Senior/ Lead Software Engineer — Real-Time Ad Serving (LiveIntent)
Zeta Global5 months ago
London, United KingdomSenior
Responsibilities
- Develop and optimize Lua business logic for ad selection, targeting, frequency capping, and budget pacing.
- Design, build, and maintain real-time services processing more than 200,000 requests per second under strict latency requirements.
- Collaborate with Product to deliver advertiser- and publisher-focused features.
- Ensure code quality through code reviews, automated testing, and continuous integration.
- Participate in architecture discussions and influence the technical roadmap.
- Participate in an on-call rotation supporting production systems.
Requirements
- At least 5 years of backend software engineering experience.
- Strong understanding of data structures, algorithms, and performance optimization.
- Experience building and operating distributed systems in production.
- Experience across the software development lifecycle, from design through production and monitoring.
- Strong commitment to code quality, automated testing, and documentation.
- Proficient English, as the interview process is conducted in English.
- Experience with Lua or willingness to learn Lua.
- Experience with online advertising or ad tech, such as RTB, programmatic advertising, DSPs, or SSPs, is preferred.
- Proficiency in a systems-level language such as C++, Go, Rust, or Java is preferred.
- Experience with MongoDB and real-time data processing is preferred.
- Experience with AWS cloud infrastructure at scale is preferred.
- Experience with AI-assisted development tools and agentic workflows is preferred.
- Experience with the OpenRTB protocol and ad exchange integrations is preferred.
Benefits
- Excellent medical, dental, and vision coverage
- Hybrid/remote work based out of the Berlin, Germany or Prague, Czech Republic offices
About Zeta Global
Zeta Global builds an AI-powered marketing cloud that unifies customer data, analytics, and omnichannel activation for enterprise brands and agencies. Its Zeta Marketing Platform combines martech and adtech—spanning CRM, email, display, and social—to acquire, grow, and retain customers on a subscription and media-buying model. Founded in 2007 and headquartered in New York City, Zeta is a public company trading on the NYSE under the ticker ZETA.