Test Lead (Big Data)

Location: Kraków preferred. Other cities may be considered; however, the candidate must be willing to travel to the client’s office in Kraków at least once a month

Responsibilities:

• Define and lead the end-to-end testing strategy for BigData, SAS SPDE Data migration

• Design test plans for data conversion, pipeline validation, and code compatibility

• Coordinate with engineering teams to ensure test coverage across all deliverables

• Manage defect lifecycle and ensure timely resolution

• Collaborate with multiple stakeholders including tenants, ITSOs, architecture / design team teams, network team and vendor SMEs

• Support user training and onboarding for new environments

Requirements:

• Proven expertise in testing Big Data and Data Platform solutions

• Strong knowledge of:

• Operating Systems: Linux, shell scripting

• Storage Systems: Hadoop/HDFS, S3/VAST, Teradata, PostgreSQL

• File Formats: Avro, ORC, Parquet (SPDE is a plus)

• Table Formats: Delta Lake, Apache Iceberg

• Processing Engines: Hive, Spark (experience with Starburst or Databricks is a plus)

• Programming Languages: SAS, Python

• Hands-on experience in building and validating large-scale data pipelines and automation frameworks

• Solid understanding of DML operations, dataset partitioning, and Altair SLC

• Ability to manage complex testing environments independently

• Excellent communication and stakeholder management skills

• Proficiency in English at B2 level or higher

Nice to Have:

• Experience with Altair tools and vendor coordination

• Familiarity with SAS technologies like SAS Macros, DI, DI Studio, and stored processes

Our offer:

• MultiSport Plus

• Group insurance

• Medicover Premium

• e-learning platform