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Principal Algorithm Engineer

This role can be full time remote in the U.S. or located locally in Denver

The Role:

Work on the Identity Resolution team as Principal Algorithm Engineer to design and construct performant algorithms, infrastructure and data pipelines to manage our graph database for our identity resolution offering. Our identity graph is constructed from billions of observations leveraging the latest in big data technologies.

The Identity Resolution team is primarily focused on providing identity resolution capabilities to our internal customers enabling identity resolution across the board for our external customers. This involves integrating data sets, developing our patented identity resolution graph algorithms and scaling all this to a very large amount of data. The team works on both live streaming and batch systems and leverages machine learning so that we can be the best in class for enterprise identity resolution.


  • Serve as Principal Algorithm Engineer on our Identity Resolution Team
  • Can be relied upon to be the ‘technical face’ for FullContact through customer interactions, blog posts, conference presentations, meetups, etc
  • Research, Design, Implement, Test, and Maintain new identity resolution and matching algorithms
  • Ensure our identity resolution capabilities are always best-in-class
  • Always be learning and teaching
  • Design, build, test and deploy massively parallel graph algorithms
  • Process large amounts of data leveraging big data technologies such as Spark, Kafka and more.
  • Expose data and tools to internal teams through APIs and libraries
  • Account for quality and security as you build
  • Participate in on-call rotations to support key systems to ensure High Availability


  • 5+ years of experience in Data Engineering or Software Engineering
  • A solid foundation and understanding of APIs and how they should operate
  • You are an experienced software engineer with a solid mathematical foundation and experience building and launching highly-scalable algorithms.
  • Very knowledgeable in normalizing and aggregating dirty data
  • Previous experience in technical leadership (not necessarily management); you are highly collaborative and love to jump on a whiteboard to work through new ideas with the team.
  • You balance creativity and a trail-blazing mentality with practicality and a get-stuff-done attitude. Distilling complex problems into straightforward and extensible solutions thrills you.
  • Experience with one or more distributed computing frameworks, such as Spark.
  • Experience with a variety of databases  (SQL, NoSQL, In-Memory, Searchable, etc)
  • Experience in Scala, Spark, Java, Dropwizard
  • Solid Linux experience - CLI tools, scripting
  • Bonus Points for Machine Learning and Graph Theory experience
  • Bonus Points for Identity Resolution experience
  • Bonus Points for Deep understanding and experience developing in the JVM
  • Very knowledgeable in AWS and deploying software in the cloud using CI/CD tools such as Spinnaker / Jenkins
  • Git and AWS familiarity
  • Authorized to work in the United States on a full-time basis

Compensation and Benefits: 

  • Salary Range: $160,000 to $200,000 base salary plus company based bonus plan and equity 
  • Benefits: 100% paid dental, medical, and vision for employees and family coverage; unlimited PTO, 11 company holidays; 401K (match); paid parental leave; EAP 

About FullContact:

FullContact is the premier provider of SaaS-based identity resolution that empowers brands to improve their customer experience and authentically engage with consumers. Using a consumer-first approach with our product offerings, we aim to make relationships better and that starts with our employees. We offer excellent benefits for our teammates, including full medical and dental coverage, unlimited vacation time and a generous stock option plan.  You’ll join an innovative, enthusiastic team whose hard work helped us achieve recognition from the API awards, MarTech Breakthrough awards, and inclusion on the Inc. 5000 list for fastest growing companies.

All offers of employment at FullContact are contingent upon clear results of a thorough background check. FullContact is an Equal Opportunity Employer. FullContact does not discriminate on the basis of race, religion, color, sex, gender identity, sexual orientation, age, non-disqualifying physical or mental disability, national origin, veteran status or any other basis covered by appropriate law.

By clicking on the “submit application” button and applying for a job at FullContact, you are agreeing to submit your data to FullContact for the purposes of determining qualification for the role. In addition, FullContact will keep the personal data you submit now for future recruiting and hiring processes.

Applicants must be currently authorized to work in the United States for any employer.

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