Infocomm TechnologyInformation and communications technology professionalsISCO 2521
data warehouse designer
Data warehouse designers are responsible for planning, connecting, designing, scheduling, and deploying data warehouse systems. They develop, monitor and maintain ETL processes, reporting applications and data warehouse design.
About data warehouse designer
As a data warehouse designer, you will architect and implement the sophisticated systems that transform raw data into actionable business intelligence. Your work involves planning database structures, designing efficient schemas, and creating robust ETL (Extract, Transform, Load) processes that move data from source systems into centralized repositories. You will develop and maintain reporting applications that empower business users to analyze trends and make data-driven decisions, while ensuring data integrity and security at every step. As a data warehouse designer, you combine deep technical knowledge of databases and programming with business acumen, understanding both what data matters and how to structure it for maximum utility. You will work with large-scale systems, managing complex queries and optimizing performance for millions of records. Poland's digital transformation across finance, retail, and manufacturing sectors creates strong demand for data warehouse specialists who can deliver enterprise-grade solutions.
Key Work Functions
Core areas of responsibility for a data warehouse designer.
1
Database Architecture and Design
- Design comprehensive database schemes that organize data efficiently for analysis and reporting
- Plan information structure and data relationships to support business requirements and scalability
- Apply database development tools and relational database management systems effectively
2
ETL Process Development and Management
- Develop, monitor, and maintain ETL processes that extract, transform, and load data from multiple sources
- Create automated migration methods for transferring and consolidating data from legacy systems
- Migrate existing data into new warehouse systems while maintaining data quality and completeness
3
Data Modeling and Integration
- Use markup languages and resource description framework query language for data modeling and integration
- Apply business process modelling to understand data requirements and design appropriate solutions
- Ensure consistency and standardization across all data sources integrated into the warehouse
4
Database Management and Performance Optimization
- Operate and optimize relational database management systems for maximum query performance
- Manage databases including backup, recovery, and maintenance of data integrity
- Monitor and tune database performance, addressing bottlenecks and optimizing indexes
5
Reporting and Documentation
- Develop reporting applications that provide clear, actionable insights for business stakeholders
- Write comprehensive database documentation including schemas, data dictionaries, and technical specifications
- Design custom data solutions and create software design documentation for enterprise applications
6
Security and Systems Management
- Apply ICT security legislation and establish data protection protocols for warehouse systems
- Apply systems theory to design scalable, maintainable architectures for growing data volumes
- Assess ICT knowledge requirements and ensure team possesses necessary technical competencies
European Skills Framework
Skills and knowledge areas required for this occupation based on European classification.
Essential (27)
information structureinformation structureThe type of infrastructure which defines the format of data: semi-structured, unstructured and structured.data warehousedata warehouseThe data storage system that analyses and reports on data such as a data mart.databasedatabaseThe classification of databases, that includes their purpose, characteristics, terminology, models and use such as XML databases, document-oriented databases and full text databases.web programmingweb programmingThe programming paradigm that is based on combining markup (which adds context and structure to text) and other web programming code, such as AJAX, javascript and PHP, in order to carry out appropriat...ICT security legislationICT security legislationThe set of legislative rules that safeguards information technology, ICT networks and computer systems and legal consequences which result from their misuse. Regulated measures include firewalls, intr...business process modellingbusiness process modellingThe tools, methods and notations such as Business Process Model and Notation (BPMN) and Business Process Execution Language (BPEL), used to describe and analyse the characteristics of a business proce...resource description framework query languageresource description framework query languageThe query languages such as SPARQL which are used to retrieve and manipulate data stored in Resource Description Framework format (RDF).database development toolsdatabase development toolsThe methodologies and tools used for creating logical and physical structure of databases, such as logical data structures, diagrams, modelling methodologies and entity-relationships.database management systemsdatabase management systemsThe tools for creating, updating and managing databases, such as Oracle, MySQL and Microsoft SQL Server.systems theorysystems theoryThe principles that can be applied to all types of systems at all hierarchical levels, which describe the system's internal organisation, its mechanisms of maintaining identity and stability and achie...migrate existing datamigrate existing dataApply migration and conversion methods for existing data, in order to transfer or convert data between formats, storage or computer systems.use markup languagesuse markup languagesUtilise computer languages that are syntactically distinguishable from the text, to add annotations to a document, specify layout and process types of documents such as HTML.develop automated migration methodsdevelop automated migration methodsCreate automated transfer of ICT information between storage