Кирило

KIRILL KOVALENKO
[open contact info](look above in the "contact info" section) Kiev, Ukraine [open contact info](look above in the "contact info" section) LinkedIn Telegram

OBJECTIVE
Full-stack developer with 4 years of experience in development. I specialize in building, scaling, and maintaining
scalable web applications. Using the JavaScript ecosystem, including ReactJS, React Native, and NodeJS, and con-
stantly working with traditional technologies. Passionate about leveraging innovative technologies to create impactful
solutions that enhance user experiences and drive business growth. Seeking opportunities to collaborate with dynamic
teams on challenging projects to further hone my skills and contribute to meaningful initiatives.

TECH SKILLS
• Programming Languages: JavaScript, TypeScript, PHP
• Frontend Technologies: HTML, CSS, ReactJS, React Native, Redux, Bootstrap, Material UI, Tailwind,
Styled Components, SCSS, Next.js, JQuery, Zustand, Axios, GraphQL
• Backend Technologies: Node.js, Express, MongoDB, SwaggerUI, SQL
• Build Tools: Webpack, Vite, Babel, Docker, Yarn, Npm, Eslint, Prettier
• Testing Frameworks: Jest, Enzyme, React Testing Library
• Other Tools & Technologies: Git, Google Maps API, WebSocket, Firebase, REST API, OOP, SOLID,
CI/CD, Sentry, Figma, JSON

EXPERIENCE
Middle React developer 10.2021 - 03.2024
EDSTEIN Singapore, Remote
Responsibilities:
• Lead development of core features: statistics center, new course editor, user infographic interface.
• Implemented best UX practices and adaptive UI.
• Created history module that tracked user activity across the platform.
• I developed a new software module within just one month, excluding backend and design components.
• Refactored legacy code to reduce maintenance cost.
• Transferred the web application to the mobile one.
• Ordinarily and deeply reviewed PR’s, discussed technical solutions etc.
• Took part in the Interview process and helped new developers integrate into the team.
Tools and Technologies: HTML, CSS, SCSS, JavaScript, TypeScript, React, React Native, Redux, NodeJs,
Git, Rest, Docker, Styled components, Webpack
Project Description: Configurable LMS project (B2B). Streamlining the education system, our platform
facilitates course creation, progress tracking, and AI-driven recommendation systems for personalized learning.
Empowering educators and learners with advanced functionalities, it enhances educational experiences.
Achievements:
• I created a module called ’Programs’, and as a result, product sales increased by 40%.
• I created dynamic filters for course filtering, and as a result, the user experience increased by 1.2 points in a
1-10 scale.
• I’ve onboarded 4 new employees during this period of work.
Middle Full-Stack developer 12.2022 - 02.2023
DTEAM LLC OU Kiev, UA
Responsibilities:
• I created the backend for a large-scale project in just four days.
• Created a big full-stack web app.
• Reduced the rendering time of the infinite calendar timeline by refactoring old code.
• Enhanced user experience by introducing TailwindCSS into the project.
• Worked on core features such as complex events with custom recurring parameters.
Tools and Technologies: HTML, CSS, SCSS, JavaScript, TypeScript, React, Redux, NodeJs, Git, Rest,
Docker, NodeJs, Express, MongoDB, Tailwind
Project Description: Calendar project. This system simplifies scheduling and time management, offering features
such as event creation, sharing, and reminders. With additional functionalities like integrated task lists and
customizable event notifications, our calendar enhances productivity and organization for individuals and teams.
Achievements:
• I initiated this project, and within 2 months, it earned me a bonus and praise from the client.
• I utilized new technologies and a module bundler, thereby speeding up the build process by 30% and
enhancing the development speed by 20%.
• I developed and implemented an internal project documentation system that reduces the time spent searching
for necessary information by 25%.
Full-Stack Developer @ Freelance 08.2020 - 10.2021
Freelance Kiev, UA
Responsibilities:
• Created several big projects from scratch.
• Communicated directly with a client to create precise acceptance criteria.
• Involved in all stages of application development (sometimes as Full-Stack Dev).
Tools and Technologies: HTML, CSS, SCSS, JavaScript, TypeScript, React, Redux, NodeJs, Git, Rest,
Docker, NodeJs, Express, PHP, Shopware, Twig, Material UI
Projects Description: E-commerce projects with an admin panel for selling various products.
Trainee Web Developer 05.2020 - 08.2020
Sphere Digital Zaporozhye, UA

EDUCATION
Courses and Training:
• React + Redux - Professional Development [Certificate]
• The Complete JavaScript + React Course - From Zero to Result [Certificate]
• React JS Fundamental Course from A to Z [Video Course]
• MERN from junior [Video Course]

National University of Zaporizhzhia August 2020 - May 2024
Bachelor of Science, Software Engineering

LANGUAGES
English (Upper-Intermediate), Ukrainian (Proficient), Russian (Proficient)