Senior/Lead Software Engineer — Real-Time Ad Serving (LiveIntent)
Zeta GlobalResponsibilities
- 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 features addressing advertiser and publisher needs.
- Maintain 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 computer science fundamentals, including data structures, algorithms, and performance optimization.
- Experience building and operating distributed systems in production.
- Exposure to the full software development lifecycle from design through production and monitoring.
- Strong commitment to code quality, automated testing, and documentation.
- Proficient English is required because the interview process is conducted in English.
- Experience with Lua or willingness to learn Lua is required.
- Experience with online advertising or ad tech, such as RTB, programmatic advertising, DSP, or SSP, 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 role based out of the Berlin, Germany or Prague, Czech Republic offices
About Zeta Global
At Zeta Global (NYSE: ZETA), we help enterprise brands and agencies Achieve the Impossible™ with superintelligent marketing. Powered by proprietary AI and trillions of real-time signals, the Zeta Marketing Platform (ZMP) brings martech and adtech together – unifying identity, intelligence, and activation in one unified place. We enable marketers to deliver personalized experiences that drive measurable growth in the next era of marketing. At the center of this evolution is Athena by Zeta, our superintelligent conversational agent built for predictable, profitable growth. Seamlessly integrated into the ZMP, Athena helps marketers understand performance, identify opportunities, and take action in real time—surfacing insights on spend, audiences, and campaigns, recommending next best moves, and even launching and optimizing campaigns on their behalf. Behind our platform is a global team of 3,000+ employees driven by innovation, collaboration, and a shared focus on customer success. Founded in 2007 by David A. Steinberg and John Sculley, Zeta is headquartered in New York City. Learn more at www.zetaglobal.com