Software Engineer (Go/C++), Security Foundations Engineering - Splunk

Cisco Systems, Inc; Kraków; Hybrid; PLN 180,000 - 300,000; Full time

Job summary

Cisco Systems, Inc. is seeking a security-focused engineer in Kraków to build and maintain core security components using Go and/or C++.

You will work across design, implementation, and testing to ensure secure, scalable product functionality for SaaS and on-prem offerings. You will collaborate with senior engineers, product management, and support to improve system behavior, deliver customer value, and grow ownership of broader technical areas over time.

Qualifications

• Must have production software experience in Go and/or C++.
• Strong understanding of secure coding and debugging.
• Solid Unix/Linux and networking knowledge, with scripting skills.
• Experience applying cybersecurity fundamentals in software.
• Experience with GenAI tools in engineering workflows.
• Excellent written and spoken English communication.

Responsibilities

• Build, test, debug, and maintain core security components using Go and/or C++.
• Deliver features, fixes, enhancements, and automation from design to completion.
• Write clean, secure code with unit/integration tests to improve reliability.
• Investigate issues, identify root causes, and contribute durable fixes.
• Participate in 24/7 on-call support and broader Ops/SRE responsibilities.
• Collaborate with senior engineers, PM, support, and partners to grow ownership.

Skills

Go and/or C++ production software

Secure coding principles

Unix/Linux + shell scripting

Networking concepts

Cybersecurity fundamentals

GenAI tools adoption

English communication

Education

Bachelor’s degree + 5 years related experience

Bachelor’s degree + 3 years related experience

Masters + 3 years related experience

Tools

Kubernetes

Terraform

CI/CD pipelines

HashiCorp ecosystem

Prometheus

Grafana

Splunk

Job description

Meet the Team

As the Security Foundations Engineering team within the Platform Engineering organization, we own and operate foundational platform security components that enable secure management of secrets, auditing, cryptography, and compliance capabilities across our product portfolio. Our work aligns with internal and external security standards, industry best practices, and rigorous compliance requirements. We are a team of 10+ engineers working in a fast-paced, high-velocity environment, leveraging innovative technologies. Our customers include internal engineering teams as well as end users, and we support critical use cases that ensure the security, compliance, and functionality of our SaaS and On-Prem offerings. We build and maintain a fleet of cloud-based, highly available platform security services deployed across multiple geographic regions on multiple cloud service providers.

Your Impact

Build, test, debug, and maintain core security components and capabilities using Go (and/or C++) to support secure, reliable, and scalable product functionality. Deliver well-scoped features, fixes, enhancements, automation, and operational improvements from design through implementation and completion. Write clean, maintainable, and secure code with strong unit and integration test coverage to improve product quality, reliability, and compliance. Investigate product and production issues to identify root causes and contribute to durable fixes, while participating in 24/7 on-call support and broader Ops/SRE responsibilities to help ensure service availability and operational excellence. Collaborate with senior engineers, product management, support, and engineering partners to improve system behaviour, deliver customer value, and grow ownership over broader technical areas over time.

Minimum Qualifications

• Bachelor’s degree + 5 years of related experience, or Masters + 3 years of related experience
• Bachelor’s degree plus 3 years of related experience
• Professional experience delivering and maintaining production software in Go and/or C++
• Solid foundation in software design, debugging, testing and secure coding principles
• Good understanding of Unix/Linux (including shell scripting), networking concepts and cybersecurity fundamentals
• Ability to troubleshoot technical issues methodically and learn unfamiliar parts of a system
• Experience adopting and applying GenAI tools across software engineering workflows
• Growth mindset, strong desire to learn, try new technologies, and take on new challenges
• Strong verbal and written English communication skills.

Preferred Qualifications

• Hands-on experience with cloud infrastructure across GCP, AWS, or Azure, along with DevOps practices and Site Reliability Engineering.
• Proficiency in containerization technologies and container orchestration with Kubernetes
• Experience with automation tools like Terraform for infrastructure-as-code and CI/CD pipeline management
• Solid understanding of cybersecurity concepts, including secrets management, auditing, cryptography, and compliance, with practical experience using HashiCorp ecosystem and cloud-native security services.
• Experience with observability, monitoring, and logging tools such as Prometheus, Grafana, and Splunk.

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.