Senior Frontend Engineer (Javascript) ​


Your daily tasks:
Design and implement a Captcha SDK
Technical support of Captcha SDK


3+ years of experience as a JavaScript engineer, delivering on time, at quality
Strong knowledge of JavaScript and web technologies (HTML/CSS)
Experience and knowledge of cross-browser and cross-device development
Love sharing, open source, experience in maintaining open source project is preferred
Familiar with Webpack, ESBuild, and Module Bundler
Familiar with common network protocols such as TCP/HTTP, and experience in server operations is preferred
Experience with A/B test
Familiar with Front-end performance optimization, Chrome/Safari, etc, and Front-end debugging tools
Experience with CI/CD, unit test framework
Demonstrable ability to work across multiple teams to deliver an end product
It's a big plus:
A big plus would be experience with development of SDK, Captcha, or the enthusiasm to learn it!
A strong plus experience with integrate obfuscation and code protection technologies into the
client applications.
Understand of DOM/BOM APIs
Experience integrating internal and third-party services into your solutions
Strong knowledge of building quality RESTful APIs for internal and external products


From solid welfare programs to autonomy over working time and place, we create the culture in which we work, you will be involved in:
A work-life balance: A-class brand new offices located in the city center with flexible working
option; Annual leave 14 days, add 1 day to every year.
Competitive income package: Performance appraisal every year, incentive bonus...
Learning and development opportunities: We provide annual budget for employee to learn anything related to languages and technologies & monthly budget for buying any books you want to read.
Protecting and enhancing healthcare plan for you and your family: We provide premium heath insurance for you and 2 family members, health-check every year and premium gym membership.
Employee 's engagement activities: You will be involved in a fun and respectful working environment, we support monthly budget for team 's engagement.
Other benefits: One-off allowance for setting up working from home corner, work dedication bonus


PEGASI – IT Recruitment Consultancy | Email: | Tel: +84 28 3622 8666
We are PEGASI – IT Recruitment Consultancy in Vietnam. If you are looking for new opportunity for your career path, kindly visit our website for your reference. Thank you!

Job Summary

Company Type:


Technical Skills:

Frontend, Javascript


Ho Chi Minh - Viet Nam



Job ID: