Lead/ Principal Frontend Engineer

freeC's Client

• Lead and mentor frontend engineering teams across Japan and Vietnam.
• Define and execute frontend technical strategy, architecture, and roadmap.
• Develop scalable and high-performing web applications using React.js, Next.js, and TypeScript.
• Maintain high standards for code quality, performance, UX, and accessibility.
• Collaborate closely with product managers, designers, and backend engineers in an agile, global setting.
• Promote best practices in frontend development, testing, and CI/CD automation.
• Oversee and continuously improve the frontend development environment and workflow.
• Support the professional growth of junior and mid-level engineers through mentoring and technical guidance.

Required Qualifications:

• 8+ years of experience in web development, including 5+ years focused on frontend engineering.
• At least 3 years of production experience using React.js and Next.js.
• Solid proficiency in JavaScript, TypeScript, HTML, and CSS.
• Hands-on experience with testing frameworks (e.g., Jest, Mocha).
• Familiarity with CI/CD pipelines (GitHub Actions, CircleCI) and AWS-based infrastructure.
• Proven ability to set technical standards, review code, and mentor engineering teams.
• Fluent in English (TOEIC 750+ or equivalent level; to be evaluated during the selection process).

Preferred:

• Experience leading frontend development in a B2B SaaS environment.
• Strong understanding of web security, performance optimization, and design systems.
• Familiarity with tools such as GraphQL, Playwright, Storybook, and Node.js build tools (e.g., Babel, webpack).

Ideal Candidate Profile

• Excels in cross-cultural collaboration, especially within Japanese–Vietnamese engineering teams.
• Values teamwork, continuous improvement, and innovation over individual achievement.
• Understands the business and user impact of technical decisions.
• Has a strong curiosity for emerging technologies and a passion for creating user-centric products.
• Demonstrates ownership, accountability, and a proactive attitude toward problem-solving.

• 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.