Andrei Sestac

Full-Stack Engineering & SaaS Development
I build scalable, secure, and production-ready web applications from scratch using modern TypeScript frameworks. I focus on clean architecture, type safety, and efficient data flow to ensure your application can scale as your business grows.

Core Technologies: Next.js, React, TypeScript, Tailwind CSS
State Management & Logic: Modern ES6+, React Context API, Zustand
Capabilities: Clean-code implementation, seamless UI/UX execution, responsive mobile-first layouts, and cross-browser optimization.

Database Architecture & Backend-as-a-Service (BaaS)
I design and implement efficient data models, robust authentication flows, and real-time backend functionality without the overhead of massive legacy infrastructures.
Core Technologies: Supabase, PostgreSQL
Capabilities: Database schema design, secure user authentication, row-level security (RLS) implementation, real-time data syncing, and API design (RESTful integrations).

E-Commerce & Headless WordPress Solutions
I bridge the gap between traditional content management and modern web performance. Whether you need a highly optimized WooCommerce storefront or a cutting-edge headless CMS setup, I build fast, secure, and easily maintainable systems.
Core Technologies: WordPress, WooCommerce, Headless WordPress + Next.js
Capabilities: Custom WooCommerce development, custom block/theme building, database optimization, plugin integration, and migrating traditional WordPress sites to high-performance decoupled frontends.

Application Optimization & Refactoring
If you have an existing application that is running slow, prone to bugs, or hard to maintain, I can audit and refactor the codebase to meet modern development standards.
Capabilities: Performance optimization (speed, Core Web Vitals), TypeScript migration, component abstraction for reusability, and cleaning up technical debt to streamline future feature updates.