TL;DR

Senior Scala Developer (Big Data): Designing, building, and optimizing large-scale distributed data processing pipelines using Scala and Apache Spark with an accent on data quality, scalability, and reliability across multi-terabyte datasets. Focus on developing ETL/ELT workflows, monitoring data quality, and supporting advanced analytics and regulatory reporting use cases.

Location: Hybrid from Gdynia, Gdańsk, or Warszawa (2-3 days per week in office)

Salary: 1100-1300 PLN/day (B2B)

Company

%hirify_global% is a Polish outsourcing company that builds highly specialized teams for clients worldwide, serving as a premier partner for a leading Nordic financial group.

What you will do

Design, build, and optimize large-scale distributed data processing pipelines using Scala and Apache Spark.
Develop and maintain ETL/ELT workflows orchestrated in Airflow and Oozie.
Ensure performance, scalability, and reliability of Spark jobs through tuning, partitioning, and memory optimization.
Implement high-quality, testable code with strong unit and integration test coverage.
Collaborate with data scientists, analysts, and engineering teams to support analytics, AML/KYC, and regulatory reporting use cases.
Monitor data quality, perform profiling, and manage schema consistency across datasets.

Requirements

5-8+ years of software development experience with Scala
3+ years of hands-on experience with big data technologies
Proven experience working with large-scale data processing (multi-terabyte datasets)
Background in financial services or RegTech (preferred).
Experience working in Agile environments (Scrum, SAFe, or similar).
English language proficiency for daily international interaction.

Nice to have

Experience with the Quantexa platform.
Experience migrating workflows from Oozie to Airflow.
Knowledge of data governance and security best practices.
Familiarity with monitoring tools such as Prometheus, Grafana, and the ELK stack.
Understanding of graph analytics and entity resolution techniques.
Exposure to regulatory reporting and compliance systems.

Culture & Benefits

Flexible work organization and work-life balance focus.
International work environment with daily English interaction.
Scandinavian organizational culture conducive to work-life balance and feedback.
Financed additional training and a proprietary professional development program.
Regular integration meetings within the Jit community.
Opportunity to work on over 60 projects for a major Norwegian financial services provider.