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I am a detail-oriented and curious Full Stack Developer with a passion for building scalable and secure applications. I have strong expertise in JavaScript, TypeScript, and modern web technologies such as React, Node.js, and Express. I enjoy solving real-world problems by designing both frontend and backend architectures that are maintainable and performant. I thrive across the full software development lifecycle—from planning and API design to deployment and monitoring. I am drawn to projects that require end-to-end ownership, critical thinking, and cross-functional collaboration. I am passionate about Linux and open-source, and I enjoy exploring system internals, performance optimization, and infrastructure-level debugging. My philosophy emphasizes clean code, modular architecture, and testable components. I stay committed to continuous learning, keeping up with trends in software engineering, cloud platforms, and DevOps practices, and I enjoy improving CI/CD pipelines and system observability.…I am a detail-oriented and curious Full Stack Developer with a passion for building scalable and secure applications. I have strong expertise in JavaScript, TypeScript, and modern web technologies such as React, Node.js, and Express. I enjoy solving real-world problems by designing both frontend and backend architectures that are maintainable and performant. I thrive across the full software development lifecycle—from planning and API design to deployment and monitoring. I am drawn to projects that require end-to-end ownership, critical thinking, and cross-functional collaboration. I am passionate about Linux and open-source, and I enjoy exploring system internals, performance optimization, and infrastructure-level debugging. My philosophy emphasizes clean code, modular architecture, and testable components. I stay committed to continuous learning, keeping up with trends in software engineering, cloud platforms, and DevOps practices, and I enjoy improving CI/CD pipelines and system observability.

Besim KARABIYIK

Full Stack Developer, Web Developer, Front-End Developer, +2

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I am a detail-oriented and curious Full Stack Developer with a passion for building scalable and secure applications. I have strong expertise in JavaScript, TypeScript, and modern web technologies such as React, Node.js, and Express. I enjoy solving real-world problems by designing both frontend and backend architectures that are maintainable and performant. I thrive across the full software development lifecycle—from planning and API design to deployment and monitoring. I am drawn to projects that require end-to-end ownership, critical thinking, and cross-functional collaboration. I am passionate about Linux and open-source, and I enjoy exploring system internals, performance optimization, and infrastructure-level debugging. My philosophy emphasizes clean code, modular architecture, and testable components. I stay committed to continuous learning, keeping up with trends in software engineering, cloud platforms, and DevOps practices, and I enjoy improving CI/CD pipelines and system observability.…I am a detail-oriented and curious Full Stack Developer with a passion for building scalable and secure applications. I have strong expertise in JavaScript, TypeScript, and modern web technologies such as React, Node.js, and Express. I enjoy solving real-world problems by designing both frontend and backend architectures that are maintainable and performant. I thrive across the full software development lifecycle—from planning and API design to deployment and monitoring. I am drawn to projects that require end-to-end ownership, critical thinking, and cross-functional collaboration. I am passionate about Linux and open-source, and I enjoy exploring system internals, performance optimization, and infrastructure-level debugging. My philosophy emphasizes clean code, modular architecture, and testable components. I stay committed to continuous learning, keeping up with trends in software engineering, cloud platforms, and DevOps practices, and I enjoy improving CI/CD pipelines and system observability.

Available to hire

I am a detail-oriented and curious Full Stack Developer with a passion for building scalable and secure applications. I have strong expertise in JavaScript, TypeScript, and modern web technologies such as React, Node.js, and Express. I enjoy solving real-world problems by designing both frontend and backend architectures that are maintainable and performant.

I thrive across the full software development lifecycle—from planning and API design to deployment and monitoring. I am drawn to projects that require end-to-end ownership, critical thinking, and cross-functional collaboration. I am passionate about Linux and open-source, and I enjoy exploring system internals, performance optimization, and infrastructure-level debugging. My philosophy emphasizes clean code, modular architecture, and testable components. I stay committed to continuous learning, keeping up with trends in software engineering, cloud platforms, and DevOps practices, and I enjoy improving CI/CD pipelines and system observability.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Work Experience

Full Stack Developer at Alternativkraft GmbH

February 1, 2023 - Present

Developed full-stack web applications from scratch for a migration consultancy company, including a custom CRM system and a private, closed-circuit social media platform for an association, using React on the front-end and Node.js with Express on the back-end. Designed responsive interfaces, built and optimized RESTful APIs to support CRM workflows, user management, content sharing, and real-time interactions. Implemented role-based access control, authentication, and authorization to ensure data privacy within the CRM and private social network. Collaborated with cross-functional teams; leveraged MongoDB for scalable data storage, JWT-based authentication for secure access, and WebSockets for real-time communication to ensure performance, scalability, and security.

QA Automation Engineer at Capgemini

September 1, 2020 - January 1, 2022

Designed and implemented automated testing frameworks for e-commerce and travel agency from scratch using Java, Selenium and RestAssured to ensure software quality and functionality for web applications, resulting in a 60% reduction in regression testing time. Integrated automated tests into the CI/CD pipeline using Jenkins, enabling early detection of defects and supporting continuous delivery objectives. Increased test automation coverage to 65%. Added Cucumber to the test framework instead of TestNG.