Senior Java Developer with AWS expertise

We are looking for a Senior Java Developer with AWS expertise to join our team and contribute to high-priority Cost Basis services aimed at enhancing system resiliency and modernizing APIs. This role involves working in a cloud-native, serverless environment while focusing on improving critical business processes and reducing technical and vendor risks. This role offers a hybrid model, with 3 days per week working from the client's office in Krakow or Gdansk, Poland.

• 3+ years of experience in Java and backend service development
• Hands-on experience with AWS, especially ECS and ElastiCache
• Experience with API design and refactoring using REST and GraphQL
• Familiarity with test automation tools
• Experience with JIRA, Confluence, and production support tooling
• Willingness to utilize agentic AI tools for technical analysis
• Excellent communication skills with a track record of leading technical teams (Tech Lead or Lead Developer)
• English proficiency at B2 level or higher

Nice to have:

• Experience with monitoring and analysis tools like Splunk or Honeycomb
• Knowledge of serverless architecture
• Background in large-scale, distributed environments
• Capability to manage offshore teams and drive end-to-end project delivery

• Implement caching mechanisms for vendor calls within the existing Cost Basis services
• Migrate selected business logic from REST APIs to a new GraphQL service
• Deliver improvements to reduce risk and enhance system stability
• Focus on the SMN application with occasional involvement in other Java-based Cost Basis services
• Collaborate with distributed teams and take on a Tech Lead role in technical initiatives