Senior Backend Engineer, Licensing Platform (Go/C++)

541 Cisco Systems Poland sp. Z o.o.; Kraków; On-site; PLN 180,000 - 240,000; Full time

Job summary

Cisco Systems Poland is seeking a License Manager engineer to design, build, test, and maintain core licensing capabilities using Go and C++. You will lead features from design through production delivery, balancing correctness, performance, and security.

Collaborate with product management, support, and engineering teams to translate customer needs into robust technical solutions. You will mentor engineers, contribute to design discussions, and drive best practices to raise engineering quality.

Qualifications

• Strong, hands-on Go experience building scalable, reliable, high-throughput production services.
• Strong, hands-on C++ experience in production systems, including performance-sensitive code, debugging, and design trade-offs.
• Ability to work effectively across Go services and existing C++ components, including integration and incremental modernization work.
• Experience leading technical design for distributed systems, APIs, and secure service-to-service communication.
• Deep ability to diagnose and resolve complex performance, reliability, and production issues.
• Strong automated-testing, observability, and production-support practices.

Responsibilities

• Design, build, test and maintain core License Manager capabilities using Go and C++ to support secure, scalable software functionality.
• Lead complex features from technical design through production delivery, balancing correctness, performance, and maintainability.
• Diagnose and resolve production issues to improve system resilience and operational readiness.
• Collaborate with product management, support, and engineering stakeholders to translate needs into robust technical solutions.
• Mentor engineers, contribute to technical design discussions, and raise engineering quality and practices.

Skills

Go

C++

Distributed systems design

Automated testing

Observability

Debugging & performance

Mentorship

Go/C++ integration

Tools

Kubernetes

Python

Cloud-native

Job description

Cisco Systems Poland is seeking a License Manager engineer to design, build, test, and maintain core licensing capabilities using Go and C++. You will lead features from design through production delivery, balancing correctness, performance, and security.

Collaborate with product management, support, and engineering teams to translate customer needs into robust technical solutions. You will mentor engineers, contribute to design discussions, and drive best practices to raise engineering quality.