{"id":3431324,"url":"https://alion.io/job/psiquantum-sr-hpc-engineer-platforms","title":"Sr. HPC Engineer - Platforms","company":{"id":1616,"name":"PsiQuantum","domain":"psiquantum.com","url":"https://alion.io/company/psiquantum","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"A","score":93,"open_postings":79,"ghost_share":0,"stale_share":0.076,"repost_share":0,"time_to_fill_p50_days":114,"computed_at":"2026-11-04T06:34:25Z"}},"role":"Industrial Engineering","role_family":"Industrial Engineering","seniority":"senior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Palo Alto, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":133000,"max_usd":252000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":6333},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"CUDA","optional":false},{"name":"HPC","optional":false},{"name":"MPI","optional":false},{"name":"OpenMP","optional":false},{"name":"Ansible","optional":true},{"name":"C","optional":true},{"name":"C++","optional":true},{"name":"cuDNN","optional":true},{"name":"Docker","optional":true},{"name":"Machine Learning","optional":true},{"name":"NCCL","optional":true},{"name":"Python","optional":true},{"name":"PyTorch","optional":true},{"name":"SLURM","optional":true},{"name":"TensorFlow","optional":true},{"name":"TensorFlow C++","optional":true},{"name":"TensorRT","optional":true},{"name":"Terraform","optional":true}],"status":"live","first_seen_at":"2026-10-28T22:22:58Z","employer_posted_date":"2026-10-28","last_verified_at":"2026-11-04T18:09:51Z","board_verified":true,"closed_at":null,"days_open":6,"trust":{"level":"ok","repost_count":0,"flags":[],"days_open":6},"description":"PsiQuantum's mission is to build the first useful quantum computers: machines capable of delivering the breakthroughs the field has long promised. Since our founding in 2016, our singular focus has been to build and deploy million-qubit, fault-tolerant quantum systems. \nQuantum computers harness the laws of quantum mechanics to solve problems that even the most advanced supercomputers or AI systems will never reach. Their impact will span energy, pharmaceuticals, finance, agriculture, transportation, materials, and other foundational industries. \nOur architecture and approach is based on silicon photonics. By leveraging the advanced semiconductor manufacturing industry, including partners like GlobalFoundries, we use the same high-volume processes that already produce billions of chips for telecom and consumer electronics. Photonics offers natural advantages for scale: photons don't feel heat, are immune to electromagnetic interference, and integrate with existing cryogenic cooling and standard fiber-optic infrastructure. \nThat approach has since been tested at the highest level of scrutiny the U.S. government applies to emerging technology, and it has held up. In 2025, PsiQuantum closed a $1 billion funding round that valued the company at $7 billion. In 2026, the U.S. Department of Commerce signed a $100 million Letter of Intent under the CHIPS and Science Act, followed by a $125 million agreement with DARPA under Stage C of its Quantum Benchmarking Initiative, PsiQuantum's most valuable U.S. government agreement to date. This year, we also broke ground on our utility-scale quantum computer in Brisbane, Australia, and continued building out our Chicago site. Victor Peng, our CEO, and co-founder Jeremy O'Brien, now Executive Chairman, lead a team and board that reflects how seriously the world is taking this build, joined this year by Intel's Lip-Bu Tan and Atomico's Niklas Zennström. \nPsiQuantum also develops the algorithms and software needed to make these systems commercially valuable. Our application, software, and industry teams work directly with leading Fortune 500 companies, including Airbus, Lockheed Martin, Mercedes-Benz, Boehringer Ingelheim, and Mitsubishi Chemical, to prepare quantum solutions for real-world impact. \nQuantum computing is not an extension of classical computing. It represents a fundamental shift, and a path to mastering challenges that cannot be solved any other way. The potential is enormous, and we now have the funding, the government validation, and the sites under construction to make it real. \nJob Summary:\nAs an HPC Software Engineer, you will be responsible for designing, developing, and optimizing HPC software solutions that leverage NVIDIA GPUs, AMD CPUs, and MPI for distributed and parallel computing. This role will require a strong foundation in computational science, parallel algorithms, and the specific intricacies of GPU and CPU optimization. You’ll also play a key role in designing and implementing scalable solutions for our HPC clusters, ensuring high-performance applications can run efficiently as nodes scale up to meet expanding global workloads. \nResponsibilities:\nDevelop and Optimize HPC Software: Design and implement software solutions that harness the power of NVIDIA GPUs and AMD CPUs, focusing on maximizing computational efficiency and speed.\nParallel and Concurrent Computing: Employ expertise in MPI, CUDA, OpenMP, and other parallel computing techniques to ensure that applications scale effectively on multi-core and multi-GPU systems.\nScaling and Cluster Management: Contribute to the design, deployment, and scaling of HPC nodes to ensure clusters can expand based on data and computational demands. Optimize software and cluster configurations to enable seamless scaling of nodes.