Senior Frontend Developer

• Strong experience with HTML, CSS, JavaScript, TypeScript
• Hands‑on experience with Web Components / Lit and Node.js / npm ecosystem
• Experience with testing frameworks, such as Vitest

Nice to have:

• Experience with CI/CD processes
• Familiarity with Kafka
• Familiarity with NinjaFork
• Familiarity with message queue solutions (MQ)

• Design and implement complex, interactive user interfaces and single‑page applications using TypeScript and JavaScript
• Define and maintain frontend architecture, including best practices for state management and component reusability
• Analyze and optimize application performance, including load times and Core Web Vitals
• Collaborate with backend engineers, UX/UI designers, and product managers
• Integrate frontend applications with REST and GraphQL APIs
• Support delivery of product features in a cross‑functional environment

Preferred location - Gdańsk, Gdynia, Warsaw. Hybrid setup required: 2 days/week in the office, 3 days per week starting September.