{"id":3078748,"url":"https://alion.io/job/voltalis-ingenieur-software-backend-c-python-plateforme-iot-hf","title":"Ingénieur Software Backend C++ / Python — Plateforme IoT H/F","company":{"id":172679,"name":"Voltalis","domain":"voltalis.com","url":"https://alion.io/company/voltalis","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Welcome to the Jungle","truth_index":null},"role":"Backend","role_family":"Backend","seniority":null,"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":54000,"max_usd":96000,"period":"year","method":"role_country_seniority_unknown","sample_n":508},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"ClickHouse","optional":false},{"name":"Python","optional":false}],"status":"live","first_seen_at":"2026-10-22T10:29:44Z","employer_posted_date":"2026-10-22","last_verified_at":"2026-10-26T13:11:14Z","board_verified":true,"closed_at":null,"days_open":4,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":4},"description":"Rejoins Voltalis, une entreprise innovante qui met la technologie au service de la flexibilité énergétique. En tant qu'Ingénieur Software Backend, tu seras responsable du développement des services backend en C++ et Python, de la construction d'une chaîne de commande robuste, du traitement des séries temporelles à grande échelle, de l'industrialisation des stratégies de pilotage et de l'assurance de la fiabilité en production. Tu travailleras en collaboration avec les équipes logiciel embarqué, data et optimisation énergétique.\nMissions\nDévelopper les services backend en C++ et Python pour représenter les équipements, leurs capacités et leurs contraintes.\nConstruire une chaîne de commande robuste pour organiser l’envoi et le suivi des consignes, gérer les priorités et les délais.\nTraiter les séries temporelles à grande échelle en développant et en optimisant l’ingestion, le stockage et l’exploitation des mesures.\nProfil recherché\n**Profil recherché*** Formation d’ingénieur ou équivalent, avec une première expérience solide hors stage et alternance.\n* **Bonnes connaissances en C++ et en Python**, appliquées au développement de services backend déployés en production.\n* Solide compréhension des **architectures distribuées et des échanges asynchrones** : concurrence, gestion des états, délais et reprise sur échec.\n* Expérience des bases de données et du **traitement de séries temporelles à grande échelle**. Une pratique de **ClickHouse constitue un atout**.\n* Pratique des tests automatisés, du diagnostic et de l’optimisation des performances.\n* Rigueur, pragmatisme et attention à la simplicité des solutions, à leur maintenabilité et à leur fiabilité en exploitation.\n* Anglais professionnel permettant de travailler à partir de documentation technique et d’échanger à l’écrit comme à l’oral.\nUne connaissance de l’IoT, des communications temps réel ou du pilotage d’équipements connectés constitue un atout. Une expérience préalable du secteur de l’énergie n’est pas indispensable.","description_format":"text","description_chars":2006,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[{"language":"French","level":"Advanced (C1)","optional":false}]},"benefits":[],"hiring_locations":[{"name":"France","iso":"FR","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Energy Management"],"lifecycle":[{"event":"open","at":"2026-10-22T11:28:55Z"}],"visa":[],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":3,"expected_fill_days":27,"reasons":["conf:1","win:early"],"computed_at":"2026-10-26T05:57:25Z"},"pay":null,"html_url":"https://alion.io/job/voltalis-ingenieur-software-backend-c-python-plateforme-iot-hf","json_url":"https://alion.io/job/voltalis-ingenieur-software-backend-c-python-plateforme-iot-hf.json","meta":{"generated_at":"2026-10-26T18:10:34Z","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":24415,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-27T00:00:00Z"}},"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":172679},"rest":"https://alion.io/mcp/rest/get_company?id=172679"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fvoltalis-ingenieur-software-backend-c-python-plateforme-iot-hf"},{"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%2Fvoltalis-ingenieur-software-backend-c-python-plateforme-iot-hf"},{"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%2Fvoltalis-ingenieur-software-backend-c-python-plateforme-iot-hf"},{"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/voltalis-ingenieur-software-backend-c-python-plateforme-iot-hf\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fvoltalis-ingenieur-software-backend-c-python-plateforme-iot-hf"}]}