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I’m Jacek Wiącek, a Frontend Developer experienced in building scalable web applications with React, TypeScript, and modern JavaScript tooling. I deeply care about code quality and delivering smooth user experiences across platforms. I thrive in teams that value knowledge-sharing and technical excellence. I’m eager to contribute to large-scale, data-driven environments and am actively expanding my skills into backend development. In my spare time, I enjoy guitar playing and other musical instruments as well as exploring psychological and self-development books.…I’m Jacek Wiącek, a Frontend Developer experienced in building scalable web applications with React, TypeScript, and modern JavaScript tooling. I deeply care about code quality and delivering smooth user experiences across platforms. I thrive in teams that value knowledge-sharing and technical excellence. I’m eager to contribute to large-scale, data-driven environments and am actively expanding my skills into backend development. In my spare time, I enjoy guitar playing and other musical instruments as well as exploring psychological and self-development books.

Jacek Wiącek

Front-End Developer, Web Developer, Programmer, +2

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I’m Jacek Wiącek, a Frontend Developer experienced in building scalable web applications with React, TypeScript, and modern JavaScript tooling. I deeply care about code quality and delivering smooth user experiences across platforms. I thrive in teams that value knowledge-sharing and technical excellence. I’m eager to contribute to large-scale, data-driven environments and am actively expanding my skills into backend development. In my spare time, I enjoy guitar playing and other musical instruments as well as exploring psychological and self-development books.…I’m Jacek Wiącek, a Frontend Developer experienced in building scalable web applications with React, TypeScript, and modern JavaScript tooling. I deeply care about code quality and delivering smooth user experiences across platforms. I thrive in teams that value knowledge-sharing and technical excellence. I’m eager to contribute to large-scale, data-driven environments and am actively expanding my skills into backend development. In my spare time, I enjoy guitar playing and other musical instruments as well as exploring psychological and self-development books.

Available to hire

I’m Jacek Wiącek, a Frontend Developer experienced in building scalable web applications with React, TypeScript, and modern JavaScript tooling. I deeply care about code quality and delivering smooth user experiences across platforms. I thrive in teams that value knowledge-sharing and technical excellence.

I’m eager to contribute to large-scale, data-driven environments and am actively expanding my skills into backend development. In my spare time, I enjoy guitar playing and other musical instruments as well as exploring psychological and self-development books.

Skills

Experience Level

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Advanced

German

Beginner

Polish

Fluent

Work Experience

Frontend Developer at Publicis Le Pont, Warsaw

July 1, 2025 - August 26, 2025

Developed a React application optimizing configuration processes, reducing time from 3 hours to under 30 minutes and minimizing errors. Created a core application module for backend compatibility, implemented automated image compression reducing file sizes by up to 65%. Worked using Scrum methodology to improve application performance and user experience. Debugged issues reported by QA and end users, developed a reusable responsive UI component library, onboarded new team members, and utilized GIT and JIRA for project collaboration and task tracking.

Account Manager at Symkom Sp. z.o.o, Warsaw

July 1, 2023 - August 26, 2025

Automated training organization and certificate generation using Google Apps Script, reducing manual input. Provided professional support and advice for engineering software (desktop and cloud), cooperated with foreign business partners, identified and analyzed customer needs, generated leads, and converted them into sales.

Tech-Sales Specialist at SOLIDEXPERT Polska Sp. z o.o. Sp.k., Warsaw

September 1, 2021 - August 26, 2025

Provided professional support and advice on engineering software (desktop and cloud). Cooperated with foreign business partners, identified customer needs, generated leads, converted them into sales, and delivered technical presentations of Solidworks software.

Mechanical Design Engineer at URSUS BUS S.A., Lublin

September 1, 2018 - August 26, 2025

Adapted urban bus structures for electric drives. Prepared component specifications (2D and 3D) with SolidWorks. Cooperated with suppliers for technical arrangements and developed new engineering solutions.

Mechanical Design Engineer at Vega, Jastków

September 1, 2018 - August 26, 2025

Comprehensive design of machines for the food industry. Prepared component specifications (2D and 3D documentation) using SolidWorks. Cooperated with suppliers for technical arrangements and supervised prototype construction.