[Hiring] Senior Frontend Engineer @Xsolla

Role Description

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

Qualifications

• 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
• 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
• 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

Benefits

• Comprehensive Benefits Program including medical, dental, and vision
• PTO
• Personalized career roadmap for each employee
• Investment in professional development through training and educational opportunities
• Supportive environment prioritizing physical, mental, and emotional well-being

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.

Contact

If you have questions regarding our hiring practices, please contact [email protected] .

For more vacancies, visit: xsolla.com/careers .