JustJoin.IT Praca zdalna Senior New

Senior Frontend React Engineer (PST Overlap)

Appliscale

⚲ Kraków

24 000 - 28 000 PLN netto (B2B)

Wymagania

  • REST API
  • Java
  • Next.js
  • GraphQL
  • JavaScript
  • React

Opis stanowiska

About the role:  Our client is one of the largest game studios known for its very successful online MOBA and FPS franchises. You will be part of a team that builds the systems and tools that power competitive play - from internal operator tooling used to create and manage tournaments, to player-facing web experiences that support competition at scale. We’re looking for a Senior Frontend Software Engineer to help us design and build complex frontend applications that support tournament creation, account management, and competition workflows. This role will work across internal operator tools as well as contribute to our public-facing experiences. This is a hands-on senior role where you’ll be expected to take ownership of features end-to-end, collaborate closely with product and backend partners, and deliver high-quality, maintainable frontend code. You will work closely with the engineering team in Los Angeles and other locations in the US West Coast. Due to working across multiple time zones, flexibility to attend later meetings on a daily basis is an important factor for success in this role (up to 9-10PM CEST).  Each team member is expected to proactively propose tools, designs, and implementation strategies. Responsibilities: • Design, build, and maintain frontend applications that support tournament setup, configuration, and operations. • Work on complex UI workflows for creating and managing graph-based tournament structures. • Contribute to public-facing web experiences with a focus on performance, usability, and polish. • Collaborate closely with backend engineers, product managers, and designers to translate requirements into robust UI solutions. • Integrate frontend applications with backend services, including GraphQL APIs and Java Spring REST APIs. • Participate fully in team rituals, including 2-week sprints, planning, refinement, and retrospectives. • Take clear ownership of your work - asking questions early, surfacing risks, and caring deeply about the quality of the end results Required qualifications:  • 5+ years of experience with Frontend Technologies • 4+ years of experience with React and Typescript • Bachelor's or higher degree in Computer Science, Software Engineering, or a related field • Senior-level experience building production frontend applications. • Hands-on experience with GraphQL and Next.js, including both SSR and CSR patterns. • Experience integrating frontend applications with backend services (experience consuming Java Spring REST APIs is a plus). • Solid understanding of modern frontend architecture, state management, and component design. • Comfortable working independently in a remote environment while staying engaged and communicative. • Understanding of accessibility standards and guidelines (e.g. WCAG) Nice to have:  • Working with PaaS Vendors like Netlify • Hands-on experience working with Public Cloud, preferably AWS (Lambda/Serverless). • Familiarity with complex data visualization or workflow-heavy UIs. • Experience working on consumer-facing web products at scale. • Familiarity with trading card games (TCGs) and tournament formats (e.g., Swiss rounds, decklists, brackets), or a strong interest in competitive gaming, esports. • Familiarity with testing frameworks (e.g. JEST, RTL. Playwright) • Experience with observability and monitoring tools, preferably Datadog