Роман

ROMAN SAVKO
FRONTEND DEVELOPER

PROFILE
I’m a Frontend Engineer with 4 years of experience with React and JavaScript.
CONTACT I’m specializing in building intuitive, high-performance web applications. My
deep background as an engineer in telecom gives me a strong foundation to
[відкрити контакти](див. вище в блоці «контактна інформація») approach development systematically, designing scalable, maintainable
solutions aligned with the broader architectural vision. My solutions focus on
[відкрити контакти](див. вище в блоці «контактна інформація») excellent UX, optimized performance, and efficient development workflows.

Dnipro, Ukraine
WORK EXPERIENCE
t.me/frankjaskon
PURRWEB AUG 2024 - PRESENT
Software development company
LANGUAGES Frontend developer
Responsibilities:
English - Upper-Intermediate Participated in Agile development: daily stand-ups, sprint planning,
retrospectives, and estimation.
Led a 3-4 person team on a standalone project, coordinating
TECHNOLOGIES
development and delivery.
AND TOOLS Developed and maintained applications using the company’s stack.
Performed code reviews and provided feedback to ensure code
JavaScript (ES5, ES6+) quality and consistency.
TypeScript Conducted technical interviews and participated in the hiring process.

React Achievements:
Next.js (App & Page Router) Proactively identified a flaw in the authentication flow and introduced
a reliable solution, adopted company-wide and improved overall
Redux, Redux Toolkit,
system stability.
React Native Introduced a clean modular architecture and separated logic into
REST APIs, GraphQL independent services.
Implemented centralized logging, error handling, and session-based
Webpack, Vite
authentication, enabling a release 3 weeks ahead of schedule and
Feature-Sliced Design (FSD) extra focus on system stability.
Monorepo (Yarn Berry) Established a dual-architecture setup: the project runs in monolith
mode in production while a fully isolated microservice version is
Localization (next-intl)
developed in parallel.
Unit & Integration & E2E Built all delivery and migration processes to ensure a seamless, zero-
Testing downtime switch to microservices when ready - fully orchestrated
and maintained by me.
Storybook, UI Optimization,
Migrated infrastructure to Yarn 4+ (Berry) and enabled standalone
Code splitting service builds for isolated execution in containerized environments.
SOLID, KISS, DRY, GRASP
Stack:
HTML
JavaScript, Next.js, React, React Native, React-Admin, Node.js, Fastify,
CSS, SASS, CSS modules, Redux, Redux Toolkit, RTK Query, Zustand, OpenApi, SASS, SCSS
CSS-in-JS Modules, Webpack, Vite, Storybook, TypeScript, Puppeteer, Cypress,
React Hook Form, Zod, Yarn Workspaces, GDPR, Google Tag Manager
Docker
(GTM), Google Analytics (GA4), Cookie Consent (CMP), GitLab, GitLab
GitLab CI/CD , GitHub CI CI/CD, Docker, Docker-compose
EDUCATION Atlantis JAN 2023 - JULY 2024
Software development company (clients BMW Group, MINI Cooper)
Sep 2012 - Jun 2018 Frontend developer
DONETSK NATIONAL Responsibilities:
TECHNICAL UNIVERSITY Led frontend development as the sole developer on a complex e-
(DONNTU) commerce application.
Faculty of Computer and Maintained, refactored, and expanded existing codebases across
multiple projects.
Information Technology
Participated in architectural planning, tech stack discussions, and
Master’s degree. Researcher
structural decisions with the team.
in Electronics and Mentored junior developers and conducted code reviews.
Telecommunications.
Electronics and Achievements:
Telecommunications Engineer Improved full search rendering speed by 8x, drastically enhancing
performance.
Successfully migrated a live application from React 17 to React 18,
Next 12 to Next 14 with no downtime.
Delivered a production-ready React Native exhibition app under tight
deadlines, independently.
Implemented seamless integration between server-side and client-
side caching, eliminating prop drilling and accelerating development
workflows by ~10%.
Improved developer productivity by introducing structured guides
and clear processes, significantly reducing recurring support
workload.
Created a structured troubleshooting guide for recurring client-side
bugs, reducing developer time spent on support cases by 5× and
improving response efficiency in production.
Elevated code maintainability and UI consistency through systematic
refactors and design system improvements.

Stack:
JavaScript, Next.js, React, React Native, Vue, Nuxt, GraphQL, Apolo
client, CSS, SCSS, CSS in JS, Styled components, Webpack,
Storybook, Jest, React-testing library, Cypress, TypeScript, NPM, Yarn,
Yarn Workspaces, Docker, GitHub, GitHub CI

LLC "Proenergy" OCT 2018 - DEC 2021
Designing a high-voltage energy structure
Designer of Telecommunication systems
Responsibilities:
Led telecommunication systems design for large-scale energy
infrastructure projects.
Managed project documentation and defended solutions before
clients and expert panels.
Coordinated site visits and stakeholder meetings, resolving conflicts
throughout all stages.
Achievements:
Successfully delivered high-priority national energy infrastructure
projects under tight deadlines.
Independently modernized backbone communication networks,
overseeing vendor selection, resource planning, and detailed
scheduling.
Streamlined coordination processes, improving delivery timelines and
stakeholder satisfaction across complex technical projects.