Senior Frontend Engineer

Xsolla

. Develop and maintain high-quality frontend applications and features .

Posted 10/6/2026full-timeRemote • RussiaSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates advanced proficiency in JavaScript and TypeScript, with a strong focus on building high-quality, maintainable frontend applications. Capable of optimizing performance and collaborating effectively with cross-functional teams using tools like Figma and Docker.

Highest-signal resume keywords

JavaScript (ES6+)TypeScriptReact or VueCSS (SASS/SCSS)Docker

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Frontend DevelopmentUnit TestingE2E TestingComponent SystemsState ManagementSSR/Isomorphic ApplicationsWeb StandardsAccessibility Best PracticesData StructuresAlgorithm Complexity

Soft Skills

MentoringCollaborationCommunication

Tools & Technologies

FigmaGitGitLabViteWebpackESLintStyleLintPrettier

Industry Keywords

Cross-Browser LayoutsCross-Platform LayoutsAPI IntegrationBuild ToolingCI/CD Pipelines

Tech Stack

Tools & technologies

DockerJavaScriptReactSCSSTypeScriptVue.jsWebpack

About the role

Key responsibilities & impact

Develop and maintain high-quality frontend applications and features
Write clean, maintainable, well-tested code with comprehensive unit and E2E test coverage
Build semantic, adaptive, cross-browser, and cross-platform layouts following web standards and accessibility best practices
Design and implement reusable component systems and contribute to the shared UI library
Optimize application performance, including rendering, bundle size, and Core Web Vitals
Collaborate with designers using Figma to deliver pixel-perfect, consistent implementations
Integrate with backend services and external APIs, and agree on API contracts with backend engineers
Configure and improve build tooling, CI/CD pipelines, and Docker environments
Participate in code reviews, technical discussions, and architectural decisions
Mentor Middle and Junior engineers and contribute to improving product quality
Work within a product engineering team of frontend, backend, QA, and DevOps engineers alongside Product and Design
Own features end to end, from implementation and testing to release and monitoring

Requirements

What you’ll need

5+ years of commercial frontend development experience
Advanced proficiency in JavaScript (ES6+), including asynchronous programming, prototype-based OOP, classes, and memory management fundamentals
Deep TypeScript knowledge, including generics, utility types, custom type declarations, and extending library types
Advanced experience with semantic, adaptive, cross-browser, and cross-platform layouts
Understanding of web standards and accessibility
Strong CSS skills, including SASS/SCSS and CSS-in-JS solutions
Experience with modern frameworks such as React, Vue, or similar
Experience with state managers
Experience with SSR/isomorphic applications
Experience building component systems, including the compound components approach
Understanding of data structures, algorithm complexity, and common design patterns
Knowledge of basic caching techniques, such as LRU
Ability to decompose tasks and separate business logic from framework/library code
Experience configuring and optimizing Vite or Webpack
Experience with ESLint, StyleLint, Prettier, or Biome
Experience writing unit and E2E tests
Understanding of REST API fundamentals and experience integrating with external services
Experience with Docker
Proficiency with Git and GitLab
Confident use of Figma for design implementation
Good written and spoken English

Benefits

Comp & perks

Medical, dental, and vision insurance
Paid time off (PTO)
Personalized career roadmap
Professional development through training and educational opportunities
Flexible schedule
Employment agreement with entity or EOR arranged per candidate location