{"id":926631,"url":"https://alion.io/job/zensar-technologies-data-engineer-airflow-sqlsnowflake-python","title":"Data Engineer – Airflow / SQL/Snowflake / Python","company":{"id":59576,"name":"Zensar Technologies","domain":"zensar.com","url":"https://alion.io/company/zensar-technologies","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"services","is_intermediary":false,"listed_via":null,"ats_vendor":"Oracle","truth_index":{"grade":"A","score":93,"open_postings":38,"ghost_share":0.079,"stale_share":0.105,"repost_share":0.342,"time_to_fill_p50_days":6,"computed_at":"2026-11-02T06:13:15Z"}},"role":"Data Science","role_family":"Data Science","seniority":null,"employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Pune, India"],"countries":["IN"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Airflow","optional":false},{"name":"CI/CD","optional":false},{"name":"Git","optional":false},{"name":"pySpark","optional":false},{"name":"Python","optional":false},{"name":"Rest API","optional":false},{"name":"SOAP","optional":false},{"name":"SQL","optional":false},{"name":"Spark","optional":true}],"status":"closed","first_seen_at":"2026-09-15T00:00:00Z","employer_posted_date":"2026-10-28","last_verified_at":"2026-10-31T16:01:55Z","board_verified":false,"closed_at":"2026-10-31T16:01:55Z","days_open":46,"trust":{"level":"ok","repost_count":2,"flags":["repost"],"days_open":46},"description":"We are looking for a hands-on Data Engineer who can independently design, build and operate production-grade data pipelines using Apache Airflow. This is a delivery-facing engineering role: you will own complex, multi-dependency DAGs end to end from ingestion and transformation logic through to scheduling, monitoring, failure recovery and performance tuning.\nThe ideal candidate writes production-quality Python, is genuinely strong in SQL (including analytical functions, complex joins and query optimization), and has debugged enough real pipeline failures to have opinions about idempotency, backfills and retry strategy. You will work closely with data architects, analysts and business stakeholders, and will be expected to raise the engineering standard of the pipelines you touch.\n Orchestration & Pipeline Engineering\nDesign, develop and maintain complex Airflow DAGs involving multi-stage dependencies, dynamic task generation, branching, sensors, task groups and cross-DAG triggers.\n\nBuild pipelines that are idempotent, restart able and backfill-safe, with correct handling of scheduling intervals, catchup behavior, data intervals and time zones.\n\nImplement robust error handling and recovery -retries with backoff, SLAs, alerting, callbacks, dead-letter handling and clean partial-failure semantics.\n\nDevelop reusable components: custom operators, hooks, sensors and DAG factory patterns that reduce duplication across the codebase.\n\nManage Airflow configuration properly - connections, variables, pools, priority weights, queues and concurrency/parallelism controls.\n\nSQL Development\nWrite and optimize complex SQL - multi-table joins, CTEs, window/analytical functions, incremental and merge/upsert logic, slowly changing dimensions.\n\nTune query performance: read execution plans, correct inefficient joins and predicates, and apply appropriate partitioning, clustering and indexing strategies.\n\nImplement data quality and reconciliation checks - row counts, null/duplicate checks, referential integrity and business rule validations as first-class pipeline steps.\n\nContribute to dimensional and analytical data model design (star/snowflake schemas, fact and dimension design, grain definition).\n\nPython Development\nWrite clean, modular, testable Python following sound engineering practice - packaging, configuration management, logging, exception handling and type hints.\n\nBuild ingestion and transformation utilities: REST/SOAP API integrations, pagination and rate-limit handling, file parsing (CSV, JSON, Parquet, XML) and data frame processing (pandas / PySpark).\n\nWrite unit and integration tests for pipeline logic, including DAG integrity tests, and participate in code reviews.\n\nOperations, Quality & Collaboration\nMonitor and support production pipelines - triage failures, perform root cause analysis, drive permanent fixes, and reduce recurring incidents.\n\nWork within CI/CD practice: Git-based workflows, branching strategy, automated deployment of DAGs, and environment promotion (Dev → QA → Prod).\n\nTranslate requirements from analysts and business stakeholders into technical designs, and document DAG logic, data lineage and operational runbooks.\n\nB.E. / B.Tech / MCA / M.Sc. in Computer Science, Information Technology or a related discipline.\n\nEquivalent practical experience will be considered for candidates with a demonstrable engineering track record.","description_format":"text","description_chars":3392,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"master","optional":false},"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["IT Consulting & Digital Transformation","IT Outsourcing & Dedicated Teams"],"lifecycle":[{"event":"open","at":"2026-09-15T07:55:59Z"},{"event":"close","at":"2026-09-15T22:04:17Z"},{"event":"reopen","at":"2026-09-16T07:20:18Z"},{"event":"close","at":"2026-09-16T15:01:01Z"},{"event":"reopen","at":"2026-09-17T10:46:06Z"},{"event":"close","at":"2026-09-17T13:53:24Z"},{"event":"reopen","at":"2026-10-06T10:16:35Z"},{"event":"close","at":"2026-10-08T00:46:28Z"},{"event":"reopen","at":"2026-10-28T07:21:00Z"},{"event":"close","at":"2026-10-31T16:01:55Z"}],"visa":[],"liveness":null,"pay":null,"html_url":"https://alion.io/job/zensar-technologies-data-engineer-airflow-sqlsnowflake-python","json_url":"https://alion.io/job/zensar-technologies-data-engineer-airflow-sqlsnowflake-python.json","meta":{"generated_at":"2026-11-03T02:22:40Z","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":3061,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-04T00:00:00Z"}},"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":59576},"rest":"https://alion.io/mcp/rest/get_company?id=59576"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fzensar-technologies-data-engineer-airflow-sqlsnowflake-python"},{"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%2Fzensar-technologies-data-engineer-airflow-sqlsnowflake-python"},{"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%2Fzensar-technologies-data-engineer-airflow-sqlsnowflake-python"},{"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/zensar-technologies-data-engineer-airflow-sqlsnowflake-python\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fzensar-technologies-data-engineer-airflow-sqlsnowflake-python"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":926631}},{"tool":"search_jobs","arguments":{"company":"zensar.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":926631},"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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