Big Data Developer to Backend Application Team

PROJECT INFORMATION:Industry: BankingWork model: 3/week in the office in Warsaw, Łódź, Gdańsk or GdyniaRemuneration: up to 170 PLN/h netto + VAT (B2B)SummaryThe primary objective of this role is to bring significant technical expertise in Hadoop and Big Data technologies, contributing to backend application development. The Senior Hadoop / Big Data Developer will enhance the capabilities of the IT/Technology cluster while supporting key projects and initiatives that add value to the organization.Main Responsibilities:Develop and maintain scalable data processing frameworks using Hadoop and Spark.Implement functional programming techniques using Scala.Work collaboratively within the Backend Application capability team to deliver high-quality software solutions.Participate in SAFe framework practices for project management.Optimize SQL queries for performance and efficiency.Utilize version control and CI/CD tools for software deployment.Key Requirements:5+ years of experience with Scala.Proficient in functional programming techniques and principles (Scala).Experience working with Apache Spark.Knowledge of Linux Shell Scripting.Proficiency in SQL.In-depth knowledge of the Hadoop stack, including YARN, Sqoop, Hive, Impala, MapReduce, and Oozie.Familiarity with version control and CI/CD tools (Git, Ansible, Bamboo, Jenkins).Nice to Have:Experience with Java.Familiarity with streaming technologies such as Flink and Kafka.Basic understanding of data analysis practices.Experience with SAFe Agile methodologies.