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Offer summary
(Summary generated by AI based on the full job description)
The project focuses on data analysis and reporting within Big Data and Data Analytics. Key technologies include SQL, Python, Google Cloud Platform (BigQuery, Data Studio) and Microsoft SQL Server. Responsibilities cover end-to-end data project delivery, building data models, KPIs, reports, and ensuring secure data transfer. Requires 3+ years of experience with advanced SQL skills and knowledge of ETL and data warehousing concepts.
from: 15 June 2026
to: 15 July 2026
135 - 200 złnet (+ VAT)/ hr.B2B contract (full-time)
Offer parameters
level:senior
working mode:hybrid
location:Kraków, Lesser Poland
Kraków, Lesser Poland
Requirements
Expected technologies
SQL
Optional technologies
Google Cloud Platform
BigQuery
Data Studio
Python
Operating system
Windows
Our requirements
- 3+ years of experience in data-related roles (SQL development, data analysis, engineering, architecture, or management).
- Expert knowledge of SQL programming and relational database systems.
- Understanding of ETL and data warehousing concepts.
- Experience in business reporting and dashboard design.
- Python knowledge is an advantage.
- Excellent verbal and written communication skills in English.
- Positive, proactive attitude with a problem-solving mindset.
Optional
- Hands-on experience with Google Cloud Platform (BigQuery, Data Studio).
- Python knowledge is an advantage.
Your responsibilities
- Deliver end-to-end data projects, including developing performance KPIs and data models from multiple data sources.
- Perform data discovery, cleaning, transformation, metrics calculation, aggregation, and validation.
- Carry out data matching and linking across datasets.
- Ensure secure data transfer from source to target systems.
- Provide advanced reporting solutions leveraging Google Cloud and/or Microsoft SQL Server.
- Develop using Python, T-SQL, and related technologies.
- Engage with stakeholders to gather requirements and clarify process logic.
- Identify opportunities for process improvements and eliminate blockers.
- Prepare documentation such as roadmaps and process descriptions.
- Facilitate project discussions and monitor progress to ensure timely delivery.
- Note: Detailed project information will be shared during the recruitment process.
About the project
Are you passionate about data and reporting, and eager to work on cutting-edge solutions in a dynamic environment? This role might be the perfect fit for you!
We are seeking a Senior Developer to become a key part of our Data & Reporting Developers Team within the Data & Architecture Office (DAO). This team is responsible for delivering top-quality data insights, building and maintaining data repositories, and ensuring alignment with organizational standards.
Our mission is to connect business processes, data, products, services, and technology, ultimately driving innovation and success across the company.
Sounds like your kind of challenge?
This is how we organize our work
This is how we work
agilescrum
This is how we work on a project
- Continuous Deployment
- Continuous Integration
Joining this project you’ll become part of Mindbox – a tech-driven company where consulting, engineering, and talent meet to build meaningful digital solutions. We’ll back you up every step of the way, accelerate your development, and ensure your skills make a difference.
What we offer
- Flexible cooperation model – choose the form that suits you best (B2B, employment contract, etc.)
- Hybrid work setup – remote days available depending on the client’s arrangements / Kraków: 3 days office + 2 days remote/week
- Collaborative team culture – work alongside experienced professionals eager to share knowledge
- Continuous development – access to training platforms and growth opportunities
- Comprehensive benefits – including Interpolska Health Care, Multisport card, Warta Insurance, and more
- High quality equipment – laptop and essential software provided
Benefits
- sharing the costs of sports activities
- private medical care
- sharing the costs of professional training & courses
- life insurance
Mindbox Sp. z o.o.
At Mindbox, we connect top IT talents with technology projects for leading enterprises across Europe.
Our focus is on matching your skills with work that matters – projects that use modern tech stacks, solve real business challenges, and give you space to grow. By joining us, you’ll deliver technology solutions for well-known brands, supported by the Mindbox team that values knowledge-sharing and continuous development. We make sure you have the tools, flexibility, and guidance to do your best work – and to keep moving forward in your career.
Data & Reporting Senior Developer
135–200 zł / hr. (B2B)
I apply to:
Mindbox Sp. z o.o.
Kraków, Lesser Poland
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