Senior Software Engineer, License Manager

541 Cisco Systems Poland sp. Z o.o.; Kraków; On-site; PLN 180,000 - 320,000; Full time

Job summary

Cisco Systems Poland sp. Z o.o. is seeking a backend engineer for the License Manager team.

You will build, test, and maintain core licensing and entitlement capabilities using Go and C++, delivering secure and scalable product functionality. Join a collaborative team working with product management, support, and engineering to improve system behavior, performance, and reliability, while growing ownership across services.

Qualifications

• Hands-on Go experience building scalable, high-throughput services.
• Hands-on C++ experience in production systems with performance considerations.
• Ability to work across Go services and existing C++ components.
• Experience leading design for distributed systems and APIs.
• Strong problem diagnosis for complex performance and reliability issues.
• Automated testing, observability, and production-support practices.

Responsibilities

• Build, test, and maintain core License Manager capabilities using Go and C++ to support secure and scalable product functionality.
• Deliver well-scoped features, fixes, and enhancements from design through implementation.
• Write clean, maintainable, and secure code with strong unit and integration test coverage.
• Investigate production issues to identify root causes and contribute durable fixes.

Skills

Go programming

C++ programming

Go and C++ integration

Distributed systems design

Performance and debugging

Automated testing and observability

Tools

Kubernetes

Cloud-native services

Python

Job description

Meet the Team

The License Manager team builds and evolves the core licensing and entitlement capabilities that power Splunk products. Our work helps customers understand, manage, and stay compliant with their licensed usage through reliable, secure, and high-performance software. We are a collaborative engineering team focused on backend and systems development, with strong partnerships across product management, support, and engineering. The team combines technical depth with a strong sense of ownership and continuous improvement. What makes this team exciting is the opportunity to work on foundational platform capabilities that directly impact customer trust, product reliability, and business operations.

Your Impact

Build, test, debug, and maintain core License Manager capabilities using Go and C++ to support secure, reliable, and scalable product functionality. Deliver well-scoped features, fixes, and enhancements from design through implementation and completion. Write clean, maintainable, and secure code with strong unit and integration test coverage to improve product quality and reliability. Investigate product and production issues to identify root causes and contribute to durable fixes. Collaborate with senior engineers, product management, support, and engineering partners to improve system behavior, deliver customer value, and grow ownership over broader technical areas over time.

Minimum 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.

Preferred Qualifications

• Experience evolving licensing, entitlement, metering, or commercial-platform services.
• Experience designing migration strategies for legacy systems while maintaining production stability.
• Experience mentoring engineers and driving technical decisions across teams.
• Python experience for test tooling and automation.
• Kubernetes and cloud-native service operations.
• Incident leadership and service-reliability engineering experience.

Why Cisco?

At Cisco, we're revolutionizing how data and infrastructure connect and protect organizations in the AI era - and beyond. We've been innovating fearlessly for 40 years to create solutions that power how humans and technology work together across the physical and digital worlds. These solutions provide customers with unparalleled security, visibility, and insights across the entire digital footprint. Fueled by the depth and breadth of our technology, we experiment and create meaningful solutions. Add to that our worldwide network of doers and experts, and you'll see that the opportunities to grow and build are limitless. We work as a team, collaborating with empathy to make really big things happen on a global scale. Because our solutions are everywhere, our impact is everywhere. We are Cisco, and our power starts with you. Cisconians power the future. We make impact as a team, innovating fast and fearlessly to create meaningful solutions on a large scale. The depth and breadth of our technology doesn't just benefit our customers - it also means limitless opportunities for us to experiment and learn. We understand the power each of our unique backgrounds bring when we work together. Because of that, we have a global network of thinkers, doers, experts, and curious creators who help one another do their life's best work.