Mariia O.

I’m a Full-Stack Developer with several years of hands-on experience building web applications from scratch and bringing existing projects to a production-ready state. I build real products using AI-assisted low-code tools like Bolt, Lovable, and Replit, while keeping full control over architecture and code quality. I work across both frontend and backend, and I also handle deployment setup and DevOps tasks, including environment configuration, security basics, and monitoring (logs and alerts), to ensure applications are reliable, performant, and run smoothly in production. Selected work samples are available in the Portfolio section below, including SaaS platforms, AI-assisted web apps, payment flows, dashboards, and production-ready MVPs. 🔹 What I Offer: ✅ Full-Stack Development: Expertise in Node.js, React.js and Next.js to build modern, robust web applications. ✅ Deployment & Production Setup: Setting up deployments, environments, basic security, and monitoring (logs and alerts) to ensure applications run smoothly in production. ✅ API Development & Third-Party Integrations: RESTful API integrations and third-party services including Stripe, Google OAuth authentication, Zapier automations, and email marketing tools like Flodesk. ✅ Performance Optimization & Security: Implementing best practices for scalability, security, and stable behaviour in production environments. 🛠 Key Skills & Technologies: 🚀 Frontend: React.js, Next.js, JavaScript, Redux, Tailwind CSS, responsive UI, component-based design 🚀 Backend: Node.js, Express.js, REST APIs, API integrations, serverless functions 🚀 Databases: Supabase, Firebase, PostgreSQL, MongoDB 🚀 Deployment & DevOps: Deployment setup, environment configuration, security, monitoring (logs & alerts), webhooks 🚀 Tools & Platforms: Git, GitHub, Stripe, Supabase, Firebase, Zapier, Clerk 🚀 Low-Code: Bolt.new, Lovable.dev, Replit, Firebase Studio 💡 Why Work With Me? 🔹 Scalable Solutions: I build high-performance, secure, and scalable applications tailored to your business needs. 🔹 Low-Code & Full-Stack Expertise: I combine low-code platforms (Lovable, Bolt, Replit) with custom frontend and backend development to deliver fast without sacrificing quality. 🔹 Reliable & Transparent: You can expect clear communication and on-time project delivery with best practices in agile development. If you're looking for a skilled, reliable developer who can bring your vision to life, let’s connect and discuss your project! 📩 Let’s build something amazing together!