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I'm a full-stack web developer with 10+ years of experience modernizing legacy systems and improving frontend performance. I focus on developer experience, code quality, and maintainable architectures. I enjoy building clean, efficient solutions that make both users and developers happier, and I thrive in collaborative and fast-paced environments.…

Martin Haviar

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

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I'm a full-stack web developer with 10+ years of experience modernizing legacy systems and improving frontend performance. I focus on developer experience, code quality, and maintainable architectures. I enjoy building clean, efficient solutions that make both users and developers happier, and I thrive in collaborative and fast-paced environments.…

Available to hire

I’m a full-stack web developer with 10+ years of experience modernizing legacy systems and improving frontend performance. I focus on developer experience, code quality, and maintainable architectures.

I enjoy building clean, efficient solutions that make both users and developers happier, and I thrive in collaborative and fast-paced environments.

Skills

Experience Level

Expert

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Work Experience

Fullstack Developer (Contract) at Orange a.s. Bratislava

March 1, 2022 - November 14, 2025

Responsibilities included extending a legacy Typo3 CMS with new tooling and integrations to improve maintainability and stability; built a custom form builder and integrated Bloomreach/Exponea A/B testing for content experimentation and targeted content delivery; developed a modular Svelte component library to unify frontend design and accelerate content delivery; improved frontend performance by up to 10% overall and up to 80% on key pages as part of the Eco Challenge initiative; streamlined deployment with Jenkins and CI/CD pipelines to reduce manual steps and release time.

Trainee at Orange a.s. Bratislava

February 1, 2022 - February 1, 2022

Developed automated end-to-end tests using Java, Selenium, and Robot Framework to validate forms and checkout processes; built and containerized testing tools with Docker and OpenShift; configured CI/CD pipelines in GitLab and Jenkins; assisted in developing internal web applications using React.js and a Laravel backend.

Intern at GFXpulse

July 1, 2018 - July 1, 2018

Built new features and maintained a web-based ERP client application.