Frontend Developer (React) jobs in United States
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Київстар · 1 month ago

Frontend Developer (React)

Kyivstar.Tech is a Ukrainian hybrid IT company and a subsidiary of Kyivstar, one of Ukraine's largest telecom operators. They are looking for a Frontend Developer (React) to join their Product Development Team, where the role involves collaborating on product tasks and implementing application architecture.

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Comp. & Benefits

Responsibilities

Collaborate with Web Dev Team and Head of Technology in real and interesting product tasks (support 30% and development 70%)
Selection and implementation of the necessary tools, technologies, and techniques
Designing and implementing of an application architecture
Code review and code quality control
Writing optimized code if needed

Qualification

React JSState management (Redux/Flux)OOPFunctional programmingCSS methodologiesOptimizationGitPlatforms GitHubPlatforms GitLabTypescript architectureRESTSOA conceptsCI/CD principlesES6/ES7/ES8 standardsDocker containersLinux-based OSBashSoftware design patternsDistributed applications design principles

Required

Understanding OOP and Functional programming design patterns
3+ years of experience with development of web application
Professional experience with React JS (2+ years)
Experience making interactive and performant web UIs with React JS
Experience with state management using Redux / Flux
Strong knowledge and experience with CSS: methodologies, tools, optimization, page rendering
Fluent knowledge of git and platforms (GitHub, GitLab)
Experience work with hooks and using typescript architecture
Understanding and usage REST, SOA concepts
Understanding of ES6/ES7/ES8 standards
Understanding of CI/CD (principles, instruments)

Preferred

Experience with high load projects
Experience with developing on Node.js
Strong understanding | usage of SOLID principles and software design patterns
Strong understanding the design principles of distributed applications
Experience with Docker containers
Ability to setup required development environment
Experience with Linux-based OS, Bash

Benefits

Performance bonuses for everyone (annual or quarterly — depends on the role)
We train employees: with the opportunity to learn through the company’s library, internal resources, and programs from partners
Health and life insurance
Wellbeing program and corporate psychologist
Reimbursement of expenses for Kyivstar mobile communication

Company

Київстар

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Київстар – найбільший український оператор електронних комунікацій, що станом на березень 2023 року обслуговував 24,3 млн абонентів мобільного зв’язку та понад 1,1 млн абонентів «Домашнього інтернету».

Funding

Current Stage
Public Company
Total Funding
$600M
Key Investors
VEON
2025-08-15IPO
2025-08-13Acquired
2023-06-21Corporate Round· $600M
Company data provided by crunchbase