Machine Learning Software Engineer

Radius is a fast-growing, venture-backed startup in the heart of San Francisco. Radius applies advanced data science to deliver the freshest, most accurate, and most comprehensive view on 20M+ US companies―from small businesses to the largest enterprises. We build cutting-edge machine learning solutions that help our customers discover markets, acquire customers, and measure performance through an app that’s intuitive, secure, and enterprise-ready.

Radius is looking for a Machine Learning Engineer who is interested in using data science and engineering to enhance the graph of all U.S. businesses that is used by Radius applications. You will work on the Decisions team at Radius which is responsible for building the Radius Business Graph (which models about 18+ million U.S. businesses and is built from dozens of sources and billions of records) and serves as the foundation of our Radius SaaS predictive marketing platform.


  • Working alongside top-notch data engineers and scientists to improve our graph
  • Designing, implementing distributed large-scale Machine Learning models running in the Radius Graph data pipeline using Spark, Scala, GraphX and MLLib
  • Maintaining and improving some of our data pipeline, Machine Learning infrastructure  and existing Machine Learning models using Spark, Scala, GraphX and MLLib
  • Assessing the impact of using new data sources on data quality and comprehensiveness of our graph
  • Partnering with other Radius engineering teams sourcing the data or doing data quality analysis


  • Strong desire to work at a rapidly growing startup and make it a success
  • Thorough knowledge of machine learning, statistics, graph algorithms, linear algebra, and numerical optimization
  • 5+ years full lifecycle software engineering experience including: coding, testing, troubleshooting and deployment using general-purpose languages such as: Scala, Java, Python, and C++
  • 2+ years experience with building production end-to-end machine learning models at scale using distributed platforms such as Hadoop or Spark
  • Comfortable working in a remote Linux environment and Cloud (EC2)
  • Advanced degree in computer science, statistics, mathematics, or similar fields

Additional Preferred Qualifications:

  • Scala development experience
  • Publications in top machine learning conferences or journals

Radius is an Equal Opportunity Employer.

Meet Some of Radius's Employees

Wes H.

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Wes travels frequently to meet with prospects and customers. He creates positive business relationships and demonstrates how Radius’ data-driven predictive capabilities can help drive demand and revenue for marketers.

Katie G.

Senior Director of Product Marketing

Katie channels the voice of the customer back into product development in order to make sure that Radius’ products solve customers’ real-world problems.

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