{"id":53664,"url":"https://alion.io/job/sonos-senior-machine-learning-scientist-asr","title":"Senior Machine Learning Scientist (ASR)","company":{"id":3723,"name":"Sonos","domain":"sonos.com","url":"https://alion.io/company/sonos","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"B","score":75,"open_postings":7,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":26,"computed_at":"2026-10-20T05:45:00Z"}},"role":"AI/ML","role_family":"AI/ML","seniority":"senior","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Paris, France","France"],"countries":["FR"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":70000,"max":87200,"currency":"EUR","period":"year","gross":null,"usd_annual":100102},"salary_estimate":null,"experience_years_min":8,"visa_sponsorship":true,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"Machine Learning","optional":false},{"name":"Python","optional":false},{"name":"PyTorch","optional":false},{"name":"PyTorch C++","optional":false},{"name":"Rust","optional":false},{"name":"Speech Recognition","optional":false},{"name":"Transformers","optional":false},{"name":"Data Augmentation","optional":true}],"status":"live","first_seen_at":"2026-08-07T00:00:00Z","employer_posted_date":"2026-08-07","last_verified_at":"2026-10-20T12:39:51Z","board_verified":true,"closed_at":null,"days_open":74,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":74},"description":"At Sonos we want to create the ultimate listening experience for our customers and know that it starts by listening to each other. As part of the Sonos team, you’ll collaborate with people of all styles, skill sets, and backgrounds to realize our vision while fostering a community where everyone feels included and empowered to do the best work of their lives.\nSenior Machine Learning Scientist (ASR)\nLocation: Paris - Hybrid (3 days in office)\nSalary: €70,000 - €87,200\nWe are unable to provide relocation assistance or sponsor a work visa or residence permit for this position.\nIn the Sonos Voice Control team we design the future of AI based interactions to power music control and content discovery for Sonos customers on any control surfaces (Sonos hardware, Sonos Application, Sonos Voice Control).\nWe are seeking an experienced ML engineer to join the Audio Machine Learning team, focused on building the next generation of Sonos Voice Control. The team develops all audio-based components of Sonos' in-house voice assistant solution, including far-field automatic speech recognition (ASR), wakeword detection, and speech enhancement. The team is also in charge of shipping those models to production and running them efficiently and fast on multiple types of hardware.\nWhat You’ll Do\nWork in the Audio Machine Learning team of Sonos Voice Control, together with a group of experienced machine learning engineers and researchers\n\nDesign and train state-of-the-art machine learning models for automatic speech recognition and wakeword detection\n\nEnsure our models perform the best they can on specialised domains, such as music entities, loudspeaker control and home automation\n\nDefine and implement the data strategy for training and testing, as well as audio augmentation to reflect the far-field acoustic conditions of our products\n\nMaintain and improve scalable and efficient training and evaluation pipelines\n\nContribute to the team’s roadmap and set the technical direction for the ASR domain\n\nMentor other team members on ML best practices, experiment planning, and model analysis\n\nCollaborate with the cloud backend and embedded engineering teams to ensure our models perform the best they can in the different environments\n\nWhat You’ll Need\nBasic Qualifications\n8+ years experience in machine learning research & engineering for voice applications\n\nA PhD or Master’s degree in computer science, or a related technical field (or equivalent experience)\n\nIn-depth knowledge of speech processing (ASR, wakeword detection, audio features), particularly latest architectures for automatic speech recognition (RNN-T, Transformers)\n\nExperience in owning the whole model development lifecycle from data generation, training, evaluation to shipping models for production\n\nAdvanced knowledge of Python and common machine learning toolkits (PyTorch)\n\nIntermediate knowledge of a low-level compiled language (Rust, C, C++)\n\nPreferred Skills\nExperience in developing models for real-time, low latency, streaming ASR\n\nExperience in model adaptation techniques for large entity catalogs (shallow-fusion biasing, rescoring, error correction)\n\nUnderstanding of the particular challenges of far-field ASR, including acoustics and data augmentation for model training and evaluation\n\nMLOps and software engineering for efficient training and data infrastructure\n\nResearch shows that candidates from underrepresented backgrounds often don't apply for roles if they don't meet all the criteria. If you don’t have 100% of the skills listed, we strongly encourage you to apply if interested.\nYour profile will be reviewed and you'll hear from us once we have an update. At Sonos we take the time to hire right and appreciate your patience.","description_format":"text","description_chars":3731,"description_truncated":false,"requirements":{"experience_years_min":8,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"master","optional":false},"security_clearance":false,"languages":[]},"benefits":["Relocation assistance"],"hiring_locations":[{"name":"France","iso":"FR","kind":"country"}],"hiring_excludes":[],"relocation_offered":true,"industries":["Consumer Electronics","Headphones & Audio","Home Cinema"],"lifecycle":[{"event":"open","at":"2026-08-07T00:00:00Z"}],"visa":[],"liveness":{"score":16,"band":"cold","label":"Long shot","p_open":1,"p_active":0.555,"p_room":0.28,"age_days":74,"expected_fill_days":26,"reasons":["conf:3","velocity","win:tail","crowd:"],"computed_at":"2026-10-20T05:45:00Z"},"pay":{"stated_usd_annual":100102,"is_top_pay":false},"html_url":"https://alion.io/job/sonos-senior-machine-learning-scientist-asr","json_url":"https://alion.io/job/sonos-senior-machine-learning-scientist-asr.json","meta":{"generated_at":"2026-10-20T14:51:00Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":16669,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-21T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":3723},"rest":"https://alion.io/mcp/rest/get_company?id=3723"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fsonos-senior-machine-learning-scientist-asr"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fsonos-senior-machine-learning-scientist-asr"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fsonos-senior-machine-learning-scientist-asr"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/sonos-senior-machine-learning-scientist-asr\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fsonos-senior-machine-learning-scientist-asr"}]}