Senior Software Engineer

WHO WE ARE Zeta Global (NYSE: ZETA) is the AI-Powered Marketing Cloud that leverages advanced artificial intelligence (AI) and trillions of consumer signals to make it easier for marketers to acquire, grow, and retain customers more efficiently. Through the Zeta Marketing Platform (ZMP), our vision is to make sophisticated marketing simple by unifying identity, intelligence, and omnichannel activation into a single platform – powered by one of the industry’s largest proprietary databases and AI. Our enterprise customers across multiple verticals are empowered to personalize experiences with consumers at an individual level across every channel, delivering better results for marketing programs. Zeta was founded in 2007 by David A. Steinberg and John Sculley and is headquartered in New York City with offices around the world. To learn more, go to www.zetaglobal.com . The Senior / Lead Software Engineer builds, refines, and operates the Real-Time Events component of the Zeta Marketing Platform (including LiveIntent). They design high-performance, low-latency event ingestion pipelines, audience evaluation systems, and privacy-compliant data processing services that handle hundreds of thousands of events per second across AWS, Kinesis, and Kubernetes — ensuring reliability, observability, and cost efficiency at scale. We're looking for engineers who can: Design high-throughput event ingestion and processing pipelines (Kinesis, Kafka, Firehose). Build services that collect pixel events, conversion signals, and identity data in real time, with sub-50ms collection latency at 500K+ events/second. Build reliable, low-latency microservices on EKS and AWS. Containerize with Docker, deploy via Helm/FluxCD, and run cost-efficient workloads in Kubernetes with zero-downtime deployments. Implement observability, reliability, and cost efficiency at scale. I nstrument services with metrics, traces, and logs; monitor SLOs; optimize Kinesis shard usage and cluster costs. Work with streaming architectures and data lake delivery (Kinesis, Firehose, S3/Parquet). Design scalable ingestion, enrichment pipelines, and fan-out strategies that keep real-time data flowing to audiences, attribution, and analytics consumers. Make smart language and architecture choices (Scala/ZIO, Java, Python). Choose the right tool for the workload — Scala/ZIO for typed, concurrent effect systems; Java for enterprise integration; Python for scripting and data workflows. Navigate ad-tech and privacy domains (GDPR, CCPA, consent, identity). Build privacy-compliant event pipelines, enforce consent at the edge, and handle data subject requests across distributed systems. Lead through technical influence, mentorship, and ownership. Drive design reviews, share best practices, own on-call, and help teams build reliable, high-quality real-time services. Essential Responsibilities: As a Senior Software Engineer, your responsibilities will include: Building, refining, tuning, and maintaining our real-time infrastructure Designing, developing and maintaining services responsible for data collection and real-time data processing Working with Product Managers to design and build data products Working with our DevOps team to scale and optimize our infrastructure Participate in architecture discussions, influence the road map, take ownership and responsibility over new projects Participating in on-call rotation (be available by phone or email in case something goes wrong) Desired Characteristics: Minimum 4 years of software engineering experience. An undergraduate degree in Computer Science (or a related field) from a university where English is the primary language of instruction is strongly preferred. Strong coding skills. 2+ Years of Experience/Fluency in Scala/Java/Python is a plus Eagerness to learn new things Proficiency in Stream processing frameworks like Spark/Flink/Kafka Streams Proficient with both relational and NoSQL databases Experience with ... (truncated, view full listing at source)