Cisco

Principal Machine Learning Engineer

Cisco
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5 days ago
San Jose, CA, USAStaff+
H1B sponsor

Base Salary

$296k - $375k/yr

Responsibilities

  • Design and build robust, multi-tenant AI platform services with scalable APIs, versioning, backward compatibility, and quota management.
  • Select, evaluate, and implement models, frameworks, inference runtimes, and orchestration technologies across GPU, CPU, edge, cloud, on-premises, and air-gapped environments.
  • Develop, fine-tune, and optimize AI models and production LLM or SLM inference runtimes.
  • Architect and deploy production RAG systems, agentic workflows, and AI platform APIs.
  • Design automated evaluation frameworks using golden datasets, LLM-as-a-judge methods, drift detection, and regression gates.
  • Improve token efficiency, model selection, inference performance, and compute utilization to establish AI cost-efficiency standards.
  • Lead architecture and design reviews, resolve technical trade-offs, mentor senior engineers, and influence platform direction.

Requirements

  • Bachelor’s degree plus 14 years, master’s degree plus 11 years, or PhD plus 7 years of related experience.
  • Experience developing, fine-tuning, and optimizing models in Python with PyTorch or JAX, including PEFT, LoRA, quantization, and distillation techniques.
  • Experience architecting and deploying production LLM or SLM inference runtimes using continuous batching, KV-cache management, or speculative decoding.
  • Experience architecting and deploying production RAG systems and agentic workflows using vector databases.
  • Experience designing automated AI evaluation frameworks with golden test datasets, LLM-as-a-judge methodologies, drift detection, or regression gates.
  • Experience architecting production AI platform APIs with quota management, versioning, and deployment across hybrid-cloud and air-gapped environments.
  • Preferred qualifications include industry contributions through publications, patents, conference presentations, or open-source AI/ML projects.
  • Preferred experience includes optimizing inference for CPUs, NPUs, small GPUs, and on-premises hardware appliances.

Benefits

  • Hybrid schedule requiring three days per week onsite in San Jose, California.
  • Base salary range of $296,300.00 to $374,800.00 for U.S. and/or Canada locations, excluding incentive compensation, equity, and benefits.
  • Medical, dental, and vision insurance; 401(k) with Cisco matching; paid parental leave; disability coverage; and basic life insurance.
  • Paid holidays, birthday time off, year-end shutdown, wellness days, vacation or flexible vacation, sick time, family emergency leave, and optional volunteer days.
  • Eligibility for annual bonuses, Cisco restricted stock units, and additional benefits subject to applicable policies and plan eligibility.

Tech Stack

Categories

Cisco

About Cisco

10,000+ employees

Cisco designs and sells networking, security, and collaboration platforms for enterprises, service providers, and governments, spanning routers and switches, Wi‑Fi, firewalls, zero‑trust, observability, and cloud-managed IT (Meraki) plus Webex. Its business model mixes hardware, software subscriptions, and support/consulting services. Founded in 1984 and headquartered in San Jose, California, Cisco is a public company traded on Nasdaq and serves customers across data centers, campuses, and service provider networks.

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