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Senior Data Engineer

  • Hybrid
    • Bratislava, Slovakia
  • €3,200 per month

Job description

We are looking for a Senior Data Engineer to strengthen our data team in the financial services industry. You'll take ownership of end-to-end data solutions on Azure and Databricks, shape how we model and govern data across Bolder Group, and act as a technical reference point for less experienced colleagues.

This role suits a professional who works independently, gives shape to ideas and concepts, and takes care of the implementation and improvement of data sources — with only sporadic feedback needed.

What you'll do

  • Own data pipelines end-to-end – Design, build, and maintain robust ETL/ELT pipelines to ingest, clean, transform, and load data from various sources into Azure data stores and Databricks clusters using Python, SQL, and PySpark.

  • Design data models & the Enterprise Dimensional Model – Build models that support a single source of truth and are optimized for Power BI and downstream analytics.

  • Architect data solutions on Azure – Translate business requirements into scalable solutions using Azure Data Factory, Databricks, Data Lake Storage, SQL Database, and Logic Apps.

  • Data management & governance – Champion data quality practices, master/reference data, data catalogue, and data publishing; help implement governance and security controls across Bolder's data platform.

  • Performance & cost optimization – Continuously monitor and improve pipeline performance, reliability, and cost-effectiveness.

  • Coach & mentor – Guide junior data engineers, review their work, and share knowledge across the team.

  • Innovation – Identify improvement opportunities, contribute to setting them up, and drive their implementation.

Job requirements

What you bring

  • Minimum 5 years of professional experience in data engineering, ideally including cloud-based projects.

  • Azure services – strong hands-on experience with Azure Data Factory, Azure Databricks, Data Lake Storage, Azure SQL Database, and Logic Apps; able to design end-to-end architectures.

  • Databricks & Data Lake – solid experience with the Lakehouse concept, Delta Lake, and performance tuning.

  • Data modelling – strong grasp of dimensional modelling, Medallion architecture, and building models for BI consumption.

  • Programming – advanced Python, SQL, and PySpark; comfortable with version control (Git)

  • CI/CD – Solid grasp of CI/CD principles with hands-on experience

  • Data governance – experience implementing data quality, lineage, and cataloguing practices (e.g., Unity Catalog).

  • English – confident written and verbal communication with technical and business stakeholders.

  • Mindset – ownership-driven, structured, and comfortable coaching others.

  • Familiarity with APIs and integration with market data providers

 Nice to have

  • Exposure to Machine Learning workflows (a plus, not a requirement)

  • AI curiosity – Keen interest in AI and eager to explore its role in data engineering

What we offer

At Bolder, you'll always find:

  • Fair financial compensation based on your qualifications and experience

  • Opportunity to shape how data engineering evolves at Bolder Group

  • An environment that supports personal growth and healthy work-life balance

  • Development opportunities across Bolder Group and affiliated companies

Benefits:

  • Guaranteed 13th salary

  • 2 sick days per year

  • Sick leave support

  • Fully covered meal vouchers

  • Multisport card or cash allowance for sports and cultural activities

  • Monthly travel allowance

  • Fruits and beverages in the office daily

  • Team activities and events

Salary: The minimum offer for this role is €3,200 gross/month/full-time. We aim to pay our employees fairly, so your salary might be higher, reflecting your experience and skill set.

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