{"id":4232017,"url":"https://alion.io/job/nvidia-software-engineering-intern-nccl-2027","title":"Software Engineering Intern, NCCL - 2027","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":751,"ghost_share":0.024,"stale_share":0.581,"repost_share":0.057,"time_to_fill_p50_days":43,"computed_at":"2026-11-12T10:38:37Z"}},"role":"Backend","role_family":"Backend","seniority":"intern","employment_type":"internship","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Shanghai, China","Beijing, China"],"countries":["CN"],"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":"C++","optional":false},{"name":"CUDA","optional":false},{"name":"HPC","optional":false},{"name":"InfiniBand","optional":false},{"name":"JAX","optional":false},{"name":"Linux","optional":false},{"name":"MPI","optional":false},{"name":"NCCL","optional":false},{"name":"PyTorch","optional":false},{"name":"SGLang","optional":false},{"name":"TensorFlow","optional":false},{"name":"TensorFlow C++","optional":false},{"name":"vLLM","optional":false},{"name":"XLA","optional":false},{"name":"C","optional":true}],"status":"live","first_seen_at":"2026-11-13T10:22:54Z","employer_posted_date":"2026-11-13","last_verified_at":"2026-11-13T10:22:54Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"NVIDIA is leading the way in groundbreaking developments in Artificial Intelligence, High-Performance Computing and Visualization. The GPU, our invention, serves as the visual cortex of modern computers and is at the heart of our products and services. Our work opens up new universes to explore, enables amazing creativity and discovery, and powers what were once science fiction inventions from artificial intelligence to autonomous cars. NVIDIA is looking for phenomenal people like you to help us accelerate the next wave of artificial intelligence.\nWe are looking for a highly motivated software engineer intern for an exciting role in our communication libraries and network software team. The position will be part of a fast-paced crew that develops and maintains software for complex heterogeneous computing systems that power disruptive products in High Performance Computing and Deep Learning.\nWhat you will be doing:\nDesign, implement and maintain highly-optimized communication runtimes for Deep Learning frameworks (e.g. NCCL for TensorFlow/Pytorch) and HPC programming interfaces (e.g. UCX for MPI/OpenSHMEM) on GPU clusters.\nParticipating in and contributing to parallel programming interface specifications like MPI/OpenSHMEM.\nDesign, implement and maintain system software that enables interactions among GPUs and interactions between GPUs and other system components.\nCreating proof-of-concepts to evaluate and motivate extensions in programming models, new designs in runtimes and new features in hardware.\nWhat we need to see:\nYou are pursuing a Ph.D. in CE/CS/EE with a strong background in computer architecture, operating systems, communication library and/or AI/ML.\nExcellent C/C++ programming and debugging skills.\nStrong experience with Linux.\nExperience with parallel programming interfaces and communication runtimes.\nAbility and flexibility to work and communicate effectively in a multi-national, multi-time-zone corporate environment.\nWays to stand out from the crowd:\nDeep knowledge of high-performance networks like InfiniBand, RoCE etc.\nBackground with HPC applications. Experience with Deep Learning Frameworks such PyTorch, TensorFlow, JAX/XLA, vLLM/SGLang etc.\nExperience with AI/DL communication patterns such as Expert Parallelism (EP), TP, DP, PP and how these patterns can be implemented with NCCL. Experience with CUDA kernel optimization and profiling.\nExperience with large-scale model training and production inference software stack.\nStrong collaborative and interpersonal skills, specifically a proven ability to effectively guide and influence within a dynamic matrix environment.","description_format":"text","description_chars":2628,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"phd","optional":false},"security_clearance":false,"languages":[]},"benefits":[],"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":"2026-11-13T10:22:54Z"}],"visa":[],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":0,"expected_fill_days":43,"reasons":["conf:3","win:early","comp:junior,brand"],"computed_at":"2026-11-13T13:27:41Z"},"pay":null,"html_url":"https://alion.io/job/nvidia-software-engineering-intern-nccl-2027","json_url":"https://alion.io/job/nvidia-software-engineering-intern-nccl-2027.json","meta":{"generated_at":"2026-11-13T13:27:41Z","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":27020,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-14T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.1,"usd":0.01,"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-software-engineering-intern-nccl-2027"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"free","price":{"credits":0,"usd":0},"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-software-engineering-intern-nccl-2027"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.1,"usd":0.01},"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-software-engineering-intern-nccl-2027"},{"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-software-engineering-intern-nccl-2027\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fnvidia-software-engineering-intern-nccl-2027"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":4232017}},{"tool":"search_jobs","arguments":{"company":"nvidia.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":4232017},"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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