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Big Data Engineer with Spark (f/m/x)
  • Warsaw
Big Data Engineer with Spark (f/m/x)
Warszawa, Warsaw, Masovian Voivodeship, Polska
Sii Sp. z o.o.
9. 2. 2026
Informacje o stanowisku

technologies-expected :


  • Apache Spark
  • SQL
  • Java
  • Scala
  • Python
  • Git

technologies-optional :


  • Scala
  • Java

about-project :


  • Join our data engineering team, responsible for creating and evolving a next-generation data platform. This platform plays a key role in supporting a variety of business functions and engaging with multiple stakeholders across the organization.

responsibilities :


  • Design, develop, and maintain scalable data pipelines and processing systems
  • Build efficient solutions for collecting, transforming, and integrating data from diverse sources
  • Translate business and analytical needs into technical requirements and data models
  • Optimize data workflows to ensure high performance, reliability, and resilience
  • Develop and maintain Spark/Scala-based jobs for data ingestion and transformation
  • Participate in code reviews and contribute to continuous improvement initiatives
  • Work collaboratively within an Agile (Scrum) environment, delivering business value in short iterations
  • Follow best engineering practices such as TDD, BDD, clean coding, and DevOps principles
  • Create and maintain technical documentation and test plans

requirements-expected :


  • Min. 5 years of professional experience in Big Data engineering, preferably in the banking or financial services sector
  • Knowledge of Spark, SQL, and Java or Scala
  • Working knowledge of additional tools and technologies such as Python, Java, Airflow, DevOps, CI/CD pipelines, APIs, microservices, and Git
  • Excellent analytical and troubleshooting skills
  • Strong communication and teamwork abilities
  • Proactive, self-driven approach to work
  • Ability to collaborate effectively with international teams across different time zones
  • Solid organizational and prioritization skills
  • Fluency in English and Polish, both spoken and written
  • Open to a hybrid work model (2-3 days per week on-site)
  • Residing in Poland required

offered :


  • Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas
  • Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market
  • We share the profit with Workers - over PLN 76M has already been allocated for this aim since 2022
  • Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more
  • Comfortable workplace – class A offices or remote work
  • Dozens of fascinating projects for prestigious brands from all over the world – you can change them thanks to Job Changer application
  • PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers
  • Investment in your growth – meetups, webinars, training platform and technology blog – you choose
  • Fantastic atmosphere created by all Sii Power People

  • Praca Warszawa
  • Warszawa - Oferty pracy w okolicznych lokalizacjach


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