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Hi, I'm Volodymyr Kotous, a Senior Full Stack Developer with over 7 years of experience crafting scalable and high-performance web applications. I specialize in modern technologies like React, Next.js, Vue, Node, and Python to build seamless user experiences that drive business growth. I'm passionate about clean, pixel-perfect design and efficient, reliable backend services. Throughout my career, I've enjoyed collaborating with diverse teams, using Agile methodologies, and continuous integration/delivery practices to ship quality software on time. I thrive in fast-paced environments where innovation meets strong teamwork and problem solving.…Hi, I'm Volodymyr Kotous, a Senior Full Stack Developer with over 7 years of experience crafting scalable and high-performance web applications. I specialize in modern technologies like React, Next.js, Vue, Node, and Python to build seamless user experiences that drive business growth. I'm passionate about clean, pixel-perfect design and efficient, reliable backend services. Throughout my career, I've enjoyed collaborating with diverse teams, using Agile methodologies, and continuous integration/delivery practices to ship quality software on time. I thrive in fast-paced environments where innovation meets strong teamwork and problem solving.

Volodymyr Kotous

Web Developer, Developer, Full Stack Developer, +2

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Hi, I'm Volodymyr Kotous, a Senior Full Stack Developer with over 7 years of experience crafting scalable and high-performance web applications. I specialize in modern technologies like React, Next.js, Vue, Node, and Python to build seamless user experiences that drive business growth. I'm passionate about clean, pixel-perfect design and efficient, reliable backend services. Throughout my career, I've enjoyed collaborating with diverse teams, using Agile methodologies, and continuous integration/delivery practices to ship quality software on time. I thrive in fast-paced environments where innovation meets strong teamwork and problem solving.…Hi, I'm Volodymyr Kotous, a Senior Full Stack Developer with over 7 years of experience crafting scalable and high-performance web applications. I specialize in modern technologies like React, Next.js, Vue, Node, and Python to build seamless user experiences that drive business growth. I'm passionate about clean, pixel-perfect design and efficient, reliable backend services. Throughout my career, I've enjoyed collaborating with diverse teams, using Agile methodologies, and continuous integration/delivery practices to ship quality software on time. I thrive in fast-paced environments where innovation meets strong teamwork and problem solving.

Available to hire

Hi, I’m Volodymyr Kotous, a Senior Full Stack Developer with over 7 years of experience crafting scalable and high-performance web applications. I specialize in modern technologies like React, Next.js, Vue, Node, and Python to build seamless user experiences that drive business growth. I’m passionate about clean, pixel-perfect design and efficient, reliable backend services.

Throughout my career, I’ve enjoyed collaborating with diverse teams, using Agile methodologies, and continuous integration/delivery practices to ship quality software on time. I thrive in fast-paced environments where innovation meets strong teamwork and problem solving.

Skills

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Intermediate

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Work Experience

Web Developer at Decommerce

April 1, 2024 - April 1, 2025

Engineered a robust user account management system for an online eCommerce platform using PHP and MySQL, increasing user retention rates by 25%. Designed and implemented responsive UI components with Bootstrap and jQuery, improving user experience and reducing page load times by 30%. Integrated secure payment processing via Stripe API, contributing to a 15% rise in transactions. Utilized Git for version control, collaborating with developers to boost productivity and reduce deployment errors by 40%.

Software Developer at Facebook

February 1, 2023 - February 1, 2024

Developed and deployed a scalable subscription feature for a cloud-based SaaS app using React and Node.js, leading to a 40% revenue increase within six months. Optimized backend services with Express.js and MongoDB, reducing API response times by 50% and enhancing user satisfaction. Worked closely with UX designers to improve interfaces, resulting in a 20% boost in user engagement. Implemented CI/CD pipelines using Docker and GitHub Actions, streamlining deployments and cutting release cycles by 30%.

Web Developer at DEVOX SOFTWARE

February 1, 2020 - December 1, 2022

Contributed to an AI-driven fintech application backend development using Python and Django, improving financial forecasting capabilities. Enhanced data security via RESTful services and secure authentication, achieving zero security breaches. Developed and maintained unit tests with Jest and Mocha, raising code reliability and decreasing bugs by 35%. Collaborated in Agile teams, engaging in sprint planning and daily stand-ups, enhancing communication and project delivery by 25%.

