Frontend Developer

We are looking for Frontend Developer:
Work with other team members to understand the requirements, technical solutions and deliver high-quality, well-tested code
Collaborate with other team members (backend, product, marketing, design) for external web services, operators who use internal operating services, and backend engineers who provide API
Work with the team to continuously improve our product's UI and UX to bring the best experiences to users Work closely with other junior engineers, and involve them in constructive and concise code reviews with peers, especially junior ones
Not only implementing new features but also building reusable code/components for future use
Assure that all user input is validated before submitting to the back-end
Analyze, propose, and implement solutions to complex and flexible business features.
Maintain and improve high-quality in-house JavaScript libraries and toolsets following product design guidelines
Other tasks assigned by Manager, Team Lead.