C

Cisco

Makes networking gear and security software

Machine Learning Engineering Technical Leader

Natural Language Processing & LLMsConfirmed live in the last 24 hours
Full-timeHybrid

About the Job

Requirements

  • A BA/BS with at least 8 years of relevant experience, an MS with at least 6 years, or a PhD with at least 3 years in Computer Science, Machine Learning, or a related quantitative field.
  • Experience taking machine-learning or LLM-based systems into production and owning them operationally, rather than only building prototypes.
  • Experience with Python and modern deep-learning frameworks such as PyTorch or TensorFlow.
  • Experience designing evaluation, measurement, or quality systems for ML or LLM products, including datasets, metrics, judges, benchmarks, or regression suites.
  • Experience setting technical direction across multiple teams through influence rather than reporting lines.

Responsibilities

  • Own the evaluation roadmap and strategy for agentic AI quality, from architecture through production.
  • Design a layered evaluation architecture with deterministic checks on every pull request, model-based evaluation before release, and human-expert calibration.
  • Build and calibrate multi-model LLM-as-judge panels, tracking true-positive and true-negative rates separately.
  • Run the human-in-the-loop process with subject-matter experts, turning annotations into training signals for automated judges.
  • Score production traffic online, alert on regressions and drift, and convert real traces into offline test cases.
  • Lead simulation, synthetic-data, and adversarial testing without consuming laboratory resources.
  • Close the loop from evaluation failure to clustered issue, candidate fix, and shadow or A/B validation.
  • Ensure trustworthy results through experiment snapshots, dataset versioning, coverage reporting, and cost tracking.
  • Drive common standards, data contracts, and judge criteria across partner teams without direct authority.
  • Mentor engineers, set evaluation-engineering standards, and represent the domain to senior leadership.

Desired Qualifications

  • Practical experience designing and calibrating LLM-as-judge systems and validating them against human experts, including inter-annotator agreement and judge drift.
  • Experience evaluating agentic systems by measuring multi-step reasoning, tool selection, trajectory quality, and root-cause correctness rather than single-turn output quality.
  • Experience with production monitoring at scale, including asynchronous scoring of live traffic, drift detection, and actionable alerting.
  • Experience building reproducible test environments or synthetic-data generation for domains where ground truth is scarce.
  • Experience integrating automated evaluation into build pipelines and using it to gate releases.
  • Familiarity with telemetry, topology, and failure modes of enterprise networking and observability systems.
  • Experience with cost-aware inference techniques, including routing, model selection, and optimization that keep evaluation economically viable at production volume.
  • Publications at top machine-learning venues, open-source contributions, or public technical writing in the evaluation space.

About the Company

Cisco

Makes networking gear and security software

Cisco makes the switches and routers that connect offices, data centers, and cloud services, and it also sells cybersecurity tools and Webex video meetings to businesses and governments. It was one of the first companies to sell routers that let different kinds of computer networks exchange data, and in 2000 it briefly became the world's most valuable company. Customers run its network gear, from Wi-Fi access points to AI data center systems, with Cisco software that sets up and secures the network, while its Splunk unit searches computer logs to catch outages and attacks. Cisco earns money from hardware sales, software subscriptions, and support contracts. It was founded in 1984 and is based in San Jose, California.

Company size
10,001+
Company stage
IPO
Headquarters
San Jose, CA
Founded
1984

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