{"id":3266887,"url":"https://alion.io/job/nord-quantique-senior-computational-quantum-physicist-2","title":"Senior Computational Quantum Physicist","company":{"id":9088,"name":"Nord Quantique","domain":"nordquantique.com","url":"https://alion.io/company/nord-quantique","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Career site","truth_index":null},"role":"Quantum","role_family":"Quantum","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":["Sherbrooke, Canada"],"countries":["CA"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":64000,"max_usd":192000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":22},"experience_years_min":3,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"JAX","optional":false},{"name":"NumPy","optional":false},{"name":"Python","optional":false},{"name":"SciPy","optional":false}],"status":"live","first_seen_at":"2026-10-26T09:42:21Z","employer_posted_date":"2026-10-26","last_verified_at":"2026-11-01T04:22:09Z","board_verified":true,"closed_at":null,"days_open":5,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":5},"description":"Senior Computational Quantum Physicist\n(permanent position, 40 hour per week)\nContact: (819) 975-4654,  \n\nAbout Nord Quantique\nAt Nord Quantique, we strive to build impactful technology by relentlessly pushing our understanding of quantum science. We are an interdisciplinary team of scientists, engineers, innovators, builders, and enthusiasts on a mission to make quantum computing a reality. Our quantum processors are designed to reduce errors in quantum computation to facilitate long-term scaling toward fully-fledged quantum computers. We believe it is our responsibility to deliver this transformative technology for the greater good of society.\n\nLocated at the heart of the beautiful Eastern Townships region in the province of Quebec, Canada, we develop our technology in the vibrant quantum ecosystem of Sherbrooke. Leaning on more than a decade of vertical integration of quantum hardware, we are leveraging a comprehensive pool of quantum technology and micro-electronic infrastructure to deploy our quantum computing technology.\n\nOur current needs\nOur Theory and Simulations team develops the models and numerical tools that connect device physics, quantum-control protocols, error correction, and logical performance. These capabilities guide the design of our hardware and are central to evaluating and improving our quantum computing architecture.\nWe are seeking a Senior Computational Quantum Physicist to lead the development of the next generation of simulation methods for bosonic quantum error correction.\nYour mission will be to develop scalable, rigorously validated simulation backends that enable higher-energy multimode simulations and reliable estimation of ultra-low logical error rates.\nMeeting these goals will require new representations and algorithms rather than incremental optimization alone. Promising directions include tensor networks, rare-event sampling, and logical-level or near-Clifford simulation methods.\nYou will help define the technical roadmap, develop and validate new numerical approaches, and shape the architecture of the simulation codebase. You will work closely with other theorists as well as our compiler team.\nWe expect to hire candidates with complementary expertise. You are not expected to specialize in every area described below, but should bring deep expertise in at least one and be able to collaborate effectively across the others.\n\nSpecialization tracks\nStrong candidates will typically bring depth in one or more of the following areas:\n\nTensor-network and compressed bosonic simulation\nDevelop scalable methods for simulating multimode bosonic systems using tensor networks and related compression techniques. Explore their application to larger systems, higher-energy regimes, and both pure- and mixed-state dynamics, while establishing their accuracy, computational advantages, and regimes of applicability.\n\nLogical-level and effective-model simulation\nDevelop efficient models in which the full bosonic state is replaced by an encoded logical qubit together with a controlled number of residual, gauge, or leakage degrees of freedom.\nPossible approaches include Zak-basis subsystem decompositions, effective logical-channel models, and extended-stabilizer simulation methods such as Pauli+. Determine which bosonic effects, correlations, and non-Pauli processes must be retained, establish the regimes in which each effective model remains valid, and benchmark these models systematically against full bosonic simulations.\n\nAdvanced Monte Carlo methods\nDevelop variance-reduction and rare-event sampling techniques for logical-error-rate estimation. Relevant approaches may include importance sampling, biased trajectory ensembles, splitting methods, sequential Monte Carlo, Markov chain Monte Carlo, and related techniques.\n\nHigh-performance scientific software\nDesign and maintain a modular simulation platform that can support multiple physical representations and numerical backends through a consistent Python interface. Improve performance using established high-performance numerical libraries, accelerator-aware frameworks, parallelism, compilation, batching, and efficient data structures. Work with the compiler team to define robust interfaces between compiled quantum programs, physical noise models, simulation backends, and analysis workflows.\n\nWorking in close collaboration with the Theory and Simulations Team, the candidate will (depending on your area of expertise):\nLead the design and implementation of scalable simulation algorithms for bosonic quantum systems and quantum error-correcting codes.\nEstablish the technical roadmap for the evolution of simulation capabilities.\nExtend simulations to larger numbers of modes, higher photon numbers, and more demanding logical-error-rate regimes.\nDevelop new computational representations that exploit the structure of GKP states and multimode bosonic codes.\nBuild efficient simulation methods for both pure-state quantum trajectories and open-system density-matrix evolution.\nDevelop and validate rare-event sampling methods for estimating logical error rates that are inaccessible through direct Monte Carlo sampling.\nDevelop effective and logical-level models, and rigorously benchmark them against higher-fidelity bosonic simulations.\nDefine numerical benchmarks, convergence tests, uncertainty estimates, and validation strategies for new simulation methods.\nOwn and evolve the architecture and scientific quality of the simulation codebase.\nEnsure that new backends integrate cleanly behind shared Python interfaces and can interface with the company’s compiler and broader software stack.