{"id":952790,"url":"https://alion.io/job/wizeline-mid-data-engineer-barcelona-hybrid","title":"Mid Data Engineer (Barcelona hybrid)","company":{"id":685743,"name":"Wizeline","domain":"wizeline.ai","url":"https://alion.io/company/wizeline-3","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"B","score":79,"open_postings":34,"ghost_share":0.265,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":134,"computed_at":"2026-11-04T06:34:25Z"}},"role":"Data Science","role_family":"Data Science","seniority":"middle","employment_type":null,"work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Barcelona, Spain"],"countries":["ES"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":41000,"max_usd":84000,"period":"year","method":"role_seniority_country_cell","sample_n":10},"experience_years_min":3,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Amazon Redshift","optional":false},{"name":"Amazon S3","optional":false},{"name":"AWS","optional":false},{"name":"Databricks","optional":false},{"name":"dbt","optional":false},{"name":"Delta Lake","optional":false},{"name":"IAM","optional":false},{"name":"pySpark","optional":false},{"name":"Python","optional":false},{"name":"Snowflake","optional":false},{"name":"Spark","optional":false},{"name":"SQL","optional":false}],"status":"live","first_seen_at":"2025-12-16T13:38:57Z","employer_posted_date":"2026-10-08","last_verified_at":"2026-11-04T14:55:07Z","board_verified":true,"closed_at":null,"days_open":323,"trust":{"level":"ok","repost_count":0,"flags":["company_stale"],"days_open":322},"description":"We are:\nWizeline, a global AI-native technology solutions provider, develops cutting-edge, AI-powered digital products and platforms. We partner with clients to leverage data and AI, accelerating market entry and driving business transformation. As a global community of innovators, we foster a culture of growth, collaboration, and impact.\n\nWith the right people and the right ideas, there’s no limit to what we can achieve\nAre you a fit?\nSounds awesome, right? Now, let’s make sure you’re a good fit for the role:\nResponsibilities:\nExisting platform (Databricks)\nKeep production pipelines running: ingestion, transformation, and delivery to downstream consumers.\nDiagnose and resolve pipeline failures and data quality issues, often without documentation to fall back on.\nReverse-engineer and document existing transformation logic and business rules - this is the input the migration depends on.\nMigrate legacy tables from Hive Metastore to Unity Catalog.\nMaintain Iceberg-enabled table sharing between Databricks and Snowflake.\nNew development (Snowflake, dbt, Airflow)\nBuild and test dbt models, including incremental materializations and data tests.\nDevelop and maintain Airflow DAGs for orchestration.\nValidate that migrated pipelines produce output equivalent to the Databricks versions.\nContribute to Snowflake modeling, performance, and cost decisions.\nAcross both\nWork directly with client stakeholders on technical topics, alongside the team lead.\nTechnical Requirements\nDatabricks\nPySpark and SQL - able to read, debug, and modify existing pipelines. Deep Spark tuning is not required.\nDelta Lake: MERGE/upsert patterns, table properties, OPTIMIZE, partitioning.\nDatabricks Workflows, cluster configuration, job troubleshooting.\nUnity Catalog: catalogs, schemas, grants, lineage, and the metastore model.\nSnowflake\nWarehouses, roles and grants, and the general operating model.\nQuery performance and an awareness of how compute cost behaves.\nDbt\nModels, sources, tests, and incremental materializations.\nProject structure and how dbt fits into a deployment workflow.\nAirflow\nWriting and maintaining DAGs, operators, scheduling, and dependency management.\nUnderstanding retries, backfills, and idempotent task design.\nFundamentals\n3+ years operating production data pipelines.\nStrong SQL - window functions, complex joins, reading transformation logic written by someone else.\nPython for scripting, automation, and API integration.\nIncremental loading patterns, idempotency, late-arriving data, reprocessing.\nAWS: S3, IAM basics. Basic working knowledge of Redshift and its role in the wider architecture.\nWays of working\nFluent English - client-facing role with stakeholders based abroad.\nSelf-directed. Able to make progress on an unfamiliar codebase without a structured onboarding path, and comfortable asking good questions when context is missing.\nClear communicator: can explain a production incident to a non-technical stakeholder and give a realistic ETA.\nNice-to-have:\nExperience with an actual platform migration, not only greenfield work.\nOpen table formats, particularly Iceberg and cross-platform sharing.\nClickstream or web analytics data (Adobe Analytics, Google Analytics, Segment).\nExperience taking over an undocumented system and stabilizing it.\nAI Tooling Proficiency: Leverage one or more AI tools to optimize and augment day-to-day work, including drafting, analysis, research, or process automation. Provide recommendations on effective AI use and identify opportunities to streamline workflows. \nWhat we offer:\nA High-Impact Environment\nCommitment to Professional Development\nFlexible and Collaborative Culture\nGlobal Opportunities\nVibrant Community\nTotal Rewards\n*Specific benefits are determined by the employment type and location.\nFind out more about our culture here.","description_format":"text","description_chars":3809,"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":[{"language":"English","level":"Advanced (C1)","optional":false}]},"benefits":["Professional development"],"hiring_locations":[{"name":"Spain","iso":"ES","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["IT Outsourcing & Dedicated Teams","AI Consulting & Integration"],"lifecycle":[{"event":"open","at":"2026-09-16T02:17:46Z"}],"visa":[],"liveness":{"score":14,"band":"cold","label":"Long shot","p_open":1,"p_active":0.485,"p_room":0.28,"age_days":322,"expected_fill_days":134,"reasons":["conf:0","velocity","win:tail","crowd:"],"computed_at":"2026-11-04T06:34:25Z"},"pay":null,"html_url":"https://alion.io/job/wizeline-mid-data-engineer-barcelona-hybrid","json_url":"https://alion.io/job/wizeline-mid-data-engineer-barcelona-hybrid.json","meta":{"generated_at":"2026-11-04T19:31:22Z","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":30047,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-05T00:00:00Z"}},"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":685743},"rest":"https://alion.io/mcp/rest/get_company?id=685743"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fwizeline-mid-data-engineer-barcelona-hybrid"},{"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%2Fwizeline-mid-data-engineer-barcelona-hybrid"},{"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%2Fwizeline-mid-data-engineer-barcelona-hybrid"},{"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/wizeline-mid-data-engineer-barcelona-hybrid\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fwizeline-mid-data-engineer-barcelona-hybrid"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":952790}},{"tool":"search_jobs","arguments":{"company":"wizeline.ai","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":952790},"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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