Senior Software Development Engineer

Responsibilities: Own the auto-optimization platform architecture and roadmap alongside engineers, scientists, and product leads Develop the agent execution engine handling orchestration, tool invocation, state management, and scheduling for millions of campaigns Build the action layer to apply agent changes to live campaigns with spend limits, controls, conflict handling, rollback, and full audit trails Define safety standards for automated optimization including observability, drift detection, and safeguards that pause optimization when needed Create offline and online evaluation pipelines (simulation, A/B tests, holdouts) to measure decision quality and advertiser impact Develop a reusable registry of tools/data (auction simulation, ML models, optimizers, campaign data) and integrate tuning pipelines (RL tuning, preference optimization) Prototype new system designs and agent patterns, decide production viability based on data, and ensure latency, availability, and cost targets Mentor engineers, lead design/code reviews, assist with hiring, and own operations (on-call, COEs)

Key requirements: 5+ years of non-internship software development experience 5+ years of programming experience in at least one language 5+ years of leading design or architecture of scalable systems Experience as a mentor, tech lead, or engineering team leadership leadership cross-functional collaboration strong communication LLM-based agent frameworks tool orchestration and MCP (tool integration) auction simulation and optimization techniques