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AdTech, MarTech, Big Data, AI, Analytics, Software

Software Engineer (Big Data)

San Francisco, California, United StatesHybridFull Time$138,500–$162,000 /yrPosted 2 months agoVisa sponsorship available

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Role summary

Quantcast is seeking a Software Engineer for its Big Data Services team. This role involves building, maintaining, and optimizing large-scale data processing systems and distributed storage/compute platforms. The engineer will collaborate with data scientists and researchers to ensure a scalable and efficient data infrastructure for advanced analytics and modeling. Experience with distributed systems like HDFS and Spark is preferred. The role offers exposure to real-world data science, modeling workflows, and best practices in scalable data infrastructure.

At Quantcast, we don't just build advertising technology, we revolutionize how it works. Our AI-powered Demand Side Platform (DSP) connects the world's most ambitious marketers with their ideal audiences across the open internet, delivering results that actually move the needle. Since 2006, we've been the industry's trailblazer, launching the first AI-powered measurement platform for publishers and the first AI-driven DSP. Our AI doesn't just optimize—it delivers the measurable outcomes that matter most to our clients, giving them the competitive edge they need in a crowded marketplace. Ready to join the team that's defining the future of digital advertising?

We are seeking a Software Engineer to join our Big Data Services team. This role focuses on building, maintaining, and optimizing large-scale data processing systems while supporting the needs of our data science and engineering teams.
You will work closely with engineers, data scientists, and researchers to ensure a reliable, scalable, and efficient data infrastructure that powers advanced analytics and modeling workflows.
 
The primary focus of the team is driving and developing systems and services that enable Quantcast to scale its distributed storage and compute platform. The ideal candidate has a passion for large-scale distributed systems (e.g., HDFS and Spark). 

What you'll do:

  • Contribute to the development and optimization of large-scale data workflows using technologies such as Apache Spark or similar frameworks

  • Develop and operate our large scale data processing systems, making them more elastic and fault tolerant, solving distributed data and compute challenges

  • Assist in deploying and maintaining production systems, including CI/CD workflows

  • Provide technical input into roadmaps for the team

  • Write clean, maintainable, and well-tested code

    • Who you are:

  • Recent graduate (0-1 years) with a Bachelor's Degree in computer science or equivalent experience

  • You must be work-authorized in the United States without the need for current or future employer sponsorship. We are not currently able to engage candidates on OPT. 

  • Familiarity with data processing frameworks such as Apache Spark, Hadoop, or similar.

  • Familiarity with containerization tools (e.g., Docker and Kubernetes)

  • Experience with workflow orchestration tools (e.g., Airflow) is a plus

  • Proficient in Java and/or Python programming languages

  • Linux system administration/automation is a plus

  • Strong problem-solving and debugging skills

  • Organized and detail-oriented

    • What you'll learn in this role:

    • Hands-on experience with large-scale distributed systems in production

    • Exposure to real-world data science and modeling workflows

    • Best practices in building scalable and reliable data infrastructure

    • Collaboration across engineering and modeling teams

    The salary range for this position is $138,500 - $162,000 USD
     
    #LI-AC1

    At Quantcast, we craft offers that reflect your unique skills, expertise, and geographic location. On top of a competitive salary, this position includes a performance bonus, equity, and a comprehensive benefits package. For more details, visit our Careers Page and see how we support our team. We are headquartered in San Francisco with offices around the world. Quantcast is an Equal Opportunity Employer. Please see the Applicant Privacy Notice for details on our applicant privacy policy. Join the team that unlocks potential.

     



    Sample Quantcast interview questions

    • 1

      Design a system for real-time audio/video streaming.

      system designmedium
    • 2

      Create a real-time intrusion detection system based on network traffic analysis.

      system designmedium
    • 3

      Build a real-time satellite imagery processing system.

      system designmedium
    • 4

      Clone an Undirected Graph Clone an undirected graph. Input: adjList = [[]] Output: [[]] Explanation: Creates a new, deeply cloned graph containing only one single node with zero connected neighbors.

      codingmedium
    • 5

      Serialize and Deserialize N-ary Tree Serialize and deserialize an N-ary tree. Input: root = [1] Output: 1 Explanation: The tree only contains a root node, resulting in a minimal serialized string representation that can be accurately rebuilt.

      codingmedium

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