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Sr. Software Engineer I-II, Frontend

Xaxis / New York / Engineering & Modelling
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Job Overview

We're a fun team that values teamwork over ego and cooperation over competition. We are open and honest; we have strong opinions, loosely held; we embrace kaizen: daily improvement; we support one another; we aim high; we have fun – these are some of our values that make us great.

You'd be joining a team of smart engineers and data scientists that knows how to get things done solving challenging and interesting problems in the ad tech space.


You should:

  • Be fluent in JavaScript ES6 (we mostly use TypeScript, but you can learn on the job)
  • Be proficient in at least one front-end framework (we use React, but any is fine)
  • Be knowledgeable in Python
  • Have a strong understanding of core CS concepts
  • Be comfortable designing and implementing challenging features
  • Have a solid appreciation for good UI/UX design
  • Be collaborative/solve problems cooperatively have familiarity with RESTful APIs
  • Be a great communicator with the ability to write clear docs and concisely explain complex ideas/algorithms
  • Be comfortable working in an agile environment
  • Knowledge of great ways to visualize data is a plus.


  • Python 3.7+
  • TypeScript/ES6
  • Node React/Redux
  • Airflow
  • Sails (Node.js)
  • Docker AWS

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Xaxis Overview

Xaxis transforms digital media into business outcomes. We maximize the ROI of our clients’ digital media investments by combining purpose-built AI, advanced cross-channel solutions, and dedicated programmatic expertise to develop and optimize to success metrics that connect directly to their business goals. Founded in 2011, Xaxis is GroupM’s advanced programmatic media arm, delivering outcomes for more than 3,000 brands in 48 markets around the world.

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