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Principal Frontend Engineer (ReactJS/AI)

freeC's Client
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Full time
Hiring 1 people
8 years of experience
Ho Chi Minh
Published 06/06/2025

Job Description

  • Oversee the development of the AI Agent platform or application from scratch, ensuring top-notch performance, responsiveness, and user experience.
  • Design and build complex user interfaces that work seamlessly with backend APIs, real-time agent outputs, and developer tools.
  • Work closely with design and product teams to turn user requirements and business objectives into scalable, elegant user interfaces.
  • Identify and integrate modern tools, frameworks, and practices to boost frontend engineering productivity and code maintainability.
  • Mentor and support the professional growth of team members by helping them enhance their frontend expertise and apply best practices.
  • Provide technical leadership within a cross-functional team—spanning frontend, backend, AI, and SRE engineers, and steer the overall development process.


REQUIREMENTS

Technical

Essential:

  • 8+ years of experience in web development.
  • At least 3 years of hands-on experience with React.js and TypeScript.
  • Strong knowledge of:
  • Modern frontend architecture and state management (e.g., Redux, Context API).
  • Component-based UI design and performance tuning.
  • Frontend testing frameworks (e.g., Mocha, Jest).
  • Browser rendering mechanics and accessibility standards.

Experience with:

  • Next.js and Webpack.
  • Git-based version control workflows.
  • Docker and containerized development.
  • Monitoring and debugging using tools like Datadog or Rollbar.
  • Deploying and maintaining frontend applications in production.
  • Agile development processes.

Preferred:

  • Experience with:
  • Integrating AI APIs, particularly LLM-based outputs.
  • Reading and navigating backend code (Python/FastAPI).
  • MySQL or basic relational database principles.
  • Additional experience with:
  • B2B SaaS product development, especially for back-office solutions.
  • Collaborating on API design and integration with backend engineers.
  • Web performance profiling and monitoring web vitals.
  • Infrastructure as Code (IaC) and CI/CD pipeline automation.

Communication

  • Proven experience leading a project or serving as a team lead (required for leader positions).
  • Experience mentoring or coaching team members.
  • Strong sense of ownership and accountability.
  • Business-level proficiency in English (reading and writing).

Skills

React.js
Artificial Intelligence

Benefits

  • Full salary during the probationary period
  • Performance and salary review: twice/ a year in June and December
  • 13th-month salary
  • Monthly and biannual Recognition Awards
  • An annual health check is provided
  • Various insurances, including Social Security, Health, and Unemployment Insurance, are applied during the probation period. 
  • Private health and accident insurance are also included, with additional benefits for family members at the Managing level.
  • The hybrid working model allows for 3 days of remote work and 2 days in the office, with flexible start times.
  • The facility is well-equipped, providing items such as a MacBook Pro and additional monitors. 
  • Employees are entitled to 16-24 paid days off, with extra paternity leave days available.
  • The company sponsors foreign language and international technology-related certifications.
  • Annual company trips, quarterly team-building activities, and recreational clubs such as billiards and running.
  • Employees have access to external and internal training courses, soft skills workshops, and technical seminars.

Career

Company Info

freeC
Ho Chi Minh
101-300 employees

About

freeC is the Smart Recruiting Platform that leverages matching technology to actively connect hundred of thousand of employers and job seekers. The success of freeC is determined by our success in operating as a unified team. If you're interesting, ambitious, and eager to advance your career with us, explore our vacancies as below. We're excited to have you on board our ship to help us grow fast, deliver on our mission of actively connecting employers and job seekers around Vietnam

Working Address

Lầu 06, Tòa nhà BCONS TOWER II , Số 42/1, Đường Ung Văn Khiêm, Phường 25, Quận Bình Thạnh, TP. HCMView map