Marina S.

Full Stack Engineer | Full Stack Developer | AI Automation

Launching an MVP or improving an existing product? I help businesses turn ideas into working applications, modernize existing systems, and connect AI capabilities to real business workflows. As a senior full stack engineer and Wiregate co-founder, I combine technical planning with hands-on development. From React interfaces and backend services to AI integration, I focus on how each part supports your product and the people using it. 📩 Send me a short description of your product and the main challenge you want to solve. I’ll help identify a practical starting point. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🏆EXPERIENCE YOU CAN BUILD ON ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ✅ 15+ MVPs delivered, from idea to working product ✅ $500K+ earned on Upwork across 97 jobs ✅ 6,400+ hours worked on client projects ✅ 100% Job Success Score · Top Rated Plus Full stack developer for SaaS products, MVP development, and custom web applications. Full stack engineer for backend systems, frontend development, and software architecture. AI integration for existing applications, internal tools, and business workflow automation. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 💻 FULL STACK DEVELOPER SERVICES ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ▸ Full stack developer for React web applications and responsive interfaces. ▸ Full stack developer for Next.js applications and business platforms. ▸ Full stack developer for Node.js backend development and API development. ▸ Full stack developer for Python backend systems and business logic. ▸ Full stack developer for PHP applications and Laravel development. ▸ Full stack developer for SaaS development and startup MVP development. ▸ Full stack developer for internal tools and custom admin dashboards. ▸ Full stack developer for existing application development and API integration. Full stack developer React · Full stack developer Next.js · Full stack developer Node.js · Full stack developer Python · Full stack developer PHP · Full stack developer Laravel ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ⚙️ FULL STACK ENGINEER SERVICES ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ▸ Full stack engineer for application architecture and system design. ▸ Full stack engineer for frontend and backend integration. ▸ Full stack engineer for REST APIs and third-party integrations. ▸ Full stack engineer for PostgreSQL, MySQL, and MongoDB database design. ▸ Full stack engineer for code audits and technical debt assessment. ▸ Full stack engineer for legacy modernization and application refactoring. ▸ Full stack engineer for performance optimization and scaling. ▸ Full stack engineer for AWS deployment, Docker, and CI/CD. Full stack engineer React Node.js · Full stack engineer Python PHP · Full stack engineer SaaS · Full stack engineer backend systems · Full stack engineer web applications ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🤖 AI INTEGRATION & BUSINESS AUTOMATION ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ▸ AI integration for custom web applications and existing platforms. ▸ AI integration for SaaS products and startup MVPs. ▸ AI integration for internal tools and business dashboards. ▸ AI integration for workflow automation and data processing. ▸ AI integration through LLM APIs and third-party services. ▸ AI integration connecting custom AI agents with backend systems. ▸ AI integration with React and Next.js application interfaces. ▸ AI integration with Node.js and Python backend services. Full stack developer for AI integration · Full stack engineer for AI integration · AI integration development · AI integration services · Custom AI integration · API development for AI integration ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🛠️ FULL STACK DEVELOPER & FULL STACK ENGINEER TECH STACK ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ • Backend: Node.js, Python, PHP, Laravel, Express • Frontend: React, Next.js, JavaScript • Databases: PostgreSQL, MySQL, MongoDB • APIs: REST APIs, third-party integrations • DevOps: AWS, Docker, CI/CD Full stack developer services covering frontend development, backend development, and database integration. Full stack engineer services covering software architecture, system design, and production deployment. AI integration services connecting application interfaces, backend logic, and business data. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 📦 FULL STACK DEVELOPMENT BY PROJECT TYPE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ SaaS Products Full stack developer for SaaS application development. Full stack engineer for SaaS architecture and backend systems. AI integration for SaaS workflows. Startup MVPs Full stack developer for MVP development and product implementation. Full stack engineer for MVP architecture and API development. AI integration for AI-enabled product features. Internal Tools & Dashboards Full stack developer for admin panels and operational tools. Full stack engineer for business logic and database integration. AI integration for internal workflows.