Hi! 👋,
I'm Jonatan Kruszewski

I specialize in building scalable, maintainable front-end solutions that work seamlessly—without the tech debt nightmare.

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Years of Experience

About Me 👋

Hi! I’m Jonatan—a senior front-end developer who loves building things that actually work and don’t break the moment you look away.

My Expertise ⚛️

I specialize in React, Redux, TypeScript, and scalable architectures, making sure everything runs smoothly and stays maintainable.

Experience 🏗️

I've worked on large-scale applications, mentored developers, and helped teams clean up messy codebases. I write clean, efficient code that keeps projects scalable instead of turning into tech debt.

Community & Writing ✍️

I contribute to Stack Overflow, write about development, and stay updated with the latest in tech.

Communication is key 🤝

If you need someone who can get things done, solve real problems, and improve your codebase, let's connect!

Latest Publications

Certifications

Why Hire a Certified Developer?

Anyone can write code, but not everyone writes scalable, maintainable, and high-quality code.

Certifications go beyond badges; they're proof that an external authority has reviewed, tested, and validated both knowledge and skills.

When you hire a certified developer, you're not just trusting what they say — you're trusting what they've proven.

Let's Connect

I’m open to new projects and collaborations. If you're looking for a developer or have a relevant opportunity, please feel free to reach out. I’ll get back to you as soon as possible.

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