Criterion Asia Recruitment (Thailand) Co. Ltd.

Back End Developer (VoIP & Python)

Criterion Asia Recruitment (Thailand) Co. Ltd.
THB 35,000 - THB 90,000 /เดือน (รวมค่าคอมมิชชั่น)
ลงประกาศเมื่อ 21 Jan 2021

Back End Developer (VoIP & Python)

Criterion Asia Recruitment (Thailand) Co. Ltd.


  • Excellent Career Development Opportunities
  • Great Career Advancement
  • Competitive Remuneration Packages


Back End Developer (VoIP & Python) - MRT บางยี่ขัน


  • Develop new functionality related to Cloud IPPBX, UC communication platform with VOIP Technology over Cloud Structure
  • Real-time ultra-performant delivery of calls to mobile endpoints
  • Telephony integration - SIP messaging with our PBX system
  • Integration with Company Communications Platform
  • Research , Verify and Validate both technology and framework of VOIP to ensure that it would proper with the company goal each stage.
  • Lead/mentor developers and share knowledge through the specific knowledge-sharing platform.
  • Participate in a small, experienced, energetic team on a rapid, agile development schedule
  • Maintaining and supporting multiple projects and deadlines
  • troubleshooting protocols around SIP, SS7, RTP, TCP/IP, NAT, scripting, etc.
  • Analytic in reporting, metric analytics, call routing, call recording.
  • Consult teams with writing call flow scripting including optimizing call flows.
  • Writing the API or SDK and coordinating with the team to complete API/SDK related projects.

Job Qualifications

  • At least Bachelor's degree in computer science / telecommunication engineer or equivalent.
  • Min 1 Year of experience in Back end developer
  • Fresh graduates are welcome to apply
  • Working experience in C, C++, Python and Web Programming.
  • Experience in MySQL, PostgreSQL, MongoDB, Kafka and Elastic Search.
  • Experience in Web Programming and Python is required.
  • Expertise in Linux.
  • Working Knowledge of Encryption (OpenSSL) is an advantage.
  • VoIP knowledge and experience would be advantaged.
  • Exposure to AWS and GCP (or other Public Cloud)
  • Proven technical experience
  • Experienced working in an agile environment and within a small team
  • Ability to work independently or as a member of a team
  • Ability to delegate work effectively
  • Ability to meet all deadlines
  • Ability to write consistent, testable, and maintainable code of high quality
  • Ability of self-learning is strongly required.
  • Deliver beautiful and well tested code
  • The ability to multitask and adapt to changing priorities
  • A strong work ethic, expressed through the willingness and ability to acquire new skills, multitask, and take on projects outside immediate areas of expertise


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Criterion Asia Recruitment is based in Bangkok and specializes in recruitment and executive search services in Thailand and its neighboring countries. We were founded in 2013 and have rapidly risen to become one of the leading human resources services firms in Thailand. We focus our recruitment activities along six functional horizontals which include:

* Information Technology & Digital Innovation
* Finance & Accounting
* Sales & Marketing
* Human Resources
* Industrial & Engineering
* Supply Chain & Logistics