Software Engineer

quantcast· Engineering & Modeling
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📍 LondonFullTime

About this role

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?

Our engineering organization in London builds and operates many of the critical components underpinning the Quantcast product, including: real-time distributed systems, audience modeling, delivery control systems, large-scale data infrastructure, integrations with partners in the adtech eco system, payments and revenue processing, artificial intelligence infrastructure, and more. We’re actively looking for Software Engineers to join us on our mission.

What you'll do:

  • Write code, design systems, build out proof of concepts that improve systems and automation throughout our tech stack.

  • Take part in the entire software engineering life cycle, from conception through designing, implementing and operating systems and services. 

  • Care about the health and maintainability of our systems, help us learn and drive continuous improvement in reliability, testing and operational monitoring, including participating in on-call duties.

  • Collaborate closely with cross-functional teams, including product engineering, modeling, and other platform teams, to ensure delivering high-quality software products. 

You might be a great fit for this role if you:

  • Enjoy working closely with other talented engineers, in a culture that values collaboration and winning together as a team.

  • Have an appetite for growing your skills and your positive impact.

  • Are excited and curious about technology and its potential.

Who you are:

  • 0-2 years prior experience in professional software engineering (new grads welcome!)

  • A degree in Computer Science or an adjacent field.

  • Excellent skills in computer science fundamentals such as algorithms, data structures, systems design, common languages (Java or Python or similar).

  • Excellent written and verbal communication skills in English

#LI-SK1


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.

Frequently Asked Questions

Is the salary disclosed for the Software Engineer position at quantcast?
The salary for this Software Engineer role at quantcast is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Where is the Software Engineer position at quantcast located?
This Software Engineer role at quantcast is based in London. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Is the Software Engineer role at quantcast full-time or part-time?
This is listed as a FullTime position. It is posted as a Software Engineer role in the Engineering & Modeling department at quantcast.
Which team or department does the Software Engineer at quantcast belong to?
This Software Engineer position is part of the Engineering & Modeling department at quantcast. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Software Engineer position at quantcast?
Click the "Apply Now" button on this page. You will be redirected to quantcast's official application portal hosted on ashby where you can submit your application directly.
When was the Software Engineer job at quantcast posted?
This Software Engineer position at quantcast was posted on Jun 26, 2026. Apply as soon as possible — early applications are often reviewed first.
Software Engineer
quantcast
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You'll be redirected to quantcast's official application page on Ashby ATS.