Senior Software Engineer (Full-stack), Product Engineering - Publisher Targeting

Quantcast, San Francisco

Quantcast helps create a more personalized digital world.

Quantcast is hiring Full Stack Senior Software Engineers to join the Product Engineering team in our San Francisco office.

As the real-time pulse of the Internet, Quantcast uses machine learning to drive human learning. We’ve built one of the largest computing infrastructures on the planet, collecting a constant stream of data from over 100 billion events a day, across 100+ million directly-measured destinations. In addition to this global network, Quantcast has engineered premier map-reduce and real-time processing clusters at a massive scale, processing an average of 30+ PB of data every single day for various machine learning and data mining applications.

The Product Engineering team is responsible for developing products to deliver valuable audience insights to publishers and marketers alike. Having built successful Publisher products, now we like to empower Agencies and Marketers to achieve their campaign goals. We therefore expand the team to take on this challenge about building state of the art direct to consumer products that bring Publishers and Marketers together.

As a Senior Full Stack Engineer, you will help build and improve the applications and distributed systems that allow the customer to create and configure campaigns and to learn from the highly valuable insights about the Audience. You will thrive in an environment where independent decision-making is the norm. Individuals in this role will be excited to keep up with the fast evolving open source based big data technologies and applying it to our stack when applicable. You should be comfortable implementing REST APIs that expose the underlying data for consumption by UI and/or clients. Individuals in this role will want to work on our many open-ended problems and will have an opinion when it comes to selecting the right tool/technology for the job (and the ability to explain why!)

At Quantcast, these full-stack polyglots work in all aspects of agile application development, from DB schema design, Data pipelines, Java business logic to advanced Javascript frameworks like ReactJS on the front-end. As a Full Stack Software Engineer at Quantcast, you will have a major impact on how the world perceives and interacts with our products. We hope that you’ll bring your passion for application development to help us build truly world-class technology and products!


  • You will work with your team to figure out product direction and customer needs.
  • You will develop and improve big data systems that drive our Audience Insights.
  • You will share knowledge and standard methodologies amongst the product engineering team and the wider engineering organization.
  • You will work with data modeling scientists to use and apply their models.
  • You will participate in a team-wide on-call rotation to keep the systems ticking along.
  • You will create our customer facing UI/UX to provide tools to help with campaign management and advanced analytics directly to the end customer
  • You will develop tool sets that support a number of core business operations at Quantcast
  • You will build data pipeline and server infrastructure to drive Quantcast targeting products for publishers


  • Bachelor's or Master’s degree in Computer Science or a related field and 5+ years of software development experience.
  • Expertise in programming with Java. Proficiency in another language like Python, Scala, Go etc.
  • Experience with developing consumer facing web applications using ReactJS
  • Strong understanding of various web technologies and frameworks
  • Have a solid foundation of data structures and algorithms and ability to apply them to real-world problems.
  • Working knowledge of databases like PostgreSQL, MySQL, ElasticSearch etc and passion for new technologies and driven to build the best products.
  • Working with distributed big data systems using Hadoop MapReduce is a nice to have
  • Object-oriented application development experience
  • Passion for new technologies and driven to build the best products

Bonus points

  • Exposure to AWS technologies
  • Experience with Spark & Druid
Quantcast owns and operates the world’s largest audience insights and measurement platform on the open internet. Fueled by live data drawn from more than 100 million web and mobile destinations, Quantcast applies machine learning technology to help marketers, publishers, and agencies grow their brands by better understanding and predicting consumer interactions in real-time. 

Founded in 2006, Quantcast is headquartered in San Francisco and has employees in over 20 offices across 10 countries. We are committed to building an inclusive and diverse environment where everyone can be their authentic self.

About Quantcast

ABOUT US Our intelligence platforms combine big data and machine learning to solve crucial marketing challenges. We help publishers understand audiences and create compelling digital experiences. Our predictive advertising capabilities give marketers insight into online behaviors so they can reach valuable, relevant customers. And we help consumers receive personalized stories and messages across devices.

Want to learn more about Quantcast? Visit Quantcast's website.