{"id":33691,"url":"https://alion.io/job/iliad-free-developpeur-senior-python-paris-hf","title":"Développeur Senior Python - Paris - H/F","company":{"id":6961,"name":"Groupe Iliad","domain":"iliad.fr","url":"https://alion.io/company/groupe-iliad","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"SmartRecruiters","truth_index":{"grade":"B","score":80,"open_postings":18,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":20,"computed_at":"2026-11-12T10:38:37Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"on_site","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":52000,"max_usd":87000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":182},"experience_years_min":10,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Apache Kafka","optional":false},{"name":"Docker","optional":false},{"name":"FastAPI","optional":false},{"name":"Grafana","optional":false},{"name":"Kubernetes","optional":false},{"name":"Linux","optional":false},{"name":"Python","optional":false},{"name":"React.js","optional":false},{"name":"SQL","optional":false},{"name":"SQLAlchemy","optional":false},{"name":"JavaScript","optional":true}],"status":"live","first_seen_at":"2026-07-09T11:59:04Z","employer_posted_date":"2026-07-09","last_verified_at":"2026-11-13T21:35:32Z","board_verified":true,"closed_at":null,"days_open":127,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":126},"description":"Chez Free, tu trouveras une culture interne singulière et très marquée. Il règne un fort état d’esprit collectif. Le recrutement est ouvert, sans a priori : on ne juge les gens ni sur leur âge, ni sur leur background.\nOn aime aller vite, faire les choses nous-mêmes, et on mise sur l’autonomie pour être efficace. Tu verras : chez Free, on se sent libre !\n Dans le cadre d'un programme ambitieux de modernisation et d'évolution de nos Backends.\nTu prendras le leadership technique sur le backend du système d’informations qui gère tous les abonnés de Free : la souscription, l’espace abonné, les services supplémentaires tels que la vidéo et la vente de téléphones mobiles.\nTu développeras une compréhension de processus métier complexes que le système exécute, comme la facturation de services tierce partie, la gestion d’abonnement à ces services, le raccordement à la fibre optique etc.\nTu guideras l’équipe dans la définition de l’architecture de ce système distribué et tu participeras activement au développement en Python en tant que contributeur hands-on.\nTu apporteras des pratiques de développement garantissant la résilience, la qualité, la testabilité et la vélocité des livraisons. Tu contribueras également à la mise en place de méthodes d’exploitation robustes, dans un modèle où les équipes de développement opèrent leurs solutions en production, avec un objectif constant de performance et de scalabilité.\n Compétences requises :\n7 à 10 ans d’expérience en ingénierie Python dans des contextes critiques nécessitant optimisation, scalabilité et haute performance.\n\nPython3, FastAPI, SQLAlchemy\n\nSQL\n\nSystèmes distribués haute performance et haute disponibilité\n\nLinux, Docker\n\nObservabilité, alerting, Grafana\n\nBonnes pratiques de testing et mise en production (ex : canarying)\n\nSécurité by design\n\nFamiliarité avec les environnements cloud et Kubernetes\n\nCompétences optionnelles :\nFamiliarité avec un bus de données (Kafka ou autre)\n\nDéveloppement frontend (React)\n\n Avantages :\nCarte restaurant SWILE (10,5€ par jour pris en charge à 60%)\nIntéressement/Participation\nTélétravail jusqu'à 6 jours par mois (après phase d’intégration)\nLe groupe Iliad s’engage pleinement en faveur de ses collaborateur·rice·s, à travers une politique stricte de non-discrimination et de lutte contre le harcèlement. Toutes les candidatures sont les bienvenues, quels que soient le parcours, l’âge, l’origine, le genre ou l’orientation sexuelle.","description_format":"text","description_chars":2444,"description_truncated":false,"requirements":{"experience_years_min":10,"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":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Cloud Platforms (IaaS & PaaS)","Mobile Networks","Broadband"],"lifecycle":[{"event":"open","at":"2026-07-09T11:59:04Z"}],"visa":[],"liveness":{"score":8,"band":"cold","label":"Long shot","p_open":1,"p_active":0.271,"p_room":0.28,"age_days":125,"expected_fill_days":20,"reasons":["conf:2","stale_co","velocity","win:tail","crowd:"],"computed_at":"2026-11-12T10:38:37Z"},"pay":null,"html_url":"https://alion.io/job/iliad-free-developpeur-senior-python-paris-hf","json_url":"https://alion.io/job/iliad-free-developpeur-senior-python-paris-hf.json","meta":{"generated_at":"2026-11-13T22:37:42Z","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":45063,"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":6961},"rest":"https://alion.io/mcp/rest/get_company?id=6961"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Filiad-free-developpeur-senior-python-paris-hf"},{"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%2Filiad-free-developpeur-senior-python-paris-hf"},{"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%2Filiad-free-developpeur-senior-python-paris-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/iliad-free-developpeur-senior-python-paris-hf\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Filiad-free-developpeur-senior-python-paris-hf"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":33691}},{"tool":"search_jobs","arguments":{"company":"iliad.fr","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":33691},"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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