Sergey

Front-End developer, 7 years experience
SERHII FILIN [открыть контакты](см. выше в блоке «контактная информация»)

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ABOUT
As an experienced developer, I bring expertise in programming languages like TypeScript and
frameworks such as Angular, Vue.js and Nest.js, for the past 7 years. My diverse background
spans industries like finance, medical, retail and entertainment, showcasing my adaptability.
With a strong foundation in computer science and engineering, I am committed to continuous
learning and successfully tackling challenges in any organization.

SKILLS
Angular, Vue.js, React, TypeScript, NgRx, NGXS, SASS, Tailwind CSS, Angular Material, PrimeNg,
Chart.js, ECharts, Capacitor, GraphQL, Node.js, Express.js, MongoDB, Webpack, Docker,
Next.js, NestJs, CI/CD, Reactive programing, WebRTC, .git, SQL, Agile development,
Unit/Integration/Screenshots Testing.

PROBLEM SOLVING EXPERIENCE
Staff Rotation Between Projects
To streamline the process of staff rotation across projects, the following measures were
implemented:
Developed and documented corporate coding standards
Git repository management guidelines were established
CI/CD deployment procedures for projects were defined
These initiatives, supported by internal training courses, significantly enhanced the efficiency
of onboarding employees to the corporate development framework, ensuring smooth and
rapid transitions between projects with minimal downtime.

Enhancing Startup Budget Efficiency
The approach to task execution was optimized, resulting in a notable increase in productivity
and a reduction in task completion time, aligned with management expectations. Additionally,
the strategy for utilizing third-party libraries was refined, along with the decomposition and
reuse of core functionalities, contributing to improved development efficiency and cost-
effectiveness.

PROFESSIONAL EXPERIENCE
Cryptology Key: 05/2024 - PRESENT, 1.3+ YEAR

Developing server applications using the Nest.js framework, which provides structure
and tools for scalable applications
Creating a server using Node.js to handle requests and interact with a database
Writing automated tests using tools like Selenium or Cypress to verify the full
functionality of a web application
Implemented SEO optimisation and analytics
Integration Cognito, Aws amplify

Loyalty System (LSbonus): 05/2023 - 02/2024, 10 month
Performance optimization of web applications
Integration with back-end
Maintaining and supporting existing projects
Creating modular, responsive templates using modern CSS techniques and JavaScript
libraries
IDAP: 05/2019 - 12/2022, 3.8 YEAR
Creating stylish user interfaces using component libraries (e.g., Material UI) for React or
Angular
Working with asynchronous operations and data streams in Angular using RxJs
Integrating the Plaid.js library into a web application to obtain financial data and banking
information from users
Building interactive charts and graphs on web pages using the Chart.js library

EDUCATION
KYIV NATIONAL ECONOMICS UNIVERSITY
Bachelor of Computer Science, Computer Engineering
2017 - 2019