Backend Engineer - nCaptcha

Key Responsibilities

• Design and implement the Captcha SDK.
• Research and develop AI-driven CAPTCHA technologies.

Requirements

• 3+ years of experience in backend Java development for large-scale, high-traffic systems.
• 2+ years of hands-on experience with Java Spring Framework.
• Proficient with at least one RDBMS.
• Experience with JavaScript for dynamic web applications.
• Understanding of MSA and RESTful backend design principles.
• Basic English communication and a collaborative mindset.

Preferred Qualifications

• Full-stack development experience.
• Experience managing massive-traffic backend systems.
• Knowledge of Big Data analytics.