{"id":2743594,"url":"https://alion.io/job/nvidia-senior-performance-modeling-architect-cpu-fabric-and-llc","title":"Senior Performance Modeling Architect, CPU Fabric and LLC","company":{"id":6,"name":"NVIDIA","domain":"nvidia.com","url":"https://alion.io/company/nvidia","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"B","score":83,"open_postings":780,"ghost_share":0.022,"stale_share":0.586,"repost_share":0.041,"time_to_fill_p50_days":38,"computed_at":"2026-11-01T06:10:25Z"}},"role":"Hardware","role_family":"Hardware","seniority":"staff","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Santa Clara, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":152000,"max":241500,"currency":"USD","period":"year","gross":null,"usd_annual":241500},"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"Python","optional":false},{"name":"SystemC","optional":false}],"status":"live","first_seen_at":"2026-05-06T00:00:00Z","employer_posted_date":"2026-05-06","last_verified_at":"2026-11-01T22:52:49Z","board_verified":true,"closed_at":null,"days_open":179,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":179},"description":"We are looking for a highly skilled Performance Modeling Architect to lead the architectural definition and improvement of our next-generation CPU Cache Hierarchies and interconnects. This is an outstanding chance to create scalable solutions that connect two fast-paced domains: the high-reliability, low-latency needs of Automotive and the massive efficiency, high-density demands of Data Center systems. You will build the \"source of truth\" models that govern data movement across our silicon, ensuring our next-level caches (L3/System Cache) and coherent fabrics achieve ambitious performance goals.\nWhat you'll be doing:\nAs a core member of the architecture team, your daily work will involve:\nDeveloping and maintaining high-fidelity, cycle-accurate performance models (C++/SystemC) for coherent interconnects and large-scale shared caches.\n\nModeling and analyzing performance bottlenecks across varying scales, from small-cluster automotive SoCs to massive, multi-mesh data center architectures.\n\nEvaluating the performance impact of different coherency protocols (e.g., CHI, ACE, or proprietary) and snooping filters.\n\nRunning and analyzing industry-standard benchmarks (SPEC, MLPerf, Automotive-specific suites) to drive architectural trade-offs.\n\nCollaborating with build and verification teams to correlate performance models with silicon and working with software teams to optimize drivers for the underlying hardware topology.\n\nWhat we need to see:\nTo be successful in this role, you should possess a deep technical foundation in computer architecture:\nA Master’s or Ph.D. in Computer Engineering, Electrical Engineering, or Computer Science (or equivalent experience) with a focus on architecture with 5+ years of experience.\n\nStrong understanding of CPU microarchitecture, memory consistency models, and cache coherency protocols.\n\nProven experience in C++ or SystemC for cycle-accurate or functional modeling.\n\nProficiency in Python or similar scripting languages for processing large datasets, generating performance visualizations, and automating simulation sweeps.\n\nUnderstanding of Network-on-Chip (NoC) topologies (Mesh, Ring, Torus), credit-based flow control, and arbitration logic.\n\nWays to stand out from the crowd:\nWe are looking for individuals who bring a \"systems-thinking\" approach to hardware development. You will stand out if you have:\nCross-Domain Versatility: Practical experience managing the functional safety (ISO 26262) requirements of automotive chips alongside the power-performance-area (PPA) limitations of data center hardware.\n\nHardware Performance Counters: Experience defining or using PMU (Performance Monitoring Unit) events to debug performance on real silicon or emulators.\n\nFormal Methods: A background in using formal verification or mathematical modeling to prove the correctness of complex coherency state machines.\n\nCustom Tooling: A history of building your own internal tools or frameworks to accelerate architectural exploration rather than just using off-the-shelf simulators.\n\nAdvanced Memory Systems: Knowledge of emerging memory technologies like CXL (Compute Express Link) or HBM (High Bandwidth Memory) and how they collaborate with coherent fabrics.\n\nYour base salary will be determined based on your location, experience, and the pay of employees in similar positions. The base salary range is 152,000 USD - 241,500 USD for Level 3, and 184,000 USD - 287,500 USD for Level 4.You will also be eligible for equity and benefits.\nApplications for this job will be accepted at least until May 10, 2026.This posting is for an existing vacancy.\nNVIDIA uses AI tools in its recruiting processes.\nNVIDIA is committed to fostering a diverse work environment and proud to be an equal opportunity employer. As we highly value diversity in our current and future employees, we do not discriminate (including in our hiring and promotion practices) on the basis of race, religion, color, national origin, gender, gender expression, sexual orientation, age, marital status, veteran status, disability status or any other characteristic protected by law.","description_format":"text","description_chars":4104,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"master","optional":false},"security_clearance":false,"languages":[]},"benefits":["Equity"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Processors, MCUs & AI Chips","Servers & Data Center Hardware","Computer Components","AI Chips & Accelerators"],"lifecycle":[{"event":"open","at":"2026-10-16T21:36:25Z"}],"visa":[],"liveness":{"score":9,"band":"cold","label":"Long shot","p_open":1,"p_active":0.321,"p_room":0.28,"age_days":179,"expected_fill_days":38,"reasons":["conf:4","stale_co","velocity","win:tail","crowd:brand"],"computed_at":"2026-11-01T06:10:25Z"},"pay":{"stated_usd_annual":241500,"is_top_pay":false},"html_url":"https://alion.io/job/nvidia-senior-performance-modeling-architect-cpu-fabric-and-llc","json_url":"https://alion.io/job/nvidia-senior-performance-modeling-architect-cpu-fabric-and-llc.json","meta":{"generated_at":"2026-11-01T23:06:55Z","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":35195,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-02T00:00:00Z"}},"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":6},"rest":"https://alion.io/mcp/rest/get_company?id=6"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fnvidia-senior-performance-modeling-architect-cpu-fabric-and-llc"},{"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%2Fnvidia-senior-performance-modeling-architect-cpu-fabric-and-llc"},{"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%2Fnvidia-senior-performance-modeling-architect-cpu-fabric-and-llc"},{"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/nvidia-senior-performance-modeling-architect-cpu-fabric-and-llc\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fnvidia-senior-performance-modeling-architect-cpu-fabric-and-llc"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":2743594}},{"tool":"search_jobs","arguments":{"company":"nvidia.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":2743594},"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. 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