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Development of a new product lifecycle management system
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Ingenico Axis Roadmap Team
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Software for real-time DNA image analysis
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Improvement of test automation by DMI Robot
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Sii Poland is the largest IT services provider in Poland according to the ITwiz Best100 report for 2023

Sii Poland is the largest IT services provider in Poland according to the ITwiz Best100 report for 2023
Get ready for the Get Digital Summit 2024! Register now and take your technology knowledge to the next level.

Get ready for the Get Digital Summit 2024! Register now and take your technology knowledge to the next level.
Digital Health and Care and Regulatory Affairs. Learn how to effectively connect health and business for the benefit of patients

Digital Health and Care and Regulatory Affairs. Learn how to effectively connect health and business for the benefit of patients
The closer we are to those in need, the more we want to help – discover how Michał, Test and Analysis Engineer at Sii, used his problem-solving skills to help effectively 

The closer we are to those in need, the more we want to help – discover how Michał, Test and Analysis Engineer at Sii, used his problem-solving skills to help effectively 
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Performance Engineering Meetup
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Design your IoT device with cybersecurity in mind. Regulations, challenges, solutions
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Get Digital Summit
How to achieve business agility? SAFe success patterns and real-world case studies 

How to achieve business agility? SAFe success patterns and real-world case studies 
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What did the internship at Sii's Engineering Competency Center give me?

What did the internship at Sii's Engineering Competency Center give me?
SAP MM – basic configuration process and new organization units within existing organization

SAP MM – basic configuration process and new organization units within existing organization
Adobe Edge Delivery Services – easy creation of ultra-fast pages

Adobe Edge Delivery Services – easy creation of ultra-fast pages
Using structures as composite keys in C# dictionaries

Using structures as composite keys in C# dictionaries
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Senior Power BI Developer

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  • Hybrid, 
  • Office
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Country
Poland
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Bialystok Bydgoszcz Cracow Czestochowa Gdansk Gliwice Katowice Kielce Lodz Lublin Pila Poznan Rzeszow Szczecin Torun Warsaw Wroclaw
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This offer base language is Polish. Translate into English.

Technologies & tools

Must have
Power BI SQL ETL DAX Microsoft Azure Power Query DWH data modelling Microsoft SQL Server
Nice to have
Python SSIS SSRS SSAS tabular OLAP

Do you want to develop your competence in Microsoft solutions? Join our specialized unit of data analytics and visualization experts within the Data & Analytics Competence Center. We implement and develop data warehouses, reporting systems, self-service BI tools, and offer career path development in the areas of Data Science and Machine Learning.

Your tasks

  • Design, develop and implement interactive and visually appealing reports and dashboards in Power BI
  • Using DAX for complex calculations and data modeling
  • Ensuring data accuracy and consistency
  • Developing and managing the backend architecture for Power BI (data sourcing, ETL processes, data warehouses)
  • Writing and optimizing SQL queries and scripts for data integration and retrieval
  • Designing and implementing efficient data models
  • Work with stakeholders to gather requirements and translate them into technical specifications
  • Conducting training sessions and providing end-user support on Power BI functionality

Requirements

  • Minimum of 5 years of experience in creating and developing reports and dashboards in Power BI, as well as data management and modeling
  • Experience in optimizing the performance of both DAX queries and data models in Power BI
  • Proficiency in SQL and experience working with relational databases such as SQL Server, Oracle or MySQL
  • Familiarity with data warehousing concepts and best practices
  • Experience integrating Power BI with cloud services such as Azure
  • Ability to analyze business requirements and translate them into technical solutions and visualizations
  • Fluent communication skills in Polish and English

Nice to have

  • Familiarity with Microsoft Azure for data storage, integration and management

Job no. 241028-KI5RL

Technologie i narzędzia

Wymagane
Power BI SQL ETL DAX Microsoft Azure Power Query DWH data modelling Microsoft SQL Server
Mile widziane
Python SSIS SSRS SSAS tabular OLAP

Chcesz rozwijać swoje kompetencje w rozwiązaniach Microsoft? Dołącz do naszej wyspecjalizowanej jednostki skupiającej ekspertów z dziedziny analizy i wizualizacji danych w ramach Centrum Kompetencyjnego Data & Analytics. Wdrażamy i rozwijamy hurtownie danych, systemy raportowania, samoobsługowe narzędzia BI, a także oferujemy rozwój ścieżki kariery w obszarach Data Science i Machine Learning.

