Principal Frontend Engineer (ReactJS/AI)

Job Description

We are looking for a frontend engineer to lead the development of our AI Agent platform/application from the ground up. The ideal candidate has experience building complex web applications, crafting intuitive user experiences, and collaborating effectively with cross-functional teams.

Responsibilities

• Lead frontend development of the AI Agent platform or application from scratch, ensuring high performance, responsiveness, and usability

• Design and implement complex UIs that interact seamlessly with backend APIs, real-time agent outputs, and developer toolchains

• Collaborate with design and product teams to translate user needs and business goals into elegant, scalable interfaces

• Introduce tools, frameworks, and development practices to improve frontend engineering efficiency and maintainability

• Mentor and support the growth of team members by helping them deepen their frontend expertise and best practices

• Take technical leadership across a cross-functional team—including frontend, backend, AI, and SRE engineers—and drive the overall development process

Requirements

• Technical

  • Must have

    • 5+ years of experience in web development

    • 3+ years of experience with React.js and TypeScript

    • Solid understanding of:

      • Modern frontend architecture and state management (e.g., Redux, Context API)

      • Component-based UI development and performance optimization

      • Frontend testing frameworks (e.g., Mocha or Jest)

      • Browser rendering behavior and accessibility best practices

    • Experience with:

      • Next.js and Webpack

      • Git-based development workflows

      • Docker and containerized development environments

      • Monitoring and debugging with tools like Datadog, Rollbar

      • Operating and maintaining frontend applications in production environments

      • Agile development processes

  • Nice to have

    • Experience with:

      • Integration with AI APIs (e.g., LLM-based outputs)

      • Reading or navigating Python (FastAPI) backend code

      • MySQL or basic relational database understanding

    • Practical knowledge in:

      • B2B SaaS product development, especially for back office domains

      • Collaborating with backend engineers on API design and integration

      • Performance profiling and web vitals monitoring

      • Infrastructure as Code (IaC) and CI/CD pipeline automation

• Communication

  • Experience leading a project as a team lead (required for Leader position)

  • Experience mentoring or educating team members

  • Strong sense of ownership and accountability

  • Business-level English (reading & writing)