Software Engineer, Data Science / Real Time Platform (Java, Kafka, Streaming Data)

Software Engineer, Data Science / Real Time Platform (Java, Kafka, Streaming Data)

At AppNexus, our data is our life line - we can only be as good as our data, and great data is critical for business success. Our data pipeline processes tens of billions of log records a day (more than 150TB of data) generated by our real-time bidding engines and ad serving platform. Data volume has rocketed over the past year and is continuing to increase – we have petabytes of data on store at this very moment. This data is used to generate aggregated analytics reports, pace spend accurately, and drive optimization engines.

About the team:

Our engineering team builds technology that identifies and analyzes relevant data to match buyers and sellers such that they each achieve their business initiatives. To do this, engineers partner with our Data Science team - implementing, testing and deploying probability based heuristics and intuitive, high-performance, real-time solutions for our diverse client base. This is an energizing community of engineers that is committed to building dependable products – the software and systems being built drive our real-time bidding business with a multitude of other core initiatives for AppNexus.

About the job:

  • Design and implement new features and enhancements to our Platform that require hard real-time constraints and elegant, yet powerful software solutions
  • Work closely with other engineers, data scientists and our Product teams, to not only make these systems handle more and more data, but also to build revolutionary new features for our clients
  • Prioritize bug fixes to ensure critical up-time
  • Work collaboratively with other engineering teams to ensure real-time technology integrates seamlessly with other pieces of the platform


About your skills:

  • BA/BS degree OR MS degree in software engineering (Degree in Computer Science or related field preferred)
  • Object oriented programming experience in Java or Python
  • Experience with SQL (MySQL, Oracle, or PostgreSQL)
  • Solid Computer Science fundamentals with regards to data structures, algorithms, time complexity, etc.


Nice to have:

  • Solid understanding of statistics and probability
  • Experience developing and scaling RESTful web services
  • Experience with data processing including Map/Reduce, batch-based processing, stream based processing
  • Experience with column stores or NoSQL data stores


More about you:

  • You are passionate about a culture of learning and teaching. You love challenging yourself to constantly improve, and sharing your knowledge to empower others
  • You like to take risks when looking for novel solutions to complex problems. If faced with roadblocks, you continue to reach higher to make greatness happen
  • You care about solving big, systemic problems. You look beyond the surface to understand root causes so that you can build long-term solutions for the whole ecosystem
  • You believe in not only serving customers, but also empowering them by providing knowledge and tools


AppNexus is proud to offer equal opportunity in all aspects of employment. We strive to foster a diverse, inclusive and engaging work environment. We welcome applications from all candidates and look forward to receiving yours! Our diversity in action:


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