Software Engineer, License Manager

541 Cisco Systems Poland sp. Z o.o.; Kraków; On-site; PLN 180,000 - 280,000; Full time

Job summary

Cisco Systems Poland sp. z o.o. Kraków is seeking a backend engineer to build and evolve License Manager capabilities using Go and C++. You will write scalable, secure code and deliver features with strong test coverage to ensure reliability and performance.

You will collaborate with product management, support, and engineering partners to improve system behavior, diagnose issues, and grow ownership over broader technical areas over time.

Qualifications

• Strong, recent hands-on Go experience building scalable production services.
• Experience with distributed systems, APIs, secure service-to-service communication, and production support.
• Ability to reason about performance, including latency, throughput, memory use, concurrency, and failure modes.
• Strong testing, debugging, and production-troubleshooting skills.

Responsibilities

• Build, test, debug, and maintain core License Manager capabilities using Go and C++.
• Deliver well-scoped features, fixes, and enhancements from design through implementation.
• Write clean, secure code with unit and integration test coverage to improve quality.
• Investigate issues to identify root causes and contribute durable fixes.
• Collaborate with senior engineers, product management, and support to improve system behavior.

Skills

Go

Distributed systems

Performance optimization

Testing & debugging

Tools

C++

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, recent hands-on Go experience building scalable, reliable production services.
• Experience with distributed systems, APIs, secure service-to-service communication, and production support.
• Ability to reason about performance, including latency, throughput, memory use, concurrency, and failure modes.
• Strong testing, debugging, and production-troubleshooting skills.

Preferred Qualifications

• Previous C++ experience sufficient to read, understand, and diagnose behavior in an existing performance-sensitive C++ codebase.
• Experience integrating Go services with legacy systems or contributing to gradual modernization from C++ to Go.
• Experience investigating performance or reliability issues in production systems.
• Python experience, particularly for test development, test tooling, and automation.
• Familiarity with licensing, entitlements, metering, or commercial-platform systems.
• Experience with observability and incident response.

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.