Kostiantyn D.
Frontend developer
Kostiantyn is a frontend developer with eight years of commercial experience, specializing in Vue.js. He has demonstrated exceptional proficiency in building robust and scalable web applications.
In addition to his technical expertise, Kostiantyn has a keen eye for design, collaborating effectively with designers using Figma to ensure cohesive and visually appealing interfaces.
He has a proven track record of delivering outstanding results for Proxify clients, consistently achieving high output and maintaining excellent code quality.
Main expertise
- HTML / CSS 8 years
- JavaScript 8 years
- Vue.js 5 years
Other skills
- Nuxt.js 1 years
Selected experience
Employment
Software Engineer (Frontend Developer / Vue.js Developer / Svelte Developer
DNV GL (Norway, Remote) - 2 years 11 months
- Developed high-performance micro-frontends using VueJS, Svelte, and TypeScript, enhancing application performance and scalability.
- Played a key role in designing and implementing micro-frontend applications, component libraries, and routing, enabling faster development, easier maintenance, and consistent user experiences across multiple applications.
- Collaborated with cross-functional teams, including UX/UI designers, backend developers, and product managers, in an Agile environment to ensure smooth communication and timely feature delivery.
- Actively participated in code reviews, ensuring adherence to best practices and maintaining high-quality code standards.
- Implemented and maintained unit and integration tests, leading to increased application stability and reduced time spent on bug fixes.
Technologies:
- Technologies:
Vue.js
Agile
Svelte
TypeScript
Full-stack Developer
Freelance - 3 years 10 months
- Successfully delivered a variety of projects, including website development from scratch, frontend enhancements, and custom web applications, demonstrating adaptability to diverse client needs.
- Achieved significant improvements in speed optimization, SEO, and quality audits, leading to increased client satisfaction, better site rankings, and faster page load times.
- Expertly utilized frontend and backend technologies such as Vue.js, Laravel, Node.js, Adonis.js, and Express.js to develop tailored solutions that exceeded client expectations.
- Developed and maintained component libraries and design systems in Vue.js, ensuring a seamless user experience and efficient UI development across multiple projects.
- Collaborated closely with clients to gather requirements, provide estimates, and offer technical guidance, ensuring clear communication and timely project delivery.
- Effectively managed projects using tools like Jira, Azure, and YouTrack, prioritizing tasks and providing regular status updates to clients.
- Proactively addressed performance bottlenecks, security vulnerabilities, and code maintainability issues, delivering robust, secure, and maintainable web applications.
- Stayed current with industry trends, best practices, and emerging technologies, incorporating them into projects to deliver cutting-edge solutions and maintain market competitiveness.
Technologies:
- Technologies:
-
Vue.js
Frontend Developer
Boboyan (Khmelnytskyy, Ukraine) - 1 year 9 months
- Developed high-quality frontend solutions for Magento and OpenCart e-commerce platforms, consistently meeting deadlines and exceeding client expectations with visually appealing, user-friendly designs.
- Optimized development workflows using Git, Docker, and Linux, enhancing team collaboration and ensuring efficient deployment and maintenance of applications.
- Mentored colleagues in frontend development best practices, fostering a collaborative team environment that encouraged skill development and knowledge sharing.
- Played a key role in project planning and execution, collaborating with project managers to gather requirements, estimate timelines, and allocate resources effectively.
- Implemented responsive design principles, ensuring seamless user experiences across devices and browsers, which led to increased customer engagement and reduced bounce rates.
- Proactively identified and resolved performance issues, bugs, and usability concerns, resulting in improved site stability, higher conversion rates, and enhanced user satisfaction.
- Participated in regular code reviews, offering constructive feedback to improve code quality and reduce technical debt.
Technologies:
- Technologies:
JavaScript
Git
Frontend Developer
Avivi (Khmelnytskyy, Ukraine) - 1 year 8 months
- Created visually stunning and responsive frontend designs for CMS-based websites using Photoshop and Zeplin mockups, enhancing client satisfaction and user experiences.
- Developed responsive email templates that significantly improved client engagement, open rates, and click-through rates by optimizing for various devices and email clients.
- Utilized expertise in CSS, HTML, JavaScript, PHP, Angular, and Git to deliver high-quality frontend solutions, demonstrating adaptability and a strong technical foundation.
- Collaborated with cross-functional teams, including designers, developers, and project managers, to ensure clear communication and alignment with project goals.
- Implemented web accessibility best practices, making websites more usable and inclusive, which led to increased site traffic and enhanced brand reputation.
- Actively participated in code reviews and knowledge-sharing sessions, contributing to the continuous improvement of team coding standards and practices.
- Worked extensively with various CMS platforms, customizing and extending their functionality to meet unique client requirements.
Education
BSc.Computer Engineering and Systems Programming
Khmelnytskyi National University, · 2013 - 2017
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