Olivér Jankó

I’m a versatile backend and full stack developer with approximately 5 years of hands-on software development experience, including more than 2 years in employed roles, freelance development, and independent business ventures. I focus on building reliable backend systems, AI-powered solutions, APIs, and business-oriented platforms from planning through deployment.

I specialize in PHP, JavaScript, and Python, with experience in Symfony, Laravel, FastAPI, REST APIs, MySQL, Docker, GitHub Actions, GitLab CI/CD, and deployment automation. I have developed custom web applications, backend services, data-processing workflows, and AI-driven features such as intelligent search, ranking, text analysis, automation, and third-party AI integrations.

Across my work, I have prioritized performance, maintainability, and correctness by optimizing database queries, structuring scalable backend logic, and maintaining data integrity in business-critical applications. I also deliver frontend-ready solutions using HTML5, CSS3, SCSS, JavaScript, jQuery, Bootstrap, Twig, and npm.

My AI development experience includes Python-based data pipelines, API integrations, natural language processing, automated content analysis, ranking systems, prompt-based workflows, and the integration of large language models into web platforms. I am comfortable connecting AI functionality to production backend systems and deploying complete solutions with Docker and CI/CD workflows.

I also worked as a Telecommunications Site Engineer, managing deployment and maintenance across multiple sites, coordinating with cross-functional teams, and troubleshooting technical issues to ensure stable and reliable infrastructure. This experience strengthened my problem-solving, communication, and deployment skills in real operational environments.