Salary not disclosed
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Role overview
Job description
WHAT YOU WILL OWN
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The frontend of your product area end to end: shaping tasks with Product and Design, implementation, release and production monitoring
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Technical decisions for that frontend. You make them and justify them in writing, rather than only implementing someone else's
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The architecture of frontend applications and the shared UI library / SDK that other teams build on
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Measurable frontend quality: performance, reliability and security of user flows
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Design and build user flows: sign-in, account management, wallet onboarding and transaction signing
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Track how these flows behave in production (errors, performance, drop-offs) and act on what you see
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Make architectural decisions for frontend applications and document them
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Develop the shared component library and frontend SDKs used by other Xsolla teams
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Agree API contracts with backend engineers, including error handling, retries and edge cases
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Own performance budgets: Core Web Vitals and bundle size
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Improve the engineering environment: build, linters, tests, CI
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Review code
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Set up and maintain AI tooling in the repositories (Claude Code, Codex, Cursor: rules, context, harness) so the team uses it effectively
WHAT YOU WILL DO
Language and platform
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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
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Deep experience with React: rendering model, profiling, eliminating unnecessary re-renders
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Separating local, server and global state, and justifying the choice of tool; reasoning about when SSR is worth it
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Semantic, responsive, cross-browser layout; modern CSS (CSS Modules, CSS-in-JS)
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Accessibility: ARIA, keyboard navigation, screen reader support
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Performance analysis: profiling, bundle analysis, Core Web Vitals
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REST API integration: error handling, retries, request cancellation, contract alignment with backend
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Web security fundamentals: XSS, CSRF, CSP, secure handling of tokens, sessions and user data
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Testing at the right level: unit, integration, E2E
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Git, CI, Docker, linters and formatters
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Daily hands-on use of AI coding tools (Claude Code, Codex, Cursor) for development and review, including configuring them for a repository
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Reading technical documentation in English
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Experience in security-sensitive domains: authentication and identity (OAuth2/OIDC flows on the frontend), payments, crypto wallets
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Web3 frontend: wallet integration (embedded and browser wallets), EIP-1193, EIP-6963, EIP-712; viem, wagmi, ethers.js
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Next.js or Nuxt, SSR in production
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Design systems and component API design, UI kits
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Hybrid applications: WebView, React Native
Frameworks and state
UI quality and performance
Integration and security
Engineering practices
AI-assisted engineering
English
About this listing
- Source: Xsolla's official careers site (via Lever) · last confirmed on the source 29 Oct 2026
- Posted 6 Oct 2026
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What they are looking for
Skills & requirements
Qualification
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
Hiring company
Xsolla
Find out how you can launch, monetize and scale your video games worldwide, with no upfront costs, using Xsolla's comprehensive suite of tools and services.
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