{"id":86799,"url":"https://alion.io/job/cartesia-researcher-models-uk","title":"Researcher, Models (UK)","company":{"id":1846,"name":"Cartesia","domain":"cartesia.ai","url":"https://alion.io/company/cartesia","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"A","score":88,"open_postings":21,"ghost_share":0,"stale_share":0.286,"repost_share":0,"time_to_fill_p50_days":110,"computed_at":"2026-10-27T05:46:45Z"}},"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":"explicit","locations":["London, United Kingdom"],"countries":["GB"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":118000,"max_usd":315000,"period":"year","method":"role_country_seniority_unknown","sample_n":168},"experience_years_min":null,"visa_sponsorship":true,"relocation_package":false,"has_equity":true,"technologies":[{"name":"CNN","optional":false},{"name":"Databricks","optional":false},{"name":"Diffusion Models","optional":false},{"name":"Multimodal AI","optional":false},{"name":"PyTorch","optional":false},{"name":"TensorFlow","optional":false},{"name":"Transformers","optional":false}],"status":"live","first_seen_at":"2025-10-07T00:33:30Z","employer_posted_date":"2025-10-07","last_verified_at":"2026-10-27T20:11:22Z","board_verified":true,"closed_at":null,"days_open":385,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":385},"description":"About Cartesia\nOur mission is to architect AI that learns from and interacts with the world like humans do.\nWe're pioneering the model architectures that will make this possible. Our founding team met as PhDs at the Stanford AI Lab, where we invented State Space Models or SSMs, a new primitive for training efficient, large-scale foundation models. Our team combines deep expertise in model innovation and systems engineering paired with a design-minded product engineering team to build and ship cutting edge models and experiences.\nWe're funded by leading investors at Index Ventures and Lightspeed Venture Partners, along with Factory, Conviction, A Star, General Catalyst, SV Angel, Databricks and others. We're fortunate to have the support of many amazing advisors, and 90+ angels across many industries, including the world's foremost experts in AI.\nAbout the Role\nWe’re opening our first ever office in Europe, and looking to hire incredible talent in London to advance our mission of building real-time multimodal intelligence.\nYour Impact\nConduct groundbreaking research in neural network architecture design to advance the state-of-the-art (SOTA) in alternative architectures (e.g., state space models, efficient Transformers, hybrid architectures).\n\nDesign novel architectures that improve model quality, inference efficiency, and adaptability across diverse deployment environments, from cloud to on-device.\n\nExplore and develop capabilities such as statefulness, long-range memory, and innovative conditioning mechanisms for enhancing model expressiveness and generalization.\n\nInvestigate how architectural decisions impact model trade-offs, including scalability, robustness, latency, and energy efficiency.\n\nDevelop new frameworks and tools to evaluate architectural innovations, benchmarking performance across research and production settings.\n\nCollaborate with cross-functional teams to translate architectural research into scalable and impactful systems for real-world applications.\n\nWhat You Bring\nDeep expertise in architecture design, with experience in researching or deploying advanced architectures (e.g., state space models, transformers, RNN variants, CNN variants).\n\nStrong understanding of how architectures interact with system constraints, including deployment in cloud environments or on-device.\n\nProficiency in designing architectures that balance quality, efficiency, and adaptability across different use cases and modalities (e.g., vision, audio, text).\n\nFamiliarity with generative modeling paradigms like autoregressive and diffusion models, and designing capabilities such as statefulness and conditioning in deep learning models.\n\nA proven research track record in top-tier ML/AI venues (e.g., NeurIPS, ICML, ICLR, CVPR) or demonstrable contributions to state-of-the-art architectures.\n\nExceptional analytical and problem-solving skills, with a focus on experimentation and iterative refinement.\n\nStrong programming skills in deep learning frameworks such as PyTorch or TensorFlow, and experience with profiling tools for understanding model performance.\n\nNice-To-Haves\nPrior research or publications in state space models, efficient Transformers or other alternative architectures.\n\nResearch or practical experience in designing architectures for multi-modal systems.\n\nEarly-stage startup experience or a track record of rapid innovation in R&D environments.\n\nMore Details\nIn-office policy: We’re an in-person team based out of offices in San Francisco, London and Bangalore. We love being in the office, hanging out together, and learning from each other every day.\nVisa sponsorship: We provide visa sponsorship support and assess each circumstance on a case-by-case basis. However, visa sponsorship is dependent on many factors, including the role you are applying for, and the location you are going to be based, and so we can't always guarantee success. Your Recruiter will work with you to understand your visa sponsorship needs from the first call.\nWe ship fast. All of our work is novel and cutting edge, and execution speed is paramount. We have a high bar, and we don’t sacrifice quality or design along the way.\nWe support each other. We have an open & inclusive culture that’s focused on giving everyone the resources they need to succeed.\nOur Benefits (US Employees Only)\nCompensation Competitive base salary alongside attractive equity package.\nHealth Insurance Fully covered medical insurance along with dental and vision for you and your family.\nParental Leave 9 weeks paternity & 12 weeks maternity leave\n401(k)\nCommuter Allowance A monthly stipend to help you get to and from the office.\nFlexible PTO Take as much time as you need to recharge your batteries.\nMeals & Snacks Lunch, dinner and plenty of snacks, provided daily.\nYour own personal Yoshi\nOur Commitment to Equal Opportunity\nCartesia is an equal opportunity employer. We consider qualified applicants without regard to race, color, religion, sex, national origin, age, disability, veteran status, genetic information, or any other legally protected status.","description_format":"text","description_chars":5078,"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":["Equity","Health insurance","Parental leave"],"hiring_locations":[{"name":"United Kingdom","iso":"GB","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Speech & Audio AI","Foundation Models","AI Research Labs","Generative Audio & Music"],"lifecycle":[{"event":"open","at":"2025-10-07T00:33:30Z"},{"event":"open","at":"2026-09-05T08:44:40Z"}],"visa":[],"liveness":{"score":7,"band":"cold","label":"Long shot","p_open":1,"p_active":0.253,"p_room":0.28,"age_days":385,"expected_fill_days":110,"reasons":["conf:3","velocity","win:tail","crowd:"],"computed_at":"2026-10-27T05:46:45Z"},"pay":null,"html_url":"https://alion.io/job/cartesia-researcher-models-uk","json_url":"https://alion.io/job/cartesia-researcher-models-uk.json","meta":{"generated_at":"2026-10-27T23:32:03Z","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":15676,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-28T00:00:00Z"}},"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":1846},"rest":"https://alion.io/mcp/rest/get_company?id=1846"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fcartesia-researcher-models-uk"},{"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%2Fcartesia-researcher-models-uk"},{"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%2Fcartesia-researcher-models-uk"},{"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/cartesia-researcher-models-uk\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fcartesia-researcher-models-uk"}]}