We’re looking for a Java Developer who thrives on autonomy and enjoys solving complex data challenges. This role is ideal for someone who combines strong software engineering fundamentals with a passion for real-time data processing.
You’ll be part of a 9-person product team (developers, QA, DevOps, PM), working closely with fellow Java engineers — not a separate data team. We build streaming-first systems using Apache Flink (DataStream API) integrated with Confluent Kafka, backed by Snowflake and MongoDB. You'll design and implement production-grade pipelines, propose data schemas, and work with stakeholders through practices like interface reviews.We don’t expect you to know everything upfront — but we do expect curiosity, initiative, and the ability to deliver working systems with the bigger picture in mind.What You’ll Do
- Design and implement Java applications with a strong focus on real-time data processing
- Build and maintain streaming data pipelines using Apache Flink (DataStream API) and Confluent Kafka
- Propose data models and collaborate with our internal Snowflake experts to optimize pipeline efficiency
- Work with MongoDB and Snowflake for storage and querying
- Write and tune SQL for data transformation and validation
- Contribute to code reviews, CI/CD pipelines, and testing strategies
- Participate in daily standups and planning meetings (remote-friendly)
Requirements
- Strong hands-on experience with Java
- Experience with Apache Flink and Kafka (preferably Confluent platform)
- Comfortable with MongoDB and/or Snowflake in production environments
- Confident writing SQL and working with large-scale data
- Understanding of modern data engineering principles
- Proactive, communicative, and comfortable proposing technical solutions
Nice to Have
- Experience with or interest in dbt (data build tool)
- Understanding of distributed systems and streaming architectures
- Familiarity with AWS
Working Style
- Hybrid or remote, office available in Gdańsk, but not required
- English fluency required (company is USA-based)