{"id":2182182,"url":"https://alion.io/job/madiff-senior-dwh-analyst","title":"Senior DWH Analyst","company":{"id":4374669,"name":"Madiff","domain":"madiff.eu","url":"https://alion.io/company/madiff-2","size_band":"51-200","is_staffing_agency":true,"employer_type":"agency","is_intermediary":false,"listed_via":null,"ats_vendor":"Zoho Recruit","truth_index":null},"role":"Analytics","role_family":"Analytics","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":["Warsaw, Poland"],"countries":["PL"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":41000,"max_usd":75000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":74},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"ETL/ELT","optional":false},{"name":"SQL","optional":false},{"name":"Azure","optional":true},{"name":"Databricks","optional":true}],"status":"live","first_seen_at":"2026-10-09T15:13:30Z","employer_posted_date":"2026-10-09","last_verified_at":"2026-10-14T19:43:36Z","board_verified":true,"closed_at":null,"days_open":5,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":5},"description":"We are looking for a Senior DWH Analyst to support the development and optimisation of complex Data Warehouse solutions within a large-scale banking environment. The role focuses on data modelling, source-to-target mapping, ETL processes, SQL prototyping, and data transformation logic, translating business requirements into detailed technical specifications and scalable data structures. The consultant will work closely with DWH Developers throughout implementation, testing, and data validation, ensuring the accuracy, consistency, and reliability of data processing across multiple source systems.\nResponsibilities\nGather and analyse user requirements\nTranslate business requirements into DWH data requirements\nIdentify the required information within the data warehouse\nDesign target data models\nIdentify source systems and source data\nPrepare detailed source-to-target mappings\nDesign data processing logic\nPrepare and test SQL prototypes\nSupport developers during implementation\nTest completed solutions\nValidate data quality and correctness\nCoordinate technical work related to changes in the DWH\nPrepare analytical and technical documentation\nRequirements\nMinimum 5 years experience as a DWH / Data Warehouse Analyst\nMinimum 5 years experience in data modelling and DWH processes\nVery good SQL knowledge\nPractical experience working with data warehouses\nExperience building or developing DWH solutions\nExperience designing data models\nSource-to-target data mapping\nUnderstanding of ETL and data processing\nExperience analysing data from multiple source systems\nAbility to prepare and validate SQL queries\nExperience working with developers on DWH implementations\nStrong analytical skills\nFluent Polish\nEnglish minimum B2\n\nNice to have \n\nBanking or financial services experience\nMicrosoft Azure\nDatabricks\nExperience with complex enterprise data environments\nHigher education in IT or a related field\nBenefits\nFlexible hybrid work model (1 day/week on-site in Warsaw/Gdańsk/Wrocław)\nSolid, competitive salary\nWork in a multinational environment on international projects\nComprehensive healthcare\nLong-term B2B contract with a stable project 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