Senior Frontend Engineer

We’re expanding our team at JustMarkets and looking for a motivated and enthusiastic Senior Frontend Engineer to join our team! Join us and become part of a team that values collaboration and fresh ideas!

• 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

• 5+ years of experience in frontend development, mainly with ReactJS
• Strong knowledge of TypeScript and JavaScript
• Experience with state management tools such as Zustand
• 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 like Vite
• 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
• 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

• Qualified assistance and support for Ukrainian private entrepreneurs
• 20 paid vacation days per year
• 10 paid sick leave days per year
• Public holidays according to current Ukrainian legislation
• Medical insurance for employees
• Compensation for professional education and learning English
• Compensation for a sports subscription or sports equipment