Senior Machine Learning Engineer, ASR

Job description

Collaboration AI is the team responsible for building ML-based intelligent experiences within Cisco’s Webex portfolio of enterprise collaboration and customer engagement platforms. The team is made up of four AI acquisitions and includes technologies such as audio quality enhancement from BabbleLabs, natural language processing (NLP) and computer vision (CV) from MindMeld, automatic speech recognition (ASR) from Voicea, employee network graphs and personal profiles from Accompany, and much more.

What You’ll Do

As a machine learning engineer on the Collaboration AI team, you will research, prototype, develop and deploy ML-based cloud services that power intelligent features in products like the Webex Suite, the Webex Contact Center and others. While you will have an opportunity to contribute to our machine learning efforts across several application domains, this role is particularly focused on accelerating the development and deployment of automatic speech recognition (ASR) models.


Design and develop speech based ML models for tasks such as automatic speech recognition, diarization and text-to-speech.

Conduct data analysis, pre-processing, and cleaning to prepare data for use in training models.

Evaluate and improve the accuracy and performance of existing models, as well as develop new models as needed.

Collaborate with multi-functional teams, including software engineers, linguists, data scientists, and product managers to develop and ship machine learning models.

Stay up-to-date with the latest advancements in speech technology and machine learning and apply them to our work.

Who You’ll Work With

You will join a small, high-caliber team of machine learning specialists, large scale systems experts, NLP, speech and computer vision specialists, product gurus, and world-class designers who are passionate about the future brought by AI. We adapt quickly, continuously improve, and deliver high-impact results. We’re not only aiming to build AI applications; we strive to build the best applications of AI the world has ever seen.

Many of our engineers have founded their own startups prior to forming Collaboration AI, and they bring a wide and diverse set of industry experience and expertise with them. We draw on this well of experiences every day as we collaborate on our own product, tech stack, and go to market strategy. We are dedicated to Webex every day because we use the platform every day. We're highly collaborative, committed to building great things, and consider it a privilege to learn from each other every day.

Desired Skills

Master's degree or higher in Computer Science, Mathematics, or related field.

3-5 years of work experience in machine learning, ASR, NLP or related field.

Strong programming skills in Python, and experience with machine learning libraries such as PyTorch, TensorFlow and XGBoost.

Proficiency in speech based tasks such as automatic speech recognition, diarization and text-to-speech.

Experience with deep learning architectures such as Transformers, LSTMs, etc.

Ability to write clean, efficient, well-tested and documented code.

Strong analytical and problem-solving skills.

Proven track record of designing and shipping ML models in real world production systems.

Good communication skills and ability to work effectively in a globally distributed team environment.

We Are Cisco

#WeAreCisco, where each person is unique, but we bring our talents to work as a team and make a difference powering an inclusive future for all.

We embrace digital, and help our customers implement change in their digital businesses. Some may think we’re old (36 years strong) and only about hardware, but we’re also a software company. And a security company. We even invented an intuitive network that adapts, predicts, learns, and protects. No other company can do what we do - you can’t put us in a box!

But Digital Transformation is an empty buzz phrase without a culture that allows for innovation, creativity, and yes, even failure (if you learn from it.)

Day to day, we focus on the give and take. We give our best, give our egos a break, and give of ourselves (because giving back is built into our DNA.) We take accountability, bold steps, and take difference to heart. Because without diversity of thought and a dedication to equality for all, there is no moving forward.

So, you have colorful hair? Don’t care. Tattoos? Show off your ink. Like polka dots? That’s cool. Pop culture geek? Many of us are. Passion for technology and world changing? Be you, with us!

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