Hire the Best PayPal Integration Specialists
in Ukraine

I help startups and growing businesses design, build, and scale 🚀 SaaS products, 🏪 marketplaces, 🛒 ecommerce platforms, 📱 mobile applications, and 💳 subscription-based businesses. With 10+ years of experience as a 💻 Full Stack Developer, 🏗️ Solution Architect, and 👨‍💼 Technical Lead, I deliver scalable products from MVP to production. My expertise covers SaaS development, marketplace platforms, subscription billing systems, payment infrastructure, API integrations, cloud-based applications, and business-critical payment flows. I don't just implement features — I help companies make technical decisions, define architecture, optimize billing processes, integrate payment systems, and launch products faster. ⚡ 🎯 Core Expertise ✅ Full Stack Development • ✅ SaaS Development • ✅ Marketplace Development • ✅ Ecommerce Development • ✅ Subscription Platforms • ✅ Subscription Billing • ✅ Payment Gateway Integration • ✅ Stripe Integration • ✅ PayPal Integration • ✅ Checkout Development • ✅ API Integration • ✅ Mobile App Development • ✅ React Development • ✅ Flutter Development • ✅ Firebase Development • ✅ Supabase Development • ✅ Technical Product Ownership • ✅ Solution Architecture 💳 Payment & Billing Expertise I specialize in building and optimizing payment systems for SaaS businesses, marketplaces, ecommerce stores, and mobile applications. 💰 Stripe Checkout • Stripe Elements • Stripe Payment Element • Stripe Billing • Stripe Subscriptions • Stripe Connect • Stripe Webhooks • Stripe Customer Portal • Stripe Payment Intents • Stripe Setup Intents • Stripe Invoicing • Stripe Tax • Stripe Payment Links • Stripe Radar • Stripe Identity • Stripe Connect Marketplace • Stripe Connect Payouts • Stripe Webhook Development • Stripe Webhook Troubleshooting • Stripe API Integration • Stripe Billing Automation • Stripe Subscription Management • Stripe Subscription Lifecycle Management • Stripe Checkout Optimization • Stripe Checkout Customization • Stripe Recurring Billing • Stripe SaaS Billing • Stripe Marketplace Payments • Stripe Vendor Payouts • Stripe Multi-Currency Payments • Stripe Upgrade & Downgrade Flows • Stripe Trial Management • Stripe Revenue Optimization • Stripe Fraud Prevention • Stripe Payment Security • Stripe Migration 💸 PayPal Integration • PayPal Checkout • PayPal API Integration • PayPal Subscriptions • PayPal Recurring Payments • PayPal Webhooks • PayPal Billing Agreements • PayPal Marketplace Payments 🔗 Payment Gateway Integration • Subscription Billing • Recurring Payments • Billing Automation • Customer Portal • Upgrade & Downgrade Flows • Trial Management • Multi-Currency Payments • Vendor Payouts • Marketplace Payments • Refund Automation • Payment Infrastructure 🚀 SaaS & Product Development I have extensive experience building SaaS platforms and subscription-based products. ☁️ SaaS MVP Development • SaaS Architecture • Multi-Tenant SaaS Applications • B2B SaaS Platforms • B2C SaaS Platforms • AI SaaS Products • SaaS Billing Systems • SaaS Payment Infrastructure • SaaS Subscription Management • SaaS Analytics & Reporting • SaaS Integrations • SaaS Scaling & Performance Optimization • SaaS Checkout Optimization • SaaS Revenue Optimization • Mobile SaaS Applications • SaaS Marketplace Platforms 🏪 Marketplace Expertise I help businesses build and scale marketplace platforms with automated payments and vendor management. 💳 Stripe Connect • Marketplace Payments • Vendor Payouts • Commission Systems • Multi-Vendor Platforms • Booking Platforms • Service Marketplaces • Product Marketplaces • Creator Platforms • Marketplace Billing Systems • Marketplace Checkout Flows • Marketplace Revenue Models 🧠 Technical Product Ownership I often work as a technical partner helping founders and business owners turn ideas into scalable products. 🏗️ Technical Product Ownership • Product Architecture Design • MVP Planning & Development • Startup Product Development • Technical Leadership • Solution Architecture • System Design • Product Roadmap Execution • Platform Scaling • Development Team Leadership • Business Requirements Analysis • Third-Party Integrations • Payment Infrastructure Design • SaaS Architecture Consulting 🛠️ Technologies Backend: PHP • Laravel • MySQL • Redis • Elasticsearch • Apache Solr Frontend: JavaScript • React • Vue.js Mobile: Flutter Backend as a Service: Firebase • Supabase Cloud & Infrastructure: AWS • S3 • CloudFront • Lambda • Docker 📈 Recent Project Experience 🚀 SaaS Billing & Subscription Platforms: Subscription Billing • Stripe Billing • Stripe Subscriptions • Checkout Optimization • Payment Gateway Integration • Recurring Billing • Subscription Lifecycle Management • Revenue Optimization 🏪 Marketplace Solutions: Stripe Connect • Marketplace Payments • Vendor Payouts • Commission Systems • Payment Infrastructure • Multi-Vendor Platforms 🛒 Ecommerce Platforms: Shopify Integrations • WooCommerce Integrations • Stripe Payments • PayPal Payments

