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in Ukraine

Thank you for visiting my profile. I hold a degree in web development and have worked in the field for over 10 years as a web developer. I'm a very detail-oriented person when it comes to design and development and also hardworking and responsible, especially with deadlines—working with Laravel, Angular, JavaScript, MySQL, PHP, OpenCart, and WordPress. Just check out my portfolio and let's work.

👋 Hi, I’m Oleksii - a Twilio expert with over 7 years of hands-on experience building scalable, real-time communication systems using the full Twilio stack: 📞 Programmable Voice / SMS, 🧠 TaskRouter & Flex, 🎛️ Studio, Functions, Conversations, Sync, Webhooks and more. I’ve successfully completed 120+ Twilio projects on Upwork, including: • Eliminating latency issues in phone calls 🔧 • Creating SMS marketing automation pipelines 📲 • Developing full-scale Flex dashboards with custom workflows 🧩 Clients describe me as: “Very skilled, excellent communicator, smart guy and a pleasure to deal with.” “Oleksii was very helpful and available :) We no longer have problems with latency during our phone calls.” 🛠 Whether you need help with: • Twilio Studio call flows • Complex webhook-based automation • TwiML, IVR, call forwarding setups • Integrating Twilio with CRMs or internal systems • Building voice/SMS logic in Node.js, Laravel, or Firebase environments …I’ve got you covered. Let’s bring your Twilio-powered solution to life 🚀 Feel free to invite me to your job or message me with questions.

