Hadoop Big Data Developer

Hadoop Big Data DeveloperMiejsce pracy: WarszawaTechnologies we useExpected

• 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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