Full-stack Software Engineer (ShopBuilder)

ABOUT YOU   We are looking for an Intermediate / Senior Frontend Developer to join a team responsible for building the platform powering all user-facing experiences.  This role offers a unique opportunity to collaborate with both local and international teams, focusing on user-centric software that elevates the digital experience for Xsolla’s global audience. In this role you will have the opportunity to contribute in building high-performance frontend solutions used by game developers worldwide. This position requires strong frontend and platform-level experience, the ability to work on complex technical initiatives, and the capability to support predictable, reliable delivery.   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.

Responsibilities:

Build and evolve scalable, high-performance web applications using React and Node.js 

Collaborate with product managers, designers, and backend engineers to translate complex requirements into intuitive user experiences.

Participate in code reviews, share best practices, and help maintain high engineering standards within the frontend team. Work closely with DevOps to streamline CI/CD pipelines, improve deployment reliability, and enhance observability through metrics and monitoring tools.

Own features end-to-end — requirement refinement, implementation, testing, and delivery. Optimize frontend performance, focusing on loading times, rendering speed, and bundle efficiency.

Ensure cross-browser and multi-device compatibility while meeting accessibility (a11y) and usability standards.

Contribute to  modernization, refactoring, and performance enhancements to keep the platform scalable, maintainable, and aligned with product goals.

Contribute and enforce engineering best practices across coding, documentation, testing, and review processes.

Ensure strong automated test coverage and reliable CI/CD workflows that reduce manual effort and improve delivery predictability.

Own operational excellence, including incident response, root-cause analysis, and long-term reliability improvements.

Advocate for scalability, performance, security, and observability across the platform’s architecture and tooling.

Identify technical risks, estimate complexity, and communicate trade-offs to leadership and stakeholders.

Qualifications & Skills:

4+ years of software development experience with strong expertise in modern frontend engineering at scale.

Deep hands-on knowledge of React including component architecture, SSR patterns, RSC, and complex UI data flows. Proficiency with Node.js and MongoDB for server-side functionality.

Strong understanding of modern styling systems and theming approaches (vanilla-extract, styled-components, design tokens).

Solid TypeScript practices, including strict typing, shared contracts, and schema validation (Zod or equivalent).

Experience with Module Federation.

Good understanding of bundling and compilation, experience with webpack/rollup/vite/esbuild

Experience with automated testing frameworks (Vitest/Jest) and end-to-end testing (Playwright/Cypress).

Good understanding of backend integration patterns (REST, GraphQL, RPC-style APIs).

Experience with CI/CD workflows (GitLab CI or similar), private registries, and secure artifact handling.

Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field.

Nice to Have:

Experience building platforms or tooling used across multiple frontend teams (design systems, template engines, configuration frameworks).

Experience with react-native/mobile experience.

Knowledge of performance optimization strategies for client-side and server-side rendering.

Understanding of accessibility, internationalization, and semantic UI design best practices.

Experience developing SDKs, CLI tools, or developer-facing automation.

Familiarity with event-driven UI flows, real-time interfaces, or edge-rendering strategies.

Background improving developer platforms, observability stacks, or performance monitoring systems.

Comfort with UI-as-data approaches and leveraging AI-assisted/no-code tooling to accelerate feature delivery.