09/07/2026 updated
100 % available
Full Stack Engineer | SaaS, MVP & AI Automation
Mykolaiv, Ukraine
Only remote
Bachelor of Science in Software EngineeringAbout me
I'm Anatolii, and I help startups and established companies transform ideas into production-ready SaaS platforms, AI-powered applications, and scalable web systems.
JavaScriptUser Experience (UX)Software as a ServiceLaravelNode.jsNext.jsScaled Agile FrameworkSolution ArchitectureTypeScriptReact.jsBackendFull Stack DevelopmentFront End Software DevelopmentNestJS
I specialize in building scalable SaaS applications from MVP to production-ready platforms, with a strong focus on performance, user experience, and long-term maintainability.
My work combines product thinking with technical execution, ensuring that what we build is not only functional but also engaging and aligned with business goals.
On the frontend, I develop high-performance applications using React and Next.js, focusing on fast load times, smooth user interactions, and app-like experiences rather than traditional page-based systems. I pay close attention to UX behavior, especially in platforms where engagement and retention are critical.
On the backend, I design and implement robust systems using Node.js and Laravel, including RESTful APIs, scalable architectures, and integrations with third-party services. I have experience handling complex data flows, user tracking, and systems that require flexibility for future growth.
I also work extensively with AI integrations, including building intelligent features such as chat-based assistants, workflow automation, and systems powered by retrieval-augmented generation. This includes structuring and leveraging large content bases to deliver contextual, accurate, and useful responses to users.
In addition, I focus on performance optimization and system architecture, ensuring that applications remain fast, stable, and scalable as usage grows. This includes database design, caching strategies, and efficient handling of large datasets and user activity.
Overall, I approach projects with a balance of technical depth and product strategy, helping transform ideas into platforms that users consistently return to.
Experience
Professional experience10+ years
Freelancer since2015
Languages
EnglishFluentRussianNative speakerUkrainianNative speaker
Project history
- Al-powered video editors save tens of thousands of hours and thousands of dollars for their clients by automating the video editing process
- Within two months, implemented a design using a modern JavaScript framework(Next.js, MUI) based solely on ideas
- Object-oriented backend code structure for Node.js, Express and MongoDB that is 100% compliant with industry and company standards
- Al-powered, 100% automated video-to-text implementation by Assembly Al
- The backend service will generate 3 or more different thumbnails, multi-ratio HD screens and save the video to Bunny CDN - cloud storage
- Built a scalable video streaming application using MongoDB, Express, React and Node.js with seamless third-party service integrations
- Reduced initial page load time by 35% through code splitting, lazy loading, and CDN optimization
- Increased user engagement by implementing responsive UI and realtime interaction features
- Optimized media delivery performance through CDN integration and caching strategies, reducing load times significantly
- Built RESTful APIs and handled third-party API integrations with proper error handling, retries, and rate limiting
- By designing different dashboards for each user role, the user experience is improved by up to 31%
- The analyzed data was delicately expressed in various types of graphs over 30 pages to give users a good experience
- Enhanced user experience by integrating real-time updates (e.g., watch progress, notifications) with WebSockets
- Optimized API data handling and UI states(loading, error, empty states), resulting in smoother user interactions