, deployed on Vercel, and integrated Supabase (PostgreSQL, RLS, storage). Client approved the MVP and continued with revisions and long-term collaboration.

Full-stack Science Learning Platform

Built a full-stack science learning platform for middle school (Grades 6–8) from foundation through launch. Delivered role-based auth (student, teacher, admin), a student dashboard with Science HQ missions and quizzes, a Discovery Scan diagnostic with topic mastery and lesson recommendations, and teacher Mission Control for classes, roster, lesson assignments, progress tracking, and CSV export. Also built an admin CMS for units, lessons, assessments, and image uploads, plus user/class management. Designed a modern glass UI, deployed on Vercel, and integrated Supabase (PostgreSQL, RLS, storage). Client approved the MVP and continued with revisions and long-term collaboration.

Full-stack Science Learning Platform

Built a full-stack science learning platform for middle school (Grades 6–8) from foundation through launch. Delivered role-based auth (student, teacher, admin), a student dashboard with Science HQ missions and quizzes, a Discovery Scan diagnostic with topic mastery and lesson recommendations, and teacher Mission Control for classes, roster, lesson assignments, progress tracking, and CSV export. Also built an admin CMS for units, lessons, assessments, and image uploads, plus user/class management. Designed a modern glass UI, deployed on Vercel, and integrated Supabase (PostgreSQL, RLS, storage). Client approved the MVP and continued with revisions and long-term collaboration.

Full-stack Science Learning Platform

Built a full-stack science learning platform for middle school (Grades 6–8) from foundation through launch. Delivered role-based auth (student, teacher, admin), a student dashboard with Science HQ missions and quizzes, a Discovery Scan diagnostic with topic mastery and lesson recommendations, and teacher Mission Control for classes, roster, lesson assignments, progress tracking, and CSV export. Also built an admin CMS for units, lessons, assessments, and image uploads, plus user/class management. Designed a modern glass UI, deployed on Vercel, and integrated Supabase (PostgreSQL, RLS, storage). Client approved the MVP and continued with revisions and long-term collaboration.

Full-stack Science Learning Platform

Built a full-stack science learning platform for middle school (Grades 6–8) from foundation through launch. Delivered role-based auth (student, teacher, admin), a student dashboard with Science HQ missions and quizzes, a Discovery Scan diagnostic with topic mastery and lesson recommendations, and teacher Mission Control for classes, roster, lesson assignments, progress tracking, and CSV export. Also built an admin CMS for units, lessons, assessments, and image uploads, plus user/class management. Designed a modern glass UI, deployed on Vercel, and integrated Supabase (PostgreSQL, RLS, storage). Client approved the MVP and continued with revisions and long-term collaboration.

Full-stack Science Learning Platform

Built a full-stack science learning platform for middle school (Grades 6–8) from foundation through launch. Delivered role-based auth (student, teacher, admin), a student dashboard with Science HQ missions and quizzes, a Discovery Scan diagnostic with topic mastery and lesson recommendations, and teacher Mission Control for classes, roster, lesson assignments, progress tracking, and CSV export. Also built an admin CMS for units, lessons, assessments, and image uploads, plus user/class management. Designed a modern glass UI, deployed on Vercel, and integrated Supabase (PostgreSQL, RLS, storage). Client approved the MVP and continued with revisions and long-term collaboration.

Full-stack Science Learning Platform

Built a full-stack science learning platform for middle school (Grades 6–8) from foundation through launch. Delivered role-based auth (student, teacher, admin), a student dashboard with Science HQ missions and quizzes, a Discovery Scan diagnostic with topic mastery and lesson recommendations, and teacher Mission Control for classes, roster, lesson assignments, progress tracking, and CSV export. Also built an admin CMS for units, lessons, assessments, and image uploads, plus user/class management. Designed a modern glass UI, deployed on Vercel, and integrated Supabase (PostgreSQL, RLS, storage). Client approved the MVP and continued with revisions and long-term collaboration.

Full-stack Science Learning Platform

13976502
We delivered a complete turnkey renovation and fit-out for a luxury residential villa in Abu Dhabi. Our scope included structural modifications, MEP works, custom joinery, flooring, lighting design, and final finishing. We managed the entire project from concept to handover, ensuring the highest standards of quality and on-time delivery — all while staying within budget.

Visionary turnkey fit-out and renova

13976493
I designed and built a fully responsive e-commerce website with seamless checkout flow, product filtering, and mobile-first optimization. I also integrated inventory management and payment gateways, resulting in a 40% increase in online sales within the first month.

E-commerce website redesign for a bo

I designed and built a fully responsive e-commerce website with seamless checkout flow, product filtering, and mobile-first optimization. I also integrated inventory management and payment gateways, resulting in a 40% increase in online sales within the first month.

E-commerce website redesign for a bo

I designed and built a fully responsive e-commerce website with seamless checkout flow, product filtering, and mobile-first optimization. I also integrated inventory management and payment gateways, resulting in a 40% increase in online sales within the first month.

E-commerce website redesign for a bo

13976482
Designed and developed a visually immersive sci-fi themed landing page featuring interactive animations, responsive layouts, and modern UI components. Optimized the website for performance, cross-browser compatibility, and seamless user experience across desktop and mobile devices.

Futuristic Sci-Fi Landing Page

Designed and developed a visually immersive sci-fi themed landing page featuring interactive animations, responsive layouts, and modern UI components. Optimized the website for performance, cross-browser compatibility, and seamless user experience across desktop and mobile devices.

Futuristic Sci-Fi Landing Page

5.0 · 6 Reviews
6 Reviews
User Avatar
Flag of CANADA

Kevin

5.0

$50 CAD

3 hours ago

Update Online Order Form Fields and Admin page

Quick and great work.

PHP
JavaScript
CSS
MySQL
HTML

+5 more

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Flag of UNITED STATES

Marc-Anthony

5.0

$50 USD

4 days ago

Telephony Schematic & Firmware Development

This dude gave me a whole pile of advice before even diving into the project. It turns out my project wasn't even ready for production! He gave me incredibly insightful, detailed advice on how to correct everything to get it ready for showtime. Super grateful and looking forward to working with you in the future.

C Programming
Electronics
Microcontroller
Electrical Engineering
PCB Layout

+5 more

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Flag of UNITED STATES

Tyrone

5.0

$250 USD

13 days ago

Finalize Squarespace Services Store

Opeyemi is phenomenal! He took my ideas, understood my vision, and brought them to life beyond my expectations. He was extremely responsive, professional, and went above and beyond to troubleshoot and resolve some challenging issues along the way. His attention to detail, patience, and commitment to getting the job done right truly stood out. He is skilled, dependable, and genuinely committed to delivering exceptional results. Hire this man, Don't look back you will not regret it!

PHP
Website Design
eCommerce
HTML
Squarespace

+3 more

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Flag of PHILIPPINES

Jovie

5.0

$50 USD

18 days ago

Small Apache Flex Add-On for Dental Clinic Website: $50 (1 Day)

Fast, clean work on the Flex add-on. Everything worked as requested. Great communication. Highly recommended!!!

PHP
JavaScript
Flex
PostgreSQL
Git

+5 more

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Flag of UNITED STATES

William

5.0

$250 USD

19 days ago

Convert Form Boxes to Visio

Opeyemi is easy to work with. He is a true professional. He submitted the work ahead of time. I would hire Opeyemi again. NICE WORK!!!!

Graphic Design
PDF
Microsoft Office
Microsoft Visio

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