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Ihor Panchuk
Verified Expert in Engineering
Software Engineer and Developer
Roswell, GA, United States
Toptal member since June 24, 2025
Bio
Ihor is a senior software engineer with nearly 10 years of experience building scalable React/Next.js front ends and Node.js back ends. Proficient in TypeScript, GraphQL, and CI/CD, he has led a team to deliver an MVP in eight months, reducing onboarding time by 60%. Ihor is committed to providing innovation, clean code, and accessible, high-performing UIs.
Portfolio
Carvana
TypeScript, Node.js, Next.js, Express.js, GraphQL, Redux Toolkit, Webpack...
Walmart
TypeScript, Node.js, React, Redux, GraphQL, A/B Testing, Jest, HTML5, CSS...
GlobalLogic
TypeScript, Node.js, Redux, GraphQL, CI/CD Pipelines, Kubernetes, Docker...
Experience
- React - 8 years
- TypeScript - 7 years
- GraphQL - 5 years
- Node.js - 5 years
- Data Structures - 5 years
- Software Engineering - 5 years
- Docker - 3 years
- CI/CD Pipelines - 3 years
Preferred Environment
MacOS, WebStorm, Slack
The most amazing...
...solution I've developed is a suite of OOP-based SDKs and npm libraries architected to support immense scale and seamless integration.
Work Experience
Senior Front-end Software Engineer
2024 - 2025
Carvana
- Reduced manual processing time by 40% in four months by implementing a React-based CMS and user interface for vehicle annotation workflows using Figma mockups.
- Improved performance and reliability by 25-30% in two quarters through tuning and architectural refactoring of React components for responsiveness across screen sizes.
- Created CI/CD pipelines for React apps and Node services using Docker and Azure, supporting the full development lifecycle and enabling timely, reliable deployments.
- Delivered new features and reusable UI components, leading implementation of multi-search and nested modals to improve state handling and responsiveness across screen sizes.
- Drove innovation by adopting cutting edge technologies like generative AI tools and animation libraries for UI prototyping, aligned with modern digital experiences.
Technologies: TypeScript, Node.js, Next.js, Express.js, GraphQL, Redux Toolkit, Webpack, Docker, Jest, CI/CD Pipelines, Scrum, HTML5, CSS, Software Engineering
Senior Software Engineer
2024 - 2024
Walmart
- Improved front-end performance by 10% in one quarter, helping deliver a high-performing user experience at scale.
- Built React modules and integrated Node.js and a 3rd-party API for a high-volume eCommerce platform, collaborating across teams and delivering feature releases.
- Participated in Agile ceremonies, code reviews, and on-call duties, resolving issues quickly and demonstrating strong communication skills in a cross-functional environment.
Technologies: TypeScript, Node.js, React, Redux, GraphQL, A/B Testing, Jest, HTML5, CSS, REST APIs, Software Engineering
Lead Front-end Engineer
2022 - 2024
GlobalLogic
- Reduced delivery time by 50% in 12 months, leading an MVP's end-to-end web application development and contributing to scalable front-end architecture and state design.
- Developed a shared design system in an Agile environment, collaborating with stakeholders to support new features and maintainable code using React Hooks.
- Provided mentorship and light supervision, led code reviews, improved CI/CD workflows, and took a hands-on, proactive role in documenting front-end best practices.
Technologies: TypeScript, Node.js, Redux, GraphQL, CI/CD Pipelines, Kubernetes, Docker, Webpack, Jenkins, Jest, Cypress, Next.js, Scrum, HTML5, CSS, Software Engineering
React/Node.js Software Engineer
2021 - 2022
SSA Group
- Built front-end visualizations for NLP data, focusing on layout, element positioning, debugging, and troubleshooting issues across screen sizes and device contexts.
- Migrated REST APIs to GraphQL and deployed serverless apps via AWS Lambda and Amazon S3 (AWS S3).
- Designed reusable components and integrated them with back-end systems, improving development speed and ensuring a consistent UX across the application.
Technologies: JavaScript, Node.js, GraphQL, React Testing Library, Redux, React, Amazon API, AWS Command Line Interface (CLI), HTML5, CSS, REST APIs
Software Engineer
2018 - 2021
Intetics
- Delivered mobile-responsive React/React Native UIs and built modular components used across internal platforms, including UI mockups and reusable animation libraries.
- Created REST APIs and microservices using Node.js and Django, handling database management and integration with front-end apps to support early-stage feature development.
- Implemented CI/CD pipelines and automated testing workflows to streamline deployment and improve code reliability across staging and production environments.
Technologies: JavaScript, React, Object-oriented Programming (OOP), Redux, MobX, React Native, Node.js, Python, SQL, HTML5, CSS, REST APIs, Django
Experience
Insurance Scenario Comparison Tool
I led the end-to-end development of a web app that allows one to model and compare real-life pricing scenarios for insurance and finance. The main feature was a "Compare" page that let users input any number of scenarios, see differences between them, and live-edit values to trigger instant recalculations. I architected the front end using modular React components and a shared design system built with React Hooks, ensuring scalability and consistency.
The app also tracked scenario version history, allowing users to restore or compare changes between versions. I contributed to CI/CD improvements, mentored junior developers, and documented best practices. The system was built with object-oriented principles to support performance, code reuse, and high user concurrency. I collaborated closely with product and design in an Agile workflow.
The app also tracked scenario version history, allowing users to restore or compare changes between versions. I contributed to CI/CD improvements, mentored junior developers, and documented best practices. The system was built with object-oriented principles to support performance, code reuse, and high user concurrency. I collaborated closely with product and design in an Agile workflow.
Education
2017 - 2021
Bachelor's Degree in Software Engineering
Igor Sikorsky Kyiv Polytechnic Institute - Kyiv, Ukraine
Skills
Libraries/APIs
React, MobX, REST APIs, Node.js, React Testing Library, Amazon API
Tools
Redux Toolkit, Webpack, Jenkins, AWS Command Line Interface (CLI), WebStorm, Slack
Languages
TypeScript, GraphQL, JavaScript, HTML5, CSS, Python, SQL
Frameworks
Next.js, Jest, Redux, Express.js, Cypress, React Native, Django
Paradigms
Scrum, Object-oriented Programming (OOP)
Platforms
Docker, MacOS, Kubernetes
Other
Software Engineering, CI/CD Pipelines, Data Structures, Algorithms, A/B Testing, React Hooks
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