Lead Engineer - Ad Tech
Core
Lead backend engineer and technical leader for Target's Roundel ad tech platform, designing AI-powered ad decisioning, bidding, and ad explanation systems using LLMs and agentic architectures.
Role type
Senior IC Lead Engineer (Ad Tech & Applied AI)
Builds
Production-grade ad tech platforms (DSP, SSP, Ad Servers) and intelligent AI systems for retail media
Domain
Ad Tech / Retail Media / Applied AI
Deliverable
production ML models | product features
Required skills
Java, Spring, microservices, distributed systems, RDBMS, NoSQL (Cassandra, MongoDB), Kafka, LLM engineering, RAG systems, knowledge graphs, agentic systems, AI evaluation
Preferred skills
DSP/SSP/Ad Server platform experience, hybrid retrieval strategies, multi-agent orchestration
Technologies
Java, Spring, Kafka, Cassandra, MongoDB, LLMs, RAG, Knowledge Graphs
Responsibilities
Define technology strategy for Ad Tech platforms, design and build production LLM-powered applications, lead engineering efforts for complex business challenges, provide technical leadership and mentorship to teams
Seniority
Senior, hands-on IC with leadership responsibilities
