Javascript Developer

📋 Description

• Develop scalable, modular, and high-performance frontend solutions utilizing React, NextJS, AstroJS, and TypeScript with contemporary tools in accordance with team architecture guidelines.

• Create features that manage real-time data updates, facilitate swift user interactions, and navigate complex state management, thereby enhancing the team's performance and scalability objectives.

• Collaborate closely with product, design, quality, and backend teams to deliver features efficiently and with high quality.

• Produce clean, maintainable code that adheres to team coding standards and best practices.

• Actively contribute to the shared component library and design system by developing reusable components that align with established patterns.

• Assist in code reviews within the team, offering constructive and actionable feedback.

• Engage in incident response and support root cause analysis for production issues.

• Participate in the on-call rotation.

• Identify high-impact opportunities where AI can streamline efforts.

• Create repeatable prompting workflows for: Generating components in line with the design system, producing tests from stories/specs, preparing for code reviews, analyzing component performance, providing architectural reasoning (state boundaries, component splitting, folder structure), intelligent debugging (tracing render loops, race conditions, stale closures), and detecting anti-patterns in PRs prior to review.

⛳️ Requirements

• Proven experience (5+ years) in modern frontend development using React, TypeScript, and CSS.

• In-depth understanding of React patterns, hooks, component lifecycle, and rendering behavior.

• Strong knowledge of state management tools (Redux Toolkit, Zustand, or similar), web performance, and testing methodologies.

• Familiarity with web standards, accessibility fundamentals (WCAG), and responsive design principles.

• Basic knowledge of SSR frameworks such as Next.js.

• Proficiency with Express.js and Node.js.

• Understanding of WebSocket technology (socket.io).

• Experience with Svelte.

• Previous experience in developing live data applications, such as financial trading or similar real-time environments.

• Familiarity with odds updates or real-time event tracking is a significant advantage.

• Comfortable working with CI/CD pipelines and automated testing methods (unit, integration).

• B2 level proficiency in English (both written and spoken).

• Ability to assess AI-generated outputs for architectural compatibility and code quality.

• Experience using AI not only for code generation but also for refactoring.

• Awareness of AI's limitations and the capacity to critically evaluate AI-generated code prior to integration.

🏝️ Benefits

• 22 days of annual leave.

• 10 days of public/national holidays.

• Health insurance options.

• Access to online learning platforms.

• On-site English classes available in select countries, among other benefits.