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Frontend Engineer

JustMarkets · Ukraine · On-site

Posted Sep 11, 2026

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Responsibilities Develop new features, primarily focused on frontend components Optimize and improve performance across the application Participate in architectural discussions and technical design Conduct code reviews and support production deployments Collaborate in Scrum ceremonies, OKR planning, and team retrospectives Write clear unit/integration tests and maintain documentation for implemented functionality Requirements 5+ years of experience in frontend development, mainly with ReactJS Strong knowledge of TypeScript and JavaScript Experience with state management tools (Zustand, Redux, etc) Experience working with GraphQL and participating in API design Practical experience with WebSocket Experience writing tests with Vitest or similar frameworks (e.g., Jest) Experience with build tools (Vite, WebPack, etc) Experience adopting AI-assisted development tools in daily workflows and critically evaluating and validating AI-generated results Solid understanding of frontend architecture and scalable solutions Experience in optimizing application performance and user experience Ability to work independently and take full ownership of tasks Experience in writing clean, maintainable code and following development best practices English level: Intermediate and above Will be a plus Bachelor’s degree in Computer Science or a related discipline Proven contributions to established open-source projects Hands-on experience developing and maintaining real-time applications Professional background in the fintech domain We offer 20 paid vacation days per year 10 paid sick leave days per year Public holidays as per the company's approved Public holiday list Medical insurance Opportunity to work remotely Professional education budget Language learning budget Wellness budget (gym membership, sports gear and related expenses)