Principal Frontend Engineer (Cloud BI - ReactJs)

Architecting & Developing Modern Applications - Design, build, test, and optimize frontend systems using the latest web technologies.

User-Centered Design - Partner with product managers and designers to craft accessible, engaging, and visually impactful interfaces that support business objectives.

Rigorous Testing & Quality Assurance - Implement and maintain unit, integration, and end-to-end test suites with tools like Jest, React Testing Library, Cypress, and Playwright to ensure application reliability.

Seamless API Integration - Develop efficient, real-time interactions between frontend and backend services, ensuring secure authentication and authorization mechanisms.

Performance Optimization - Continuously monitor, profile, and refine frontend performance for a smooth and consistent user experience.

Clean & Maintainable Code - Write structured, well-tested, and scalable code that adheres to engineering best practices.

Cross-Functional Collaboration

Mentorship & Knowledge Sharing - Guide and support junior engineers through code reviews, technical discussions, and best practices.

Previous professional involvement in frontend web development for over five years.

Over three years of hands-on experience with React.js and TypeScript.

Component-based architecture and modern state management (e.g., Redux, Context API).

Implementing web performance optimization techniques, especially concerning the efficient rendering of numerous and complex data visualizations, including expertise in lazy loading, bundle optimization, critical rendering path, effective caching strategies, and profiling tools.

Cross-browser compatibility and accessibility best practices.

Web security fundamentals (e.g., XSS, CSRF, injection attacks) pertaining to frontend development.

Vite, Turbo, Webpack, or other modern build tools.

Practical exposure to data visualization libraries (e.g., D3.js, Chart.js, Recharts).

Consuming and integrating GraphQL-based or RESTful APIs, including secure handling of authentication tokens (e.g., JWT) and implementing authorization checks on the client side.

CI/CD pipelines and Git-based workflows.

Docker and containerized development environments.

Operating and debugging frontend applications in production environments.

Agile development processes.

Experience with server-side rendering (SSR) to improve initial page load performance, SEO capabilities, and deliver dynamic web content.

Advanced experience in data integration from multiple, diverse backend services (e.g., GraphQL, RESTful APIs) in a microservices environment, including practical knowledge of data orchestration, managing data consistency across sources, and optimizing data fetching for high-performance BI applications.

Familiarity with backend development or reading backend code (e.g., Golang, Python) especially in understanding how data is structured and exposed from various microservices.

Familiarity with cloud platforms (e.g., AWS) and frontend monitoring tools (e.g., Datadog, Sentry).

Experience working in Agile environments and contributing to design reviews or sprint planning.

Strong collaboration skills with experience working in cross-functional engineering teams.

Experience mentoring or supporting the growth of other frontend developers.

High sense of ownership, accountability, and proactive problem-solving mindset.

Business-level English proficiency (reading and writing required; conversational is a plus).

Employees have the flexibility to work two days in the office and three days from home

Work hours are flexible, with the option to start between 8AM-9AM from Monday to Friday

Full salary during the probation period

Eligibility for various insurance benefits, including social, health, and unemployment insurance, as well as private health and accident insurance

Additional perks such as a 13th-month salary, 16-24 paid days off, and paternity leave

Opportunities for annual company trips, quarterly team building activities, and participation in billiards and running clubs

Access to an annual health check and well-equipped facilities, including a MacBook Pro and additional monitor

Clearly defined career paths for employees

Sponsorship for foreign language and international technology-related certifications

Access to both internal and external training courses, soft-skill workshops, and tech seminars

Recognition awards and biannual performance and salary reviews (in June and December)

PEGASI – IT Recruitment Consultancy | Email: recruit@pegasi.com.vn | Tel: +84 28 3622 8666