Senior Data Engineer

Salary: 1100 - 1550 PLN/MD on B2B

Work model: elastic hybrid from Warsaw / Kraków / Gdańsk

Why choose this offer?

• Work on modern cloud security architecture for large-scale financial data platforms in the capital markets domain

• Opportunity to shape security-by-design practices in a highly regulated, data-driven environment

• Join an international organization processing high volumes of transactional data, supporting advanced analytics and trading platforms

• The Jit community will bring you a nice time during regular integration meetings

• Enjoy work-life balance in a company that values flexibility and innovation

Project

We are looking for a Senior Data Engineer to own and stabilise a Snowflake-based data platform. You will develop and maintain data pipelines using AWS, Snowflake, dbt, SQL and Python, ensuring data quality, security and reliability while supporting business and regulatory reporting.

Expected competences and knowledge

• 8+ years of hands-on data engineering experience

• Strong production experience with Snowflake and dbt

• Advanced SQL and Python skills

• Experience with AWS (S3, Lambda/ECS, IAM, data replication)

• Strong data modelling and ETL/ELT pipeline development skills

• Experience with Power BI, DAX and semantic models

• Knowledge of data governance, data quality monitoring and PII security

• Experience in financial services, trading or fintech

• Fluent, professional English (written and spoken)

Responsibilities you'll have

• Own and maintain the data platform end to end.

• Develop and optimise ETL/ELT pipelines using AWS, Snowflake, dbt, SQL and Python.

• Implement data models and support Power BI reporting.

• Monitor data quality, pipeline performance and platform costs.

• Ensure data security, governance and PII protection.

• Collaborate with Finance, Risk and other business teams on data requirements.

Technologies you'll work with

• Snowflake

• dbt

• SQL

• Python

• AWS S3

• AWS ECS/Fargate

• AWS Lambda

• AWS IAM

• Power BI

• DAX

• ETL/ELT

• CI/CD

• Data Modelling

• Data Governance

Client – why choose this particular client from the Jit portfolio?

Our client is an international financial services organization operating in the capital markets domain, focused on processing and analyzing large volumes of transactional data. The company develops modern data platforms that support trading, operational efficiency, and regulatory reporting. It operates in a fast-paced, highly regulated environment with a strong emphasis on scalability, data quality, and advanced analytics.

About Jit Team

The Human Factor of IT - it’s not just a slogan, it’s a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 770 experienced experts, to whom we offer developmental projects, a wide range of benefits, and a proprietary professional development programme. Together with clients from around the world, we create innovative IT solutions delivered by highly specialised and efficient teams.

Behind our maxim are also charitable and educational activities. We support schools, universities, and educational institutions by conducting workshops, running educational projects, sponsoring events, and donating learning equipment. We offer internships that help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We also support numerous charitable organisations helping people in need, children, and the elderly. We are a Polish company and we share what we have achieved over more than 15 years of activity. By supporting local initiatives, we contribute to the circulation of good energy.