\nAlgorithm Optimization: Identify and implement algorithms best suited for GPU/CPU computing to handle complex computations and data-intensive tasks, with a focus on scalable solutions that maintain performance as node count increases.\nNode Profiling and Performance Analysis: Conduct profiling and benchmarking of HPC applications across scaled environments to identify bottlenecks and ensure consistent performance across nodes. Use tools such as NVIDIA Nsight, AMD μProf, and Intel VTune for performance tuning.\nCollaboration Across Teams: Work closely with scientists, engineers, and IT staff to ensure HPC applications are optimized and scalable for various research and production environments.\nDocumentation and Reporting: Create clear documentation for all code and scaling processes. Report on performance metrics, improvements, and results to stakeholders. \nExperience/Qualifications:\nEducation: Bachelor's or master's degree in computer science, Electrical Engineering, Computational Science, or a related field. Advanced degrees or relevant certifications are a plus.\nExperience: 3+ years of experience in HPC development, with a focus on parallel and distributed computing, and experience with scalable systems. 5+ years previous experience in scientific software development.\nTechnical Skills: NVIDIA GPU Programming: Proficiency in CUDA and familiarity with NVIDIA’s HPC software stack, including cuDNN, NCCL, and TensorRT.\nParallel Programming: Expertise in MPI, OpenMP, and other parallel programming paradigms.\nCluster Scaling and Optimization: Strong understanding of scaling clusters and optimizing software for distributed, multi-node environments.\nLanguages: Strong proficiency in C/C++, Python, and Ansible / Terraform / Packer\n Tools and Frameworks: Familiarity with profiling and performance optimization tools (e.g., NVIDIA Nsight, AMD μProf, Intel VTune).\nSoft Skills: Ability to work independently and as part of a team, excellent problem-solving abilities, strong communication skills, and a keen attention to detail. \nPreferred Skills \nFamiliarity with HPC Environment Management: Experience with Slurm, PBS, or other job scheduling and resource management tools.\nExperience with Containerization: Knowledge of Singularity or Docker in an HPC context.\nExperience with Cloud Scaling Solutions: Understanding of cloud-based HPC scaling solutions or hybrid HPC environments is a plus.\n Machine Learning Acceleration: Experience with machine learning frameworks that utilize GPUs, such as TensorFlow, PyTorch, or PySCF is a plus. \nPsiQuantum provides equal employment opportunity for all applicants and employees. PsiQuantum does not unlawfully discriminate on the basis of race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), gender identity, gender expression, national origin, ancestry, citizenship, age, physical or mental disability, military or veteran status, marital status, domestic partner status, sexual orientation, genetic information, or any other basis protected by applicable laws.\nNote: PsiQuantum will only reach out to you using an official PsiQuantum email address and will never ask you for bank account information as part of the interview process. Please report any suspicious activity  .\nWe are not accepting unsolicited resumes from employment agencies.","description_format":"text","description_chars":7170,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Quantum Science & Computing","Quantum Computing Hardware"],"lifecycle":[{"event":"open","at":"2026-10-29T00:41:07Z"}],"visa":[{"country":"US","licensed_sponsor":true,"evidence":"H-1B filings in 12 months: 23","filings_12m":23,"filings_prev_12m":15,"green_card_filings_12m":0,"median_offered_wage_usd":157500,"route":null,"cap_exempt":false,"checked_at":"2026-10-29T16:27:21+00:00","sources":["US Department of Labor: LCA disclosure data (H-1B, H-1B1, E-3)"],"filings_for_role_12m":0}],"liveness":{"score":90,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.903,"p_room":1,"age_days":6,"expected_fill_days":114,"reasons":["conf:2","velocity","win:early"],"computed_at":"2026-11-04T06:34:25Z"},"pay":null,"html_url":"https://alion.io/job/psiquantum-sr-hpc-engineer-platforms","json_url":"https://alion.io/job/psiquantum-sr-hpc-engineer-platforms.json","meta":{"generated_at":"2026-11-04T19:48:23Z","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":30496,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-05T00:00:00Z"}},"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":1616},"rest":"https://alion.io/mcp/rest/get_company?id=1616"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fpsiquantum-sr-hpc-engineer-platforms"},{"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%2Fpsiquantum-sr-hpc-engineer-platforms"},{"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%2Fpsiquantum-sr-hpc-engineer-platforms"},{"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/psiquantum-sr-hpc-engineer-platforms\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fpsiquantum-sr-hpc-engineer-platforms"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3431324}},{"tool":"search_jobs","arguments":{"company":"psiquantum.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3431324},"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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