Data Engineer

Rate: 89 – 119 PLN/hour (B2B)

We are looking for an experienced Data Engineer to join Flix on a f reelance/service agreement basis (B2B contract).

Scope of Services

As a Data Engineer at Flix, you can make an impact by building the data pipelines and products that power marketing budget decisions for one of Europe's fastest-growing mobility platforms and contributing to team’s expansion into marketing attribution.

About the Engagement

• Use Python, SQL, and Airflow to develop reliable data pipelines that empower marketing stakeholders with timely, actionable data

• Be a good judge of when to delegate to AI, when to trust, and when to meticulously review AI-generated work

• Ensure data quality through validation, monitoring, and clear documentation

• Participate in code reviews and contribute to engineering best practices within the team

• Collaborate with the Product Owner and team to understand marketing stakeholders' data needs and translate them into technical solutions

• Contribute to the design, optimization, and continuous improvement of scalable data pipelines and infrastructure

• Understand data products deeply enough to independently investigate data questions, spot anomalies, and explain what the numbers mean to non-technical stakeholders

About You

• 2–4 years of hands-on experience in data engineering

• Degree in Computer Science or a related field - candidates from Business or Marketing backgrounds with technical exposure are also welcome

• Solid experience with Python, CI/CD, Terraform, SQL, relational databases, and Git

• Familiar with ETL orchestration tools such as Airflow

• Naturally curious - comfortable digging into data independently to find the root cause, framing questions about data and developing deep domain expertise over time

• Communicates well and works effectively with both technical and non-technical stakeholders; fluent in English

• Preferred: experience with AWS, Docker, Kubernetes, or foundational marketing knowledge

Cooperation model

• Cooperation based on a service agreement (B2B/freelance contract), not an employment contract

• You will operate as an independent contractor, responsible for delivering agreed services and submitting invoices

• Location : open for contractors based in Poland