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Tech Lead-Machine Learning Engineer (Agent & Multi-Agent Systems) – AIGC Risk Intelligence

TikTok · Seattle, Washington, United States of America

Data Science / AI / Machine LearningLeadExternal listingfull-timeRecently

About The Role

Our team is building the next generation of AI-native risk intelligence systems to address emerging challenges driven by large-scale AIGC content production.

As content creation becomes automated and adversaries adopt systematic experimentation (e.g., large-scale template variation and rapid iteration), traditional rule-based and single-model approaches are no longer sufficient. We are transitioning from monolithic LLM applications to a structured multi-agent architecture that emphasizes:

Tool-augmented reasoning (ReAct-style systems)

Modular skill composition

Execution traceability and observability

Feedback-driven system evolution

Cross-domain risk reasoning

We are seeking an experienced technical leader to define and implement this architecture.

Responsibilities

  • Architect and Implement Agent Systems
  • Design structured agent workflows (e.g., Evaluate → Validate → Reflect → Summarize)
  • Implement ReAct-style tool allocation and reasoning frameworks
  • Develop short-term and long-term memory architectures
  • Ensure robustness under adversarial and evolving conditions
  • Lead Multi-Agent Architecture Development
  • Design orchestration layers for coordinating vertical domain agents
  • Build modular Skill systems for extensibility and reuse
  • Define execution graph standards and planning abstractions
  • Establish traceability mechanisms for debugging and auditability
  • Develop Open Risk Detection Capabilities
  • Architect systems capable of identifying previously unseen risk patterns
  • Implement execution trace–driven optimization loops
  • Translate feedback signals (FP/FN, reviewer overrides, drift signals) into system improvements
  • Enable proactive rather than purely reactive detection systems
  • Establish Engineering Standards for Agent Systems
  • Define traceability, observability, and guardrail requirements
  • Evaluate and integrate multi-agent frameworks where appropriate
  • Ensure production-readiness, scalability, and reliability
  • Provide Technical Leadership
  • Own the technical roadmap for Agent and multi-agent systems
  • Partner cross-functionally with Risk, Safety, Infra, and ML teams
  • Mentor engineers and drive architectural rigor

Minimum Qualifications

  • 5+ years of experience in software engineering or applied AI systems
  • Deep understanding of LLM-based agent architectures (ReAct-style reasoning/Tool calling systems/Workflow orchestration/Memory design patterns)
  • Experience designing distributed or modular AI systems
  • Strong backend engineering skills (Python or equivalent)
  • Experience operating systems in adversarial or high-stakes environments

Preferred Qualifications

  • Experience in trust & safety, risk detection, or adversarial ML
  • Familiarity with multi-agent orchestration frameworks
  • Experience building systems with execution trace logging and observability
  • Background in RL-style policy optimization or iterative system refinement
  • Demonstrated experience leading high-impact technical initiatives

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