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. I work remotely at Altitude-Sports, mainly focused on frontend development with Next.js.
Over the years, I've worked on a variety of projects in different roles—both as part of a team and as a freelancer. I also had the chance to teach ReactJS at EducaciónIT, which I really enjoyed because I love sharing what I learn.
Even though I'm currently more focused on frontend, I also have backend experience using technologies like Java, Rails, and Django. I'm especially interested in building smooth user experiences, and from time to time I like digging into web app vulnerabilities and learning more about security.
Outside of work, I enjoy reading, spending time outdoors, and having mate with my family. One of my favorite side projects is Tikijuegos, a game I built for my son using React and drag & drop. You can check that out (and more) on my GitHub, or learn more about my experience on LinkedIn.
Tech 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
Altitude-Sports
I'm building a new e-commerce storefront from scratch using Next.js. My role involves 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.
HealthyWage
I led the frontend migration to Vue.js, building pixel-perfect UIs directly from AdobeXD designs. My work focused on high-impact areas like landing pages, funnels, and checkout flows—key pieces to improve the overall user experience and boost conversion rates. I collaborated closely with backend and design teams to ensure smooth integration and consistency across the platform.
Ministerio de Modernización (Argentina)
Worked on a high-performance React application built with TypeScript, focused on visualizing large volumes of public data through interactive charts and dashboards. My contributions included optimizing rendering performance, managing complex state with Redux, and ensuring reliability with unit tests. While the app was developed collaboratively, I was fully dedicated to the frontend, with a strong focus on data-heavy UI and usability.
Blog Posts
Let's Work Together
Have a project in mind? I'm currently available for freelance work and consulting.