🚀 𝗧𝗼𝗽 𝗥𝗮𝘁𝗲𝗱 𝗣𝗛𝗣 𝗟𝗮𝗿𝗮𝘃𝗲𝗹 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 · 𝟭𝟬𝟬% 𝗝𝗦𝗦 · 𝟭,𝟰𝟬𝟬+ 𝗵𝗿𝘀 · 𝟴 𝘆𝗿𝘀 𝗶𝗻 𝗽𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝗼𝗻 Platforms I build don't require rewrites in 18 months. They handle real operational complexity from day one. Click "𝗛𝗶𝗿𝗲" 𝗼𝗿 "𝗜𝗻𝘃𝗶𝘁𝗲" to work with a PHP Laravel Developer who owns the architecture, not just the tickets. 📍 Lifetime warranty on every feature - I fix what breaks on my side. No questions asked. 📍 PHP Developer and Laravel Developer. 8 years of production-grade PHP Laravel and Symfony delivery. 📍 Full Stack Developer PHP and Full Stack Developer Laravel - E-Commerce, ERP, Logistics SaaS for clients in the US, UK, and EU. 🫵 𝗪𝗛𝗔𝗧 𝗬𝗢𝗨 𝗚𝗘𝗧 ✔️ As a PHP Developer and Laravel Developer - multi-role SaaS, complex permission layers, API integrations that hold up under production load. ✔️ As a Full Stack Developer PHP and Full Stack Developer Laravel - end-to-end from Database Architecture and Back-End Development to Vue.js frontends. 30–40% faster delivery than split-role teams. ✔️ As a PHP Laravel Developer for E-Commerce - order pipelines, inventory modules, payment integration, ERP logic. Clean enough that the next developer won't hate you. ✔️ As a Full Stack Developer Laravel for Logistics SaaS - last-mile tracking, KPI dashboards, API integration, fund management. 25–35% lower operational overhead post-launch. 🔥 𝗔𝗖𝗛𝗜𝗘𝗩𝗘𝗠𝗘𝗡𝗧𝗦 ✔️ 8 years · 1,400+ hours · Top Rated as a PHP Laravel Developer - E-Commerce, ERP, Logistics SaaS, FinTech across US, UK, and EU. ✔️ 100% satisfaction as a Full Stack Developer PHP - lifetime warranty on every codebase. ✔️ 15+ systems as a Full Stack Developer Laravel and Laravel Developer - multi-role access, order pipelines, integrations, dashboards built for operators. ✔️ 90% faster order processing · 80% lower manager workload via Full Stack Developer Laravel ERP and workflow automation as a PHP Laravel Developer. ✔️ 5–8 weeks faster time-to-launch through clean Software Architecture & Design and Full Stack Developer PHP ownership from day one. 🚚 𝗪𝗛𝗘𝗥𝗘 𝗜 𝗗𝗘𝗟𝗜𝗩𝗘𝗥 ✔️ As a PHP Laravel Developer and PHP Developer for SaaS - multi-role platforms, AI-powered scoring, automated reporting. 15+ products, 25–40% lower support load. ✔️ As a Full Stack Developer PHP - Back-End Development, API Integration, Vue.js, PostgreSQL backends for high data volumes. ✔️ As a Full Stack Ecommerce and flutter laravel-ready Laravel Shopify developer with php react frontends - supply chain, selling automation, filtration. 30–45% better conversion. ✔️ As a Full Stack Developer Laravel for Web Application development - payment systems, CRMs, logistics API integration. Every connection documented and maintainable. ✔️ As a PHP Developer and PHP Laravel Developer - 6–18 month engagements, php laravel react and laravel vue upgrades, Full-Stack Development that scales. 🏆 𝗜𝗡𝗗𝗨𝗦𝗧𝗥𝗬 𝗩𝗘𝗥𝗧𝗜𝗖𝗔𝗟𝗦 ✔️ E-Commerce & mobile app developer platforms - As a Full Stack Developer PHP and PHP Laravel Developer: order tracking, payment, full stack seo-ready architecture, recommendations. ✔️ Logistics - As a Full Stack Developer Laravel and PHP Laravel Developer: last-mile tracking, KPI dashboards, full stack laravel ecommerce + full stack developer shopify integrations. ✔️ ERP & Operations - As a Full Stack Developer Laravel and PHP Developer: inventory, order management. 40–70% less manual work through clean Database Architecture. ✔️ FinTech - As a PHP Laravel Developer and PHP Developer: bank statement processing, AI debtor scoring, audit-ready data flows. ✔️ AI-Powered SaaS - As a Full Stack Developer PHP: AI scoring into production Laravel platforms. ⚒️ 𝗛𝗢𝗪 𝗜 𝗕𝗨𝗜𝗟𝗗 ✔️ As a PHP Laravel Developer - Laravel, Symfony, Custom PHP, PHP Script, CodeIgniter with PHPUnit coverage and Software Architecture & Design from day one. ✔️ As a Full Stack Developer PHP, wordpress developer and web developer-aware engineer - Vue.js, JavaScript, HTML, HTML5, CSS, CSS3, Bootstrap, Tailwind CSS, jQuery, React, WordPress where it fits. ✔️ As a Full Stack Developer Laravel for data systems - PostgreSQL, MySQL, SQL, Database Architecture, Redis, Docker. PHP MySQL and php symfony stacks for scale, Software Debugging, and Web Design. ✔️ As a Web Application and Web Development expert - REST API, API Integration, Git, Angular, Node.js, python developer tools, react developer workflows, Back-End Development, Shopify, Desktop Application, Full-Stack Development, Software Development. 📊 𝗔𝗧 𝗔 𝗚𝗟𝗔𝗡𝗖𝗘 ✔️ Full Stack Developer PHP · Full Stack Developer Laravel · 1,000+ hrs · 100% JSS. ✔️ 15+ production platforms · 8 years · US, UK, EU · 30+ hrs/week. 🔹 Clean, documented code your next developer will thank you for. 🔹 Lifetime warranty - I fix what breaks on my side, no questions asked. Hire a PHP Developer and Full Stack Developer PHP who delivers. 👉 𝗖𝗹𝗶𝗰𝗸 𝗠𝗲𝘀𝘀𝗮𝗴𝗲 - 𝗹𝗲𝘁'𝘀 𝘁𝗮𝗹𝗸.

I help businesses maintain and scale existing Laravel/PHP platforms and internal systems (15+ years in web development). Best fit: long-term development & technical ownership (3+ month engagements), not one-off tasks. Core areas: feature development, production support, performance optimization, refactoring, legacy modernization, API integrations. I work with a small in-house team (backend, frontend, QA) to provide reliable long-term support when needed. Recent relevant work: - Maintenance and modernization of legacy internal systems (stability, speed, technical debt reduction) - PIM / product data platforms managing 300,000+ SKUs with complex workflows - Complex multi-tenant SaaS platforms with admin dashboards, permissions, and background processing - AI-powered SaaS features (automation, intelligent search, data enrichment) - Enterprise integrations (Shopify, SAP, Salesforce, Stripe, internal APIs) Tech stack: PHP (Laravel/Symfony), Vue/React, SQL/MySQL/PostgreSQL/NoSQL, AWS, queues & background workers. Selected outcomes: - Page load time improved by 45% (2.2s → 1.2s) - API response time reduced from 300ms to under 150ms - Uptime improved to 99.99% for business-critical platforms - Automated test coverage increased to 90%+ Security & compliance awareness: encryption in transit/at rest, GDPR-ready systems, secure payment workflows (PCI principles). If you have an existing Laravel/PHP system that needs long-term ownership and steady development, let’s discuss your roadmap.

