{"id":3172823,"url":"https://alion.io/job/sixt-senior-machine-learning-engineer-revenue-management-mfd-3","title":"(Senior) Machine Learning Engineer, Revenue Management (m/f/d)","company":{"id":1756998,"name":"Sixt","domain":"sixt.com","url":"https://alion.io/company/sixt-com","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Career sitemap","truth_index":null},"role":"AI/ML","role_family":"AI/ML","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":["Lisbon, Portugal"],"countries":["PT"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":46000,"max_usd":103000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":15},"experience_years_min":3,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"CI/CD","optional":false},{"name":"Java","optional":false},{"name":"Machine Learning","optional":false},{"name":"Python","optional":false},{"name":"SQL","optional":false}],"status":"live","first_seen_at":"2026-10-23T00:00:00Z","employer_posted_date":null,"last_verified_at":"2026-10-23T00:00:00Z","board_verified":false,"closed_at":null,"days_open":13,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":13},"description":"Sobre a vaga\nMachine Learning Engineering at SIXT turns models into systems that decide prices, forecast demand, and steer a fleet of vehicles. You build these systems with Data Scientists, run them in production, and shape the ML platform while it is still being built in the Team Orange in Lisbon.\n\nO que vais fazer\n\nYou build ML systems together with Data Scientists, from the first design session to the validated outcome in production\nYou own design and architecture: how features are computed once and served consistently, how predictions flow out, how training, serving, and retraining fit together\nYou get models live safely - offline evaluation, shadow runs, champion/challenger, rollback. You run what you ship\nYou make quality structural - you define what a healthy ML system looks like, encode it as automated checks and alerts, and root cause issues so they do not recur\nYou are the bridge to MLOps - you bring the team's needs to the platform, bring platform standards back into the team, and co-own the templates and tooling that make the next use case faster\nYou multiply the team - setting the engineering bar, design how coding agents execute the ML lifecycle from data preparation to deployment, and grow production practice together with Data Scientists\n\nO que é pedido\n\nExperience You have shipped and operated ML systems in production for 3+ years and know where they break: training/serving skew, leakage, drift, silent degradation\nSoftware Engineering You are fluent in Python, SQL and one more language such as Go or Java: you read, review, and debug production code with confidence, whatever agent wrote it\nML Systems Design You design clean contracts between data, model, and consumers and reason about latency, cost, and failure\nML Fundamentals You understand forecasting, regression, and optimization well enough to challenge a model design and to recognize a wrong model in production\nSoftware Factory You define acceptance criteria, orchestrate coding agents for implementation, QA, and security, and step in where they fall short\nPlatform Containers, orchestration, CI/CD, and model registries are daily tools. You have worked hands on in a major cloud platform, ideally AWS\nTeam Spirit You act as a partner to Data Science, Product and Engineering, not a ticket executor: you challenge unclear framing, explain trade offs in business terms, and communicate fluently in English across cultures\n\nValorizado\n\nInfrastructure as code is a plus\n\nO que é oferecido\n\nA Global Tech Hub in Lisbon\nLearning & Knowledge Exchange Level up through regular events with internal and external speakers\nFlexible Work Setup Two office days a week, flexible hours, and modern spaces built for both deep focus and team collaboration\nEnjoy 28 vacation days per year\nAn additional day off on your birthday\nOne volunteer day annually\nPrivate health insurance that also covers your spouse and children free of charge\nYearly Coverflex allowance\nDaily meal allowance\nSIXT Perks Get exclusive rates on all SIXT services, with special discounts extended to your family and friends\n\nResumo organizado por IA a partir do anúncio original. Confirma os detalhes no site da empresa.","description_format":"text","description_chars":3181,"description_truncated":false,"requirements":{"experience_years_min":3,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Flexible schedule","Health insurance"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Travel & Tourism","Car Rental","Buy Now, Pay Later"],"lifecycle":[{"event":"open","at":"2026-10-23T18:46:35Z"}],"visa":[],"liveness":{"score":80,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.888,"p_room":0.9,"age_days":12,"expected_fill_days":29,"reasons":["seen:12","velocity","win:mid"],"computed_at":"2026-11-04T06:34:25Z"},"pay":null,"html_url":"https://alion.io/job/sixt-senior-machine-learning-engineer-revenue-management-mfd-3","json_url":"https://alion.io/job/sixt-senior-machine-learning-engineer-revenue-management-mfd-3.json","meta":{"generated_at":"2026-11-05T03:40:37Z","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":4715,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-06T00:00:00Z"}},"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":1756998},"rest":"https://alion.io/mcp/rest/get_company?id=1756998"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fsixt-senior-machine-learning-engineer-revenue-management-mfd-3"},{"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%2Fsixt-senior-machine-learning-engineer-revenue-management-mfd-3"},{"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%2Fsixt-senior-machine-learning-engineer-revenue-management-mfd-3"},{"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/sixt-senior-machine-learning-engineer-revenue-management-mfd-3\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fsixt-senior-machine-learning-engineer-revenue-management-mfd-3"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3172823}},{"tool":"search_jobs","arguments":{"company":"sixt.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3172823},"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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