{"id":3104758,"url":"https://alion.io/job/delta-air-lines-lead-data-scientist-2","title":"Lead Data Scientist","company":{"id":6522,"name":"Delta Air Lines","domain":"delta.com","url":"https://alion.io/company/delta-air-lines","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"role":"Data Science","role_family":"Data Science","seniority":"lead","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Bengaluru, India"],"countries":["IN"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":31000,"max_usd":66000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":20},"experience_years_min":7,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Machine Learning","optional":false},{"name":"pySpark","optional":false},{"name":"Python","optional":false},{"name":"Scikit-learn","optional":false},{"name":"SQL","optional":false},{"name":"Databricks","optional":true},{"name":"MLFlow","optional":true},{"name":"NLP","optional":true},{"name":"Spark","optional":true}],"status":"live","first_seen_at":"2026-10-22T18:35:15Z","employer_posted_date":null,"last_verified_at":"2026-10-22T18:35:15Z","board_verified":false,"closed_at":null,"days_open":7,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":7},"description":"Responsibilities: \nLead high-impact analytical and modeling projects from problem definition to measurable business outcome.\nTranslate ambiguous commercial questions into well-structured statistical or optimization problems.\nDesign and run robust analyses, including hypothesis testing, experimental design (A/B and quasi-experimental), power calculations, and model validation and backtesting.\nBuild predictive and prescriptive models using appropriate statistical and machine-learning methods.\nCritically assess model assumptions, bias/variance trade-offs, overfitting risks, and data limitations.\nClearly communicate uncertainty, limitations, and trade-offs to non-technical stakeholders.\nPartner with engineering teams to ensure models are implemented reliably and responsibly in production.\nContribute to our standards for validation, documentation, and reproducible analytical practice.\nMentor the junior members of the team.\n\nRequirements: \n7+ years of software and data science experience.\nStrong foundations in statistics and probability, including hypothesis testing and confidence intervals, regression modeling and diagnostics, and experimental design and causal reasoning.\nUnderstanding of sampling, bias, variance, and uncertainty\nDemonstrable experience applying statistical or ML models to real business problems.\nAbility to explain: Why a model works, when it won't work, what assumptions it relies on, and how confident we should be in its outputs.\nStrong Python skills (e. g., pandas, scikit-learn, PySpark, or similar) and solid SQL capability.\nExperience validating models properly (cross-validation, holdouts, backtesting, sensitivity analysis).\nClear and confident communication with both technical and non-technical stakeholders.\nA degree (or equivalent experience) in statistics, mathematics, computer science, engineering, or a related quantitative field.\nWe value candidates who can reason deeply about a problem, not just apply a library.\n\nPreferred Qualifications: \nStrong communication skills and stakeholder management skills.\nInnovative mindset and a go-getter attitude.\nExperience with optimization methods or operations research.\nExposure to causal inference techniques (e. g., matching, uplift modeling, diff-in-diff).\nExperience applying NLP or GenAI in a statistically responsible way.\nFamiliarity with model lifecycle tools (e. g., MLflow, Databricks).\n\nBehavioral Competencies: \nLead initiatives with high accountability and create a collaborative environment with a solution-based approach.\nServe as a trusted advisor and mentor for the team offering technical advice.\nAbility to communicate with precision, engaging the team and stakeholders to build trust and reliable working relationships across cross-functional teams and geographies, enabling organizational alignment.\nAbility to set priorities with the team by understanding interdependence, inspiring team members with consistent focus, quality output, and timelines.\nConstantly keep oneself updated on current technology and trends to drive innovative decisions through piloting forward-thinking approaches to complex problems in one's own area of work.\nInquisitive to understand customer priorities and business challenges while creating value for technical solutions.\nSkills\nML, data science, machine learning, pandas, py spark, pyspark, python, scikit-learn, sklearn, statistical, statistics","description_format":"text","description_chars":3393,"description_truncated":false,"requirements":{"experience_years_min":7,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Air Transport","Commercial Aviation"],"lifecycle":[{"event":"open","at":"2026-10-22T18:35:15Z"}],"visa":[{"country":"US","licensed_sponsor":true,"evidence":"H-1B filings in 12 months: 79 · green card filings: 69","filings_12m":79,"filings_prev_12m":190,"green_card_filings_12m":69,"median_offered_wage_usd":145169,"route":null,"cap_exempt":false,"checked_at":"2026-10-29T16:27:21+00:00","sources":["US Department of Labor: LCA disclosure data (H-1B, H-1B1, E-3)","US Department of Labor: PERM disclosure data (green cards)"],"filings_for_role_12m":5}],"liveness":{"score":90,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.896,"p_room":1,"age_days":7,"expected_fill_days":28,"reasons":["seen:7","velocity","win:early"],"computed_at":"2026-10-30T05:48:23Z"},"pay":null,"html_url":"https://alion.io/job/delta-air-lines-lead-data-scientist-2","json_url":"https://alion.io/job/delta-air-lines-lead-data-scientist-2.json","meta":{"generated_at":"2026-10-30T17:47:23Z","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":6510,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-31T00:00:00Z"}},"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":6522},"rest":"https://alion.io/mcp/rest/get_company?id=6522"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fdelta-air-lines-lead-data-scientist-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%2Fdelta-air-lines-lead-data-scientist-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%2Fdelta-air-lines-lead-data-scientist-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/delta-air-lines-lead-data-scientist-2\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fdelta-air-lines-lead-data-scientist-2"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3104758}},{"tool":"search_jobs","arguments":{"company":"delta.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3104758},"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. Docs: https://alion.io/developers"}}