{"id":823459,"url":"https://alion.io/job/runware-senior-machine-learning-engineer","title":"Senior Machine Learning Engineer","company":{"id":688350,"name":"Runware","domain":"runware.ai","url":"https://alion.io/company/runware","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workable","truth_index":{"grade":"A","score":95,"open_postings":10,"ghost_share":0,"stale_share":0.2,"repost_share":0,"time_to_fill_p50_days":49,"computed_at":"2026-11-07T05:47:08Z"}},"role":"AI/ML","role_family":"AI/ML","seniority":"senior","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":["GB"],"hiring_countries_total":1,"salary":null,"salary_estimate":{"min_usd":101000,"max_usd":181000,"period":"year","method":"role_seniority_country_cell","sample_n":54},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[{"name":"C++","optional":false},{"name":"CUDA","optional":false},{"name":"Diffusion Models","optional":false},{"name":"Fine-tuning","optional":false},{"name":"GitHub","optional":false},{"name":"LoRA","optional":false},{"name":"Machine Learning","optional":false},{"name":"PEFT","optional":false},{"name":"Python","optional":false},{"name":"PyTorch","optional":false},{"name":"Triton","optional":false},{"name":"vLLM","optional":false},{"name":"Docker","optional":true},{"name":"Kubernetes","optional":true},{"name":"Multimodal AI","optional":true},{"name":"Transformers","optional":true}],"status":"live","first_seen_at":"2026-09-09T00:00:00Z","employer_posted_date":"2026-09-09","last_verified_at":"2026-11-07T08:25:35Z","board_verified":true,"closed_at":null,"days_open":59,"trust":{"level":"ok","repost_count":0,"flags":[],"days_open":59},"description":"Join Runware as a Senior Machine Learning Engineer and be at the forefront of developing innovative AI solutions across various media modalities including text, image, video, 3D, and audio. We're building a powerful AI media creation platform designed to revolutionize how content is generated.\nAs a Senior Machine Learning Engineer, you’ll take the lead on critical projects, guiding the end-to-end lifecycle from research and experimentation to production deployment and performance monitoring. Your work will help shape the capabilities of our platform and enhance the experiences of users who rely on our cutting-edge AI technologies.\nWhat You'll Be Doing\nIntegrate open-source and third-party models into our inference platform\nLead fine-tuning initiatives (LoRA, adapters, PEFT, domain adaptation)\nOptimise inference workloads for latency, batching, memory efficiency, and throughput\nBenchmark model quality vs cost vs performance across modalities\nImprove inference startup times and stability under high load\nBuild evaluation frameworks and internal tooling for model validation\nWork closely with Infrastructure and Backend teams on scalable serving systems\nMonitor production performance and drive continuous optimisation\nMentor engineers and help raise the ML engineering bar across the team\nRequirements\nWhat We’re Looking For\nDeep, hands-on expertise in Python and PyTorch, comfortable working at a level well beyond standard framework usage, including the quirks and edge cases that come with pushing Python for ML workloads\nDemonstrated experience building ML applications and models yourself, not just running or deploying existing ones (e.g. serving a pre-built model via vLLM doesn't qualify on its own)\nHands-on experience writing GPU kernels in CUDA/C++, or in Triton\nLow-level experience with model internals e.g. working directly with diffusion model architectures (diffusers or equivalent), not just calling high-level APIs\nExperience with the PyTorch compiler (torch.compile) or comparable low-level PyTorch tooling\nPractical experience fine-tuning large models as a repeatable service (LoRA, PEFT, adapters), built for speed and reuse across many models, not a single one-off training run\nReal, verifiable project history e.g. GitHub repos, demonstrating what you have personally wrote\nHigh ownership and comfort operating in a fast-paced startup environment\nNice to have\nExperience optimizing inference workloads in GPU environments\nExperience with vLLM or custom inference servers\nExperience with diffusion models, LLMs, or multimodal architectures more broadly\nExperience with Kubernetes, Docker, or containerised ML workloads\nExperience building internal ML tooling or developer-facing APIs\nExperience working in high-throughput distributed systems\nBackground in AI media generation (image, video, audio)\nBenefits\nWe’re a remote-first team that comes together in person twice a year to plan, collaborate, and celebrate wins. Day to day we keep a few core hours for teamwork, but outside of that you set the schedule that helps you do your best work.\nWe move quickly and hold a high bar, but we also believe sustainable performance matters. After major releases and milestones, we create space for the team to properly unplug, recharge and come back with the energy to tackle what's next.\nGenerous paid time off - vacation, sick days, public holidays\n Meaningful stock options - share in the upside you create\n Remote-first setup - work from home anywhere we can employ you\n Flexible hours - own your schedule outside core collaboration blocks\n Family leave - paid maternity, paternity, and caregiver time\n Company retreats - twice-yearly gatherings in inspiring locations","description_format":"text","description_chars":3699,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":["Parental leave","Stock options"],"hiring_locations":[{"name":"United Kingdom","iso":"GB","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Generative Image"],"lifecycle":[{"event":"open","at":"2026-09-12T13:41:32Z"}],"visa":[{"country":"GB","licensed_sponsor":true,"adverts_offering_sponsorship_24m":0,"sanctioned_now":false,"evidence":"Licensed UK visa sponsor (Skilled Worker)","filings_12m":null,"filings_prev_12m":null,"green_card_filings_12m":null,"median_offered_wage_usd":null,"route":"Skilled Worker","cap_exempt":false,"checked_at":"2026-11-07T07:57:00+00:00","sources":["UK Home Office: register of licensed sponsors (workers)"],"filings_for_role_12m":0}],"liveness":{"score":47,"band":"ok","label":"Likely open","p_open":1,"p_active":0.854,"p_room":0.55,"age_days":59,"expected_fill_days":49,"reasons":["conf:1","velocity","win:tail"],"computed_at":"2026-11-07T05:47:08Z"},"pay":null,"html_url":"https://alion.io/job/runware-senior-machine-learning-engineer","json_url":"https://alion.io/job/runware-senior-machine-learning-engineer.json","meta":{"generated_at":"2026-11-07T11:25:07Z","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":11520,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-08T00:00:00Z"}},"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":688350},"rest":"https://alion.io/mcp/rest/get_company?id=688350"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Frunware-senior-machine-learning-engineer"},{"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%2Frunware-senior-machine-learning-engineer"},{"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%2Frunware-senior-machine-learning-engineer"},{"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/runware-senior-machine-learning-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Frunware-senior-machine-learning-engineer"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":823459}},{"tool":"search_jobs","arguments":{"company":"runware.ai","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":823459},"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); https://alion.io/mcp with an Alion account has everything. Docs: https://alion.io/developers"}}