Calculator

Digitalization of complex engineering calculations for the steel industry. The project transformed cluttered and risky Excel spreadsheets into a robust, scalable B2B system. In steel structure manufacturing, every millimeter of weld and every second of labor matters — the system accurately transforms these variables into final pricing in real time.

The biggest challenge was the specificity of formulas, which precluded "out-of-the-box" solutions. I developed a custom extension over Symfony Expression Language that allows admins to define dynamic dependencies between cells, similar to Excel, but with the security and integrity of a database system. Thanks to Symfony UX Live Components, the user experience is lightning-fast — every change in production parameters is instantly reflected in the calculation without requiring a page reload, significantly accelerating the quote preparation process for end customers.