Hi! I'm here to provide my knowledge and experience so you can benefit. For almost half of my life, I've been helping companies find and implement the best payment solutions, and payments are genuinely my passion. I've been working in this industry for 15 years, so I know everything about how payments are handled by different participants in the cycle - merchants, cardholders, payment providers, and banks. But I'm not a simple advisor. I have deep knowledge of how the payment system is built and works. I also have deep experience in: antifraud tools implementation dispute management software development and implementation payment routing and cascading PS: If you have read all my profile and still have doubts about hiring me, I give 20 minutes of consulting sessions to answer your questions.

Senior PHP Laravel Developer | 10+ Years Experience with Laravel (4–10), PHP, Vue.js, API Integrations Expert in PHP & Laravel-based development: scalable, secure, and high-performing apps Laravel + PHP are my core tools for building modern web solutions – from startups to enterprise PHP Laravel – my space 🔹 Backend: Laravel (4–10), PHP (OOP), MVC, RESTful APIs, Microservices with Laravel, Laravel Nova, Laravel Forge 🔹 Frontend: Vue.js with Laravel backend, JavaScript, jQuery, Backbone.js 🔹 Databases: MySQL optimized for Laravel, PostgreSQL with Laravel Eloquent, MongoDB, ElasticSearch 🔹 Cloud & DevOps: AWS (S3, SES, EC2, RDS) for Laravel hosting, Docker, Jenkins, CI/CD for Laravel deployments 🔹 Testing & Automation: Cypress, Laravel Dusk, Postman, WebdriverIO, JMeter, Selenium 🔹 CMS & E-commerce: OctoberCMS (Laravel-based), Shopify API, Laravel-integrated Stripe/PayPal solutions From complex Laravel backend systems to custom PHP integrations, I deliver optimized, secure, and scalable solutions. Let’s build something great with Laravel – message me now! 𝐔𝐩𝐝𝐚𝐭𝐞𝐝: April 8, 2025

