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Speech Recognition Engineer

Department: Software

Location: Paris

Req#: 6028

Please submit a cover letter with answers to the following questions with your application:
  • Why Sonos?
  • Tell us about a project you loved working on?

At Sonos we're passionate about creating the ultimate listening experience for our customers and connecting them to the content they want, where they want it. This experience is shaped by each of us: our ability to collaborate across different styles and skill sets, and our openness to new ideas. Each member of each team at Sonos offers different aspects of diversity that are embraced and celebrated, and we know that makes us stronger. 

Our Acoustic Modeling team is collaborating closely with our Machine Learning Engineering team to train, test, and deploy a state-of-the-art, deep-learning based system to transcribe voice into text. This critical work will add to our customers’ ease of use and control as we continue to differentiate an end-to-end Sonos experience for them. 
About You

More than a candidate that checks every box, we’re looking for people who are excited to work, learn, and grow at Sonos—no matter their background or how they identify. If that’s you, we hope you’ll apply for this role.

You want to be part of a team.

You come with new ideas and a unique point of view. You look forward to collaborating with a diverse team of individuals. You assume everyone’s best intentions, welcome a healthy debate, and embrace differing opinions. You eagerly seek and give help. Transparency tops your list of values, and you proactively contribute to a culture of respect and inclusion.

You enjoy a challenge.

Inquisitive and focused, you see every challenge as an opportunity. You’re ambitious and comfortable making mistakes because you learn from them and bounce back quickly. You would rather create the future than wait for it. You prioritize long-term value over short-term objectives.

You love to listen.

You approach every interaction with curiosity and a desire to understand. You want to make a positive impact in the world. You’re passionate about culture and know the power that music, film, podcasts, games, and stories have to bring people together.

What You’ll Do
  • Train state of the art acoustic models 
  • Minimize the model footprint while keeping high performance in both noisy and far field conditions 
  • Manage, scale and optimize our Kaldi training pipeline (data management, infrastructure and metric tracking)
Skills You’ll Need
  • Experience with machine learning models applied to speech recognition (GMM-HMM, DNN-HMM, E2E models) and related algorithm (forward-backward, viterbi search, backprop, etc)
  • Python, C++
  • Good knowledge of Kaldi, and at least one other deep learning framework (Tensorflow, PyTorch)
  • MS / PhD in Computer Science or Machine Learning
  • At least two years of experience in deployment of machine learning models in production
  • Excellent verbal and written communication skills (English)

Preferred Qualifications:
  • Experience using Docker
  • SQL, noSQL database
  • Rust

More About Sonos

Sonos is a sound experience company. We pioneered multiroom wireless audio, made it sound amazing, and changed the way people listen, making it effortless for them to enjoy what they want, where they want, how they want.

Today we continue empowering listeners by developing new technologies, thoughtfully designing products, expanding our software platform, and crafting brilliant sound experiences while participating in a culture that values respect, transparency, collaboration, and ownership.

Together we’re working to positively impact the world and inspire everyone to listen better—because listening brings people together, builds understanding, drives change, and makes us happier.

Notice to European Job Applicants: Information you submit as a part of your job application will be used in accordance with Sonos EU Job Applicant Privacy Notice.

Notice to U.S. Job Applicants: Sonos is an equal opportunity employer. We evaluate qualified applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, veteran status, and other legally protected characteristics.

Follow the links to review the EEO is the Law poster and its supplement. The pay transparency policy is available here. Sonos is committed to working with and providing reasonable accommodations to individuals with disabilities. If you need a reasonable accommodation because of a disability for any part of the employment process, please send an e-mail to and let us know the nature of your request and your contact information.