Serhii

Serhii Valko
Front End Developer with 3 years of experience
telephone: [відкрити контакти](див. вище в блоці «контактна інформація») | e-mail: [відкрити контакти](див. вище в блоці «контактна інформація») | telegram:@valko_s

Summary
A highly motivated Front-End Developer with over 3 years of experience in web
and mobile development projects, ranging from startups to large-scale banking
applications. Passionate about leveraging information technology to transform
businesses and improve people's lives. Committed to continuous learning and
staying up-to-date with the latest industry trends and technologies. Eager to
contribute my skills, experience, and enthusiasm to a dynamic team and tackle new
challenges.

Skills
● JavaScript, TypeScript
● React, React Native
● Redux, Redux Saga, Mobx, Next
● HTML (Pug), CSS (SCSS, LESS),
● NodeJS, ExpressJS,
● GraphQL, REST API
● MySQL, MongoDB, WebSockets
● CI/CD , Docker
● Jest (unit testing)
● Git, AvoCode, Figma
● English B1

Work Experience
TenThousand, Kyiv– React \ React Native developer
February 2022 – Present:
● Developed a medically compliant heart rate tracking application that ensured
accuracy and conformed to medical standards.
● Participated in the development of a secure, user-friendly banking application,
focusing on various aspects of the application while collaborating with the
team to enhance its overall functionality.
● Identified, diagnosed, and resolved complex bugs promptly, maintaining timely
project delivery.
● Devised and utilized custom hooks to streamline processes, optimize
performance, and elevate the user experience.
● Refactored legacy code to enhance application speed and efficiency.
 ● Spearheaded the migration to the latest React Native version, capitalizing on
its features to bolster overall performance and user experience.

Jauntsoft, Kyiv– React \ React Native developer
January 2020 – February 2022:
● Developed a series of React applications, collaborating closely with the team
to ensure an outstanding user experience.
● Led the innovation of a cutting-edge chat application, seamlessly integrating a
third-party messaging platform and facilitating instant notifications for an
enhanced user experience.
● Engineered an interactive, custom data visualization solution that empowered
clients to make informed, data-driven decisions.
● Contributed to the development of a web-based platform for estimating
software development costs and identifying skilled personnel.
● Actively participated in code reviews, offering valuable feedback on
architecture and design solutions while resolving technical issues.
● Strengthened React development skills and honed expertise in stakeholder
collaboration.
● Acquired experience in project management, including setting project
objectives, establishing timelines, and monitoring progress to guarantee
punctual project delivery.

Education
Kyiv Polytechnic Institute, Kyiv
Bachelor of Automation and Computer Integrated Technologies