{"id":2908326,"url":"https://alion.io/job/rezo-ai-ml-engineer-speech","title":"ML Engineer - Speech","company":{"id":27698,"name":"Rezo.ai","domain":"rezo.ai","url":"https://alion.io/company/rezo","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Zoho Recruit","truth_index":null},"role":"AI/ML","role_family":"AI/ML","seniority":null,"employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Noida, India"],"countries":["IN"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Encoder-Decoder","optional":false},{"name":"Fine-tuning","optional":false},{"name":"Python","optional":false},{"name":"PyTorch","optional":false},{"name":"Self-Supervised Learning","optional":false},{"name":"LoRA","optional":true},{"name":"NVIDIA NeMo","optional":true},{"name":"PEFT","optional":true},{"name":"Transformers","optional":true}],"status":"live","first_seen_at":"2026-09-28T00:00:00Z","employer_posted_date":"2026-09-28","last_verified_at":"2026-10-29T18:48:38Z","board_verified":true,"closed_at":null,"days_open":31,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":31},"description":"Responsibilities:\nFine-tune and adapt open-source speech models on our proprietary call audio\nBuild training and evaluation pipelines for multilingual and code-mixed speech\nOwn model quality against metrics that matter operationally - entity and numeric accuracy, latency to first response - not just aggregate error rates\nDesign and run data curation at scale: pseudo-labelling, speech enhancement, quality filtering on messy real-world audio\nWork with our linguist on text normalisation and pronunciation handling\nEvaluate candidate architectures, make the call with evidence, and ship the result to production with the platform team\nRequirements\nMust have skills:\n3-4 years in ML, with at least 18 months on speech or audio specifically\nStrong Python and PyTorch; comfortable reading a paper and implementing it\nHands-on experience fine-tuning at least one production speech model\nSolid grasp of speech fundamentals - mel-spectrograms, acoustic models and vocoders, encoder-decoder vs transducer architectures, evaluation methodology, sampling rates and what they cost you\nUnderstanding of how modern speech systems are actually built: self-supervised encoders, neural audio codecs, LM-based generation, flow matching\nExperience with genuinely messy audio, not only clean benchmark datasets\nNice to have:\nNeMo, ESPnet, SpeechBrain, or Coqui\nTelephony-band or contact-centre audio\nMultilingual or code-switched speech work\nLoRA/PEFT, distributed training\nOpen-source contributions or publications in speech","description_format":"text","description_chars":1508,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Conversational AI","AI Agents","Call Center Services"],"lifecycle":[{"event":"open","at":"2026-10-20T08:41:25Z"}],"visa":[],"liveness":{"score":54,"band":"ok","label":"Likely open","p_open":1,"p_active":0.718,"p_room":0.75,"age_days":31,"expected_fill_days":40,"reasons":["conf:0","win:late"],"computed_at":"2026-10-29T05:49:05Z"},"pay":null,"html_url":"https://alion.io/job/rezo-ai-ml-engineer-speech","json_url":"https://alion.io/job/rezo-ai-ml-engineer-speech.json","meta":{"generated_at":"2026-10-29T22:07:28Z","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":32664,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-30T00:00:00Z"}},"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":27698},"rest":"https://alion.io/mcp/rest/get_company?id=27698"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Frezo-ai-ml-engineer-speech"},{"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%2Frezo-ai-ml-engineer-speech"},{"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%2Frezo-ai-ml-engineer-speech"},{"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/rezo-ai-ml-engineer-speech\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Frezo-ai-ml-engineer-speech"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":2908326}},{"tool":"search_jobs","arguments":{"company":"rezo.ai","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":2908326},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); 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