Yaroslav

Yaroslav Kos
Full Stack Web Development using JavaScript
[відкрити контакти](див. вище в блоці «контактна інформація») [відкрити контакти](див. вище в блоці «контактна інформація») Lviv

SUMMARY

I am a Full-Stack Web Developer with extensive experience in both frontend and backend
development, specializing in JavaScript (Vue.js, React.js, Node.js), as well as WordPress
and Odoo for content management and business automation solutions. I focus on
implementing responsive, interactive interfaces and scalable backend systems that enhance
user experience. My work spans developing custom web applications, integrating real-time
data, and extending functionalities to meet specific business needs. I deliver efficient, high-
quality, and user-centered applications on time

EXPERIENCE

Dashboard X-MY.NET (2025 - Present)

Role: Full-Stack Developer
Project Link: Under development

Project Overview:
Dashboard X-MY.NET is a self-service web platform developed for an internet service
provider, allowing users to manage their personal accounts efficiently. Key features include
managing personal data, handling payments, modifying tariff plans, and interacting with
support via a chat feature, with potential for AI chat integration. The project aims to
provide an intuitive, scalable experience that enhances customer interaction.

Key Contributions & Achievements:
✔ Frontend Development: Built with Vue.js and Tailwind CSS, creating a responsive
and modern UI that allows users to manage their accounts effectively. Key features include
dynamic components and interactive forms to ensure a seamless user experience.
✔ Backend Development: Utilized Node.js with Firebase Functions for serverless
computing, ensuring scalability and efficiency in backend processes.
✔ Real-Time Data Syncing: Integrated Firebase Realtime Database, ensuring that user
information is always up-to-date across the platform.
✔ Database Management: Implemented MySQL (phpMyAdmin) for structured data
storage and management, supporting the backend with a reliable and scalable relational
database solution.
✔ Telegram Bot Integration: Developed a Telegram bot that allows users to receive
updates, notifications, and perform basic account management directly through the messaging
platform, improving accessibility and customer engagement.

Technologies: Vue.js, Node.js, Firebase, Firebase Functions, Realtime Database, MySQL
(phpMyAdmin), Telegram Bot API

ILA (2024 - Dec 2024)

Role: Odoo Developer & Web Customization Specialist
Project Link: Not live

Project Overview:
The ILA project focused on enhancing core Odoo modules (Events, Contacts, eLearning,
Blog, and CRM) by improving both the frontend web presentation and backend
functionality. The goal was to optimize performance, improve user experience, and build
seamless integrations between frontend and backend systems.

Key Contributions & Achievements:
✔ UI Redesign & Enhancements: Led the UI overhaul, introducing dynamic and
engaging design elements that improved the site's visual appeal and navigation,
significantly enhancing user experience.
✔ Extended Odoo Functionality: Customized and extended Odoo modules to provide
advanced workflow automation and improved data handling capabilities, improving the
platform’s efficiency.
✔ eLearning Module Customization: Developed specialized features for the eLearning
module, aligning the platform with the specific needs of users for better interaction and
learning experiences.
✔ Dynamic Template Development: Created dynamic, customizable templates that
allowed for more flexible web presentations, improving the website’s appeal and enabling a
more engaging user experience.

Technologies: Python, Odoo, PostgreSQL, JavaScript, XML, QWeb

Momenzo (2023 - Dec 2024)

Role: Full-Stack Developer
Project Link: momenzo.com

Project Overview:
Momenzo is a mobile video editing platform designed for real estate agents and
automobile dealers, enabling them to create branded, high-quality videos in under 5
minutes. The application automates editing and provides customizable templates to enhance
online listings effortlessly.

Key Contributions & Achievements:
✔ Custom Video Template Editor: Developed a drag-and-drop template editor,
allowing users to position and customize video overlays without technical expertise.
✔ Performance Optimization with Canvas: Replaced static image-based overlays with
Canvas rendering, reducing video processing time and improving performance.
✔ Full-Stack Development: Built and optimized both frontend (Vue.js) and backend
(Node.js, TypeScript, MongoDB) to ensure seamless functionality.
✔ Seamless Authentication: Integrated Google & Apple login, improving accessibility
and security.
✔ User Experience Enhancements: Redesigned the UI for clarity and responsiveness,
making the app intuitive for non-technical users.
✔ Smart User Features:

• Implemented a video library on user profiles, providing easy access to past creations.
• Added automatic phone number prefix detection based on user location, streamlining the
registration process.

