#### ABOUT US Xsolla is a global commerce company with robust tools and services to help developers solve the inherent challenges of the video game industry. From indie to AAA, companies partner with Xsolla to help them fund, distribute, market, and monetize their games.

Grounded in the belief in the future of video games, Xsolla is resolute in the mission to bring opportunities together, and continually make new resources available to creators. Headquartered and incorporated in Los Angeles, California, Xsolla operates as the merchant of record and has helped over 1,500+ game developers to reach more players and grow their businesses around the world.

With more paths to profits and ways to win, developers have all the things needed to enjoy the game. For more information, visit [xsolla.com](https://xsolla.com/ "https://xsolla.com"). #### ABOUT YOU We are looking for a

Senior Frontend Engineer

who is

passionate about building fast, accessible, and delightful user interfaces

to join one of our product engineering teams. The best candidate will be someone who thrives in a fast-paced, highly collaborative, and dynamic setting and is excited to

develop high-quality web applications used by millions of people

• .
• Strong

frontend development skills with deep JavaScript/TypeScript expertise

are essential, along with experience in

building performant, cross-browser, and responsive applications using modern frameworks

. The ability to

create maintainable component systems while delivering an exceptional user experience

will be key to your success in this role. If you care about

craftsmanship, performance, and product quality

and want to

shape the way users interact with products used around the world

, we would love to hear from you! ###

Responsibilities

- 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 (rendering, bundle size, Core Web Vitals) - Collaborate with designers (Figma) to deliver pixel-perfect, consistent implementations - Integrate with backend services and external APIs; 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 #### ABOUT THE TEAM You will join a product engineering team of frontend, backend, QA, and DevOps engineers working closely with Product and Design.

The team owns its features end to end: from implementation and testing to release and monitoring.

Typical Tech Stack

-

Languages

JavaScript (ES6+), TypeScript -

Frameworks

React, Vue, Next.js (SSR) -

State Management

RTK, MobX, Zustand, Pinia -

Build Tools

Vite, Webpack, SWC -

Styling

SCSS, CSS Modules, CSS-in-JS -

Quality Tools

ESLint, StyleLint, Prettier, Husky -

Testing

Unit and E2E testing frameworks -

Infrastructure

Docker, GitLab CI/CD ### Nice to have

Required

Core JavaScript/TypeScript Expertise

• 5+ years of commercial frontend development experience - Advanced proficiency in

JavaScript (ES6+)

, including asynchronous programming (async/await, Promises), prototype-based OOP, classes, and memory management fundamentals - Deep

TypeScript

knowledge: generics, utility types, custom type declarations, and extending library types

Frontend Engineering Skills

• - 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 (

React

,

Vue

• , or similar): reactivity principles, state management, component optimization, and render control -
• Experience with various 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 (e.g., LRU) - Ability to decompose tasks and separate business logic from framework/library code

Tools & Practices

• -
• Experience configuring and optimizing build tools (

Vite

,

Webpack

• ) -
• Experience with code quality tools (

ESLint

,

StyleLint

,

Prettier

• , Biome) -
• Experience writing

unit and E2E tests

• -
• Understanding of

REST API

• fundamentals and experience integrating with external services -
• Experience with

Docker

(configuring and optimizing containers) - Proficiency with

Git

(GitLab) - Confident use of

Figma

for design implementation - Good written and spoken English

Preferred

• -
• Experience with hybrid applications (WebView, React Native) -
• Experience with

Web3 frontend development

: wallet integration (embedded and browser wallets), wallet and signing standards (EIP-1193, EIP-6963, EIP-712),

ethers.js

,

viem

,

wagmi

• Knowledge of

Core Web Vitals

and SEO principles - Experience with web security fundamentals (XSS, CSRF, secure handling of user data) - Experience with frontend performance profiling and monitoring - Experience creating and maintaining design system libraries - Experience leading technical initiatives or mentoring engineers - Practical, up-to-date experience with modern AI tools (e.g.

Claude, Copilot, Cursor) for code generation, review, and accelerating day-to-day engineering work #### IDEAL CANDIDATE - Eager to learn new technologies and approaches - Engaged with business processes and product goals - Detail-oriented with a responsible approach to work - Actively participates in discussions to improve product quality - Motivated to build products that make a difference for users #### BENEFITS We are passionate about fostering a supportive environment for our team, so we prioritize the physical, mental, and emotional well-being of our employees and their families through a comprehensive Benefits Program.

This includes medical, dental, and vision, PTO, and a personalized career roadmap for each employee. By investing in professional development through training and educational opportunities, we ensure that our team thrives both personally and professionally.

Together, we’re not just building a business; we’re cultivating a community that values creativity, collaboration, and the transformative power of play. #### EMPLOYMENT DETAILS -

Location

Remote (worldwide) -

Employment Type

Full-time -

Schedule

10:00–19:00 (flexible) -

Contract

Employment agreement (entity or EOR arranged per candidate location) #### EQUAL EMPLOYMENT STATEMENT Xsolla is dedicated to creating a diverse environment and is proud to be an equal-opportunity employer.

All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, language, sexual orientation, national origin, genetics, political beliefs, disability, age, marital status, social background or other characteristics.

We are committed to compliance with all fair employment practices regarding citizenship and immigration status. #### CONTACT If you have questions regarding our hiring practices, please contact careers@xsolla.com. For more vacancies, visit: https://xsolla.com/careers