I help businesses build, optimize, secure, automate, and maintain high-performance WordPress & WooCommerce websites that are reliable, scalable, and built for long-term growth. With 10+ years of experience, I specialize in custom WordPress and WooCommerce development, API integrations, business automation, performance optimization, server infrastructure, and solving complex technical challenges that standard themes and plugins can't. I work with business owners, agencies, and growing eCommerce companies to deliver production-ready solutions that reduce manual work, improve performance, and support long-term business growth. My focus is not just completing tasks, but building reliable systems that continue working as your business grows. 🌐 Website Development • Custom WordPress business websites • WooCommerce stores • Landing pages • Elementor websites • Website redesigns • Responsive development • Webflow, Wix & Shopify migrations to WordPress • Website maintenance & long-term support 🛒 WooCommerce Development • Custom WooCommerce stores • Custom checkout & cart functionality • Payment gateway integration (Stripe, PayPal, Authorize.Net) • Shipping & tax configuration • Customer accounts & order workflows • B2B pricing & approval systems • Product import & synchronization (CSV, XML, API, WP All Import) • WooCommerce troubleshooting & optimization ⚙️ Custom WordPress Development • Custom plugins • Custom themes • PHP development • Hooks & filters • ACF & Custom Post Types • Business logic & workflow automation • Bug fixing & troubleshooting • Plugin customization 🔗 API Integrations • REST API integrations • ERP & CRM integrations • Third-party API development • Webhooks • ShipStation integration • Telegram integrations • Payment gateway APIs • Custom business workflows 🤖 Business Automation • Telegram bots • WooCommerce automation • CRM automation • Order processing automation • Product synchronization • Scheduled tasks (WP-Cron) • API-driven workflows • Business process automation ⚡ Performance & Technical SEO • Core Web Vitals optimization • WooCommerce performance tuning • PHP optimization • Database optimization • Redis & caching • Technical SEO improvements • Google Search Console fixes • Schema implementation • Indexing & crawl issue fixes 🖥️ Server & Infrastructure • Ubuntu Linux • Docker • Nginx • MariaDB / MySQL • Redis • Cloudflare • SSL configuration • VPS deployment • Website & server migrations • Server optimization 🛡️ Security & Maintenance • WordPress security hardening • Malware cleanup • Cloudflare security configuration • Fail2Ban • Security headers • WordPress updates • Plugin & theme maintenance • Production troubleshooting • Long-term technical support 💼 Recent Project Experience • Maintaining a large WooCommerce store with 20,000+ products • Developing custom WooCommerce plugins and business workflows • Building B2B pricing, approval, and order automation systems • Implementing California compliance for WooCommerce checkout • Integrating Stripe, PayPal, Authorize.Net, ShipStation, and custom APIs • Automating product imports using CSV, XML, REST APIs, and WP All Import • Developing Telegram-integrated business workflows • Deploying WordPress on Docker-based VPS infrastructure with Nginx, Redis, MariaDB, SSL, and Cloudflare • Optimizing high-traffic WordPress and WooCommerce websites for performance and stability ✔ Why Clients Work With Me ✅ 10+ years of WordPress & WooCommerce experience ✅ Production WooCommerce stores with 20,000+ products ✅ Custom plugins & complex business logic ✅ API integrations & automation ✅ VPS, Docker & Cloudflare infrastructure ✅ Performance optimization & Core Web Vitals ✅ Security hardening & malware recovery ✅ Reliable long-term technical support 💡 I don't believe in temporary fixes. I identify the root cause, build scalable solutions, automate repetitive processes, and deliver clean, maintainable code that is easy to support and extend. Whether you need a custom WordPress website, WooCommerce development, plugin development, API integrations, performance optimization, server deployment, security improvements, or ongoing technical support, I deliver reliable, production-ready solutions focused on quality, stability, and long-term business success.

I help businesses fix, extend and scale WordPress and WooCommerce sites — not just build pages. Most of my work falls into one of these: – fixing slow, unstable or broken WordPress/WooCommerce sites – building custom WooCommerce logic: pricing rules, discounts, booking flows – integrating WordPress with CRMs, payment gateways and third-party APIs – optimizing performance for high-traffic or data-heavy sites If your project is more than "just build a website," I can help. WHAT I DO BEST - Custom WooCommerce logic: pricing, discounts, booking rules, checkout customization - API integrations: CRM, payment systems, automation tools - Performance optimization: database tuning, caching, fixing slow queries - Theme and plugin development: Avada, Elementor, Divi, ACF, custom PHP EXPERIENCE - 111 completed projects on Upwork - $70K+ earned on Upwork - 2,475+ hours worked - 100% Job Success score HOW I WORK I don't just execute tickets — I look at the underlying problem and suggest a better solution when one exists. Clients usually come to me when: - the site is slow or unstable - the logic is too complex for a typical WordPress developer - an integration isn't working correctly - a previous developer couldn't solve the issue If you need someone who can actually solve the problem, not just attempt it, let's talk.

Versatile PHP back-end developer with 20+ years of hands-on experience across web development, server administration, and DevOps. Expert in WordPress/WooCommerce, third-party API integrations (payment systems, CAPTCHA solvers, phone verification, Meta/Instagram APIs, crypto exchange APIs), high-load multi-threaded systems, SaaS products, parsers, and web security. Writes clean, documented code and navigates unfamiliar codebases quickly. Self-motivated, detail-oriented, and reliable in independent remote work. Open to long-term contracts.