
Macos B
Level 1
Full Stack Software Developer
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Expérience professionnelle
Full Stack Developer | API Integration Specialist
Freelance Web Designer • Indépendant
Mar 2026 - Present • 6 mos
As a Full Stack Developer and API Integration Specialist, I help businesses build reliable, scalable, and high performing web solutions that streamline operations and improve user experiences. My expertise covers backend engineering, custom web application development, REST API integration, third party service integration, workflow automation, and database design. I have worked on projects involving payment gateway integration, CRM synchronization, e-commerce automation, webhook implementation, authentication systems, and custom backend development for businesses across different industries. Throughout my freelance career, I have collaborated with startups, entrepreneurs, agencies, and growing businesses to solve technical challenges by connecting applications, automating repetitive workflows, and developing custom solutions tailored to their business goals. My experience includes integrating services such as Stripe, PayPal, Twilio, Shopify, WooCommerce, Wix, WordPress, Google APIs, OpenAI, and many other RESTful APIs to create seamless and efficient systems. Beyond API integration, I develop modern, responsive websites and web applications using industry best practices with a strong focus on security, performance, scalability, and maintainable code. Every project is approached with careful planning, clean architecture, thorough testing, and clear communication to ensure reliable, production ready solutions that meet client expectations. I believe successful development is not only about writing code it's about understanding business requirements and delivering solutions that save time, reduce manual work, improve efficiency, and support long term growth. My commitment is to provide high quality work, meet deadlines, and build lasting relationships through professionalism, transparency, and dependable technical expertise.
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olive_smit345

Nigeria
Excellent work! The Twilio SMS API integration was completed exactly as requested. Communication was great throughout the project, the code was clean, and everything worked perfectly after testing. Highly professional and easy to work with. I would definitely recommend this seller and will hire again for future API integration projects.
3 jours
Durée

API & Intégrations
Réponse du freelance

princea04

Royaume-Uni
Excellent work! Macos successfully integrated Stripe payments and subscriptions into my WordPress/PHP setup and connected everything with Firebase and Supabase. The webhook handling, payment/subscription synchronization, and cancellation functionality were completed as requested, and everything is working...
3 jours
Durée

API & Intégrations
Réponse du freelance

nathan_reed72

Brésil
I’m very happy with the final result. Macos did an excellent job bringing the 3D interactive concept to life in Webflow. The Three.js/WebGL and Spline elements were integrated really well, and the GSAP animations make the transitions and scrolling feel smooth and professional. I especially liked the...
2 jours
Durée

Webflow
Réponse du freelance

mark_p25

Nigeria
A fantastic experience from start to finish. The Twilio integration works perfectly, including SMS automation, IVR, voice calls, and A2P 10DLC setup. Professional, knowledgeable, and responsive. I'll definitely be working with William again on future projects.
3 jours
Durée

API & Intégrations
Réponse du freelance

mark_p25

Nigeria
Outstanding work! Macos delivered exactly what I needed. He successfully integrated the Twilio SMS API, IVR, bulk messaging, voice automation, and AI workflows. Communication was excellent throughout the project, and everything was delivered on time. Highly recommended for any Twilio or API integration work.
3 jours
Durée

API & Intégrations
Réponse du freelance