types, formats and systems to save human resources from performing the task manually.assess ICT knowledgeassess ICT knowledgeEvaluate the implicit mastery of skilled experts in an ICT system to make it explicit for further analysis and usage.manage databasemanage databaseApply database design schemes and models, define data dependencies, use query languages and database management systems (DBMS) to develop and manage databases.create software designcreate software designTranspose a series of requirements into a clear and organised software design.use databasesuse databasesUse software tools for managing and organising data in a structured environment which consists of attributes, tables and relationships in order to query and modify the stored data.write database documentationwrite database documentationDevelop documentation containing information about the database that is relevant to end users.design database schemedesign database schemeDraft a database scheme by following the Relational Database Management System (RDBMS) rules in order to create a logically arranged group of objects such as tables, columns and processes.operate relational database management systemoperate relational database management systemExtract, store and verify information using database management systems based on the relational database model, which arranges data into tables of rows and columns, such as Oracle Database, Microsoft ...identify software for warehouse managementidentify software for warehouse managementIdentify relevant software and applications used for warehouse management systems, their characteristics and value added to warehouse management operations.create database diagramscreate database diagramsDevelop the database design models and diagrams which establish the structure of a database by using modelling software tools to be implemented in further processes.create data setscreate data setsGenerate a collection of new or existing related data sets that are made up out of separate elements but can be manipulated as one unit.analyse business requirementsanalyse business requirementsStudy clients' needs and expectations for a product or service in order to identify and resolve inconsistencies and possible disagreements of involved stakeholders.manage standards for data exchangemanage standards for data exchangeSet and maintain standards for transforming data from source schemas into the necessary data structure of a result schema.apply ICT systems theoryapply ICT systems theoryImplement principles of ICT systems theory in order to explain and document system characteristics that can be applied universally to other systems.define technical requirementsdefine technical requirementsSpecify technical properties of goods, materials, methods, processes, services, systems, software and functionalities by identifying and responding to the particular needs that are to be satisfied acc...
Optional (81)
HaskellHaskellThe techniques and principles of software development, such as analysis, algorithms, coding, testing and compiling of programming paradigms in Haskell.SAS languageSAS languageThe techniques and principles of software development, such as analysis, algorithms, coding, testing and compiling of programming paradigms in SAS language.Agile project managementAgile project managementThe agile project management approach is a methodology for planning, managing and overseeing of ICT resources in order to meet specific goals and using project management ICT tools.Ruby (computer programming)Ruby (computer programming)The techniques and principles of software development, such as analysis, algorithms, coding, testing and compiling of programming paradigms in Ruby.Common LispCommon LispThe techniques and principles of software development, such as analysis, algorithms, coding, testing and compiling of programming paradigms in Common Lisp.LispLispThe techniques and principles of software development, such as analysis, algorithms, coding, testing and compiling of programming paradigms in Lisp.Visual BasicVisual BasicThe techniques and principles of software development, such as analysis, algorithms, coding, testing and compiling of programming paradigms in Visual Basic.Java (computer programming)Java (computer programming)The techniques and principles of software development, such as analysis, algorithms, coding, testing and compiling of programming paradigms in Java.computer programmingcomputer programmingThe techniques and principles of software development, such as analysis, algorithms, coding, testing and compiling of programming paradigms (e.g. object oriented programming, functional programming) a...Prolog (computer programming)Prolog (computer programming)The techniques and principles of software development, such as analysis, algorithms, coding, testing and compiling of programming paradigms in Prolog.OpenEdge Advanced Business LanguageOpenEdge Advanced Business LanguageThe techniques and principles of software development, such as analysis, algorithms, coding, testing and compiling of programming paradigms in OpenEdge Advanced Business Language.JavaScriptJavaScriptThe techniques and principles of software development, such as analysis, algorithms, coding, testing and compiling of programming paradigms in JavaScript.DB2DB2The computer program IBM DB2 is a tool for creating, updating and managing databases, developed by the software company IBM.Microsoft AccessMicrosoft AccessThe computer program Access is a tool for creating, updating and managing databases, developed by the software company Microsoft.XQueryXQueryThe computer language XQuery is a query language for retrieval of information from a database and of documents containing the needed information. It is developed by the international standards organis...PerlPerlThe techniques and principles of software development, such as analysis, algorithms, coding, testing and compiling of programming paradigms in Perl.Smalltalk (computer programming)Smalltalk (computer programming)The techniques and principles of software development, such as analysis, algorithms, coding, testing and compiling of programming