Senior Software Engineer (Java/Scala) - Distributed Data

541 Cisco Systems Poland sp. Z o.o.; Kraków; On-site; PLN 200,000 - 320,000; Full time

Job summary

Cisco Systems Poland sp. Z o.o. in Kraków is seeking a Senior Backend Engineer to lead the delivery of federation features and data-lake capabilities, from design through release and ongoing operation.

You will design and build secure, high-performance distributed systems, and improve code quality through automated tests and reviews. You will analyze and optimize query performance, troubleshoot production issues, and collaborate across teams to refine requirements and contribute to the product

Qualifications

• Bachelor’s or higher in CS or related field; 7+ years professional exp.
• Proven backend experience in Java/Scala and distributed systems.
• Experience delivering features end-to-end with testing and deployment.

Responsibilities

• Lead feature delivery from design to production and operation.
• Design secure, high-performance distributed systems and perform testing.
• Analyze query performance, troubleshoot issues, drive reliability.
• Collaborate with partners to refine requirements and roadmaps.
• Mentor engineers and improve development practices.

Skills

Java

Scala

Distributed systems

Backend development

Automated testing

CI/CD

Code reviews

Version control

Education

Bachelor’s degree

Master’s degree

PhD (related)

Tools

Git

Jenkins

CI pipelines

JUnit

Job description

Cisco Systems Poland sp. Z o.o. in Kraków is seeking a Senior Backend Engineer to lead the delivery of federation features and data-lake capabilities, from design through release and ongoing operation.

You will design and build secure, high-performance distributed systems, and improve code quality through automated tests and reviews. You will analyze and optimize query performance, troubleshoot production issues, and collaborate across teams to refine requirements and contribute to the product