Senior Frontend Engineer

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.

We are hiring a Senior Frontend Engineer for two platform products:

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  5+ years of commercial frontend development

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  TypeScript in strict mode: generics, utility types, discriminated unions, typing module boundaries and external data

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  JavaScript at the platform level: event loop, asynchrony, closures, memory. You can find a leak and explain its cause

• Deep experience with React: rendering model, profiling, eliminating unnecessary re-renders

• Separating local, server and global state, and justifying the choice of tool; reasoning about when SSR is worth it

• Semantic, responsive, cross-browser layout; modern CSS (CSS Modules, CSS-in-JS)

• Accessibility: ARIA, keyboard navigation, screen reader support

• Performance analysis: profiling, bundle analysis, Core Web Vitals

• REST API integration: error handling, retries, request cancellation, contract alignment with backend

• Web security fundamentals: XSS, CSRF, CSP, secure handling of tokens, sessions and user data

• Testing at the right level: unit, integration, E2E

• Git, CI, Docker, linters and formatters

• Daily hands-on use of AI coding tools (Claude Code, Codex, Cursor) for development and review, including configuring them for a repository

• Reading technical documentation in English

• Experience in security-sensitive domains: authentication and identity (OAuth2/OIDC flows on the frontend), payments, crypto wallets

• Web3 frontend: wallet integration (embedded and browser wallets), EIP-1193, EIP-6963, EIP-712; viem, wagmi, ethers.js

• Next.js or Nuxt, SSR in production

• Design systems and component API design, UI kits

• Hybrid applications: WebView, React Native

• Decisions in writing. Significant technical decisions are written up as an RFC or ADR that lays out the options and trade-offs. We discuss the document, not a blank whiteboard.

• AI is part of everyday engineering. We use AI coding tools for development and review, and we treat configuring them for a codebase as real engineering work.

1. Intro call. Your background, your motivation and the role.

2. Technical interview. Built directly on the What you will own and Required sections above. We won't ask about anything this posting doesn't promise.

3. Bar raiser. An engineer from outside the hiring team checks that you raise the overall engineering bar.

You will work alongside product managers, designers, frontend and backend engineers, and QA.

• Location: Remote 

• Employment Type: Full-time

• Schedule: 10:00–19:00 (flexible)

• Contract: Employment agreement (entity or EOR arranged per candidate location)

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.

If you have questions regarding our hiring practices, please contact careers@xsolla.com. For more vacancies, visit xsolla.com/careers.