paradigms in Smalltalk.PHPPHPThe techniques and principles of software development, such as analysis, algorithms, coding, testing and compiling of programming paradigms in PHP.OpenEdge DatabaseOpenEdge DatabaseThe computer program OpenEdge Database is a tool for creating, updating and managing databases, developed by the software company Progress Software Corporation.ObjectStoreObjectStoreThe computer program ObjectStore is a tool for creating, updating and managing databases, developed by the software company Object Design, Incorporated.C#C#The techniques and principles of software development, such as analysis, algorithms, coding, testing and compiling of programming paradigms in C#.MySQLMySQLThe computer program MySQL is a tool for creating, updating and managing databases, currently developed by the software company Oracle.TripleStoreTripleStoreThe RDF store or TripleStore is a database used for storage and retrieval of Resource Description Framework triples (subject-predicate-object data entities) which can be accessed by semantic queries.RRThe techniques and principles of software development, such as analysis, algorithms, coding, testing and compiling of programming paradigms in R.GroovyGroovyThe techniques and principles of software development, such as analysis, algorithms, coding, testing and compiling of programming paradigms in Groovy.ASP.NETASP.NETThe techniques and principles of software development, such as analysis, algorithms, coding, testing and compiling of programming paradigms in ASP.NET.APLAPLThe techniques and principles of software development, such as analysis, algorithms, coding, testing and compiling of programming paradigms in APL.SPARQLSPARQLThe computer language SPARQL is a query language for retrieval of information from a database and of documents containing the needed information. It is developed by the international standards organis...data visualisation softwaredata visualisation softwareA computer tool or application that creates a graphical and visual representation of data, allowing a better understanding and interpretation of complex data through visual elements such as maps, char...Microsoft Visual C++Microsoft Visual C++The computer program Visual C++ is a suite of software development tools for writing programs, such as compiler, debugger, code editor, code highlights, packaged in a unified user interface. It is dev...IBM InformixIBM InformixThe computer program IBM Informix is a tool for creating, updating and managing databases, developed by the software company IBM.TypeScriptTypeScriptThe techniques and principles of software development, such as analysis, algorithms, coding, testing and compiling of programming paradigms in TypeScript.CoffeeScriptCoffeeScriptThe techniques and principles of software development, such as analysis, algorithms, coding, testing and compiling of programming paradigms in CoffeeScript.Objective-CObjective-CThe techniques and principles of software development, such as analysis, algorithms, coding, testing and compiling of programming paradigms in Objective-C.ML (computer programming)ML (computer programming)The techniques and principles of software development, such as analysis, algorithms, coding, testing and compiling of programming paradigms in ML.LDAPLDAPThe computer language LDAP is a query language for retrieval of information from a database and of documents containing the needed information.PostgreSQLPostgreSQLThe computer program PostgreSQL is a free and open-source software tool for creating, updating and managing databases, developed by the PostgreSQL Global Development Group.AJAXAJAXThe techniques and principles of software development, such as analysis, algorithms, coding, testing and compiling of programming paradigms in AJAX.C++C++The techniques and principles of software development, such as analysis, algorithms, coding, testing and compiling of programming paradigms in C++.Filemaker (database management systems)Filemaker (database management systems)The computer program FileMaker is a tool for creating, updating and managing databases, developed by the software company FileMaker Inc.SAP R3SAP R3The techniques and principles of software development, such as analysis, algorithms, coding, testing and compiling of programming paradigms in SAP R3.ICT project management methodologiesICT project management methodologiesThe methodologies or models for planning, managing and overseeing of ICT resources in order to meet specific goals, such methodologies are Waterfall, Incremental, V-Model, Scrum or Agile and using pro...SQL ServerSQL ServerThe computer program SQL Server is a tool for creating, updating and managing databases, developed by the software company Microsoft.MATLABMATLABThe techniques and principles of software development, such as analysis, algorithms, coding, testing and compiling of programming paradigms in MATLAB.unstructured dataunstructured dataThe information that is not arranged in a pre-defined manner or does not have a pre-defined data model and is difficult to understand and find patterns in without using techniques such as data mining.CA Datacom/DBCA Datacom/DBThe computer program CA Datacom/DB is a tool for creating, updating and managing databases, currently developed by the software company CA Technologies.LINQLINQThe computer language LINQ is a query language for retrieval of information from a database and of documents containing the needed information. It is developed by the software company Microsoft.Python (computer programming)Python (computer programming)The techniques and principles of software development, such as analysis, algorithms, coding, testing and compiling of programming paradigms in Python.Scratch (computer programming)Scratch (computer programming)The techniques and principles of software development, such as analysis, algorithms, coding, testing and compiling of programming paradigms in Scratch.Process-based managementProcess-based managementThe process-based management approach is a methodology for planning, managing and overseeing of ICT resources in order to meet specific goals and using project management ICT