{"id":970959,"url":"https://alion.io/job/c12-senior-software-engineer","title":"Senior Software Engineer","company":{"id":1905,"name":"C12","domain":"c12qe.com","url":"https://alion.io/company/c12qe","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Lever","truth_index":{"grade":"A","score":94,"open_postings":10,"ghost_share":0.1,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":56,"computed_at":"2026-10-17T05:46:00Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Paris, France"],"countries":["FR"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":51000,"max_usd":87000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":163},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Apache Kafka","optional":false},{"name":"CI/CD","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Prefect","optional":false},{"name":"Python","optional":false},{"name":"RabbitMQ","optional":false},{"name":"SQLAlchemy","optional":false},{"name":"ZeroMQ","optional":false},{"name":"C","optional":true}],"status":"live","first_seen_at":"2026-09-16T15:28:58Z","employer_posted_date":"2026-09-16","last_verified_at":"2026-10-17T09:04:31Z","board_verified":true,"closed_at":null,"days_open":30,"trust":{"level":"ok","repost_count":0,"flags":["company_stale"],"days_open":30},"description":"Your role at C12 Quantum Electronics:\nThe Software team is here to assist and facilitate the work of the research teams towards building a quantum computer.\nAs a Senior Software Engineer, you will be at the forefront of shaping the future of quantum measurement and help build the framework that runs experiments on quantum computers. Your expertise will drive the development and innovative solution that bridges the gaps between our R&D and engineering, enabling breakthrough in quantum technology.\nKey responsibilities:\nLead the design and development of our core quantum measurement software framework, ensuring high performance and long-term maintainability\nPartner with our R&D and other engineering teams at C12 to translate complex experimental requirements into robust, scalable software solutions\nDefine and document the unified architecture for instrument control, high-throughput data storage, and measurement orchestration to support framework growth\nChampion rigorous software practices, including comprehensive code reviews, proactive design discussions, and robust CI/CD and automated testing pipelines\nTake ownership of the full software lifecycle, delivering robust, secure, and scalable solutions that meet the rigorous demands of quantum R&D\nCultivate a culture of continuous learning by mentoring junior engineers and leading by example in code quality and system design\nAbout you:\nYou have 5+ years of experience building robust backend systems or data-intensive applications\nYou are comfortable working with Python as a primary language; if coming from another background, you are eager to master the ecosystem\nYou’re familiar or comfortable working with message brokers (e.g., RabbitMQ, ZeroMQ, Kafka) and relational databases (PostgreSQL), SQLAlchemy, etc\nPrior experience with orchestration tools like Prefect or Airflow is a strong plus\nA background in physics, engineering, or another quantitative field is a strong plus\nYou are curious, adaptable, ready to discover new languages/frameworks/apis\nA problem solver that tries to use the best tool for the job\nYou communicate clearly in English and work well in collaborative development environments","description_format":"text","description_chars":2176,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[{"language":"English","level":"All levels","optional":false}]},"benefits":["Continuous learning"],"hiring_locations":[{"name":"France","iso":"FR","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Quantum Science & Computing","Quantum Computing Hardware"],"lifecycle":[{"event":"open","at":"2026-09-16T17:50:18Z"}],"visa":[],"liveness":{"score":74,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.825,"p_room":0.9,"age_days":30,"expected_fill_days":56,"reasons":["conf:3","win:mid"],"computed_at":"2026-10-17T05:46:00Z"},"pay":null,"html_url":"https://alion.io/job/c12-senior-software-engineer","json_url":"https://alion.io/job/c12-senior-software-engineer.json","meta":{"generated_at":"2026-10-17T11:54:07Z","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":15690,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-18T00:00:00Z"}},"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":1905},"rest":"https://alion.io/mcp/rest/get_company?id=1905"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fc12-senior-software-engineer"},{"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%2Fc12-senior-software-engineer"},{"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%2Fc12-senior-software-engineer"},{"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/c12-senior-software-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fc12-senior-software-engineer"}]}