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James LeeJL

James Lee

Senior Front-End Developer

€200/day
Warsaw, PL
8-15 years

Average response time: 1 hour

About James

A highly proficient Senior Frontend Developer with a meticulous attention to detail and a
deep passion for crafting seamless user experiences using modern front-end technologies
such as React, Vue, and Angular
  • Polish

    Native or bilingual

  • English

    Fluent

Remote only
Primarily works remotely

Experience

  • Obodo
    Senior Front-End Developer
    November 2022 - Today (3 years and 7 months)
    • Developed several AI-powered applications, integrating advanced GPT models for enhanced functionality and user experience.
    • Pioneered the frontend development from the ground up using React and Next.js, achieving a 20% speed improvement by implementing global state management solutions like Redux and Context API.
    • Designed and implemented a data-driven structure for prompt engineering, ensuring 90% alignment with user requirements.
    • Engineered a flexible and scalable frontend architecture, along with the necessary APIs to support seamless integration.
    • Translated design concepts and wireframes into high-quality, production-ready code.
    • Conducted thorough code reviews to maintain high standards of code quality and efficiency.
    • Continuously stayed abreast of the latest industry trends and technologies, ensuring that applications remain modern, competitive, and effective.
    Next.js React.js JavaScript Angular HTML5
  • Northdex
    Senior Front-End Developer
    January 2019 - November 2022 (3 years and 10 months)
    ➢ Developed a blockchain centralized exchange (CEX) application from the ground
    up using Vue.js, adhering to component-based architecture for scalability and
    maintainability.
    ➢ Collaborated closely with backend teams to design and implement APIs for
    seamless data fetching and manipulation.
    ➢ Integrated real-time communication features using WebSocket, and developed
    dynamic trading charts leveraging the TradingView library.
    ➢ Wrote clean, well-structured code that adhered to best practices and coding
    standards, resulting in a 20% improvement in development efficiency and ease
    of mentoring.
    ➢ Monitored and optimized frontend performance, achieving a 15% improvement
    in speed and responsiveness.
    ➢ Troubleshot interface software issues and debugged application code to ensure
    smooth and reliable functionality
  • Sii Sweden
    Senior Front-End Developer
    April 2014 - March 2016 (1 year and 11 months)
    • Successfully led multiple projects, consistently meeting 100% of client requirements and delivering exceptional results.
    • Leveraged advanced frontend technologies, including React, Vue, and Angular, to develop intuitive applications, incorporating UI/UX frameworks like Tailwind, Material UI, and employing test-driven development practices using Storybook.
    • Designed and built comprehensive dashboards using data visualization tools like Chart.js and D3.js, enhancing analytics capabilities by 30%.
    • Adhered to security best practices, ensuring the protection of user data with 100% compliance.
    • Implemented a streamlined CI/CD workflow, resulting in a 20% improvement in development efficiency and business management processes.
    • Continuously monitored and logged application performance to enable effective analysis and proactive issue resolution.

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Education

  • Bachelor's degree of
    University of Warsaw
    2014
    Bachelor's degree of

Skill set

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