Twoje zadania

  • Projektowanie, opracowywanie i wdrażanie interaktywnych i atrakcyjnych wizualnie raportów i dashboardów w Power BI
  • Wykorzystywanie DAX do złożonych obliczeń i modelowania danych
  • Zapewnianie dokładności i spójności danych
  • Rozwijanie i zarządzanie architekturą backendową dla Power BI (data sourcing, procesy ETL, hurtownie danych)
  • Pisanie i optymalizacja zapytań SQL i skryptów w celu integracji i pobierania danych
  • Projektowanie i wdrażanie wydajnych modeli danych
  • Współpraca z interesariuszami w celu zebrania wymagań i przełożenia ich na specyfikacje techniczne
  • Prowadzenie sesji szkoleniowych i zapewnianie wsparcia użytkownikom końcowym w zakresie funkcjonalności Power BI

Wymagania

  • Minimum 5 lat doświadczenia w tworzeniu i rozwijaniu raportów i dashboardów w Power BI oraz zarządzaniu danymi i ich modelowaniu
  • Doświadczenie w optymalizacji wydajności zarówno zapytań DAX, jak i modeli danych w Power BI
  • Biegła znajomość języka SQL i doświadczenie w pracy z relacyjnymi bazami danych takimi jak SQL Server, Oracle lub MySQL
  • Znajomość koncepcji i najlepszych praktyk w zakresie hurtowni danych
  • Doświadczenie w integracji Power BI z usługami chmurowymi takimi jak Azure
  • Umiejętność analizy wymagań biznesowych oraz ich przekładania na rozwiązania techniczne i wizualizacje
  • Swobodna komunikacja w języku polskim i angielskim

Mile widziane

  • Znajomość Microsoft Azure w zakresie przechowywania, integracji i zarządzania danymi

Nr oferty 241028-KI5RL

Quick apply

Senior Power BI Developer

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Benefits for you

Great Place to Work
Solid financial situations
Contracts with the biggest brands
Centre of internal trainings
Many experts you can learn from
Open and accessible management team
Profit sharing
Passion Sponsorship program
Regular integration events and trips
Comfortable and well-equipped offices
MySii app
Medical care
All our benefits
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Great Place to Work

Since 2015, we have been recognized with the Great Place to Work title every year, a prestigious award based on employees feedback. According to the study, over 90% of people working at Sii consider it a fantastic place to work.

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Solid financial situations

We began as a one-person start-up in 2006 and grew into a 7 500+ workers company in 2024, generating revenue of EUR 480M, having no debts, and being recognized as the leading IT services provider in Poland by the Computerworld TOP200 report. Check out more facts that prove our market strength.  

Read more

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Contracts with the biggest brands

We are a key partner for many prestigious global companies from different sectors i.a: BNP Paribas, KUKA, ING or Bombardier with whom we have contracts that guarantee continuity of employment for our workers.  

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Centre of internal trainings

Our own training center organized around 300 technical and soft skills training courses last year. More than 3 300 people took part and rating them at 4.7/5. Trainings are conducted by practitioners, both experts from Sii and outside the company. Our employees can also request for individual external courses. 

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Many experts you can learn from

At Sii we have a lot of knowledge sharing initiatives – our workers can join technology Communities, participate in a mentoring program or benefit from in-house trainings, blog and e-learning platforms.

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Open and accessible management team

No matter our title, we address each other by first names. Transparency and dialogue are important for us, that’s why we periodically organize local CEO meetups, online CEO live sessions and departmental Inspiration Days. During them everyone has the opportunity to meet with people managing the company, ask questions, report problems and discuss troubling issues.

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Profit sharing

Sii shares its profit with employees to thank everyone for a great year and results. We know that without the huge commitment of Power People, the company’s success would not be possible. From 2022, over PLN 60 M has already been allocated for this aim. 

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Passion Sponsorship program

We allocate PLN 1M annually for the development of passions and hobbies through our Passion Sponsorship & Volunteers programs. Thanks to them, nearly half of our Power People have already realized their dreams, such as climbing Mount Everest, running in the farthest corners of the world or sending a balloon into the stratosphere.   

Learn more 

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Regular integration events and trips

Every year we organize more than 700 events, allocating for this aim bugdet exceeding PLN 15M. We take care not only for integration of our workers, but also we provide entertainment for their families within regular St. Nicholas Days, Family Picnics, Carnival Balls.   

Watch the wideo 

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Comfortable and well-equipped offices

We have A+ class offices in the centers of 14 Polish largest cities, allowing easy access for both our employees and clients, from anywhere in the country and the world.   

Project rooms, meeting rooms, modern equipment, relax and childcare area or even a slide – these are just some of the facilities we offer. 

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MySii app

Work smarter, not harder – guided by this idea we have developed an app for our employees that simplifies all administrative activities. It take just a few clicks on the phone to submit a holiday request, report on working time or track reminders for upcoming tasks.

The app is also available for candidates. You can download it for both iOS and Android. 

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Medical care

We offer private healthcare packages to our workers, with access to more than 5 000 specialists. The option also includes dental services and the possibility to add family members. 

Get to know Sii better

Watch a video about us

Get to know Sii better

Check why you should work with us

Get to know Sii better

Check out our mission

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