{"id":906159,"url":"https://alion.io/job/rime-labs-machine-learning-scientist-2","title":"Machine Learning Scientist","company":{"id":976,"name":"Rime Labs","domain":"rime.ai","url":"https://alion.io/company/rime-labs","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":null},"role":"AI/ML","role_family":"AI/ML","seniority":null,"employment_type":"full_time","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"structured","locations":[],"countries":[],"hiring_countries":["US"],"hiring_countries_total":1,"salary":null,"salary_estimate":{"min_usd":139000,"max_usd":305000,"period":"year","method":"role_country_seniority_unknown","sample_n":4027},"experience_years_min":null,"visa_sponsorship":true,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Machine Learning","optional":false},{"name":"Multimodal AI","optional":false},{"name":"PyTorch","optional":false},{"name":"Text-to-Speech","optional":false},{"name":"Knowledge Distillation","optional":true},{"name":"Model Distillation","optional":true},{"name":"Quantization","optional":true}],"status":"live","first_seen_at":"2026-05-15T17:00:26Z","employer_posted_date":"2026-05-15","last_verified_at":"2026-10-16T23:37:47Z","board_verified":true,"closed_at":null,"days_open":154,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":153},"description":"Machine Learning Scientist\nRime builds voice AI for enterprises running customer experiences at scale. Our text-to-speech models are purpose-built for high-volume conversational deployments, engineered for the pronunciation accuracy, latency, and deployment flexibility that production environments actually demand.\nWe started from a different premise than the rest of the field: voice AI isn't bottlenecked by model architecture. It's bottlenecked by data. So before we trained a single model, we built our own corpus: full-duplex, studio-quality conversational speech, recorded and annotated by PhD linguists. That's our moat. It's also why enterprises pick Rime when pilots need to convert into production.\nWe're backed by top-tier investors including Unusual Ventures, and we've built a team at the intersection of product, research, and craft. Building voice models is an art. We intend to master it.\nRole Overview\nWe're hiring a Machine Learning Scientist to push the frontier of speech synthesis and speech understanding at Rime.\nWhat You'll Own\nDesign, train, and evaluate speech synthesis models, autoregressive and non-autoregressive.\n\nDrive research on full-duplex and half-duplex multi-modal architectures, including unified S2S systems.\n\nChoose and iterate on speech representations: neural codecs, semantic tokens, mel features, continuous latents.\n\nBuild rigorous evaluation, objective and perceptual. Hold the bar on quality and prosodic control.\n\nCollaborate with our linguists on TTS frontend behavior so modeling and frontend choices reinforce each other.\n\nWhat We're Looking For\nDeep familiarity with the speech synthesis literature, contemporary and historical - Tacotron, FastSpeech, VITS, VALL-E, the codec-LM lineage. Opinions on what worked and why.\n\nHands-on training with neural codecs (EnCodec, DAC, Mimi, etc.) and multiple representation choices.\n\nExperience with full- or half-duplex multi-modal modeling (Moshi, LLaMA-Omni, streaming S2S).\n\nStrong attention to detail on data quality. You notice when an annotation pipeline is silently degrading or when an eval set has leakage.\n\nWilling to roll up your sleeves on unglamorous data and training work - paired with the agency to build pipelines so the team isn't stuck doing it by hand.\n\nWorking knowledge of TTS frontend (G2P, normalization, prosody) and experience working with linguists.\n\nStrong PyTorch fundamentals. Comfortable with training loops, distributed training, model internals.\n\nPhD or equivalent research experience in speech, audio, ML, or computational linguistics or a track record that makes the credential irrelevant.\n\nNice to have\nMultilingual TTS experience.\n\nBackground in prosody or paralinguistics.\n\nPublished work in speech, audio, or core ML venues.\n\nExperience taking research models to production: quantization, distillation, streaming inference.\n\nWhy Join Rime\nCategory-defining voice AI infrastructure, not incremental research deltas.\n\nDirect collaboration with founders, including a CEO with a Stanford computational linguistics PhD.\n\nReal impact on company trajectory.\n\nMeaningful equity upside.\n\nHigh ownership, high standards, low bureaucracy.\n\nWhat We Offer\nCompetitive base + meaningful early-stage equity\n\nRemote-friendly\n\nVisa sponsorship available\n\nAccess to a proprietary, full-duplex, studio-quality conversational speech corpus\n\nCompute and tooling to do the work\n\nDirect influence on the future of voice AI\n\nAt Rime, we...\nAre outliers\n\nCut through the hype to focus on the craft\n\nMove fast with agency and freedom\n\nMaintain a growth mindset, finding joy in the struggle\n\nDo the right things, knowing that it'll lead to making money\n\nIf that sounds like you too, you'll be a great fit for Rime!","description_format":"text","description_chars":3721,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"phd","optional":false},"security_clearance":false,"languages":[]},"benefits":["Equity"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Speech & Audio AI","Generative Audio & Music"],"lifecycle":[{"event":"open","at":"2026-09-14T13:50:51Z"}],"visa":[{"country":"US","licensed_sponsor":true,"evidence":"H-1B filings in 12 months: 1","filings_12m":1,"filings_prev_12m":0,"green_card_filings_12m":0,"median_offered_wage_usd":157500,"route":null,"cap_exempt":false,"checked_at":"2026-10-15T11:24:14+00:00","sources":["US Department of Labor: LCA disclosure data (H-1B, H-1B1, E-3)"],"filings_for_role_12m":1}],"liveness":{"score":12,"band":"cold","label":"Long shot","p_open":1,"p_active":0.432,"p_room":0.28,"age_days":153,"expected_fill_days":38,"reasons":["conf:3","win:tail","crowd:"],"computed_at":"2026-10-16T05:45:00Z"},"pay":null,"html_url":"https://alion.io/job/rime-labs-machine-learning-scientist-2","json_url":"https://alion.io/job/rime-labs-machine-learning-scientist-2.json","meta":{"generated_at":"2026-10-17T02:55:46Z","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":3988,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-18T00:00:00Z"}},"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":976},"rest":"https://alion.io/mcp/rest/get_company?id=976"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Frime-labs-machine-learning-scientist-2"},{"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%2Frime-labs-machine-learning-scientist-2"},{"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%2Frime-labs-machine-learning-scientist-2"},{"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/rime-labs-machine-learning-scientist-2\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Frime-labs-machine-learning-scientist-2"}]}