ExperiencedPython Backend Developer (Automation tester or QA)

Job Description

LG CNS Vietnam Build Center's Project "AI Lab" is looking for Python Backend Developer (Automation tester or QA)

  •  Conduct inference load performance tests and support optimization initiatives.
  • Perform web server-based load performance tests using JMeter and LoadRunner.
  • Collaborate with cross-functional teams to identify performance bottlenecks and implement solutions.
  • Utilize and understand LLM serving frameworks such as NVIDIA Triton.
  • Apply inference optimization libraries such as vLLM and TensorRT LLM to enhance performance.
  • Develop, test, and maintain scalable Python code to support various applications.
  • Troubleshoot and resolve issues related to performance and scalability.



  • Bachelor's degree in computer science, Engineering, or a related field.
  • More than 2 years of experience in Python development.
  • Proven experience in conducting load performance tests using JMeter and LoadRunner.
  • Having knowledge of LLM serving frameworks (e.g., NVIDIA Triton) and inference optimization libraries (e.g., vLLM, TensorRT LLM).
  • Strong problem-solving skills and attention to detail.
  • Excellent communication and teamwork abilities.
  • Familiarity with version control systems (e.g., Git).
  • Good verbal and written communication skills in English


  • Attractive salary and bonus will be discussed after going through CV & Interview
  • Review capacity annually and adjust salary increases according to work performance.
  • Korean language certificate bonus (TOPIK)
  • Health care: Premium health insurance, Annual health check-up
  • Young working environment
  • Good career development opportunities with interesting and challenging projects.
  • English, Korean, technical, soft skills training courses.
  • Opportunity to learn special courses from LG CNS, new technology and security.
  • Gifts on holidays (April 30th - May 1st, September 2nd, Tet, etc.)
  • Outdoor activities with company support: sports clubs, team building, happy hour parties, birthdays, travel, employee and family events, etc.
  • Working hours: 8 hours from Monday - Friday (8:00 - 12:00 - 13:00 - 17:00)


  • 15th Floor, Keangnam Landmark 72, Me Tri, Nam Tu Liem, Hanoi

How to apply

  1. Please send your application to the following e-mail. ▶recruit_VN@lgcns.com
    * Postal or in-person application is not allowed
  • Attach CV in English
  • The Agreement to the Collection, Use and Transfer of Personal Data (Reference)

Hiring Process

  1. Book an Interview Schedule with HR manager.
  2. 1st interview with VN Senior Leaders (Online/offline meeting room, use Vietnamese to answer)
  3. 2nd Interview with Kr Senior PM (Online meeting room, use English and Vietnamese to answer) *
  4. If passed, negotiate salary and bonus.
  5. Confirm onboarding Date.


  • All inquiries about the hiring process can be made through ▶ recruit_VN@lgcns.com

Copyright © LG CNS. All Rights Reserved.

Copyright © LG CNS. All Rights Reserved.