Sebastian's Posts
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How I can help you
I assist companies in building fast, reliable, and scalable web apps that drive their business. Key tasks include reducing tech debt by migrating legacy systems to modern stacks (React/Next.js), optimizing app performance for better user retention, and designing flexible frontend architectures.
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People I am looking for
My work begins with thorough analysis of business needs and project mockups to ensure problem-solving solutions. Then, I audit existing code or plan new frontend architecture, choosing state management, rendering strategy, and API integration. Quality standards are set before task segmentation and programming.
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Experience & Cases
Seeking partnerships with Prixey and Dac.digital.
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How to contact
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About myself
Successfully executed numerous complex web projects, primarily for agency clients like DAC.digital. Achievements include leading a system auction refactor to Next.js, boosting performance, and migrating a logistics platform from Angular to React, enhancing maintainability.
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Job Description
Open to exploring various opportunities in the tech industry, focusing on roles that leverage my skills in transforming legacy systems into efficient, modern applications. Interested in dynamic environments that encourage innovation and growth.
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How to contact
- 0Sebastian Kupś
Frontend Developer @Pirxey
is willing to share expertiseEfficient Web Solutions for Business Growth - 0
How I can help you
I start with a thorough analysis of business needs and project designs to ensure solutions meet client goals. Conduct code audits or plan new frontend architecture, selecting state management and rendering strategies. Set quality standards before task division and development.
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People I am looking for
Over 6 years in logistics, e-commerce, and corporate projects. Key achievements include migrating a large transport platform to React, refactoring an auction platform for performance, and modernizing a corporate Intranet.
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Experience & Cases
Seeking contacts with IT recruiters, headhunters, and HR partners for Mid/Senior Frontend roles. Open to connecting with CTOs, Engineering Managers, and Tech Leads expanding their teams.
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How to contact

