Ігор

Maksymchuk Ihor Frontend Engineer
[open contact info](look above in the "contact info" section) [open contact info](look above in the "contact info" section)

Kyiv, Ukraine [open contact info](look above in the "contact info" section)
199903117

Education

Bachelor’s, Dragomanov Ukrainian State University 09/2000 – 05/2006

Professional Experience

SANDSIV, Lead Frontend Developer 10/2019 – 04/2026

SANDSIV, Mid-level Frontend Developer 04/2017 – 09/2019

Trust Sourcing, Frontend Developer 04/2016 – 11/2017

SEOCOMP, Frontend Developer 12/2013 – 03/2016

Web Designer 12/2010 – 12/2013

Skills
React, Redux, redux-thunk, reselect, Redux Next.js
Toolkit
HTML, CSS, SASS
JS, TypeScript
React Final Form, d3.js, i18next
Webpack, Vite
REST API, GraphQL, WebSocket
Bootstrap, Reactstrap, Storybook
Nx, Rspack
Node.js

Docker

Languages

Ukrainian English
Intermediate (B1, currently
studying)

Summary

Senior Frontend Engineer / Technical Lead with 8+ years of frontend development experience, including 5+ years
building React and TypeScript applications. Experienced in frontend architecture, technical leadership, legacy project
modernization, microfrontend solutions, and performance optimization. Focused on maintainable technology stacks,
pragmatic adoption of new tools, systematic root-cause analysis, and effective collaboration across teams.
 Selected Achievements

Dashboard Platform & Data Visualization Frontend Modernization
Designed and built a scalable virtualized dashboard Led a major frontend modernization initiative: migrated
platform with configurable chart widgets, multi-page the application from React 16 to React 18 and from
layouts, drag-and-drop, resizing, cross-page widget Create React App (CRA) to Vite, refactored the codebase,
management, and real-time WebSocket updates. upgraded key dependencies, and established the
Implemented dynamic chart rendering based on data foundation for automated testing with Vitest and
types and display rules, ensuring maintainability, Playwright.
extensibility, and UI performance.
Performance Optimization
Survey Widget & Integration API Optimized legacy React applications through code
Designed and built from scratch an embeddable, splitting with React.lazy and Suspense, progressive
remotely configurable survey widget for third-party content loading, virtualization of large tables and lists,
websites, supporting conditional flows, chatbot-like and targeted reduction of unnecessary re-renders.
presentation modes, answer editing, back navigation, Validated improvements using Chrome DevTools, React
and resumable survey progress. Created a JavaScript Profiler, Lighthouse, and bundle analysis tools.
API and event-driven integration layer for passing
custom data and controlling the survey lifecycle from Technical Leadership & Delivery
the host application. Coordinated frontend delivery across the team: clarified
scope, estimated and distributed tasks, facilitated
Multilingual Form Builder technical discussions, mentored teammates, and
Built complex admin-facing multilingual form builders supported complex technical problem-solving.
with dynamic fields, conditional logic, and configurable
flows. Enabled users to automatically generate End-to-End Ownership
translated versions of existing content across multiple Led the end-to-end development of frontend features,
languages, switch between locales, edit translations from requirements analysis and implementation to
independently, and configure fields that appear based debugging, production support, and maintenance.
on previous answers.

Microfrontend Architecture
Designed and configured a microfrontend architecture
using React, TypeScript, Nx, Rspack, and Module
Federation.