Full-Time

Software Engineer

Multiple Teams

Posted on 10/3/2025

Quantcast

Quantcast

501-1,000 employees

Delivers audience insights and privacy-compliant ads

No salary listed

London, UK

Hybrid

Category
Software Engineering (2)
,
Required Skills
Data Structures & Algorithms
Java
Go
Requirements
  • 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.
Responsibilities
  • 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 services.
  • Participating in oncall duties.
Desired Qualifications
  • Experience in programmatic advertising.

Quantcast offers tools for digital advertising and privacy compliance used by marketers and publishers. Its products include Quantcast Measure, which provides detailed audience insights to understand who is engaging with content, and Quantcast Choice, which helps businesses comply with privacy rules such as GDPR and TCF v2.0. The services work by giving advertisers access to targeting and measurement data and by giving publishers audience analytics to attract advertisers, while also providing a consent and privacy management layer. The company differentiates itself by offering an integrated suite that serves both sides of the market—marketers and publishers—and by combining audience insights with privacy compliance tools in one platform. Its goal is to help clients understand their audiences, optimize advertising campaigns, and navigate privacy regulations.

Company Size

501-1,000

Company Stage

Series C

Total Funding

$65.3M

Headquarters

San Francisco, California

Founded

2006

Simplify Jobs

Simplify's Take

What believers are saying

  • Rebecca Rosborough's March 2026 CMO appointment drives AI adtech brand growth.
  • Dentsu-Merkury integration validates privacy-safe predictive audiences in 2026.
  • APAC expansion with Jordan Khoo VP and Sally Ng MD boosts regional penetration.

What critics are saying

  • Google's 2026 cookie phase-out erodes Quantcast's cross-site measurement accuracy.
  • Trade Desk's Kokai UID2 captures share from Quantcast's self-serve platform in 12 months.
  • Adobe's Privacy Sandbox acquisition bundles superior CDP measurement by late 2026.

What makes Quantcast unique

  • Quantcast Measure uses machine learning for audience insights across 100M destinations since 2006.
  • Audience Graph AI enables cookieless targeting and predictive audiences for advertisers.
  • Quantcast Choice ensures GDPR and TCF v2.0 privacy compliance for publishers.

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Benefits

Paid time off

Paid volunteer time off

Post-pregnancy ramp back program

Paid bereavement leave

Total rewards compensation which includes equity grants

Employee referral bonus program

Catered lunch and fully stocked kitchens (when back working in offices!)

Mobile phone allowance

Flexible work schedules

Wellness and mental health resources

Retirement plans

Learning and development opportunities and resources

Management development programs

Comprehensive health benefits

Growth & Insights and Company News

Headcount

6 month growth

0%

1 year growth

-5%

2 year growth

-7%
Marketing World Awards
Mar 4th, 2026
Quantcast appoints Rebecca Rosborough as chief marketing officer

Quantcast appoints Rebecca Rosborough as chief marketing officer. 3rd March 2026 - Quantcast, the leading AI-powered adtech platform, has appointed Rebecca Rosborough as chief marketing officer In her new role, Rebecca will oversee Quantcast's global brand and communications, while supporting the company's strategic priorities and next stage of growth. Rebecca brings over 20 years of experience driving marketing strategy, building brands, and leading high-performing teams across the US and international markets. She spent five years as CMO at Teads followed by another five years as CMO and executive board member at MiQ, developing deep expertise in programmatic advertising and global marketing strategy. More recently, she has led marketing at SaaS brands including Orange Logic and Frontify. Rebecca's appointment comes at a pivotal moment for Quantcast, as the company continues to expand and evolve its AI-driven adtech platform. With 91% of US advertising agencies using or exploring generative AI and around 85% in Europe, Quantcast's AI-powered capabilities are at the forefront of this shift. Having launched the world's first machine learning audience measurement tool in 2006, Rebecca will play a pivotal role in not just retaining but growing Quantcast's market share in the programmatic space. Konrad Feldman, CEO of Quantcast, commented: "Rebecca brings a wealth of experience across global markets and a deep understanding of the adtech ecosystem. Her knowledge base sits perfectly at the intersection between programmatic adtech and the inner workings of SaaS delivery, which is exactly where the Quantcast brand sits. It quickly became apparent that she's perfectly positioned to help drive Quantcast's next phase of growth over the coming year and I'm confident we'll reap the rewards now she's part of the team." Rebecca Rosborough, CMO of Quantcast, said: "Advertisers don't need more tools - they need measurable outcomes. Quantcast's differentiated, AI-driven platform has delivered on that promise from day one. It brings intelligence and scale together to drive real performance, and I'm excited to help shape what comes next. "Beyond the technology, the people and culture stood out immediately. The team is deeply smart, collaborative, and I'm looking forward to rolling up my sleeves and building alongside them."

Adobe
May 19th, 2025
Quantcast amps up APAC game with Jordan Khoo as new Vice President

SINGAPORE - Quantcast is turning up the volume on its Asia-Pacific ambitions with the appointment of seasoned industry leader Jordan Khoo as Vice President, APAC.

Marketing-Interactive
Oct 10th, 2024
Adtech firm Quantcast names new managing director for North Asia

American advertising technology company Quantcast has appointed Sally Ng (pictured) as managing director for North Asia, as part of its expansion in the APAC region.

Campaign Asia-Pacific
Aug 10th, 2024
Dentsu and Quantcast team up to boost predictive audiences for advertisers

The deal will see Dentsu integrate its global data and insights platform, Merkury, with Quantcast's next-gen programmatic ad platform to provide predictive audiences to its advertisers in a privacy-safe way.

MARKETECH APAC
Jun 3rd, 2024
Quantcast launches AI-driven, cookieless self-serve platform for advertiser accessibility

Quantcast launches ai-driven, cookieless self-serve platform for advertiser accessibility.

INACTIVE