Frontend Engineer (JavaScript) - Captcha

Top 3 reasons to join us

• Healthcare plan for you and your family
• A work-life balance (Hybrid, Workation)
• Competitive package

Job description

Your daily tasks: 

• Design and implement the NAVER Captcha SDK
• Conduct research on CAPTCHA technologies using AI

Your skills and experience

Your background:

• 4+ years of experience in front-end development using ReactJS, Next.js, JavaScript, and HTML/CSS
• Strong understanding of JavaScript and core web technologies
• Hands-on experience with cross-browser and cross-device development
• Passion for discussing frontend system stability and scalability
• Solid understanding of asynchronous request handling, AJAX, Node.js, and SSR
• Familiarity with data structures, algorithms, and distributed service architecture
• Experience with front-end performance optimization and debugging tools (e.g., Chrome, Safari DevTools)
• Experience with CI/CD pipelines and unit testing frameworks
• Proven ability to collaborate across multiple teams to deliver high-quality products

It’s a big plus if you:

• Experience developing SDKs or CAPTCHAs, or strong motivation to learn
• Experience integrating code obfuscation and protection techniques into client-side applications
• Experience developing video content platforms, especially short-form or media-rich services
• Experience working on large-scale, high-traffic frontend systems

Why you'll love working here

From solid welfare programs to autonomy over working time and place, we create the culture in which we work. By joining NAVER VIETNAM, you will be involved in:

• A work-life balance: Hybrid working model with modern city-center offices, 14 days of annual leave (increasing yearly) and an additional day off for your birthday.
• Competitive income package: Comprehensive package with full salary insurance, 13th month salary, annual performance appraisals, and incentive bonuses. 
• Learning and development opportunities: Monthly book allowance and an annual budget for online/offline courses (Udemy, Coursera, etc.) in tech, languages, and soft skills,...
• Protecting and enhancing healthcare plan for you and your family: Premium insurance for employees and 2 family members, plus annual health check-ups.
• Employee's engagement activities: Respectful, engaging culture with monthly team budgets, social clubs, and celebration gifts.
• Working environment: Driven by "Autonomy –  Challenge – Teamwork" values, with talented colleagues, supportive leaders, and modern devices supported such as Macbook Pro 14, Macbook Air 14, Dell 7450 Ultra 7,...
• Dedication bonus: Recognizing your commitment and contributions with special bonuses and benefits at key work milestones.
• Other benefits: Home office setup allowance, happy hours, attractive referral bonus, and more!