Senior Machine Learning Engineer, NLP

Cisco Systems, Inc.; San Jose, California, Miami (CA, MO, FL); On-site; USD 120,000 - 180,000; Full time

Job summary

An established industry player is seeking a Senior Machine Learning Engineer to join their innovative Collaboration AI team. In this role, you'll drive the development of next-generation AI solutions, focusing on Natural Language Processing and Large Language Models for their leading collaboration platform. Your expertise will help enhance team efficiency and improve user experiences through cutting-edge AI technologies. Collaborate with a talented team of specialists, engage in applied research, and prototype innovative concepts that will shape the future of collaboration software. If you're passionate about AI and eager to make a significant impact, this opportunity is for you.

Qualifications

• 5+ years of experience in Natural Language Processing.
• Proficiency with deep learning frameworks and production Python programming.

Responsibilities

• Innovate NLP/LLM solutions for Webex products.
• Conduct applied ML research and deliver actionable recommendations.

Skills

Natural Language Processing

Machine Learning

Deep Learning

Python Programming

AI Technologies

Education

M.S. or Ph.D. in Computer Science

Mathematics or related field

Tools

PyTorch

JAX

Keras

TensorFlow

Job description

AI or Artificial Intelligence, Cloud & AI (DCN & Compute), Services & Software, Software Development, Webex (Collaboration)

Job Id: 1435420

The application window is expected to close on: April 14, 2025.

Meet the Team

Cisco Webex is the world's #1 business collaboration and customer engagement platform, used across all industries to support governments, businesses, education, and more, including use by 85% of Fortune 500 companies.

The workplace of the future will be powered by AI, and we, Collaboration AI, are responsible for building AI/ML intelligent experiences within Cisco’s Webex portfolio. Our team focuses on various AI fronts to enrich collaboration use cases, including audio codec technologies, automatic speech recognition (ASR), text-to-speech (TTS), natural language processing (NLP), and computer vision (CV).

We aim to build next-generation AI solutions in collaboration software, devices, and APIs, enhancing distributed team efficiency and improving all aspects of people connection.

What You’ll Do

As a Senior Machine Learning Engineer on the Collaboration AI team, you will innovate NLP/LLM solutions for Webex products. Your responsibilities include, but are not limited to:

• Explore and implement next-gen LLM technologies, focusing on retrieval-augmented generation (RAG), AI agents, and agentic workflows.
• Fast prototype innovative concepts and create viable paths to production.
• Conduct applied ML research, establish benchmarking methods, evaluate against baselines, perform ablation studies, and deliver actionable recommendations.
• Balance technical trade-offs to determine optimal production solutions.
• Collaborate with system engineers, product managers, and client teams to drive productization.
• Level up the team's AI/ML savviness as an AI knowledge catalyst.

Who You’ll Work With

You’ll join a small, high-caliber team of ML specialists, NLP, Speech, and CV practitioners, product gurus, and world-class designers. We adapt quickly, continuously improve, and deliver high-impact results.

Minimum Requirements

• M.S. or Ph.D. in Computer Science, Mathematics, or a related field.
• 5+ years of experience with Natural Language Processing.
• 2+ years of experience implementing LLM technologies, systems, and applications.
• Proficiency with deep learning frameworks (e.g., PyTorch, JAX, Keras, TensorFlow) and production Python programming skills.

Preferred Requirements

• Proven experience deploying NLP/LLM solutions in production environments.
• Strong judgment to assess practical value versus industry hype.
• Demonstrated persistence in problem-solving complex challenges.
• Deep intellectual curiosity in emerging AI technologies.
• Engineering mentality at heart.
• Research contributions in NLP (publications, patents, presentations) are a plus.

#WeAreCisco

#WeAreCisco where every individual brings their unique skills and perspectives together to pursue our purpose of powering an inclusive future for all.

Our passion is connection—we celebrate our employees’ diverse backgrounds and focus on unlocking potential. Cisconians often experience one company, many careers where learning and development are encouraged and supported at every stage.

Message to applicants applying to work in the U.S. and/or Canada:

When available, the salary range posted for this position reflects the projected hiring range for new hire, full-time salaries in U.S. and/or Canada locations, not including equity or benefits. Individual pay is determined by the candidate's hiring location and additional factors, including skillset, experience, and relevant education.

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