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Quantcast

Software Engineer

Quantcast
United Kingdom · Full-time · Entry

At Quantcast, we're redefining what's possible in digital advertising. As a global Demand Side Platform (DSP) powered by AI, we help marketers connect with the right audiences and deliver measurable results across the Open Web. Our foundation is built on cutting-edge measurement and consumer analytics, giving our clients the tools they need to drive success in an ever-evolving digital landscape.

Since our start in 2006, we've pioneered industry firsts—from launching the original measurement platform for digital publishers to introducing the first AI-driven DSP. If you're ready to be part of a dynamic, forward-thinking team that thrives on creating transformative solutions, Quantcast is the perfect place to grow your career.

At Quantcast, we use technology to help brands and publishers understand, reach and influence the constantly-changing behaviors of consumers. The Real-Time Bidding (RTB) Platform owns and operates the large-scale distributed stack which allocates millions of dollars of advertising budget to billions of bid opportunities streaming into the system. If you’re interested in working on these critical, fast, large-scale distributed systems then we’d like to meet.

As a Software Engineer, you care about the health and maintainability of our systems and the velocity of the engineering teams. You write code, design systems, build out proof of concepts that improve systems and automation throughout our products and tech stack.

What You'll Do

  • Code, test, debug and maintain software applications handling millions of real-time requests per second efficiently.
  • Constantly improve development, testing, configuration management, monitoring, and operational tools and processes.
  • Work and collaborate closely with cross-functional teams, including product engineering, modeling, and other platform teams, to ensure delivering high-quality software products.
  • Profiling and optimizing bidding machines.
  • Setting up and running experiments to improve stability, reliability, and bidding performance across the stack.
  • Providing tooling for other software engineers to run their servicesParticipating in oncall duties.

Who You Are

  • 1-2 years experience developing and working on distributed software systems as a Software Engineer.
  • Skills in distributed system and software design, concurrent algorithms, data structures, and software engineering.
  • Hands-on experience with Java, Golang, or a similar language.
  • Degree in a topic related to Computer Science, or equivalent.
  • Bonus: Experience in programmatic advertising.

At Quantcast, we craft offers that reflect your unique skills, expertise, and geographic location. On top of a competitive salary, this position includes eligibility for a performance bonus, equity, and a comprehensive benefits package. Depending on your location, this may include generous vacation, medical, dental, and vision coverage, and retirement plans. For more details, visit our Careers page and see how we support our team. Please see the Applicant Privacy Notice for details on our applicant privacy policy.

Founded in 2006 and headquartered in San Francisco, we are a diverse, aligned community with offices across 10 countries worldwide. Join the team that unlocks potential.

Quantcast is an Equal Opportunity Employer.

Key Skills

Ranked by relevance

dsp ai configuration management data structures design systems golang java san
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Posted
Oct 03, 2025
Type
Full-time
Level
Entry
Location
London
Company
Quantcast

Industries

Technology Information Internet

Categories

Engineering Information Technology

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