tools.Teradata DatabaseTeradata DatabaseThe computer program Teradata Database is a tool for creating, updating and managing databases, developed by the software company Teradata Corporation.lean project managementlean project managementThe lean project management approach is a methodology for planning, managing and overseeing of ICT resources in order to meet specific goals and using project management ICT tools.VBScriptVBScriptThe techniques and principles of software development, such as analysis, algorithms, coding, testing and compiling of programming paradigms in VBScript.Oracle Relational DatabaseOracle Relational DatabaseThe computer program Oracle Rdb is a tool for creating, updating and managing databases, developed by the software company Oracle.COBOLCOBOLThe techniques and principles of software development, such as analysis, algorithms, coding, testing and compiling of programming paradigms in COBOL.product data managementproduct data managementThe use of software to track all information concerning a product such as technical specifications, drawings, design specifications, and production costs.MarkLogicMarkLogicThe NoSQL enterprise non-relational database used for creating, updating and managing large amounts of unstructured data stored in the cloud and which provides features such as semantics, flexible dat...Pascal (computer programming)Pascal (computer programming)The techniques and principles of software development, such as analysis, algorithms, coding, testing and compiling of programming paradigms in Pascal.ABAPABAPThe techniques and principles of software development, such as analysis, algorithms, coding, testing and compiling of programming paradigms in ABAP.data sciencedata scienceThe field of study that deals with big amount of data using AI techniques such as machine learning algorithms to predict patterns and obtain useful information to make business decisions.N1QLN1QLThe computer language N1QL is a query language for retrieval of information from a database and of documents containing the needed information. It is developed by the software company Couchbase.data modelsdata modelsThe techniques and existing systems used for structuring data elements and showing relationships between them, as well as methods for interpreting the data structures and relationships.ScalaScalaThe techniques and principles of software development, such as analysis, algorithms, coding, testing and compiling of programming paradigms in Scala.perform data analysisperform data analysisCollect data and statistics to test and evaluate in order to generate assertions and pattern predictions, with the aim of discovering useful information in a decision-making process.use access control softwareuse access control softwareUtilise software to define the roles and manage user authentication, privileges and access rights to ICT systems, data and services.store digital data and systemsstore digital data and systemsUse software tools to archive data by copying and backing them up, in order to ensure their integrity and to prevent data loss.use query languagesuse query languagesRetrieve information from a database or information system using computer languages designed for the retrieval of data.design database in the clouddesign database in the cloudApply design principles for an adaptive, elastic, automated, loosely coupled databases making use of cloud infrastructure. Aim to remove any single point of failure through distributed database design...use back-up and recovery toolsuse back-up and recovery toolsUse tools which allow users to copy and archive computer software, configurations and data and recover them in case of loss.develop reporting softwaredevelop reporting softwareCreate reporting software and applications used for creating reports on data.design database backup specificationsdesign database backup specificationsSpecify procedures to be performed on databases which ensure the copying and archiving of data for possible restoration in case of a data loss event.apply technical communication skillsapply technical communication skillsExplain technical details to non-technical customers, stakeholders, or any other interested parties in a clear and concise manner.respond to customers' inquiriesrespond to customers' inquiriesAnswer customers' questions about itineraries, rates and reservations in person, by mail, by e-mail and on the phone.manage cloud data and storagemanage cloud data and storageCreate and manage cloud data retention. Identify and implement data protection, encryption, and capacity planning needs.build business relationshipsbuild business relationshipsEstablish a positive, long-term relationship between organisations and interested third parties such as suppliers, distributors, shareholders and other stakeholders in order to inform them of the orga...perform resource planningperform resource planningEstimate the expected input in terms of time, human and financial resources necessary to achieve the project objectives.design user interfacedesign user interfaceCreate software or device components which enable interaction between humans and systems or machines, using appropriate techniques, languages and tools so as to streamline interaction while using the ...Assembly (computer programming)Assembly (computer programming)The techniques and principles of software development, such as analysis, algorithms, coding, testing and compiling of programming paradigms in Assembly.define database physical structuredefine database physical structureSpecify the physical configuration of database files on a given media. This consists of in-detail specifications of indexing options, data types and data elements placed in the data dictionary.ErlangErlangThe techniques and principles of software development, such as analysis, algorithms, coding, testing and compiling of programming paradigms in Erlang.Swift (computer programming)Swift (computer programming)The techniques and principles of software development, such as analysis, algorithms, coding, testing and compiling of programming paradigms in Swift.
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