Ростислав

Rostyslav Yashkin
Senior Frontend / Full-Stack Engineer | React, Node.js, TypeScript
[open contact info](look above in the "contact info" section) | [open contact info](look above in the "contact info" section) | Telegram: @Arkant | Ukraine

SUMMARY
Senior Frontend / Full-Stack Engineer with 7+ years of commercial software development experience. Strong hands-on
background in React, TypeScript/JavaScript, Node.js, REST API integrations, HTML/CSS/SCSS, and production web
application delivery. Experienced in technical design, architecture decisions, legacy modernization, API middleware,
performance optimization, testing, CI/CD, and taking features from requirements through production support. Comfortable
working autonomously with incomplete requirements and collaborating directly with designers, backend engineers, QA, and
product stakeholders.

CORE SKILLS
React / Web React, React 19, TypeScript, JavaScript ES6+, HTML5, CSS3, SCSS/SASS, Bootstrap, Responsive UI
Backend / APIs Node.js, Serverless, REST APIs, API middleware, Axios, JSON, WebSockets, WebRTC
Architecture Web application architecture, API integration, component-based architecture, legacy modernization, performance
optimization
Tools Git, GitLab, GitHub, Figma, Postman, Docker, Vite, Webpack, npm, Yarn
Quality / Delivery Jest, React Testing Library, Cypress, ESLint, Prettier, Sonar, Jenkins, GitHub Actions, CI/CD

PROFESSIONAL EXPERIENCE
SoftServe - Cisco Contractor
Software Engineer / Frontend Lead | Dec 2024 - Feb 2026
VS Code Workflow Automation Extension for Hardware Developers
• Built and shipped developer-facing functionality with React 19, TypeScript, Node.js, VS Code Extension API, Bash, Python, and
compiler tooling.
• Led a 4-person engineering team while remaining hands-on in implementation, requirements clarification, POCs, testing, release
preparation, and support.
• Designed maintainable TypeScript structure and automated tests, improving reliability and repeatability of releases.
• Worked directly with users and stakeholders to turn complex workflows into practical product features without relying on fully
detailed specifications.
Technologies: React 19, TypeScript, Node.js, VS Code API, Jest, React Testing Library, Bash, Python
SoftServe - Splunk & Cisco Contractor
Lead Frontend Developer | Mar 2024 - Dec 2024
Unified Network Intelligence Platform
• Led frontend architecture and delivery for a React/TypeScript analytics platform built from scratch.
• Implemented and reviewed data-rich UI functionality, API integrations, configurable dashboards, and SCSS-based interfaces.
• Collaborated with backend developers, QA, BA, PM, designers, and customers to clarify requirements and select practical
technical solutions.
• Improved delivery quality with Jest, React Testing Library, ESLint, Prettier, Husky, Jenkins, and staged deployments.
Technologies: React, TypeScript, SCSS, REST/API integrations, Vite, Jest, Jenkins, Figma, GitHub
SoftServe - Cisco Contractor
Lead Frontend Developer | Aug 2023 - Jan 2024
Electronics Procurement Platform
• Drove React/TypeScript architecture decisions for redesigned business workflows and modernization of a legacy frontend.
• Built and refactored reusable components using React, Redux, MUI, Axios, and custom UI/API frameworks.
• Reduced technical debt and improved maintainability, performance, testability, and release quality.
• Worked with Figma, GitLab, Docker, Jenkins, QA, BA, PM, and engineering stakeholders throughout delivery.
Technologies: React, TypeScript, Next.js, Redux, Axios, SCSS, Docker, GitLab, Jenkins, Figma
SoftServe / Sennder Contractor
Senior Frontend Developer | Aug 2022 - Aug 2023
Integrated Logistics and Bidding Platform
• Delivered and modernized business-critical web functionality across several product teams.
• Built a reusable backend-for-frontend library for internal engineering teams and standardized shared integration patterns.
• Modernized Vue.js modules and delivered microfrontend functionality with TypeScript, Vue 2/3, Axios, Webpack, Jest, and
Cypress.
• Developed reusable UI components and a design system together with designers.
Technologies: TypeScript, JavaScript, Vue.js 2/3, Axios, Bootstrap-Vue, SCSS/SASS, Git

Rostyslav Yashkin | 1
SoftServe - GoPuff Contractor
Senior Frontend Developer | Sep 2021 - Jul 2022
All-in-One Online Grocery Platform
• Developed, refactored, and supported customer-facing web functionality for a large e-commerce product.
• Analyzed existing frontend/backend flows and technical constraints as part of rewrite and modernization planning.
• Improved release confidence through automated testing across desktop web, mobile web, iOS, and Android flows.
Technologies: JavaScript, Vue.js 2, Axios, Jest, Cypress, React Testing Library, Appium
SoftServe - US Healthcare Company
Frontend Developer with Frontend Tech Lead Responsibilities | Oct 2020 - Aug 2021
Healthcare Documentation & Communication Platforms
• Led a 3-person frontend team during migration of a legacy healthcare platform to Vue.js with backend API integration.
• Planned frontend migration, documented technical decisions, collaborated directly with the customer, and delivered new
modules inside an existing system.
• Built a mobile-oriented communication platform from scratch and supported CI/CD, deployment preparation, security measures,
and test coverage.
Technologies: JavaScript, Vue.js 2, Vuex, Axios, SCSS, Java Spring integration, Jest, Cypress, Bamboo
CHI Software - Multiple Projects
Frontend Developer / Full-Stack Developer | Jan 2018 - Jul 2020
Telemedicine, e-commerce, admin dashboards, pet services, smart fitness
• Developed full-stack functionality for a Shopify-based e-commerce product using React and Node.js, including admin interfaces,
API middleware, integrations, and production UI.
• Built responsive interfaces with React, Vue.js, HTML5, CSS3, SCSS/SASS, Bootstrap, and component libraries.
• Implemented real-time product functionality using WebSockets and WebRTC for telemedicine and other interactive applications.
• Delivered features, API integrations, refactoring, code reviews, and production support across small and mid-sized product
teams.
Technologies: React, Node.js, Serverless, Vue.js, HTML5, CSS3, SCSS/SASS, Bootstrap, Axios, WebSockets, WebRTC, Gulp

EDUCATION
Dnipro University of Technology - PhD Student in Computer Science, Oct 2023 - Present
Dnipro University of Technology - Master's Degree in Computer Science, Jan 2022
Dnipro University of Technology - Bachelor's Degree in Computer Science, Jun 2020

LANGUAGES
Ukrainian - Native | English - Upper-Intermediate | Russian - Native

Rostyslav Yashkin | 2