Petr Fidler is a senior PHP developer and pragmatic tech lead with over a decade of experience building user-focused web and microservice architectures, currently driving backend excellence at Media support and running his own consultancy. He pairs deep hands-on expertise in PHP (Nette, Symfony), testing and strict static analysis (PHPStan, ECS, Rector) with business skills in UX, SEO, CRO and product strategy, often leading user research and A/B testing to inform technical decisions. Petr has a track record of reducing bugs and improving maintainability through rigorous CI, refactoring and high-coverage tests, and has contributed notable backend improvements to the popular open-source Mautic project. Comfortable across AWS, Docker, databases and queues, he also advises on documentation, team development and project strategy—bridging engineering and business in remote or Prague-based roles.
10 years of coding experience
19 years of employment as a software developer
Engineer's Degree, Informatics, Engineer's Degree, Informatics at Česká zemědělská univerzita v Praze
High School, Electronics computers systems, High School, Electronics computers systems at SPŠE v Úžlabině
Mautic: Open Source Marketing Automation Software.
Role in this project:
Back-end Developer
Contributions:392 commits, 70 PRs, 40 pushes in 1 year 5 months
Contributions summary:Petr's contributions primarily focus on back-end development for the Mautic marketing automation platform. They implemented a new campaign action to update the contact owner, including changes to the database and the addition of form types. The user also made code style fixes and addressed typos, improving the code quality and functionality of the application. This involved modifying several files, demonstrating a solid understanding of the project's architecture and codebase.
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