{"id":14223,"url":"https://alion.io/job/baseten-software-engineer-model-performance-systems","title":"Software Engineer - Model Performance Systems","company":{"id":4399,"name":"Baseten","domain":"baseten.co","url":"https://alion.io/company/baseten","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"B","score":70,"open_postings":25,"ghost_share":0,"stale_share":0.96,"repost_share":0.04,"time_to_fill_p50_days":82,"computed_at":"2026-10-24T06:02:35Z"}},"role":"Backend","role_family":"Backend","seniority":null,"employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["San Francisco, United States","New York, United States","Toronto, Canada","Montreal, Canada","Seattle, United States"],"countries":["US","CA"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":165000,"max":330000,"currency":"USD","period":"year","gross":null,"usd_annual":330000},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Baseten","optional":false},{"name":"C++","optional":false},{"name":"CI/CD","optional":false},{"name":"Cursor","optional":false},{"name":"GitHub","optional":false},{"name":"HPC","optional":false},{"name":"InfiniBand","optional":false},{"name":"KV Cache","optional":false},{"name":"LLM","optional":false},{"name":"Notion","optional":false},{"name":"Python","optional":false},{"name":"PyTorch","optional":false},{"name":"Spark","optional":false},{"name":"Transformers","optional":false},{"name":"Machine Learning","optional":true}],"status":"live","first_seen_at":"2026-01-07T02:00:15Z","employer_posted_date":"2026-01-07","last_verified_at":"2026-10-24T05:31:36Z","board_verified":true,"closed_at":null,"days_open":290,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":290},"description":"ABOUT BASETEN\nBaseten powers mission-critical inference for the world's most dynamic AI companies, like Cursor, Notion, OpenEvidence, Abridge, Clay, Gamma, and Writer. By uniting applied AI research, flexible infrastructure, and seamless developer tooling, we enable companies operating at the frontier of AI to bring cutting-edge models into production. We're growing quickly and recently raised our $1.5B Series F, led by Altimeter Capital, Conviction Partners, and Spark Capital. Join us and help build the platform engineers turn to ship AI products.\nTHE ROLE\nWe are looking for Software Engineers to join our team. This is a specialized, high-impact role sitting at the intersection of high-performance computing (HPC) and Large Language Model (LLM) engineering. You will not just be building the automated \"speedometer and diagnostic\" suite for our next-generation AI infrastructure; you will be defining the roadmap, driving key technical decisions, and taking full ownership of the future of this work.\nRESPONSIBILITIES\nBenchmarking: Evaluate, run and automate standard LLM quality benchmarks (GSM8K, MMLU) alongside custom performance suites for specific workloads (e.g., long-context window, KV cache reuse, disaggregated serving).\n\nDevEx Improvement: Develop and maintain internal GPU-enabled development environments (similar to GitHub Codespaces). You will ensure the team has seamless, high-performance \"dev machines\" optimized for model experimentation.\n\nTool Development: Build and contribute to open-source tools such as InferenceMAX and genai-bench to automate model evaluation, benchmarking and analysis.\n\nSystem Profiling: Use profilers like PyTorch Profiler, NVIDIA Nsight Systems and py-spy to collect performance profiles, identify bottlenecks, and debug the compute/networking stack.\n\nMonitoring & Observability: Develop real-time dashboards and alerts to monitor system health, model startup times, and runtime performance.\n\nContinuous Integration: Automate performance testing via CI/CD pipelines to catch regressions and build release workflow automation for the model runtimes stack.\n\nOptimization Automation: Build tools to find the \"Pareto frontier\"-identifying the absolute best configuration (latency vs. cost vs. quality) for a given model and workload.\n\nREQUIREMENTS\nThis is a mid-senior, high leverage role. We care about your technical depth, strong communication skills to drive cross-team efforts, ability to navigate vague requirements and mentor other engineers. We want to talk to you if you have:\nA Love for Systems & Hardware: You aren’t just interested in the AI; you want to understand GPU memory subsystems, InfiniBand, and how data moves across a cluster.\n\nAn Automation Mindset: You believe that if a task has to be done twice, it should be scripted. You have a passion for stress-testing and fuzzy testing to find the \"breaking point\" of a system.\n\nMathematical Curiosity: A desire to understand the underlying math of Transformers and how it translates into FLOPs and memory requirements.\n\nTechnical Toolkit: Familiarity with Python, and an eagerness to master the NVIDIA software stack. C++ familiarity is good to have.\n\nWHY THIS ROLE\nDirect Impact: Your tools will be the gatekeeper for what defines \"good\" performance for our customers.\n\nDeep Learning (Literally): You will gain world-class expertise in GPU orchestration and LLM inference that few engineers in the industry possess.\n\nHigh Ownership: As the lead of a small team, you will have the autonomy to build tools from scratch and contribute to open-source projects.\n\nBENEFITS\nCompetitive compensation, including meaningful equity\n\n(U.S. only) 100% coverage of medical, dental, and vision insurance for employee and dependents\n\nFlexible PTO policy including company wide Winter Break (our offices are closed from Christmas Eve to New Year's Day!)\n\nPaid parental leave\n\nFertility and family-building stipend through Carrot\n\n(U.S. only) Company-facilitated 401(k)\n\nExposure to a variety of ML startups, offering unparalleled learning and networking opportunities.\n\nApply now to embark on a rewarding journey in shaping the future of AI! If you are a motivated individual with a passion for machine learning and a desire to be part of a collaborative and forward-thinking team, we would love to hear from you.\nAt Baseten, we are committed to fostering a diverse and inclusive workplace. We provide equal employment opportunities to all employees and applicants without regard to race, color, religion, gender, sexual orientation, gender identity or expression, national origin, age, genetic information, disability, or veteran status.\nWe are an Equal Opportunity Employer and will consider qualified applicants with criminal histories in a manner consistent with applicable law (by example, the requirements of the San Francisco Fair Chance Ordinance, where applicable).","description_format":"text","description_chars":4878,"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","Parental leave","Vision insurance"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"},{"name":"Canada","iso":"CA","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["MLOps","AI Compute & Inference"],"lifecycle":[{"event":"open","at":"2026-01-07T02:00:15Z"},{"event":"open","at":"2026-09-26T00:45:59Z"}],"visa":[],"liveness":{"score":4,"band":"cold","label":"Long shot","p_open":1,"p_active":0.145,"p_room":0.28,"age_days":290,"expected_fill_days":82,"reasons":["conf:0","stale_co","velocity","win:tail","crowd:brand"],"computed_at":"2026-10-24T06:02:35Z"},"pay":{"stated_usd_annual":330000,"is_top_pay":true},"html_url":"https://alion.io/job/baseten-software-engineer-model-performance-systems","json_url":"https://alion.io/job/baseten-software-engineer-model-performance-systems.json","meta":{"generated_at":"2026-10-24T07:41:22Z","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":11308,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-25T00:00:00Z"}},"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":4399},"rest":"https://alion.io/mcp/rest/get_company?id=4399"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fbaseten-software-engineer-model-performance-systems"},{"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%2Fbaseten-software-engineer-model-performance-systems"},{"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%2Fbaseten-software-engineer-model-performance-systems"},{"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/baseten-software-engineer-model-performance-systems\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fbaseten-software-engineer-model-performance-systems"}]}