[Japan AI] Frontend Engineer

by | Jan 12, 2026

Company overview

https://www.genieegroup.com/

http://en.geniee.co.jp/

With high–tech advantage, Geniee is one of the leading Supply Side Platforms (SSP) in Asia, being headquartered in Japan. 

Invested by Softbank group (one of the largest Japanese mobile carriers), Geniee is expanding business across Southeast Asia and the US. According to the Deloitte Technology Fast 500 Asia Pacific 2016 Ranking, Geniee ranked in the top 200 of companies in APAC. 

Geniee Vietnam was established in 2013 in Hanoi with 5 members and now expanded to nearly 100 employees. We are looking for potential candidates who are expected to be core members of Geniee Vietnam. To be part of the Geniee group, you will have the chance to work in a challenging international working environment with passionate and friendly colleagues.

Apply and become a Genieer today!

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Title: Frontend Engineer 

Location: HANOI

Job category: Technical – Digital Marketing/ Information Technology 

Industry: Advertising    .

Job description: 

  • Design, develop, and maintain frontend applications and user interfaces for AI-powered products, focusing on performance, usability, and scalability.
  • Collaborate closely with backend, AI engineers, and PdMs to implement frontend features and integrate with backend APIs and AI services.
  • Build new frontend features, fix bugs, and continuously improve the user experience of web applications.
  • Write clean, maintainable, and high-performance frontend code following best practices.
  • Ensure the performance, quality, and responsiveness of frontend applications across browsers and devices.
  • Participate in discussions to improve frontend architecture, development workflow, and UI/UX standards.
  • Collaborate with cross-functional teams to define, design, and ship new frontend features.
  • Continuously explore and adopt new frontend technologies and tools to improve development efficiency.

Job requirements: 

Must have: 

  • Bachelor’s degree or higher in Information Technology or a related field
  • Minimum 3 years of experience in frontend or full-stack development
  • Strong proficiency in JavaScript and TypeScript, including DOM manipulation and JavaScript object model
  • Good English communication skills, with the ability to collaborate effectively in a team environment
  • Strong proficiency in React.js or Vue.js and their core principles
  • Self-motivated working style
  • Strong teamwork and collaboration skills

Nice-to-have: 

  • Experience with cloud platforms, such as Google Cloud Platform (GCP)
  • Experience with containerization and orchestration tools (e.g. Docker, Kubernetes)
  • Experience with WebSockets and Server-Sent Events (SSE)
  • Experience with or understanding of React-admin
  • Understanding of system design
  • Experience with Next.js, Node.js, and tRPC
  • Basic understanding or hands-on experience in:
    • Backend programming languages and frameworks
    • SQL databases (e.g. MySQL, PostgreSQL, MongoDB)
  • Awareness of the latest AI trends and practical experience using AI tools in development from a user’s perspective

Working time: 9:00 AM – 6:00 PM (1-hour lunch break) from Monday to Friday

Employment Package:  

  • Salary: Negotiable
  • Laptop Mac pro provided
  • Social, public health and unemployment insurance as defined in the Labor Code 
  • PVI insurance for staff and 1 family member
  • 12 days’ annual leave and 1 birthday leave
  • Salary review: twice per financial year
  • Half-year bonus: up to 100% of monthly gross salary
  • Most valuable person/team awards per half-year
  • Annual company trip, annual health check
  • Club allowance, chance to join club activities with cost bearing up to $20/month

Resume submission:

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