Over the last 7 years I have developed different information systems including Web sites using many technologies such as: PHP, MySQL, Javascript, HTML, CSS and many others. I have developed websites for WordPress, CMS Opencart, Joomla CMS and I have experience in developing modules, themes, in core management etc. Moreover, in a varying degree I deal with YII, YII2. I was using GIT. Good written skills and basic verbal skills in English.

N8N Automation Architect & Voice AI Builder with 7+ years of backend engineering and 1+ year with AI. I design and ship production-ready automation systems built around n8n and AI voice agents powered by Vapi — inbound/outbound calls, lead qualification, booking, and support that plug straight into your CRM. I specialize in building production-ready automation platforms, AI-powered workflows, and backend systems that reduce manual work, improve operations, and scale reliably. Unlike pure automation freelancers, I bring strong backend engineering experience — which means I don’t just connect tools, I build stable systems behind them. Why Clients Work With Me I combine backend development + workflow automation + AI integrations to build solutions that survive production. I work with startups, SaaS businesses, agencies, and operational teams that need: AI-powered workflow automation CRM & business process automation Payment & subscription systems SaaS backend development API integrations & webhooks AI agents / voice AI / document automation I focus on: scalability clean architecture secure integrations reliability automation that reduces real operational cost Core Expertise 🔧 AI Automation / n8n / Workflow Systems I design automation pipelines that replace manual business processes. Projects include: AI Lead Qualification & CRM Routing lead verification, enrichment, scoring, routing CRM → Slack → Email automation hubs notifications, alerts, approval flows Order & fulfillment automation Shopify / WooCommerce workflows Webhook-based integration platforms API-first automation layers Subscription & billing workflows retries, failed payments, alerts, churn prevention Internal ops automations status-based triggers, task flows, reporting 🤖 AI Agents / Voice AI / LLM Integrations I build AI-powered tools that connect directly into real workflows. Experience with: AI customer support bots FAQ assistants lead qualification bots AI email reply assistants voice AI integrations CRM-connected assistants AI document parsing workflows Tech & integrations: OpenAI API VAPI 11Labs LLM workflows retrieval-based assistants structured-output pipelines 🧱 Backend Engineering / SaaS Development My strongest technical foundation is backend systems. 7+ years working with PHP ecosystems, mainly building business/admin platforms. Experience includes: Laravel applications CodeIgniter systems multi-tenant SaaS admin panels RBAC / permissions API development auth & access control queue-based workflows file-processing services business logic engines workflow engines cron-based processing 💳 Stripe / Payments / Finance Automation Strong niche expertise in payment-heavy systems. I’ve worked on: Stripe subscription systems Webhooks & event handling failed-payment recovery dunning workflows fraud-safe checkout flows payment validation layers invoice/accounting exports DATEV-style exports recurring billing logic This is especially useful for SaaS and subscription businesses. ⚙️ Integrations & Infrastructure I build stable integrations, not fragile no-code chains. Experience with: REST APIs OAuth2 Webhooks JSON transformations CRM integrations third-party platforms Twilio-based flows Slack / Notion / Airtable Google Workspace APIs Supabase / PostgreSQL Docker-based deployments reverse proxy / SSL server setup queue scaling maintenance & reliability What I Build AI workflow automation systems SaaS backends CRM automation pipelines payment & subscription logic admin panels internal tools voice AI workflows AI-integrated customer support systems webhook orchestration layers secure file-processing pipelines lead generation & enrichment systems business process automation platforms What Clients Get ✔ Backend-first automation engineering ✔ Production-ready systems ✔ Clean architecture ✔ Scalable integrations ✔ Security-focused implementation ✔ Fast communication ✔ Long-term maintainability ✔ Strong business logic understanding ✔ Reliable post-launch support Best Fit Clients I work best with: SaaS businesses subscription platforms startups agencies CRM-heavy businesses payment-heavy products operational teams businesses replacing manual workflows with automation Technical Stack Backend: PHP, Laravel, CodeIgniter, Node.js Automation: n8n, Make, Webhooks, API orchestration AI: OpenAI API, VAPI, 11Labs, LLM integrations, AI workflows Payments: Stripe, subscriptions, invoices, retries Database: MySQL, PostgreSQL, Supabase Infra: Docker, SSL, reverse proxy, server deployments Integrations: Slack, Google Workspace, CRM systems, Twilio Keywords n8n Developer, AI Automation Engineer, Backend Engineer, Laravel Developer, Stripe Integration Expert, Workflow Automation Developer, API Integration Specialist, SaaS Backend Developer, CRM Automation, Webhook Development, AI Agent Development, VAPI Integration, OpenAI API, LLM Workflows, Subscription Billing Automation, Payment Automation, Business Process Automation