Software Engineer, Partner Integrations

Quantcast; Greater London; Hybrid; GBP 80,000 - 100,000; Full time

Job summary

A leading digital ad technology firm in Greater London is seeking a Software Engineer to design and implement integrations within high-performance systems. This role requires proficiency in Java and familiarity with Python, along with strong problem-solving skills. Ideal candidates should have 1-2 years of experience in software engineering and a collaborative mindset. The position offers a hybrid work setup with attractive compensation and benefits, reflecting individual skills and expertise.

Benefits

Performance bonus

Equity options

Comprehensive benefits package

Qualifications

• 1-2 years of industry experience in software engineering.
• Deep understanding of the Java ecosystem.
• Interest in ad tech and performance optimization.

Responsibilities

• Design and scale integrations between systems and third-party platforms.
• Maintain high-quality, well-documented codebases.
• Collaborate effectively with cross-functional teams.

Skills

Java

Python

Problem-solving skills

Version control

Education

Bachelor’s degree in Computer Science or equivalent

Job description

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.

The Partner Integrations Team at Quantcast plays a pivotal role in delivering seamless ad tech solutions by integrating our systems with key third‑party partners. These integrations power essential capabilities such as audience selection, targeting, measurement, and reporting—helping our customers achieve their advertising objectives with precision and efficiency.

We are seeking a Software Engineer who thrives in a fast‑paced, problem‑solving environment and can work with a high degree of autonomy. In this role, you will design, build, and maintain technical integrations that operate at scale in high‑volume, low‑latency environments. You will apply critical thinking to complex challenges, proactively identify improvements, and contribute to the continued evolution of our platform.

What you’ll do:

• Design, build, and scale integrations between our high‑performance distributed systems and third‑party platforms.
• Contribute to new feature development, architectural improvements, and integration tooling enhancements.
• Maintain clean, high‑quality, and well‑documented codebases with a focus on readability, maintainability, and performance.
• Bring creative and analytical thinking to solve complex technical problems and propose innovative solutions.
• Diagnose and resolve technical issues in large‑scale, mission‑critical environments.
• Participate in on‑call rotations, taking ownership of urgent operational issues when they arise.
• Collaborate effectively with cross‑functional teams while also demonstrating the ability to work independently and self‑directedly.

Who you are:

• Bachelor’s degree in Computer Science or equivalent professional experience.
• Minimum 1 - 2 years of industry experience in software engineering.
• Proficient in Java with a deep understanding of the Java ecosystem.
• Working knowledge of the Python ecosystem.
• Strong fundamentals in software development practices—including version control, code review, testing, release processes, monitoring, and debugging.
• Passion for tackling technical challenges in high‑scale, low‑latency distributed systems.
• Strong problem‑solving skills with the ability to break down complex problems into actionable steps.
• Self‑motivated, with the initiative to learn and adapt quickly in a rapidly evolving environment.
• Interest in ad tech, systems integration, and performance optimization.
• Collaborative, team‑oriented mindset with a willingness to take ownership and drive projects to completion.

Quantcast operates in a hybrid work environment. The in‑office days are Tuesday, Wednesday, and Thursday.

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 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.