Senior Software Engineer - Node.js

Location: Chennai, India

 C1X Inc. is a fast-growing, global technology company headquartered in San Jose, US, and with offices in Chennai and Bangalore. Our mission is to simplify and innovate digital marketing by building unique and large scale data products. We are a world-class engineering team that encompasses front end (UI), back end (API / Java), mobile (Android/IOS), and Big Data engineering to deliver compelling products.

As a Senior Node.js engineer, you will be responsible for the development of our AMT (Advertising & Marketing Technology) servers, integrations with various exchanges, performance tuning, adding new features as per business requirements, and mentoring junior engineers.


  • Participate in the design & development of high-performance servers.
  • Deliver highly scalable and reliable JavaScript code.
  • Develop code to integrate with several big data systems, analytics, and various 3rd party services.
  • Work with the product team to understand business requirements, and scope the development efforts.
  • Tune the performance of servers.
  • Perform code and design reviews with the team to ensure high-quality deliverables.


  • BE in Computer Science and Engineering. In lieu of this, a strong showing in HackerRank / CodeSignal, etc. can be considered.
  • Solid foundation in Computer Science, with strong competencies in data structures, algorithms, and software design.
  • Highly fluent in programming, especially in JavaScript including ES6.  
  • Excellent understanding of HTTP & other web & networking technologies.
  • Good understanding of SQL and no-SQL databases. Experience with ElasticSearch, MongoDB, etc. is a plus.
  • 2+ years of experience in building and maintaining high-performance server systems using Node.js & Express frameworks.
  • Experience with Display, Mobile, and Video advertising is a plus.


  • Competitive salary
  • Paid time off
  • Medical/Dental insurance