Andriy R.

Full Stack Developer | API | AI | SaaS | Platforms

I'm a senior developer and architect, an expert in building robust SaaS and fintech platforms. I leverage AI for innovative solutions and efficient software development, focusing on backend and API integration. 🤝 I partner with businesses to architect and build custom software applications and websites. My focus is on solving complex challenges and delivering scalable, high-performance web platforms that drive growth and market presence, often for a specific production environment. I'm an engineer with experience in data systems. 🛠️ I use modern web technologies like Python, Node.js, JavaScript, PHP (Laravel), Golang for robust backend development and REST API integration. I'm an engineer and integrator, building full-stack web applications, often with PostgreSQL, MySQL, Oracle, and cloud platforms like Amazon AWS or Azure. I handle technical development, automation, and payment system setup, including complex back-end and back end solutions, ensuring seamless API integrations. ✨ I offer comprehensive software development services, specializing as a software architect for fintech, real estate, and multi-tenant platforms. My goal is transforming your ideas into secure, efficient, and user-friendly web applications, including dashboards, mobile apps, and powerful analytics tools. I also handle API setup, migration, real-time data tracking, authentication, login, and conversion optimization for various platforms like Shopify, Zoho (including Deluge), Frappe, or custom CRM systems. I can integrate with Meta, Twilio, Airtable, Workday, SuccessFactors, GoHighLevel, and even build AI chatbot agents using OpenAI, Claude, or LLM RAG pipelines for streaming data, IoT solutions, and books/inventory management. 🧠 With years of experience in building niche e-commerce, booking, and ERP systems, I've learned to deeply understand business logic. I architect resilient platforms, continuously refining my approach to deliver maintainable code, fixing bugs, and resolving any issue for long-term project success. I also incorporate client review feedback and manage data for beverage wholesaler inventory systems. ✅ As an expert developer and specialist, I help companies launch their AI-powered SaaS products and manage their projects effectively. I provide custom software solutions and enhancements that place them ahead in the market, including robust CRM integrations. 👍 I'm a pro problem-solver and consultant, always focused on understanding your need and delivering results that exceed expectations for every small client and team. I'm available for freelance or remote contract work, and value long-term cooperation. Let's connect to discuss your next project! Let’s unlock the next level of your product together. Tags: developer, backend development, API integration, senior developer, engineer, AI, Python, Node.js, AI-powered SaaS products, AI chatbot agents, software development, web platforms, SaaS platforms, full-stack web applications, cloud platforms, scalable web platforms, high-performance web platforms, secure web applications, user-friendly web applications, fintech, real estate, multi-tenant platforms, mobile apps, e-commerce systems, booking systems, ERP systems, Laravel, data systems, Java, automation, specialist, software architect, Spring Boot, custom software solutions, .NET, REST API integration, Shopify, Meta, Golang, FastAPI, production environment, PHP, CRM integrations, fixing bugs, LLM RAG pipelines, Amazon AWS, real-time data tracking, PostgreSQL, issue resolution, payment system setup, API setup, migration, dashboard, back-end solutions, website development, long-term cooperation, analytics tools, custom software applications, Oracle, Airtable, Twilio, inventory management, conversion optimization, authentication, login, freelance, Workday, MySQL, IoT solutions, SuccessFactors Last update: Aug 31, 2026