\nMake informed choices among JAX and other high-performance numerical or tensor-network frameworks. \nTranslate research prototypes into reliable, maintainable, and well-tested scientific software.\nMentor team members, provide technical reviews, and help establish best practices for computational research.\nCommunicate results and technical trade-offs clearly to scientific, software, and leadership audiences.\n\nEducation and experience requirements :\nA PhD in physics, applied mathematics, computer science, or a related field, or equivalent research experience.\n3+ years of post-graduate experience in quantum industry or academia \nDeep expertise in at least one of the specialization areas described above.\nA strong background in quantum mechanics, numerical physics, scientific computing, or quantum information.\nA demonstrated ability to formulate difficult computational problems and develop new numerical methods to solve them.\nExperience validating approximate numerical methods and identifying their regimes of applicability.\nExperience with high-performance numerical frameworks such as JAX, NumPy/SciPy, Julia, or comparable tools.\nStrong programming skills and experience developing structured, tested, and maintainable scientific software.\nExperience taking leadership of a research or scientific-software project.\nThe ability to provide technical leadership, mentor colleagues, and make sound architectural decisions under research uncertainty.\nStrong written and verbal communication skills and the ability to collaborate across scientific and engineering disciplines.\n\nAdditional assets\nExperience in any of the following would be valuable:\nBosonic quantum error correction, GKP codes, or continuous-variable quantum information\nOpen quantum systems, stochastic Schrödinger equations, or quantum-trajectory methods\nCompiler interfaces, intermediate representations\n\nSought profile:\nStrong ability to adapt in a rapidly evolving environment.\nCollaborative mindset and willingness to actively contribute to collective success.\nThoroughness, attention to detail, and a systematic approach to problem-solving.\nExcellent ability to prioritize work and effectively coordinate multiple activities or projects simultaneously.\nScientific curiosity and a strong interest in complex, interdisciplinary challenges.\nAutonomy and initiative in achieving research and development objectives.\nExcellent communication skills with stakeholders from diverse technical disciplines.\n\nNord Quantique is committed to the principles of equity, diversity, and inclusion in its training, workplaces, and activities. We encourage applications from diverse backgrounds and traditionally marginalized groups.\n\nWorking at Nord Quantique\nAt Nord Quantique, you will be part of something special: working in a highly dynamic environment at the forefront of quantum technology development while benefiting from a vibrant ecosystem located at the heart of the Quantum Innovation Zone of the picturesque city of Sherbrooke. Our interdisciplinary team is laser-focused on solving grand challenges and making quantum computing a reality.\nNord Quantique is an equal-opportunity employer, and we are committed to building a diverse and inclusive work environment where all individuals can fulfill their aspirations while being supported and heard. This also means that we offer flexible work schedules and adapt our methods for the well-being of every individual.\n\nMoving to Nord Quantique\nNord Quantique offers extensive moving support, including help with immigration paperwork, with finding a place to live, with access to childcare and schools, even helping your partner to find a new job. We offer a relocation compensation package and competitive salaries.\nSalary: $150,000 – $180,000\nVacation: 5 weeks per year\nBenefits: Group insurance (including dental care), virtual care, lifestyle spending account (all available after 3 months of service)\nWorking language: English and/or French\nWorkplace: Espace Quantique 1, 1950 rue Roy, Sherbrooke, QC, J1K 1B7 or Ax.c, Place Victoria, 800 Rue du Square-Victoria, Montreal, Quebec, H3C 0B4.\n\n Apply","description_format":"text","description_chars":9786,"description_truncated":false,"requirements":{"experience_years_min":3,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"phd","optional":false},"security_clearance":false,"languages":[{"language":"French","level":"All levels","optional":false},{"language":"English","level":"All levels","optional":false}]},"benefits":["Equity","Flexible schedule"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":true,"industries":["Quantum Science & Computing","Quantum Computing Hardware"],"lifecycle":[{"event":"open","at":"2026-10-26T09:42:21Z"}],"visa":[{"country":"CA","licensed_sponsor":true,"evidence":"Positions approved through LMIA in 12 months: 3","filings_12m":3,"filings_prev_12m":2,"green_card_filings_12m":null,"median_offered_wage_usd":null,"route":"Global Talent Stream; High Wage","cap_exempt":false,"checked_at":"2026-10-03T21:10:52+00:00","sources":["ESDC: employers issued a positive LMIA"],"filings_for_role_12m":2}],"liveness":{"score":90,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.903,"p_room":1,"age_days":5,"expected_fill_days":28,"reasons":["conf:1","velocity","win:early"],"computed_at":"2026-11-01T06:10:25Z"},"pay":null,"html_url":"https://alion.io/job/nord-quantique-senior-computational-quantum-physicist-2","json_url":"https://alion.io/job/nord-quantique-senior-computational-quantum-physicist-2.json","meta":{"generated_at":"2026-11-01T08:07:39Z","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":12644,"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":9088},"rest":"https://alion.io/mcp/rest/get_company?id=9088"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fnord-quantique-senior-computational-quantum-physicist-2"},{"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%2Fnord-quantique-senior-computational-quantum-physicist-2"},{"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%2Fnord-quantique-senior-computational-quantum-physicist-2"},{"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/nord-quantique-senior-computational-quantum-physicist-2\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fnord-quantique-senior-computational-quantum-physicist-2"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3266887}},{"tool":"search_jobs","arguments":{"company":"nordquantique.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3266887},"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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