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Hadoop Big Data Developer
  • Gdańsk
Hadoop Big Data Developer
Gdańsk, Gdańsk, Pomeranian Voivodeship, Polska
Sii Sp. z o.o.
22. 10. 2025
Informacje o stanowisku

Hadoop Big Data Developer

Miejsce pracy: Gdańsk

Technologies we use

Expected

  • Java 8+
  • Scala
  • Apache Spark
  • Apache Hadoop
  • Yarn
  • Sqoop
  • Hive
  • IMPALA
  • MapReduce
  • Oozie
  • SQL
  • Oracle DB
  • Linux Shell/ Bash
  • Git
  • Jenkins
  • Bamboo
  • Ansible

Optional

  • Apache Flink
  • Apache Kafka
  • AWS
  • Microsoft Azure
  • GCP
  • Python
  • Grafana
  • Prometheus
  • ELK Stack
  • Elasticsearch
  • Logstash
  • Kibana
  • Jupyter
  • zeppelin
  • Docker
  • Kubernetes
  • Terraform
  • Anible
  • Apache Airflow
  • NiFi

About the project

We are looking for an experienced Hadoop / Big Data Developer with the potential to grow into an Expert IT Developer role. You will join the Backend Application Capability Team, which supports key initiatives within the IT/Technology cluster of a client from the banking industry. Our team provides technical expertise across Hadoop/Big Data, Oracle, SQL, and Java technologies, driving data-driven transformation and innovation across the organization.

Your responsibilities

  • Design, develop, and maintain data pipelines and applications using Hadoop and related Big Data technologies
  • Work closely with architects, analysts, and other developers to deliver high-quality, scalable solutions
  • Participate in system design reviews, requirement refinements, and technical discussions
  • Optimize existing processes for performance, scalability, and reliability
  • Ensure code quality through testing, code reviews, and adherence to best practices
  • Collaborate within the Scrum/SAFe team to deliver business value incrementally and continuously

Our requirements

  • At least 3 years of experience with Java 8+ and/or Scala
  • Hands-on experience with Apache Spark
  • Proficiency in SQL and Linux Shell scripting
  • Solid knowledge of the Hadoop ecosystem, including: YARN, Sqoop, Hive, Impala, MapReduce, Oozie, etc.
  • Version control and CI/CD tools such as Git, Ansible, Bamboo, or Jenkins
  • Strong understanding of data processing and distributed computing principles
  • Fluent English
  • Residing in Poland required

Optional

  • Experience with functional programming principles (Scala preferred)
  • Exposure to real-time streaming technologies, such as Apache Flink or Apache Kafka
  • Familiarity with data analysis and data modelling
  • Understanding of the SAFe Agile framework and Agile delivery principles
  • Experience with cloud environments (AWS, Azure, or GCP)
  • Familiarity with Python for data manipulation or automation tasks
  • Knowledge of monitoring and logging tools (Grafana, Prometheus, ELK stack)

What we offer

  • 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

Recruitment stages

  • Send your CV
  • Talk to us about your expectations
  • Learn more about our projects and choose the best
  • Start your adventure with Sii!

Sii Sp. z o.o.

Sii is the leading technology consulting, digital transformation, engineering, and business services vendor in Poland. We already employ more than 7 500 professionals and implement projects in a variety of industries for clients from many countries around the world.

The Great Place to Work title, won 10 times in a row, proves that at Sii we create a friendly work environment.

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