Senior Data Engineer to $5500

About the Project:

You’ll be part of a strategic initiative for a UK-based client — deploying Visa Fraud Prevention and Monitoring services on AWS Cloud. The role focuses on building and optimizing high-throughput data pipelines using modern Big Data tools and cloud infrastructure.

       Key Requirements:

• 5+ years of hands-on development experience
• Primary language: Scala (preferred) or Java
• Cloud: Strong background in AWS and its ecosystem
• Big Data tools: Apache Spark, Hadoop, Kafka, Hive
• Databases: MySQL, Cassandra
• Streaming platforms: Flink, Spark Streaming, Pinot
• Strong SQL proficiency
• Experience in building large-scale data pipelines (batch & real-time)
• Familiarity with multi-dimensional, high-volume datasets
• Exposure to machine learning model integration is a plus
  
     What You'll Be Doing:
• Design, develop, and maintain scalable data pipelines on AWS
• Write efficient, production-grade code in Scala/Java and SQL
• Integrate and manage real-time streaming systems
• Ensure performance, resilience, and reliability of large transactional systems
• Collaborate with data scientists and DevOps to deliver fraud monitoring capabilities
• Work closely with architects to define and implement Big Data architecture
  
      Ideal for you if:
• You love solving complex data challenges
• You thrive in hybrid teams and enjoy cloud-native architecture
• You’re comfortable working in fast-paced, regulated environments
  
  Location: Warsaw (Hybrid, 2 days/week on-site)