JAN CIMBÁL

Digital solutions s.r.o

May 2018 – Present

I developed custom information systems and web applications, conducting thorough analysis of clients’ businesses to design and implement technical solutions, including infrastructure and advanced applications. I collaborated closely with clients to understand their needs and deliver tailored solutions that optimally supported their business objectives.

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Developed a high-speed REST API for synchronizing large volumes of data from an external system, utilizing PostGIS for geospatial data processing. Ensured optimal performance, availability, and backward compatibility across hundreds of websites.

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Managed and maintained legacy applications across various technologies, including Drupal and Zend Framework. Integrated new technologies while providing continuous support to address evolving client needs.

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Led the development of a facial recognition-based worker attendance system for construction projects across multiple continents. Enabled accurate tracking of work hours and reliable operation in areas with limited internet connectivity, delivering payroll data based on daily attendance.

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Project references are available here: https://digital.cz/reference

Freelance developer

Mar 2018 – Present

I focused on minor adjustments and optimizations for various client's websites. My tasks included updating content, improving design, optimizing website performance, and managing data exports from systems. I also provided one-time technical support, helping to quickly resolve issues.

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2018-2020 - prepdplatit.cz

I’ve been responsible for developing and maintaining the client side of the subscription sales platform. I migrated the application to Symfony with Doctrine ORM, improved website performance, and implemented new features to enhance user experience. My role also involves remote collaboration with a team of developers, focusing on technical problem-solving.

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2018 - Prepay s.r.o.

Developed the company's presentation website according to a graphic design, focusing on both the visual aspects and functionality.

Blog Administration: Implemented an admin system for blog management using Sonata Admin.

Trainee, DaMi development s.r.o.

Mar 2017 – Sep 2017

As part of the trainee program, I gained practical experience in web application development using the Yii2 framework. I learned how to implement data validation, efficiently display data using components (e.g., GridView, ListView), and work with databases using Active Record to ensure proper data structure.