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I am an innovative Senior Frontend Engineer with over 10 years of experience in crafting scalable, high-performance web applications. My expertise lies in advanced JavaScript, React, and TypeScript, implementing solutions that greatly improve user engagement and reduce load times. I have a passion for mentoring teams and driving quality through automation while integrating advanced technologies such as AI-driven chatbots. I thrive in dynamic environments where I can lead development teams and deliver impactful digital products.…I am an innovative Senior Frontend Engineer with over 10 years of experience in crafting scalable, high-performance web applications. My expertise lies in advanced JavaScript, React, and TypeScript, implementing solutions that greatly improve user engagement and reduce load times. I have a passion for mentoring teams and driving quality through automation while integrating advanced technologies such as AI-driven chatbots. I thrive in dynamic environments where I can lead development teams and deliver impactful digital products.

Arkadiusz Klimek

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

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I am an innovative Senior Frontend Engineer with over 10 years of experience in crafting scalable, high-performance web applications. My expertise lies in advanced JavaScript, React, and TypeScript, implementing solutions that greatly improve user engagement and reduce load times. I have a passion for mentoring teams and driving quality through automation while integrating advanced technologies such as AI-driven chatbots. I thrive in dynamic environments where I can lead development teams and deliver impactful digital products.…I am an innovative Senior Frontend Engineer with over 10 years of experience in crafting scalable, high-performance web applications. My expertise lies in advanced JavaScript, React, and TypeScript, implementing solutions that greatly improve user engagement and reduce load times. I have a passion for mentoring teams and driving quality through automation while integrating advanced technologies such as AI-driven chatbots. I thrive in dynamic environments where I can lead development teams and deliver impactful digital products.

Available to hire

I am an innovative Senior Frontend Engineer with over 10 years of experience in crafting scalable, high-performance web applications. My expertise lies in advanced JavaScript, React, and TypeScript, implementing solutions that greatly improve user engagement and reduce load times.

I have a passion for mentoring teams and driving quality through automation while integrating advanced technologies such as AI-driven chatbots. I thrive in dynamic environments where I can lead development teams and deliver impactful digital products.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

English

Fluent

Chinese

Advanced

Japanese

Advanced

Work Experience

Senior Frontend Engineer at CSOFT International

May 1, 2025 - September 4, 2025

Led the architecture and development of a customer portal that increased user engagement by 40%, utilizing React, TypeScript, and Redux-Toolkit. Developed secure payment solutions integrating Stripe and PayPal while ensuring PCI compliance. Championed responsive design boosting mobile traffic by 50%. Directed a team of 6 developers under Agile methodologies, improving delivery speed and reducing bugs. Integrated AI-driven chatbots significantly reducing customer service calls. Enhanced testing with Jest and Cypress achieving 90% coverage. Reduced deployment times by leveraging Docker and Kubernetes. Mentored junior developers and utilized PostgreSQL for tracking progress.

Senior Frontend Developer at SOLWIT SA (part of ALTEN Group)

July 1, 2022 - September 4, 2025

Architected interactive UIs and data visualization components using Next.js, TypeScript, and Redux-Toolkit. Integrated OAuth2 and JWT authentication improving security. Designed responsive interfaces utilizing Chakra UI and multiple charting libraries that reduced bounce rates by 31%. Collaborated with backend teams for RESTful and GraphQL API integration, improving response times by 43%. Developed AI-based user interfaces contributing to a 40% improvement in system scalability. Presented industry webinars and optimized CSS architectures reducing styling redundancies by 25%. Conducted comprehensive cross-browser and unit testing.

Frontend Developer at 4Experience

December 1, 2018 - September 4, 2025

Developed a real-estate platform with Vue.js delivering responsive, cross-browser solutions that improved load times and engagement. Revamped analytics dashboard UI increasing daily active users by 20%. Refactored legacy code cutting frontend codebase size by 15% and migrated to single-page apps improving engagement by 12%. Led internal workshops on Vue.js and modern JavaScript ES6+ features. Acted as UX/UI designer using Figma ensuring pixel-perfect designs. Created responsive web and mobile interfaces using React, Angular, Vue.js, and React Native, enhancing cross-platform consistency and user engagement.

Intermediate Frontend Developer at Suria International Services Pte. Ltd.

May 1, 2015 - September 4, 2025

Collaborated to launch a multi-platform CMS adopted by over 200 clients using ReactJS. Created responsive layouts using CSS-in-JS for seamless experience. Enhanced UI responsiveness and client-side validation with jQuery. Transformed Photoshop and Figma designs into semantic XHTML and CSS. Improved cross-browser compatibility with polyfills, reducing customer complaints by 10%. Conducted client-side performance testing with Chrome DevTools to optimize application speed.