Technologies: Node.js, TypeScript, Vue.js, MongoDB, AWS

Riding the Rainbow (2022 - 2023)

Role: Full-Stack Developer
Project Link: ridingtherainbow.com

Project Overview:
Riding the Rainbow is a platform that connects donors with Ukrainian refugees, enabling
the donation of bicycles, sports equipment, and musical instruments across Europe. The
system integrates real-time tracking, automated logistics, and community engagement
tools to streamline the donation process.

Key Contributions & Achievements:
✔ Scalable Backend for Real-Time Data: Developed a Node.js backend capable of
handling 1,000+ live map elements without performance issues, ensuring a smooth mobile
experience.
✔ WordPress-Based Frontend & Admin Dashboard: Built and customized the
WordPress frontend, optimizing UI/UX for accessibility and performance. Developed a
custom admin panel for managing donations, tracking statistics, and handling
communication.
✔ User Engagement & Retention: Implemented a referral and rewards system,
increasing user participation and repeat donations.
✔ Automated Communication System: Integrated AWS SES for personalized, automated
email campaigns, improving engagement with donors and volunteers.
Technologies: Node.js, WordPress, Firebase, AWS SES

Smart Selection (2021 - 2022)

Role: Full-Stack Developer
Project Link: smartselection.com.au

Project Overview:
Smart Selection revolutionizes product selection for homebuilders by replacing outdated
catalogs with a real-time, interactive platform. It ensures seamless tracking, compatibility
checks, and efficient creation of product schedules.

Key Contributions & Achievements:
✔ Improved User Experience & Navigation: Led a complete UI redesign, making the
platform more intuitive and increasing user adoption.
✔ Enhanced System Stability: Developed and integrated automated testing, reducing
deployment issues and improving backend reliability.
✔ Efficient PDF Generation: Built a high-performance document rendering system,
reducing generation time by 30% and enabling seamless handling of complex configurations.
✔ Scalability & Performance Optimization: Improved backend processes to handle
larger datasets efficiently, ensuring smooth operation under high demand.

Technologies: React.js, Node.js, Mocha, Chai, AWS Lambda

E-Commerce Platform Startup (2021)

Role: Full-Stack Developer
Project Link: The project did not go live.
Project Overview:
Worked on a proof-of-concept e-commerce platform for a startup, focusing on building a
scalable, high-performance solution that integrated a headless CMS backend with a
dynamic, interactive frontend. Developed a secure API layer to streamline data exchange
and optimize performance.

Key Contributions & Achievements:
✔ Optimized Performance & Scalability: Implemented strategies to improve load times,
SEO, and overall platform responsiveness, ensuring a smooth shopping experience.
✔ Enhanced API Efficiency: Designed a GraphQL-based API to minimize redundant
data fetching, reducing server load and improving frontend responsiveness.
✔ Security & Middleware Development: Built a custom Node.js middleware to handle
authentication, authorization, and secure data transactions.
✔ Custom E-Commerce Features: Extended backend capabilities by developing custom
data models and API endpoints, enhancing product, order, and user management.
✔ Seamless Third-Party Integrations: Integrated payment processing, shipping
providers, and analytics tools, ensuring a complete and functional e-commerce ecosystem.
✔ Automation & Deployment: Contributed to CI/CD pipelines and automated testing,
improving development workflow and system stability.

Technologies: React.js, Next.js, Node.js, WordPress, WooCommerce, GraphQL

Small Project

5 sites (landing pages), 1 online store were implemented on the WP

React app with Twilio as WhatsApp.

a Telegram bot that takes data from Google Sheets

EDUCATION

2006-2011

Ivan Franko National University of Lviv, Ukraine, Faculty of Applied Mathematics and
Computer Science

2011-2013

Lviv, Ukraine Regional Institute of Public Administration

LANGUAGES

Ukraine - native

English - B1

SKILLS

Vue, React, JavaScript, TypeScript, Sass, Bootstrap, MateriaUI, Quasar, MongoDB, MySql,
pgAdmin, GraphQL, Node, Html, AWS S3, AWS lightsail, AWS SES, AWS Lambda, Git,
Docker, WordPress, Oddo, Webflow, Xano, Mocha, Chai, Firebase, Stripe, Twilio, Git.