Independent Software Developer
I help businesses transform their ideas into robust, scalable software solutions that drive growth and efficiency.
About Me
Hey! 👋🏻 I'm Alejandro Sobko, a software developer based in Argentina.
Over the years, I've worked on a variety of projects in different roles — both as part of a team and as a freelancer. My last contribution was to Altitude-Sports (a leading outdoor gear e-commerce storefront) with Next.js. But most importantly, I am now focused on developing SyncroFitness, a software solution that I built and launched myself.
I also had the chance to teach ReactJS at EducaciĂłnIT, which I really enjoyed because I love sharing what I learn. I'm especially interested in building smooth user experiences.
Outside of work, I enjoy reading and spending time outdoors.
Main Stack
My Services
Full-stack development
End-to-end development of web applications with modern technologies, ensuring seamless user experiences and robust backend systems.
Full-stack web application development
API development and integration
E-commerce solutions
Content management systems
Technical Consulting
Strategic guidance on technology choices, architecture decisions, and implementation approaches tailored to your business goals.
Technology stack assessment and recommendations
Code reviews and quality assessment
Performance optimization
Technical team mentoring
Featured Projects
I am the founder and sole developer of SyncroFitness, a management SaaS for pilates and yoga studios. I designed, built, and continue to maintain the entire platform from scratch. It streamlines studio operations, class bookings, client scheduling, and subscription management. My work focuses on delivering a high-performance, responsive experience using Next.js and TypeScript, ensuring seamless day-to-day management for business owners and students alike.
I directly collaborated to build a new e-commerce storefront from scratch using Next.js. My role involved designing and developing pixel-perfect, high-performance interfaces, collaborating closely with design, marketing, and backend teams to ensure a smooth rollout and strong user experience. Throughout the project, I've worked on integrating key services like Algolia, Commercetools, and Contentful to create a seamless, dynamic shopping experience.
I led the end-to-end development of Decentralike, a crypto news and data portal built with Next.js. I was solely responsible for the entire project—from initial architecture and CMS setup to production deployment. The app integrates multiple crypto price APIs and renders interactive charts to visualize market data in real time. I also configured and connected a headless CMS to manage editorial content efficiently. My work focused on performance, SEO, and delivering a seamless user experience across the platform.
Blog Posts
Let's Work Together
Have a project in mind? I'm currently available for freelance work and consulting.