Stas

Email: [відкрити контакти](див. вище в блоці «контактна інформація»)
Stas Trotsenko Phone: [відкрити контакти](див. вище в блоці «контактна інформація»)
Telegram: @stasTrots
FRONT-END DEVELOPER

Results-driven Front-End Developer with 4+ years of experience delivering impactful, business-focused
web solutions. I specialize in crafting intuitive, responsive applications using modern technologies like
React, Redux, and REST APIs, transforming complex requirements into streamlined, high-performing
systems. My expertise lies in optimizing workflows, modernizing digital platforms, and building scalable
tools that directly enhance business efficiency and user satisfaction. From designing real-time
communication systems to developing browser extensions and corporate websites, I have consistently
solved challenges in logistics, finance, and operations through tailored, innovative solutions.

SKILLS
• JavaScript, TypeScript • React-Router-Dom, React-Hot-Toast, • React Testing Library, Jest
• React.js, Next.js • Moment.js, Lodash, • Vite, Webpack, Prettier, ESLint
• Redux Toolkit, Redux Saga • React-Hook-Form, Socket.IO • Docker, Docker Compose
• React Router, RTK Query • HTML, CSS, SCSS, SASS • Git, GitHub, Slack, Jira
• Material UI, Yup • JSON, RESTfu1 APIs, • Agile, Scrum, Clean Code.

EDUCATION LANGUAGES
Bachelor's degree of Navigation English Upper-Intermediate (B2)
Zhukovsky National Aerospace University ‘Kharkiv Ukraine Native (C2)
Aviation Institute’

WORK EXPERIENCE
Front-end Developer | Fleet Air International Kft
Project 2: CMS FleetAir
Enhanced existing features and added new ones to the company's CMS. The goal was to automate logistics and financial
statistics.
Responsibilities:
• Developed a logistics module for creating and managing logistic orders.
• Created a financial module to track company expenses and income.
• Designed statistics sections for logistics and finances.
• Updated the UI of older modules.
Achievements:
• Reduced map rendering times by 30%, improving user experience during high-load operations.
• Enhanced dashboard interactivity and responsiveness, resulting in a 15% increase in user retention.
• Implemented advanced chart features, improving data clarity for critical business decisions.
• Decreased debugging time by 20% through cleaner code structures and optimized QA workflows.
Technologies: JavaScript, React, RTK Query, MUI, Yup, React-Router-Dorn, React-Hot-Toast, Moment.js, Lodash, React-
Hook-Form
Project 1: Website FleetAir
Created an optimized corporate website to serve as the company's online presence.
Responsibilities:
• Designed an optimized website with fast loading times.
• Adapted styles for various devices.
• Built an optimized gallery.
• Developed contact forms.
Achievements:
• Delivered an optimized website with efficient content loading.
• Made the website responsive for mobile devices, tablets, and large screens.
• Designed an optimized gallery showcasing aircraft with detailed descriptions.
• Created and implemented user-friendly contact forms.
Technologies: TypeScript, JavaScript, Vite, MUI, Yup, React-Router-Dorn, React-Hot-Toast, React-Hook-Form

Front-end Developer | Jul 2020 - Oct 2023
BeSocialStudio
Project 2: CMS BesocialStudio
Developed a company management system to consolidate internal processes and workflows from partner sites into a
single system. The goal was to optimize and create a unified workflow structure.
Responsibilities:
• Designed project architecture.
• Developed technical documentation.
• Planned and implemented internal systems.
• Created modules based on user roles and access levels.
Achievements:
• Developed an access control system that displayed functionality based on the user's role.
• Implemented a real-time chat system optimized for each partner site.
• Created a real-time monitoring system to track employee activities.
• Designed a real-time notification module integrated with chat and workflow monitoring.
• Implemented a revenue tracking module displaying real-time income for individual employees.
Technologies: JavaScript, React, Redux, Redux-Saga, Socket.IO, React-Router-Dorn

Project 1: Browser Extensions BesocialStudio
Developed browser extensions to enhance functionality and gather statistics for partner websites. The goal was to
create extensions that provided additional features and analytics.
Responsibilities:
• Designed UI/UX for browser extensions.
• Developed additional functionality for websites through extensions.
• Maintained and adapted extensions to accommodate website updates.
Achievements:
• Created browser extensions tailored to specific partner websites.
• Built tab management systems based on user roles.
• Developed bot systems to automate user-defined tasks and collect analytics.
Technologies: JavaScript, React, WebSocket, WebExtension API