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Offer summary
(Summary generated by AI based on the full job description)
The project focuses on banking systems handling credit and financial data. Technologies include Python and SQL with relational databases; optional technologies include Kafka and Power BI. Responsibilities cover designing and maintaining data models, defining mappings and integrations across systems, ensuring data quality, consistency and auditability, and collaborating with stakeholders, architects and development teams. Additional tasks include preparing documentation, supporting implementation and testing, and optimising processes using AI-assisted tools. The offer includes remote work and integration events.
Senior Data Modeller (Python)
Company: OPTIVEUM SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ
from: 12 October 2026
to: 11 November 2026
140 - 140 złnet (+ VAT)/ hr.B2B contract (full-time)
Offer parameters
level:senior
working mode:hybrid
location:Warszawa, Masovian
Warszawa, Masovian
Requirements
Expected technologies
SQL
Python
Optional technologies
Kafka
Microsoft Power BI
Java
Our requirements
- Extensive experience in data modelling and solution design
- Strong SQL skills and hands-on experience with relational databases
- Good programming skills in Python
- Experience with data integration, transformation and data mapping across multiple systems
- Understanding of APIs, system integrations and process modelling
- Experience ensuring data quality, consistency and governance standards
- Strong analytical and problem-solving skills
- Experience working directly with business stakeholders and translating their requirements into technical solutions
- Fluent English, both written and spoken
Optional
- Knowledge of Kafka
- Experience with Power BI
- Familiarity with Java development
- Understanding of data warehouse concepts and architecture
- Experience using AI tools for documentation, testing, data analysis or development support
- Experience in banking, finance or regulatory reporting environments
- Knowledge of credit risk, rating or financial statement data domains
Your responsibilities
- Design and maintain data models supporting credit and financial data processes
- Analyse business requirements and translate them into scalable technical solutions
- Define and manage data mappings between multiple systems to ensure accurate data integration and transformation
- Ensure data quality, consistency, traceability and auditability across the solution landscape
- Collaborate with business stakeholders, architects and development teams on end-to-end solution design
- Prepare and maintain technical documentation and functional specifications
- Support process optimisation and automation using AI-assisted tools
- Take part in solution implementation, testing and continuous improvement
About the project
We are currently looking for a Senior Data Modeller (Python) to join the team of our client from the banking industry. For this role, Optiveum is the recruitment and contracting party, which means you will sign the cooperation agreement directly with us.
You will design and maintain the data models behind the client's credit and financial data processes, translating business requirements into scalable solutions and making sure data flows accurately between systems.
Benefits
- remote work opportunities
- integration events
OPTIVEUM SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ
Optiveum is acting as a sourcing partner for this role. You will be signing a cooperation agreement directly with our partner—a renowned IT contracting company with nearly 20 years of presence on the market.
The end client operates in the international public, defense, or government administration sector, leading large-scale, multi-million euro digital transformation projects.
This is how we work
Senior Data Modeller (Python)
140–140 zł / hr. (B2B)
I apply to:
OPTIVEUM SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ
Warszawa, Masovian
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