Web Developer at Decommerce

April 1, 2024 - April 1, 2025

Engineered a robust user account management system for an online eCommerce platform, leveraging PHP and MySQL, which boosted user retention rates by 25%. Designed and implemented responsive UI components using Bootstrap and jQuery, improving the overall user experience and reducing page load times by 30%. Integrated secure payment processing through the Stripe API, facilitating a seamless checkout experience and contributing to a 15% increase in transaction volume. Utilized Git for version control and collaborated with a team of developers, enhancing team productivity and reducing deployment errors by 40%.

Software Developer at Facebook

February 1, 2023 - February 1, 2024

Developed and deployed a scalable subscription feature for a cloud-based SaaS application using React and Node.js, leading to a 40% revenue increase within the first six months. Optimized backend services with Express.js and MongoDB, achieving a 50% reduction in API response times and enhancing user satisfaction. Collaborated closely with UX designers to refine application interfaces, resulting in a 20% uptick in user engagement and retention. Implemented CI/CD pipelines using Docker and GitHub Actions, streamlining the deployment process and reducing release cycles by 30%.

Web Developer at DEVOX SOFTWARE

February 1, 2020 - December 31, 2022

Contributed to the development of a cutting-edge AI-driven fintech application, utilizing Python and Django for backend development, which enhanced financial forecasting capabilities for users. Enhanced data security through the implementation of RESTful services and secure authentication protocols, resulting in zero security breaches during tenure. Developed and maintained comprehensive unit tests using Jest and Mocha, increasing code reliability and reducing bug reports by 35%. Collaborated in an Agile environment, participating in sprint planning and daily stand-ups, which improved team communication and project delivery timelines by 25%.

Web Developer at Decommerce

April 1, 2024 - April 30, 2025

Software Developer at Facebook

February 1, 2023 - February 29, 2024

Web Developer at DEVOX SOFTWARE

February 1, 2020 - December 31, 2022

Senior Full Stack Developer at Decommerce

April 1, 2024 - April 30, 2025

Built a Slack-like web app using React.js, Next.js, Tailwind, GraphQL, and Nest.js with complex data management and pixel-perfect design using MUI, deployed on AWS. Participated in sprint planning, grooming, PR reviews, and team communications to meet deadlines. Improved app performance with optimizations like memoization, code-splitting, infinite scrolling, and migration for SEO. Developed over 100 RESTful APIs with Node.js and TypeScript, and translated UX designs into functional frontend Vue3 code. Developed backend services and plugins using Laravel, integrated third-party analytics and feedback tools, used Agile and TDD principles, implemented CI/CD pipelines with Jenkins, Docker, and cloud services (AWS/GCP), and ensured high test coverage with Jest, Cypress, and Selenium.

React Frontend Engineer at Facebook

February 1, 2023 - February 28, 2024

Developed markdown text processing for Bot Framework Web Chat and a Channel Inspector tool using React and TypeScript. Provided support for internal teams and top customers, implemented best React practices including hooks and Redux resulting in high code coverage and accessibility. Participated extensively in code reviews and agile ceremonies, contributed to project planning and testing strategies for RTK Query implementations, and worked with Tech Lead to define frontend strategic direction.

Full Stack Developer at DEVOX SOFTWARE

February 1, 2020 - December 31, 2022

Designed and developed web applications using Java Spring, Hibernate, and JSP, leading to increased user engagement. Utilized Python and Django for maintaining and implementing web apps in cross-functional teams. Created and maintained RESTful APIs for mobile apps, improving customer satisfaction. Designed database schemas for SQL and NoSQL databases, boosting application performance. Collaborated with frontend developers for seamless user experiences and resolved application issues to reduce downtime significantly.

Frontend Developer at GENESIS TECH

April 1, 2019 - January 31, 2020

Owned the codebase from development to deployment and maintenance. Developed proofs of concept to explore future features, diagnosed and solved production issues. Migrated class-based React components to functional components with hooks, enhancing code maintainability. Built secure online-payment platforms with React Native. Developed end-to-end web apps using Python Flask, Django, and React. Collaborated across teams to meet performance goals and released highly bug-free frontend code while optimizing performance with faster load speeds.