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Yulia K.YK

Yulia K.

Full Stack Developer: JavaScript React Node

€120/day
Barcelona, ES
0-2 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Yulia

I am a results-oriented full stack developer with an analytical mindset, initiative, and a great ability to communicate and collaborate in a team. Throughout my career, I have worked on various projects, from educational platforms and school route management systems to electronic invoicing applications and interactive 3D web experiences.

I work with a modern stack that includes React, Next.js, TypeScript, Node.js, Express, PostgreSQL, Redux, Vitest, and Cypress, in addition to tools like Vercel and Netlify for agile and efficient deployments. I specialize in creating clean, accessible, and responsive interfaces, and in developing robust solutions that follow best practices such as SOLID principles, CI/CD, and automated testing.

I have participated in all phases of development: from requirements definition and architecture design, to implementation, testing, and deployment, adding real value to the product and the team.

As a freelancer, my goal is to help my clients build solid, scalable products designed for the end-user. I get involved with commitment, contribute technical vision, and maintain an attitude of constant improvement. If you are looking for an organized, problem-solving professional with clear communication, I would be delighted to collaborate on your next project.
  • Spanish

    Native or bilingual

  • English

    Fluent

Can work on-site
Barcelona (up to 50km), Sabadell (up to 50km)

Experience

  • YuliaWebDev
    Full Stack Software Engineer
    January 2023 - Today (3 years and 5 months)
    Sabadell, CT, Spain
    Semitsvetik: React, TypeScript, CI/CD, and GIT
    • Designed and developed a scalable web application using React and pure CSS, ensuring a clean and user-friendly interface.
    • Created modular and reusable components following SOLID principles, improving code maintainability and scalability.
    • Implemented a responsive and accessible UI/UX.
    • Integrated a CI/CD pipeline.
    Solar: Next.js, TypeScript, Redux, Chakra UI, Vercel, and GIT
    • Full stack development of an interactive and educational 3D application in a team of 4, following software architecture and design patterns for optimal performance and scalability.
    • Collaborated on defining new features, ensuring the implementation of robust and maintainable functionalities.
    • Designed and created reusable components for both client and server sides, ensuring clean code and adhering to SOLID principles.
    • Developed RESTful APIs.
    • Deployed the application using Vercel.
    • Proactively communicated project progress in daily stand-ups.
    Stichmate: TypeScript, Next.js, Cypress, and Vitest, Netlify
    • Refactored legacy code to improve reliability by applying strict typing with TypeScript, enhancing application performance and maintainability according to best practices.
    • Introduced unit and integration testing frameworks (Cypress, Vitest) to ensure quality through Test-Driven Development (TDD).
    • Implemented a CI/CD pipeline, deployed the application on Netlify.
    • Worked closely with the team in a highly collaborative Agile environment and participated in code reviews.
    Assist Route: Node.js, React, Express, PostgreSQL, Redux
    • Designed RESTful APIs and ensured a responsive User Interface and User Experience (UI/UX).
    • Implemented Redux for efficient state management, ensuring a consistent user experience across the application.
  • Mango
    Credit Risk Manager
    January 2013 - January 2023 (10 years)
    Barcelona, Spain
    • Managed a portfolio of €200M in bank guarantees, performing detailed risk assessments and data analysis.
    • Collaborated with cross-functional teams to forecast and calculate risk coverage needs.
    • Optimized processes for monitoring and adjusting risk levels, ensuring accuracy and regulatory compliance.
    • Conducted negotiations with stakeholders to optimize agreements and protect financial exposure.

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Education

  • Computer Software Engineering,
    Codeworks
    2024
    Computer Software Engineering,
  • Data Analyst with Python career track,
    DataCamp
    2023
    Data Analyst with Python career track,

Skill set

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