Java Developer (Kafka+Spark)

Be a part of revolutionizing financial data solutions!

Trójmiasto-based opportunity with the possibility to hybrid work!

As a Java Developer, you will be working for our client, a leading financial institution operating in northern Europe. You will join the Accounting Balance Reporting Engine project, focused on processing front-office events for back-office reporting. The role involves developing advanced solutions for complex data flows with Kafka, Spark, and OracleDB (soon transitioning to Cloudera) while contributing to scalable, Big Data-ready infrastructure. You will work in an Agile environment with teammates in Poland and Denmark, leveraging Java and cutting-edge technologies to deliver innovative solutions.

Your main responsibilities:

• Develop and maintain project-related functionality, processing events from front-office to back-office systems
• Work on data enrichment and transformation using Kafka, gRPC, and direct database access for legacy systems
• Use Spark to process large volumes of events efficiently, transitioning to Cloudera Data Platform where applicable
• Implement and maintain Java services using Spring frameworks (spring-batch, spring-kafka, spring-data)
• Manage CI/CD processes for test environments using Bamboo and Bitbucket
• Use Ansible for infrastructure-as-code and participate in transitioning OracleDB-based storage to more Big Data-suitable solutions
• Collaborate with the business team using Jupyter Notebooks (Python + Spark) to integrate input data
• Apply your expertise in Java to deliver high-quality, tested code supported by Cucumber/Gherkin testing frameworks

You're ideal for this role if you have:

• 4 years of experience as a Java Developer
• Proficiency with Spark and Spark SQL
• Strong knowledge of Spring frameworks 
• Experience with CI/CD tools like Bamboo and version control systems such as Git
• Familiarity with Kafka and its integration into event-driven architectures
• Good understanding of relational databases, particularly OracleDB, and the ability to optimize queries
• Knowledge of Kubernetes and Ansible for managing containerized applications and infrastructure
• Strong problem-solving and analytical skills, with experience in agile methodologies (SAFe, Scrum)
• Fluent English 

It is nice if you have: 

• Experience with Cloudera Data Platform and its integration into Big Data environments
• Familiarity with PL/pgSQL and other procedural programming languages for database scripting
• Knowledge of Angular and building applications with RWD (Responsive Web Design) principles
• Understanding of Docker and containerization practices
• Experience with CRM-class systems or within the insurance/financial industry

Internal number #6296