Mateusz User
@mateuszuser4
Frontend Developer at XTM International who developed a real-time text editor for linguists in a translation management system.
PolandWhat I'm looking for
At XTMInternational, I developed core modules for a Translation Management System, including a complex real-time text editor that serves as the primary workspace for linguists. I also co-developed a React component library used across the system’s applications.
I contributed to migrating legacy JavaScript and AngularJS applications to React, implemented accessibility improvements, and wrote and maintained tests. Through personal projects such as DentWise, Luma Studio, and Northwind, I’m expanding into frontend-focused full-stack development.
Experience
Work history, roles, and key accomplishments
Software Engineer
XTM International
Aug 2024 - Jul 2026 (1 year 11 months)
Developed core modules of a large-scale Translation Management System, including a complex real-time text editor. Co-developed a React component library, implemented WCAG accessibility improvements, and wrote unit and integration tests.
Frontend Developer
XTM International
Jan 2017 - Jul 2024 (7 years 6 months)
Developed TMS application modules in JavaScript/jQuery and AngularJS, later in React and TypeScript. Contributed to migration of legacy applications to React, wrote tests, and maintained Jenkins pipelines.
Junior Frontend Developer
VoidEntity
May 2016 - Dec 2016 (7 months)
Designed, developed and deployed websites and web applications on the WordPress CMS, delivering client-specific solutions.
Education
Degrees, certifications, and relevant coursework
Claude Academy
Claude 101, Artificial Intelligence
2026 - 2026
Completed Claude 101 certification in 2026.
KnowBe4
Cybersecurity, GDPR/PII, Secure AI Usage & Corporate Ethics, Cybersecurity
2022 - 2026
Completed cybersecurity, GDPR/PII, secure AI usage, and corporate ethics training from 2022 to 2026.
Scrum Fundamentals Certified
Scrum Fundamentals Certified, Project Management
2023 - 2023
Earned Scrum Fundamentals certification in 2023.
Poznań University of Physical Education
Master of Physiotherapy, Physiotherapy
Master of Physiotherapy degree from Poznań University of Physical Education.
Availability
Location
PolandAuthorized to work in
Salary expectations
Social media
Job categories
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