[Japan AI] Senior Full Stack Engineer (Next.js, Node.js)

by | May 17, 2025

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: Full-stack Engineer 

Location: HANOI

Job category: Technical – Digital Marketing/ Information Technology 

Industry: Advertising    .

Job description: 

  • Design, develop, and maintain AI-powered applications and systems from end-to-end, including the front-end user interface, back-end services, and integration with AI models/large language models (LLMs)
  • Work collaboratively with backend/frontend/AI engineers and PdMs to design and develop a robust and flexible frontend/backend for a powerful AI chat service and user data integration systems.
  • Construct reporting system in Google GCP 
  • Build new features, bug fixes, and suggest projects that will improve product and infrastructure.
  • Write sustainable, high-quality, high-performance code
  • Suggest and implement projects that enhance product performance and user experience.
  • Collaborate with cross-functional teams to define, design, and ship new features.
  • Ensure the performance, quality, and responsiveness of applications.
  • Continuously discover, evaluate, and implement new technologies to maximize development efficiency.

Job requirements: 

Must have: 

  • Bachelor’s degree or higher in Information Technology
  • A minimum of 3 years of full stack experience
  • Confident in JavaScript, TypeScript, including DOM manipulation, JavaScript object model
  • Have experience with Next.js
  • Confident in backend programming languages and frameworks (Node.js, tRPC preferred)
  • Expertise in SQL databases (MySQL, PostgreSQL, MongoDB…)
  • Proficiency in English, with the ability to communicate effectively in a team setting
  • Stay on track with latest AI trends, using AI tools in development from a user’s perspective. 
  • Self-motivated development style
  • Strong teamwork capabilities

Nice-to-have: 

  • Experience with cloud computing platforms, such as Google Cloud Platform (GCP).
  • Experience with containerization and orchestration technologies (e.g., Docker, Kubernetes)
  • Experience in backend development using Python
  • Familiarity with popular Python’s libraries
  • Understanding of React.js and its core principles.
  • Experience with React-admin
  • Experience with System Design 

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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